Merge branch 'mc-1.19.x' into mc-1.20.x

- Use GuiGraphics for rendering UI elements. Almost definitely some
   z-fighting issues slipped in here.

 - Use Forge's loot modifier system for handling treasure disks. I have
   mixed feelings about this - it's a nice system, but also is far less
   efficient than the previous approach.

 - Regenerate data. This is the brunt of the commit, but nothing
   especially interesting here.

.github/workflows/main-ci.yml

@@ -8,16 +8,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - name: 📥 Clone repository
+    - name: Clone repository
       uses: actions/checkout@v3
 
-    - name: 📥 Set up Java
+    - name: Set up Java
       uses: actions/setup-java@v3
       with:
         java-version: 17
         distribution: 'temurin'
 
-    - name: 📥 Setup Gradle
+    - name: Setup Gradle
       uses: gradle/gradle-build-action@v2
       with:
         cache-read-only: ${{ !startsWith(github.ref, 'refs/heads/mc-') }}
@@ -27,45 +27,39 @@ jobs:
         mkdir -p ~/.gradle
         echo "org.gradle.daemon=false" >> ~/.gradle/gradle.properties
 
-    - name: ⚒️ Build
-      run: ./gradlew assemble || ./gradlew assemble
+    - name: Build with Gradle
+      run: |
+        ./gradlew assemble || ./gradlew assemble
+        ./gradlew downloadAssets || ./gradlew downloadAssets
+        ./gradlew build
 
-    - name: 💡 Lint
-      uses: pre-commit/action@v3.0.0
-
-    - name: 🧪 Run tests
-      run: ./gradlew test validateMixinNames checkChangelog
-
-    - name: 📥 Download assets for game tests
-      run: ./gradlew downloadAssets || ./gradlew downloadAssets
-
-    - name: 🧪 Run integration tests
-      run: ./gradlew runGametest
-
-    - name: 🧪 Run client tests
+    - name: Run client tests
       run: ./gradlew runGametestClient # Not checkClient, as no point running rendering tests.
       # These are a little flaky on GH actions: its useful to run them, but don't break the build.
       continue-on-error: true
 
-    - name: 🧪 Parse test reports
-      run: ./tools/parse-reports.py
-      if: ${{ failure() }}
-
-    - name: 📦 Prepare Jars
+    - name: Prepare Jars
       run: |
         # Find the main jar and append the git hash onto it.
         mkdir -p jars
         find projects/forge/build/libs projects/fabric/build/libs -type f -regex '.*[0-9.]+\(-SNAPSHOT\)?\.jar$' -exec bash -c 'cp {} "jars/$(basename {} .jar)-$(git rev-parse HEAD).jar"' \;
 
-    - name: 📤 Upload Jar
+    - name: Upload Jar
       uses: actions/upload-artifact@v3
       with:
         name: CC-Tweaked
         path: ./jars
 
-    - name: 📤 Upload coverage
+    - name: Upload coverage
       uses: codecov/codecov-action@v3
 
+    - name: Parse test reports
+      run: ./tools/parse-reports.py
+      if: ${{ failure() }}
+
+    - name: Run linters
+      uses: pre-commit/action@v3.0.0
+
   build-core:
     strategy:
       fail-fast: false

.github/workflows/make-doc.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
     - mc-1.19.x
-    - mc-1.20.x
 
 jobs:
   make_doc:

.reuse/dep5

@@ -6,7 +6,6 @@ Upstream-Contact: Jonathan Coates <git@squiddev.cc>
 Files:
   projects/common/src/main/resources/assets/computercraft/sounds.json
   projects/common/src/main/resources/assets/computercraft/sounds/empty.ogg
-  projects/common/src/testMod/resources/data/cctest/computercraft/turtle_upgrades/*
   projects/common/src/testMod/resources/data/cctest/structures/*
   projects/fabric/src/generated/*
   projects/forge/src/generated/*
@@ -48,7 +47,6 @@ License: MPL-2.0
 
 Files:
   doc/logo.png
-  doc/logo-darkmode.png
   projects/common/src/main/resources/assets/computercraft/models/*
   projects/common/src/main/resources/assets/computercraft/textures/*
   projects/common/src/main/resources/pack.mcmeta

CONTRIBUTING.md

@@ -6,7 +6,7 @@ SPDX-License-Identifier: MPL-2.0
 
 # Contributing to CC: Tweaked
 As with many open source projects, CC: Tweaked thrives on contributions from other people! This document (hopefully)
-provides an introduction as to how to get started with helping out.
+provides an introduction as to how to get started in helping out.
 
 If you've any other questions, [just ask the community][community] or [open an issue][new-issue].
 
@@ -28,7 +28,7 @@ automatically with GitHub, so please don't submit PRs adding/changing translatio
 ## Setting up a development environment
 In order to develop CC: Tweaked, you'll need to download the source code and then run it.
 
- - Make sure you've got the following software installed:
+ - Make sure you've got the following software instealled:
    - Java Development Kit (JDK) installed. This can be downloaded from [Adoptium].
    - [Git](https://git-scm.com/).
    - If you want to work on documentation, [NodeJS][node].
@@ -51,10 +51,10 @@ If you want to run CC:T in a normal Minecraft instance, run `./gradlew assemble`
 ## Developing CC: Tweaked
 Before making any major changes to CC: Tweaked, I'd recommend you have a read of the [the architecture
 document][architecture] first. While it's not a comprehensive document, it gives a good hint of where you should start
-looking to make your changes. As always, if you're not sure, [do ask the community][community]!
+looking to make your changes. As always, if you're not sure [do ask the community][community]!
 
 ### Testing
-When making larger changes, it may be useful to write a test to make sure your code works as expected.
+When making larger changes, it's may be useful to write a test to make sure your code works as expected.
 
 CC: Tweaked has several test suites, each designed to test something different:
 
@@ -91,11 +91,11 @@ file.
 
 Documentation is built using [illuaminate] which, while not currently documented (somewhat ironic), is largely the same
 as [ldoc][ldoc]. Documentation comments are written in Markdown, though note that we do not support many GitHub-specific
-markdown features. If you can, do check what the documentation looks like locally!
+markdown features - if you can, do check what the documentation looks like locally!
 
 When writing long-form documentation (such as the guides in [doc/guides](doc/guides)), I find it useful to tell a
-narrative. Think of what you want the user to learn or achieve, then start introducing a simple concept, and then talk
-about how you can build on that until you've covered everything!
+narrative. Think of what you want the user to learn or achieve, then start introducing a simple concept and then talk
+about how you can build on that, until you've covered everything!
 
 [new-issue]: https://github.com/cc-tweaked/CC-Tweaked/issues/new/choose "Create a new issue"
 [community]: README.md#community "Get in touch with the community."

README.md

@@ -4,12 +4,7 @@ SPDX-FileCopyrightText: 2017 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-<picture>
-  <source media="(prefers-color-scheme: dark)" srcset="./doc/logo-darkmode.png">
-  <source media="(prefers-color-scheme: light)" srcset="./doc/logo.png">
-  <img alt="CC: Tweaked" src="./doc/logo.png">
-</picture>
-
+# ![CC: Tweaked](doc/logo.png)
 [![Current build status](https://github.com/cc-tweaked/CC-Tweaked/workflows/Build/badge.svg)](https://github.com/cc-tweaked/CC-Tweaked/actions "Current build status")
 [![Download CC: Tweaked on CurseForge](https://img.shields.io/static/v1?label=Download&message=CC:%20Tweaked&color=E04E14&logoColor=E04E14&logo=CurseForge)][CurseForge]
 [![Download CC: Tweaked on Modrinth](https://img.shields.io/static/v1?label=Download&color=00AF5C&logoColor=00AF5C&logo=Modrinth&message=CC:%20Tweaked)][Modrinth]
@@ -49,7 +44,7 @@ repositories {
 
 dependencies {
   // Vanilla (i.e. for multi-loader systems)
-  compileOnly("cc.tweaked:cc-tweaked-$mcVersion-common-api:$cctVersion")
+  compileOnly("cc.tweaked:cc-tweaked-$mcVersion-common-api")
 
   // Forge Gradle
   compileOnly("cc.tweaked:cc-tweaked-$mcVersion-core-api:$cctVersion")
@@ -62,19 +57,6 @@ dependencies {
 }
 ```
 
-When using ForgeGradle, you may also need to add the following:
-
-```groovy
-minecraft {
-    runs {
-        configureEach {
-            property 'mixin.env.remapRefMap', 'true'
-            property 'mixin.env.refMapRemappingFile', "${buildDir}/createSrgToMcp/output.srg"
-        }
-    }
-}
-```
-
 You should also be careful to only use classes within the `dan200.computercraft.api` package. Non-API classes are
 subject to change at any point. If you depend on functionality outside the API, file an issue, and we can look into
 exposing more features.

buildSrc/src/main/kotlin/cc-tweaked.forge.gradle.kts

@@ -10,9 +10,8 @@ import cc.tweaked.gradle.IdeaRunConfigurations
 import cc.tweaked.gradle.MinecraftConfigurations
 
 plugins {
-    id("net.minecraftforge.gradle")
-    // We must apply java-convention after Forge, as we need the fg extension to be present.
     id("cc-tweaked.java-convention")
+    id("net.minecraftforge.gradle")
     id("org.parchmentmc.librarian.forgegradle")
 }
 

buildSrc/src/main/kotlin/cc-tweaked.java-convention.gradle.kts

@@ -37,35 +37,20 @@ java {
 
 repositories {
     mavenCentral()
-
-    val mainMaven = maven("https://squiddev.cc/maven") {
+    maven("https://squiddev.cc/maven") {
         name = "SquidDev"
         content {
-            // Until https://github.com/SpongePowered/Mixin/pull/593 is merged
-            includeModule("org.spongepowered", "mixin")
-        }
-    }
-
-    exclusiveContent {
-        forRepositories(mainMaven)
-
-        // Include the ForgeGradle repository if present. This requires that ForgeGradle is already present, which we
-        // enforce in our Forge overlay.
-        val fg =
-            project.extensions.findByType(net.minecraftforge.gradle.userdev.DependencyManagementExtension::class.java)
-        if (fg != null) forRepositories(fg.repository)
-
-        filter {
+            includeGroup("org.squiddev")
             includeGroup("cc.tweaked")
-            includeModule("org.squiddev", "Cobalt")
             // Things we mirror
             includeGroup("dev.architectury")
-            includeGroup("dev.emi")
             includeGroup("maven.modrinth")
-            includeGroup("me.shedaniel.cloth")
             includeGroup("me.shedaniel")
+            includeGroup("me.shedaniel.cloth")
             includeGroup("mezz.jei")
             includeModule("com.terraformersmc", "modmenu")
+            // Until https://github.com/SpongePowered/Mixin/pull/593 is merged
+            includeModule("org.spongepowered", "mixin")
         }
     }
 }
@@ -119,7 +104,6 @@ tasks.withType(JavaCompile::class.java).configureEach {
 
 tasks.processResources {
     exclude("**/*.license")
-    exclude(".cache")
 }
 
 tasks.withType(AbstractArchiveTask::class.java).configureEach {

buildSrc/src/main/kotlin/cc/tweaked/gradle/ForgeExtensions.kt

@@ -1,26 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package cc.tweaked.gradle
-
-import net.minecraftforge.gradle.common.util.RunConfig
-import net.minecraftforge.gradle.common.util.runs.setRunConfigInternal
-import org.gradle.api.plugins.JavaPluginExtension
-import org.gradle.api.tasks.JavaExec
-import org.gradle.jvm.toolchain.JavaToolchainService
-import java.nio.file.Files
-
-/**
- * Set [JavaExec] task to run a given [RunConfig].
- */
-fun JavaExec.setRunConfig(config: RunConfig) {
-    dependsOn("prepareRuns")
-    setRunConfigInternal(project, this, config)
-    doFirst("Create working directory") { Files.createDirectories(workingDir.toPath()) }
-
-    javaLauncher.set(
-        project.extensions.getByType(JavaToolchainService::class.java)
-            .launcherFor(project.extensions.getByType(JavaPluginExtension::class.java).toolchain),
-    )
-}

buildSrc/src/main/kotlin/cc/tweaked/gradle/Illuaminate.kt

@@ -60,7 +60,7 @@ class IlluaminatePlugin : Plugin<Project> {
 
     /** Define a dependency for illuaminate from a version number and the current operating system. */
     private fun illuaminateArtifact(project: Project, version: String): Dependency {
-        val osName = System.getProperty("os.name").lowercase()
+        val osName = System.getProperty("os.name").toLowerCase()
         val (os, suffix) = when {
             osName.contains("windows") -> Pair("windows", ".exe")
             osName.contains("mac os") || osName.contains("darwin") -> Pair("macos", "")
@@ -68,7 +68,7 @@ class IlluaminatePlugin : Plugin<Project> {
             else -> error("Unsupported OS $osName for illuaminate")
         }
 
-        val osArch = System.getProperty("os.arch").lowercase()
+        val osArch = System.getProperty("os.arch").toLowerCase()
         val arch = when {
             // On macOS the x86_64 binary will work for both ARM and Intel Macs through Rosetta.
             os == "macos" -> "x86_64"

buildSrc/src/main/kotlin/cc/tweaked/gradle/MinecraftExec.kt

@@ -4,7 +4,6 @@
 
 package cc.tweaked.gradle
 
-import net.minecraftforge.gradle.common.util.RunConfig
 import org.gradle.api.GradleException
 import org.gradle.api.file.FileSystemOperations
 import org.gradle.api.invocation.Gradle
@@ -33,14 +32,11 @@ abstract class ClientJavaExec : JavaExec() {
         usesService(clientRunner)
     }
 
-    @get:Input
-    val renderdoc get() = project.hasProperty("renderdoc")
-
     /**
      * When [false], tests will not be run automatically, allowing the user to debug rendering.
      */
     @get:Input
-    val clientDebug get() = renderdoc || project.hasProperty("clientDebug")
+    val clientDebug get() = project.hasProperty("clientDebug")
 
     /**
      * When [false], tests will not run under a framebuffer.
@@ -54,25 +50,6 @@ abstract class ClientJavaExec : JavaExec() {
     @get:OutputFile
     val testResults = project.layout.buildDirectory.file("test-results/$name.xml")
 
-    private fun setTestProperties() {
-        if (!clientDebug) systemProperty("cctest.client", "")
-        if (renderdoc) environment("LD_PRELOAD", "/usr/lib/librenderdoc.so")
-        systemProperty("cctest.gametest-report", testResults.get().asFile.absoluteFile)
-        workingDir(project.buildDir.resolve("gametest").resolve(name))
-    }
-
-    init {
-        setTestProperties()
-    }
-
-    /**
-     * Set this task to run a given [RunConfig].
-     */
-    fun setRunConfig(config: RunConfig) {
-        (this as JavaExec).setRunConfig(config)
-        setTestProperties() // setRunConfig may clobber some properties, ensure everything is set.
-    }
-
     /**
      * Copy configuration from a task with the given name.
      */
@@ -84,7 +61,10 @@ abstract class ClientJavaExec : JavaExec() {
     fun copyFrom(task: JavaExec) {
         for (dep in task.dependsOn) dependsOn(dep)
         task.copyToFull(this)
-        setTestProperties() // copyToFull may clobber some properties, ensure everything is set.
+
+        if (!clientDebug) systemProperty("cctest.client", "")
+        systemProperty("cctest.gametest-report", testResults.get().asFile.absoluteFile)
+        workingDir(project.buildDir.resolve("gametest").resolve(name))
     }
 
     /**

buildSrc/src/main/kotlin/net/minecraftforge/gradle/common/util/runs/RunConfigSetup.kt

@@ -1,51 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package net.minecraftforge.gradle.common.util.runs
-
-import net.minecraftforge.gradle.common.util.RunConfig
-import org.gradle.api.Project
-import org.gradle.process.CommandLineArgumentProvider
-import org.gradle.process.JavaExecSpec
-import java.io.File
-import java.util.function.Supplier
-import java.util.stream.Collectors
-import java.util.stream.Stream
-
-/**
- * Set up a [JavaExecSpec] to execute a [RunConfig].
- *
- * [MinecraftRunTask] sets up all its properties when the task is executed, rather than when configured. As such, it's
- * not possible to use [cc.tweaked.gradle.copyToFull] like we do for Fabric. Instead, we set up the task manually.
- *
- * Unfortunately most of the functionality we need is package-private, and so we have to put our code into the package.
- */
-internal fun setRunConfigInternal(project: Project, spec: JavaExecSpec, config: RunConfig) {
-    spec.workingDir = File(config.workingDirectory)
-
-    spec.mainClass.set(config.main)
-    for (source in config.allSources) spec.classpath(source.runtimeClasspath)
-
-    val originalTask = project.tasks.named(config.taskName, MinecraftRunTask::class.java)
-
-    // Add argument and JVM argument via providers, to be as lazy as possible with fetching artifacts.
-    val lazyTokens = RunConfigGenerator.configureTokensLazy(
-        project, config, RunConfigGenerator.mapModClassesToGradle(project, config),
-        originalTask.get().minecraftArtifacts,
-        originalTask.get().runtimeClasspathArtifacts,
-    )
-    spec.argumentProviders.add(
-        CommandLineArgumentProvider {
-            RunConfigGenerator.getArgsStream(config, lazyTokens, false).toList()
-        },
-    )
-    spec.jvmArgumentProviders.add(
-        CommandLineArgumentProvider {
-            (if (config.isClient) config.jvmArgs + originalTask.get().additionalClientArgs.get() else config.jvmArgs).map { config.replace(lazyTokens, it) } +
-                config.properties.map { (k, v) -> "-D${k}=${config.replace(lazyTokens, v)}" }
-        },
-    )
-
-    for ((key, value) in config.environment) spec.environment(key, config.replace(lazyTokens, value))
-}

doc/events/websocket_closed.md

@@ -13,15 +13,6 @@ The @{websocket_closed} event is fired when an open WebSocket connection is clos
 ## Return Values
 1. @{string}: The event name.
 2. @{string}: The URL of the WebSocket that was closed.
-3. <span class="type">@{string}|@{nil}</span>: The [server-provided reason][close_reason]
-   the websocket was closed. This will be @{nil} if the connection was closed
-   abnormally.
-4. <span class="type">@{number}|@{nil}</span>: The [connection close code][close_code],
-   indicating why the socket was closed. This will be @{nil} if the connection
-   was closed abnormally.
-
-[close_reason]: https://www.rfc-editor.org/rfc/rfc6455.html#section-7.1.6 "The WebSocket Connection Close Reason, RFC 6455"
-[close_code]: https://www.rfc-editor.org/rfc/rfc6455.html#section-7.1.5 "The WebSocket Connection Close Code, RFC 6455"
 
 ## Example
 Prints a message when a WebSocket is closed (this may take a minute):

gradle.properties

@@ -10,7 +10,7 @@ kotlin.jvm.target.validation.mode=error
 
 # Mod properties
 isUnstable=false
-modVersion=1.107.0
+modVersion=1.105.0
 
 # Minecraft properties: We want to configure this here so we can read it in settings.gradle
-mcVersion=1.19.4
+mcVersion=1.20

gradle/libs.versions.toml

@@ -7,20 +7,20 @@
 # Minecraft
 # MC version is specified in gradle.properties, as we need that in settings.gradle.
 # Remember to update corresponding versions in fabric.mod.json/mods.toml
-fabric-api = "0.86.1+1.19.4"
+fabric-api = "0.83.0+1.20"
 fabric-loader = "0.14.21"
-forge = "45.0.42"
+forge = "46.0.1"
 forgeSpi = "6.0.0"
 mixin = "0.8.5"
-parchment = "2023.06.26"
-parchmentMc = "1.19.4"
+parchment = "2023.03.12"
+parchmentMc = "1.19.3"
 
 # Normal dependencies
 asm = "9.3"
 autoService = "1.0.1"
 checkerFramework = "3.32.0"
-cobalt = "0.7.1"
-cobalt-next = "0.7.2" # Not a real version, used to constrain the version we accept.
+cobalt = "0.7.0"
+cobalt-next = "0.7.1" # Not a real version, used to constrain the version we accept.
 fastutil = "8.5.9"
 guava = "31.1-jre"
 jetbrainsAnnotations = "24.0.1"
@@ -33,7 +33,6 @@ nightConfig = "3.6.5"
 slf4j = "1.7.36"
 
 # Minecraft mods
-emi = "1.0.8+1.19.4"
 iris = "1.5.2+1.19.4"
 jei = "13.1.0.11"
 modmenu = "6.1.0-rc.1"
@@ -54,16 +53,16 @@ checkstyle = "10.3.4"
 curseForgeGradle = "1.0.14"
 errorProne-core = "2.18.0"
 errorProne-plugin = "3.0.1"
-fabric-loom = "1.3.7"
-forgeGradle = "6.0.8"
+fabric-loom = "1.1.10"
+forgeGradle = "5.1.+"
 githubRelease = "2.2.12"
 ideaExt = "1.1.6"
-illuaminate = "0.1.0-28-ga7efd71"
+illuaminate = "0.1.0-24-gdb28902"
 librarian = "1.+"
 minotaur = "2.+"
 mixinGradle = "0.7.+"
 nullAway = "0.9.9"
-quiltflower = "1.10.0"
+quiltflower = "1.8.0"
 spotless = "6.17.0"
 taskTree = "2.1.1"
 vanillaGradle = "0.2.1-SNAPSHOT"
@@ -93,7 +92,6 @@ slf4j = { module = "org.slf4j:slf4j-api", version.ref = "slf4j" }
 # Minecraft mods
 fabric-api = { module = "net.fabricmc.fabric-api:fabric-api", version.ref = "fabric-api" }
 fabric-loader = { module = "net.fabricmc:fabric-loader", version.ref = "fabric-loader" }
-emi = { module = "dev.emi:emi-xplat-mojmap", version.ref = "emi" }
 iris = { module = "maven.modrinth:iris", version.ref = "iris" }
 jei-api = { module = "mezz.jei:jei-1.19.4-common-api", version.ref = "jei" }
 jei-fabric = { module = "mezz.jei:jei-1.19.4-fabric", version.ref = "jei" }
@@ -152,10 +150,10 @@ kotlin = ["kotlin-stdlib", "kotlin-coroutines"]
 # Minecraft
 externalMods-common = ["jei-api", "nightConfig-core", "nightConfig-toml"]
 externalMods-forge-compile = ["oculus", "jei-api"]
-externalMods-forge-runtime = ["jei-forge"]
+externalMods-forge-runtime = []
 externalMods-fabric = ["nightConfig-core", "nightConfig-toml"]
 externalMods-fabric-compile = ["iris", "jei-api", "rei-api", "rei-builtin"]
-externalMods-fabric-runtime = ["jei-fabric", "modmenu"]
+externalMods-fabric-runtime = []
 
 # Testing
 test = ["junit-jupiter-api", "junit-jupiter-params", "hamcrest", "jqwik-api"]

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.1.1-bin.zip
-networkTimeout=10000
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,11 +80,14 @@ do
     esac
 done
 
-# This is normally unused
-# shellcheck disable=SC2034
-APP_BASE_NAME=${0##*/}
 APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
 
@@ -140,16 +143,12 @@ fi
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
-        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
-        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -194,10 +193,6 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
 # Collect all arguments for the java command;
 #   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
 #     shell script including quotes and variable substitutions, so put them in

gradlew.bat

@@ -26,7 +26,6 @@ if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
 if "%DIRNAME%"=="" set DIRNAME=.
-@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 

projects/common-api/src/client/java/dan200/computercraft/api/client/turtle/TurtleUpgradeModeller.java

@@ -11,13 +11,9 @@ import dan200.computercraft.api.turtle.ITurtleUpgrade;
 import dan200.computercraft.api.turtle.TurtleSide;
 import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
 import net.minecraft.client.resources.model.ModelResourceLocation;
-import net.minecraft.client.resources.model.UnbakedModel;
-import net.minecraft.nbt.CompoundTag;
 import net.minecraft.resources.ResourceLocation;
 
 import javax.annotation.Nullable;
-import java.util.Collection;
-import java.util.List;
 
 /**
  * Provides models for a {@link ITurtleUpgrade}.
@@ -32,45 +28,15 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
      * When the current turtle is {@literal null}, this function should be constant for a given upgrade and side.
      *
      * @param upgrade The upgrade that you're getting the model for.
-     * @param turtle  Access to the turtle that the upgrade resides on. This will be null when getting item models, unless
-     *                {@link #getModel(ITurtleUpgrade, CompoundTag, TurtleSide)} is overriden.
+     * @param turtle  Access to the turtle that the upgrade resides on. This will be null when getting item models!
      * @param side    Which side of the turtle (left or right) the upgrade resides on.
      * @return The model that you wish to be used to render your upgrade.
      */
     TransformedModel getModel(T upgrade, @Nullable ITurtleAccess turtle, TurtleSide side);
 
     /**
-     * Obtain the model to be used when rendering a turtle peripheral.
-     * <p>
-     * This is used when rendering the turtle's item model, and so no {@link ITurtleAccess} is available.
-     *
-     * @param upgrade The upgrade that you're getting the model for.
-     * @param data    Upgrade data instance for current turtle side.
-     * @param side    Which side of the turtle (left or right) the upgrade resides on.
-     * @return The model that you wish to be used to render your upgrade.
-     */
-    default TransformedModel getModel(T upgrade, CompoundTag data, TurtleSide side) {
-        return getModel(upgrade, (ITurtleAccess) null, side);
-    }
-
-
-    /**
-     * Get a list of models that this turtle modeller depends on.
-     * <p>
-     * Models included in this list will be loaded and baked alongside item and block models, and so may be referenced
-     * by {@link TransformedModel#of(ResourceLocation)}. You do not need to override this method if you will load models
-     * by other means.
-     *
-     * @return A list of models that this modeller depends on.
-     * @see UnbakedModel#getDependencies()
-     */
-    default Collection<ResourceLocation> getDependencies() {
-        return List.of();
-    }
-
-    /**
-     * A basic {@link TurtleUpgradeModeller} which renders using the upgrade's {@linkplain ITurtleUpgrade#getUpgradeItem(CompoundTag)}
-     * upgrade item}.
+     * A basic {@link TurtleUpgradeModeller} which renders using the upgrade's {@linkplain ITurtleUpgrade#getCraftingItem()
+     * crafting item}.
      * <p>
      * This uses appropriate transformations for "flat" items, namely those extending the {@literal minecraft:item/generated}
      * model type. It will not appear correct for 3D models with additional depth, such as blocks.
@@ -80,7 +46,7 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
      */
     @SuppressWarnings("unchecked")
     static <T extends ITurtleUpgrade> TurtleUpgradeModeller<T> flatItem() {
-        return (TurtleUpgradeModeller<T>) TurtleUpgradeModellers.UPGRADE_ITEM;
+        return (TurtleUpgradeModeller<T>) TurtleUpgradeModellers.FLAT_ITEM;
     }
 
     /**
@@ -92,8 +58,7 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
      * @return The constructed modeller.
      */
     static <T extends ITurtleUpgrade> TurtleUpgradeModeller<T> sided(ModelResourceLocation left, ModelResourceLocation right) {
-        // TODO(1.21.0): Remove this.
-        return sided((ResourceLocation) left, right);
+        return (upgrade, turtle, side) -> TransformedModel.of(side == TurtleSide.LEFT ? left : right);
     }
 
     /**
@@ -105,16 +70,6 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
      * @return The constructed modeller.
      */
     static <T extends ITurtleUpgrade> TurtleUpgradeModeller<T> sided(ResourceLocation left, ResourceLocation right) {
-        return new TurtleUpgradeModeller<>() {
-            @Override
-            public TransformedModel getModel(T upgrade, @Nullable ITurtleAccess turtle, TurtleSide side) {
-                return TransformedModel.of(side == TurtleSide.LEFT ? left : right);
-            }
-
-            @Override
-            public Collection<ResourceLocation> getDependencies() {
-                return List.of(left, right);
-            }
-        };
+        return (upgrade, turtle, side) -> TransformedModel.of(side == TurtleSide.LEFT ? left : right);
     }
 }

projects/common-api/src/client/java/dan200/computercraft/api/client/turtle/TurtleUpgradeModellers.java

@@ -6,20 +6,13 @@ package dan200.computercraft.api.client.turtle;
 
 import com.mojang.math.Transformation;
 import dan200.computercraft.api.client.TransformedModel;
-import dan200.computercraft.api.turtle.ITurtleAccess;
 import dan200.computercraft.api.turtle.ITurtleUpgrade;
 import dan200.computercraft.api.turtle.TurtleSide;
-import dan200.computercraft.impl.client.ClientPlatformHelper;
-import net.minecraft.client.Minecraft;
-import net.minecraft.nbt.CompoundTag;
-import net.minecraft.world.item.ItemStack;
 import org.joml.Matrix4f;
 
-import javax.annotation.Nullable;
-
 class TurtleUpgradeModellers {
-    private static final Transformation leftTransform = getMatrixFor(-0.4065f);
-    private static final Transformation rightTransform = getMatrixFor(0.4065f);
+    private static final Transformation leftTransform = getMatrixFor(-0.40625f);
+    private static final Transformation rightTransform = getMatrixFor(0.40625f);
 
     private static Transformation getMatrixFor(float offset) {
         var matrix = new Matrix4f();
@@ -33,23 +26,6 @@ class TurtleUpgradeModellers {
         return new Transformation(matrix);
     }
 
-    static final TurtleUpgradeModeller<ITurtleUpgrade> UPGRADE_ITEM = new UpgradeItemModeller();
-
-    private static class UpgradeItemModeller implements TurtleUpgradeModeller<ITurtleUpgrade> {
-        @Override
-        public TransformedModel getModel(ITurtleUpgrade upgrade, @Nullable ITurtleAccess turtle, TurtleSide side) {
-            return getModel(turtle == null ? upgrade.getCraftingItem() : upgrade.getUpgradeItem(turtle.getUpgradeNBTData(side)), side);
-        }
-
-        @Override
-        public TransformedModel getModel(ITurtleUpgrade upgrade, CompoundTag data, TurtleSide side) {
-            return getModel(upgrade.getUpgradeItem(data), side);
-        }
-
-        private TransformedModel getModel(ItemStack stack, TurtleSide side) {
-            var model = Minecraft.getInstance().getItemRenderer().getItemModelShaper().getItemModel(stack);
-            if (stack.hasFoil()) model = ClientPlatformHelper.get().createdFoiledModel(model);
-            return new TransformedModel(model, side == TurtleSide.LEFT ? leftTransform : rightTransform);
-        }
-    }
+    static final TurtleUpgradeModeller<ITurtleUpgrade> FLAT_ITEM = (upgrade, turtle, side) ->
+        TransformedModel.of(upgrade.getCraftingItem(), side == TurtleSide.LEFT ? leftTransform : rightTransform);
 }

projects/common-api/src/client/java/dan200/computercraft/impl/client/ClientPlatformHelper.java

@@ -5,7 +5,6 @@
 package dan200.computercraft.impl.client;
 
 import dan200.computercraft.impl.Services;
-import net.minecraft.client.renderer.RenderType;
 import net.minecraft.client.resources.model.BakedModel;
 import net.minecraft.client.resources.model.ModelManager;
 import net.minecraft.client.resources.model.ModelResourceLocation;
@@ -25,15 +24,6 @@ public interface ClientPlatformHelper {
      */
     BakedModel getModel(ModelManager manager, ResourceLocation location);
 
-    /**
-     * Wrap this model in a version which renders a foil/enchantment glint.
-     *
-     * @param model The model to wrap.
-     * @return The wrapped model.
-     * @see RenderType#glint()
-     */
-    BakedModel createdFoiledModel(BakedModel model);
-
     static ClientPlatformHelper get() {
         var instance = Instance.INSTANCE;
         return instance == null ? Services.raise(ClientPlatformHelper.class, Instance.ERROR) : instance;

projects/common-api/src/main/java/dan200/computercraft/api/pocket/IPocketAccess.java

@@ -5,11 +5,9 @@
 package dan200.computercraft.api.pocket;
 
 import dan200.computercraft.api.peripheral.IPeripheral;
-import dan200.computercraft.api.upgrades.UpgradeBase;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.entity.Entity;
-import net.minecraft.world.item.ItemStack;
 
 import javax.annotation.Nullable;
 import java.util.Map;
@@ -71,8 +69,6 @@ public interface IPocketAccess {
      *
      * @return The upgrade's NBT.
      * @see #updateUpgradeNBTData()
-     * @see UpgradeBase#getUpgradeItem(CompoundTag)
-     * @see UpgradeBase#getUpgradeData(ItemStack)
      */
     CompoundTag getUpgradeNBTData();
 
@@ -84,10 +80,7 @@ public interface IPocketAccess {
     void updateUpgradeNBTData();
 
     /**
-     * Remove the current peripheral and create a new one.
-     * <p>
-     * You may wish to do this if the methods available change, for instance when the {@linkplain #getEntity() owning
-     * entity} changes.
+     * Remove the current peripheral and create a new one. You may wish to do this if the methods available change.
      */
     void invalidatePeripheral();
 
@@ -95,8 +88,6 @@ public interface IPocketAccess {
      * Get a list of all upgrades for the pocket computer.
      *
      * @return A collection of all upgrade names.
-     * @deprecated This is a relic of a previous API, which no longer makes sense with newer versions of ComputerCraft.
      */
-    @Deprecated(forRemoval = true)
     Map<ResourceLocation, IPeripheral> getUpgrades();
 }

projects/common-api/src/main/java/dan200/computercraft/api/pocket/PocketUpgradeSerialiser.java

@@ -4,7 +4,6 @@
 
 package dan200.computercraft.api.pocket;
 
-import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.upgrades.UpgradeBase;
 import dan200.computercraft.api.upgrades.UpgradeSerialiser;
 import dan200.computercraft.impl.ComputerCraftAPIService;
@@ -30,14 +29,6 @@ import java.util.function.Function;
  * @see PocketUpgradeDataProvider
  */
 public interface PocketUpgradeSerialiser<T extends IPocketUpgrade> extends UpgradeSerialiser<T> {
-    /**
-     * The ID for the associated registry.
-     *
-     * @deprecated Use {@link #registryId()} instead.
-     */
-    @Deprecated(forRemoval = true)
-    ResourceKey<Registry<PocketUpgradeSerialiser<?>>> REGISTRY_ID = ResourceKey.createRegistryKey(new ResourceLocation(ComputerCraftAPI.MOD_ID, "pocket_upgrade_serialiser"));
-
     /**
      * The ID for the associated registry.
      *

projects/common-api/src/main/java/dan200/computercraft/api/turtle/ITurtleAccess.java

@@ -8,15 +8,11 @@ import com.mojang.authlib.GameProfile;
 import dan200.computercraft.api.lua.ILuaCallback;
 import dan200.computercraft.api.lua.MethodResult;
 import dan200.computercraft.api.peripheral.IPeripheral;
-import dan200.computercraft.api.upgrades.UpgradeBase;
-import dan200.computercraft.api.upgrades.UpgradeData;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.world.Container;
-import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.Level;
-import net.minecraft.world.phys.Vec3;
 import org.jetbrains.annotations.ApiStatus;
 
 import javax.annotation.Nullable;
@@ -71,29 +67,6 @@ public interface ITurtleAccess {
      */
     boolean teleportTo(Level world, BlockPos pos);
 
-    /**
-     * Returns a vector containing the floating point co-ordinates at which the turtle is rendered.
-     * This will shift when the turtle is moving.
-     *
-     * @param f The subframe fraction.
-     * @return A vector containing the floating point co-ordinates at which the turtle resides.
-     * @see #getVisualYaw(float)
-     * @deprecated Will be removed in 1.20.
-     */
-    @Deprecated(forRemoval = true)
-    Vec3 getVisualPosition(float f);
-
-    /**
-     * Returns the yaw the turtle is facing when it is rendered.
-     *
-     * @param f The subframe fraction.
-     * @return The yaw the turtle is facing.
-     * @see #getVisualPosition(float)
-     * @deprecated Will be removed in 1.20.
-     */
-    @Deprecated(forRemoval = true)
-    float getVisualYaw(float f);
-
     /**
      * Returns the world direction the turtle is currently facing.
      *
@@ -248,51 +221,23 @@ public interface ITurtleAccess {
     void playAnimation(TurtleAnimation animation);
 
     /**
-     * Returns the upgrade on the specified side of the turtle, if there is one.
+     * Returns the turtle on the specified side of the turtle, if there is one.
      *
      * @param side The side to get the upgrade from.
      * @return The upgrade on the specified side of the turtle, if there is one.
-     * @see #getUpgradeWithData(TurtleSide)
-     * @see #setUpgradeWithData(TurtleSide, UpgradeData)
+     * @see #setUpgrade(TurtleSide, ITurtleUpgrade)
      */
     @Nullable
     ITurtleUpgrade getUpgrade(TurtleSide side);
 
-    /**
-     * Returns the upgrade on the specified side of the turtle, along with its {@linkplain #getUpgradeNBTData(TurtleSide)
-     * update data}.
-     *
-     * @param side The side to get the upgrade from.
-     * @return The upgrade on the specified side of the turtle, along with its upgrade data, if there is one.
-     * @see #getUpgradeWithData(TurtleSide)
-     * @see #setUpgradeWithData(TurtleSide, UpgradeData)
-     */
-    default @Nullable UpgradeData<ITurtleUpgrade> getUpgradeWithData(TurtleSide side) {
-        var upgrade = getUpgrade(side);
-        return upgrade == null ? null : UpgradeData.of(upgrade, getUpgradeNBTData(side));
-    }
-
     /**
      * Set the upgrade for a given side, resetting peripherals and clearing upgrade specific data.
      *
      * @param side    The side to set the upgrade on.
      * @param upgrade The upgrade to set, may be {@code null} to clear.
      * @see #getUpgrade(TurtleSide)
-     * @deprecated Use {@link #setUpgradeWithData(TurtleSide, UpgradeData)}
      */
-    @Deprecated
-    default void setUpgrade(TurtleSide side, @Nullable ITurtleUpgrade upgrade) {
-        setUpgradeWithData(side, upgrade == null ? null : UpgradeData.ofDefault(upgrade));
-    }
-
-    /**
-     * Set the upgrade for a given side and its upgrade data.
-     *
-     * @param side    The side to set the upgrade on.
-     * @param upgrade The upgrade to set, may be {@code null} to clear.
-     * @see #getUpgradeWithData(TurtleSide)
-     */
-    void setUpgradeWithData(TurtleSide side, @Nullable UpgradeData<ITurtleUpgrade> upgrade);
+    void setUpgrade(TurtleSide side, @Nullable ITurtleUpgrade upgrade);
 
     /**
      * Returns the peripheral created by the upgrade on the specified side of the turtle, if there is one.
@@ -312,8 +257,6 @@ public interface ITurtleAccess {
      * @param side The side to get the upgrade data for.
      * @return The upgrade-specific data.
      * @see #updateUpgradeNBTData(TurtleSide)
-     * @see UpgradeBase#getUpgradeItem(CompoundTag)
-     * @see UpgradeBase#getUpgradeData(ItemStack)
      */
     CompoundTag getUpgradeNBTData(TurtleSide side);
 

projects/common-api/src/main/java/dan200/computercraft/api/turtle/ITurtleUpgrade.java

@@ -7,7 +7,6 @@ package dan200.computercraft.api.turtle;
 import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.api.upgrades.UpgradeBase;
 import net.minecraft.core.Direction;
-import net.minecraft.nbt.CompoundTag;
 
 import javax.annotation.Nullable;
 
@@ -80,17 +79,4 @@ public interface ITurtleUpgrade extends UpgradeBase {
      */
     default void update(ITurtleAccess turtle, TurtleSide side) {
     }
-
-    /**
-     * Get upgrade data that should be persisted when the turtle was broken.
-     * <p>
-     * This method should be overridden when you don't need to store all upgrade data by default. For instance, if you
-     * store peripheral state in the upgrade data, which should be lost when the turtle is broken.
-     *
-     * @param upgradeData Data that currently stored for this upgrade
-     * @return Filtered version of this data.
-     */
-    default CompoundTag getPersistedData(CompoundTag upgradeData) {
-        return upgradeData;
-    }
 }

projects/common-api/src/main/java/dan200/computercraft/api/turtle/TurtleToolDurability.java

@@ -1,49 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.api.turtle;
-
-import net.minecraft.util.StringRepresentable;
-import net.minecraft.world.entity.EquipmentSlot;
-import net.minecraft.world.item.ItemStack;
-
-/**
- * Indicates if an equipped turtle item will consume durability.
- *
- * @see TurtleUpgradeDataProvider.ToolBuilder#consumeDurability(TurtleToolDurability)
- */
-public enum TurtleToolDurability implements StringRepresentable {
-    /**
-     * The equipped tool always consumes durability when using.
-     */
-    ALWAYS("always"),
-
-    /**
-     * The equipped tool consumes durability if it is {@linkplain ItemStack#isEnchanted() enchanted} or has
-     * {@linkplain ItemStack#getAttributeModifiers(EquipmentSlot) custom attribute modifiers}.
-     */
-    WHEN_ENCHANTED("when_enchanted"),
-
-    /**
-     * The equipped tool never consumes durability. Tools which have been damaged cannot be used as upgrades.
-     */
-    NEVER("never");
-
-    private final String serialisedName;
-
-    /**
-     * The codec which may be used for serialising/deserialising {@link TurtleToolDurability}s.
-     */
-    @SuppressWarnings("deprecation")
-    public static final StringRepresentable.EnumCodec<TurtleToolDurability> CODEC = StringRepresentable.fromEnum(TurtleToolDurability::values);
-
-    TurtleToolDurability(String serialisedName) {
-        this.serialisedName = serialisedName;
-    }
-
-    @Override
-    public String getSerializedName() {
-        return serialisedName;
-    }
-}

projects/common-api/src/main/java/dan200/computercraft/api/turtle/TurtleUpgradeDataProvider.java

@@ -13,10 +13,8 @@ import net.minecraft.data.DataGenerator;
 import net.minecraft.data.PackOutput;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.tags.TagKey;
-import net.minecraft.world.entity.EquipmentSlot;
 import net.minecraft.world.entity.ai.attributes.Attributes;
 import net.minecraft.world.item.Item;
-import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.block.Block;
 
 import javax.annotation.Nullable;
@@ -63,8 +61,6 @@ public abstract class TurtleUpgradeDataProvider extends UpgradeDataProvider<ITur
         private @Nullable Item craftingItem;
         private @Nullable Float damageMultiplier = null;
         private @Nullable TagKey<Block> breakable;
-        private boolean allowEnchantments = false;
-        private TurtleToolDurability consumeDurability = TurtleToolDurability.NEVER;
 
         ToolBuilder(ResourceLocation id, TurtleUpgradeSerialiser<?> serialiser, Item toolItem) {
             this.id = id;
@@ -108,28 +104,6 @@ public abstract class TurtleUpgradeDataProvider extends UpgradeDataProvider<ITur
             return this;
         }
 
-        /**
-         * Indicate that this upgrade allows items which have been {@linkplain ItemStack#isEnchanted() enchanted} or have
-         * {@linkplain ItemStack#getAttributeModifiers(EquipmentSlot) custom attribute modifiers}.
-         *
-         * @return The tool builder, for further use.
-         */
-        public ToolBuilder allowEnchantments() {
-            allowEnchantments = true;
-            return this;
-        }
-
-        /**
-         * Set when the tool will consume durability.
-         *
-         * @param durability The durability predicate.
-         * @return The tool builder, for further use.
-         */
-        public ToolBuilder consumeDurability(TurtleToolDurability durability) {
-            consumeDurability = durability;
-            return this;
-        }
-
         /**
          * Provide a list of breakable blocks. If not given, the tool can break all blocks. If given, only blocks
          * in this tag, those in {@link ComputerCraftTags.Blocks#TURTLE_ALWAYS_BREAKABLE} and "insta-mine" ones can
@@ -158,10 +132,6 @@ public abstract class TurtleUpgradeDataProvider extends UpgradeDataProvider<ITur
                 }
                 if (damageMultiplier != null) s.addProperty("damageMultiplier", damageMultiplier);
                 if (breakable != null) s.addProperty("breakable", breakable.location().toString());
-                if (allowEnchantments) s.addProperty("allowEnchantments", true);
-                if (consumeDurability != TurtleToolDurability.NEVER) {
-                    s.addProperty("consumeDurability", consumeDurability.getSerializedName());
-                }
             }));
         }
     }

projects/common-api/src/main/java/dan200/computercraft/api/turtle/TurtleUpgradeSerialiser.java

@@ -4,7 +4,6 @@
 
 package dan200.computercraft.api.turtle;
 
-import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.upgrades.UpgradeBase;
 import dan200.computercraft.api.upgrades.UpgradeSerialiser;
 import dan200.computercraft.impl.ComputerCraftAPIService;
@@ -65,14 +64,6 @@ import java.util.function.Function;
  * @see dan200.computercraft.api.client.turtle.TurtleUpgradeModeller
  */
 public interface TurtleUpgradeSerialiser<T extends ITurtleUpgrade> extends UpgradeSerialiser<T> {
-    /**
-     * The ID for the associated registry.
-     *
-     * @deprecated Use {@link #registryId()} instead.
-     */
-    @Deprecated(forRemoval = true)
-    ResourceKey<Registry<TurtleUpgradeSerialiser<?>>> REGISTRY_ID = ResourceKey.createRegistryKey(new ResourceLocation(ComputerCraftAPI.MOD_ID, "turtle_upgrade_serialiser"));
-
     /**
      * The ID for the associated registry.
      *

projects/common-api/src/main/java/dan200/computercraft/api/upgrades/UpgradeBase.java

@@ -4,14 +4,10 @@
 
 package dan200.computercraft.api.upgrades;
 
-import dan200.computercraft.api.pocket.IPocketAccess;
 import dan200.computercraft.api.pocket.IPocketUpgrade;
-import dan200.computercraft.api.turtle.ITurtleAccess;
 import dan200.computercraft.api.turtle.ITurtleUpgrade;
-import dan200.computercraft.api.turtle.TurtleSide;
 import dan200.computercraft.impl.PlatformHelper;
 import net.minecraft.Util;
-import net.minecraft.nbt.CompoundTag;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.item.ItemStack;
 
@@ -54,42 +50,6 @@ public interface UpgradeBase {
      */
     ItemStack getCraftingItem();
 
-    /**
-     * Returns the item stack representing a currently equipped turtle upgrade.
-     * <p>
-     * While upgrades can store upgrade data ({@link ITurtleAccess#getUpgradeNBTData(TurtleSide)} and
-     * {@link IPocketAccess#getUpgradeNBTData()}}, by default this data is discarded when an upgrade is unequipped,
-     * and the original item stack is returned.
-     * <p>
-     * By overriding this method, you can create a new {@link ItemStack} which contains enough data to
-     * {@linkplain #getUpgradeData(ItemStack) re-create the upgrade data} if the item is re-equipped.
-     * <p>
-     * When overriding this, you should override {@link #getUpgradeData(ItemStack)} and {@link #isItemSuitable(ItemStack)}
-     * at the same time,
-     *
-     * @param upgradeData The current upgrade data. This should <strong>NOT</strong> be mutated.
-     * @return The item stack returned when unequipping.
-     */
-    default ItemStack getUpgradeItem(CompoundTag upgradeData) {
-        return getCraftingItem();
-    }
-
-    /**
-     * Extract upgrade data from an {@link ItemStack}.
-     * <p>
-     * This upgrade data will be available with {@link ITurtleAccess#getUpgradeNBTData(TurtleSide)} or
-     * {@link IPocketAccess#getUpgradeNBTData()}.
-     * <p>
-     * This should be an inverse to {@link #getUpgradeItem(CompoundTag)}.
-     *
-     * @param stack The stack that was equipped by the turtle or pocket computer. This will have the same item as
-     *              {@link #getCraftingItem()}.
-     * @return The upgrade data that should be set on the turtle or pocket computer.
-     */
-    default CompoundTag getUpgradeData(ItemStack stack) {
-        return new CompoundTag();
-    }
-
     /**
      * Determine if an item is suitable for being used for this upgrade.
      * <p>

projects/common-api/src/main/java/dan200/computercraft/api/upgrades/UpgradeData.java

@@ -1,82 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.api.upgrades;
-
-import dan200.computercraft.api.pocket.IPocketUpgrade;
-import dan200.computercraft.api.turtle.ITurtleUpgrade;
-import net.minecraft.nbt.CompoundTag;
-import net.minecraft.world.item.ItemStack;
-import org.jetbrains.annotations.Contract;
-
-import javax.annotation.Nullable;
-
-/**
- * An upgrade (i.e. a {@link ITurtleUpgrade}) and its current upgrade data.
- * <p>
- * <strong>IMPORTANT:</strong> The {@link #data()} in an upgrade data is often a reference to the original upgrade data.
- * Be careful to take a {@linkplain #copy() defensive copy} if you plan to use the data in this upgrade.
- *
- * @param upgrade The current upgrade.
- * @param data    The upgrade's data.
- * @param <T>     The type of upgrade, either {@link ITurtleUpgrade} or {@link IPocketUpgrade}.
- */
-public record UpgradeData<T extends UpgradeBase>(T upgrade, CompoundTag data) {
-    /**
-     * A utility method to construct a new {@link UpgradeData} instance.
-     *
-     * @param upgrade An upgrade.
-     * @param data    The upgrade's data.
-     * @param <T>     The type of upgrade.
-     * @return The new {@link UpgradeData} instance.
-     */
-    public static <T extends UpgradeBase> UpgradeData<T> of(T upgrade, CompoundTag data) {
-        return new UpgradeData<>(upgrade, data);
-    }
-
-    /**
-     * Create an {@link UpgradeData} containing the default {@linkplain #data() data} for an upgrade.
-     *
-     * @param upgrade The upgrade instance.
-     * @param <T>     The type of upgrade.
-     * @return The default upgrade data.
-     */
-    public static <T extends UpgradeBase> UpgradeData<T> ofDefault(T upgrade) {
-        return of(upgrade, upgrade.getUpgradeData(upgrade.getCraftingItem()));
-    }
-
-    /**
-     * Take a copy of a (possibly {@code null}) {@link UpgradeData} instance.
-     *
-     * @param upgrade The copied upgrade data.
-     * @param <T>     The type of upgrade.
-     * @return The newly created upgrade data.
-     */
-    @Contract("!null -> !null; null -> null")
-    public static <T extends UpgradeBase> @Nullable UpgradeData<T> copyOf(@Nullable UpgradeData<T> upgrade) {
-        return upgrade == null ? null : upgrade.copy();
-    }
-
-    /**
-     * Get the {@linkplain UpgradeBase#getUpgradeItem(CompoundTag) upgrade item} for this upgrade.
-     * <p>
-     * This returns a defensive copy of the item, to prevent accidental mutation of the upgrade data or original
-     * {@linkplain UpgradeBase#getCraftingItem() upgrade stack}.
-     *
-     * @return This upgrade's item.
-     */
-    public ItemStack getUpgradeItem() {
-        return upgrade.getUpgradeItem(data).copy();
-    }
-
-    /**
-     * Take a copy of this {@link UpgradeData}. This returns a new instance with the same upgrade and a fresh copy of
-     * the upgrade data.
-     *
-     * @return A copy of the current instance.
-     */
-    public UpgradeData<T> copy() {
-        return new UpgradeData<>(upgrade(), data().copy());
-    }
-}

projects/common-api/src/main/java/dan200/computercraft/api/upgrades/UpgradeDataProvider.java

@@ -23,7 +23,10 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
 import javax.annotation.Nullable;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
 import java.util.concurrent.CompletableFuture;
 import java.util.function.Consumer;
 import java.util.function.Function;
@@ -101,7 +104,7 @@ public abstract class UpgradeDataProvider<T extends UpgradeBase, R extends Upgra
     protected abstract void addUpgrades(Consumer<Upgrade<R>> addUpgrade);
 
     @Override
-    public CompletableFuture<?> run(CachedOutput cache) {
+    public final CompletableFuture<?> run(CachedOutput cache) {
         var base = output.getOutputFolder().resolve("data");
 
         Set<ResourceLocation> seen = new HashSet<>();
@@ -124,7 +127,7 @@ public abstract class UpgradeDataProvider<T extends UpgradeBase, R extends Upgra
             }
         });
 
-        this.upgrades = Collections.unmodifiableList(upgrades);
+        this.upgrades = upgrades;
         return Util.sequenceFailFast(futures);
     }
 
@@ -163,21 +166,5 @@ public abstract class UpgradeDataProvider<T extends UpgradeBase, R extends Upgra
         public void add(Consumer<Upgrade<R>> add) {
             add.accept(this);
         }
-
-        /**
-         * Return a new {@link Upgrade} which requires the given mod to be present.
-         * <p>
-         * This uses mod-loader-specific hooks (Forge's crafting conditions and Fabric's resource conditions). If using
-         * this in a multi-loader setup, you must generate resources separately for the two loaders.
-         *
-         * @param modId The id of the mod.
-         * @return A new upgrade instance.
-         */
-        public Upgrade<R> requireMod(String modId) {
-            return new Upgrade<>(id, serialiser, json -> {
-                PlatformHelper.get().addRequiredModCondition(json, modId);
-                serialise.accept(json);
-            });
-        }
     }
 }

projects/common-api/src/main/java/dan200/computercraft/impl/PlatformHelper.java

@@ -4,8 +4,6 @@
 
 package dan200.computercraft.impl;
 
-import com.google.gson.JsonObject;
-import dan200.computercraft.api.upgrades.UpgradeDataProvider;
 import net.minecraft.core.Registry;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.resources.ResourceKey;
@@ -65,15 +63,6 @@ public interface PlatformHelper {
         return item.getTag();
     }
 
-    /**
-     * Add a resource condition which requires a mod to be loaded. This should be used by data providers such as
-     * {@link UpgradeDataProvider}.
-     *
-     * @param object The JSON object we're generating.
-     * @param modId  The mod ID that we require.
-     */
-    void addRequiredModCondition(JsonObject object, String modId);
-
     final class Instance {
         static final @Nullable PlatformHelper INSTANCE;
         static final @Nullable Throwable ERROR;

projects/common/build.gradle.kts

@@ -7,7 +7,6 @@ import cc.tweaked.gradle.clientClasses
 import cc.tweaked.gradle.commonClasses
 
 plugins {
-    id("cc-tweaked.publishing")
     id("cc-tweaked.vanilla")
     id("cc-tweaked.gametest")
 }
@@ -26,7 +25,6 @@ dependencies {
     clientImplementation(clientClasses(project(":common-api")))
 
     compileOnly(libs.bundles.externalMods.common)
-    clientCompileOnly(variantOf(libs.emi) { classifier("api") })
 
     compileOnly(libs.mixin)
     annotationProcessorEverywhere(libs.autoService)

projects/common/src/client/java/dan200/computercraft/client/ClientRegistry.java

@@ -13,7 +13,6 @@ import dan200.computercraft.client.render.RenderTypes;
 import dan200.computercraft.client.render.TurtleBlockEntityRenderer;
 import dan200.computercraft.client.render.monitor.MonitorBlockEntityRenderer;
 import dan200.computercraft.client.turtle.TurtleModemModeller;
-import dan200.computercraft.client.turtle.TurtleUpgradeModellers;
 import dan200.computercraft.core.util.Colour;
 import dan200.computercraft.shared.ModRegistry;
 import dan200.computercraft.shared.common.IColouredItem;
@@ -108,6 +107,24 @@ public final class ClientRegistry {
     }
 
     private static final String[] EXTRA_MODELS = new String[]{
+        // Turtle upgrades
+        "block/turtle_modem_normal_off_left",
+        "block/turtle_modem_normal_on_left",
+        "block/turtle_modem_normal_off_right",
+        "block/turtle_modem_normal_on_right",
+
+        "block/turtle_modem_advanced_off_left",
+        "block/turtle_modem_advanced_on_left",
+        "block/turtle_modem_advanced_off_right",
+        "block/turtle_modem_advanced_on_right",
+
+        "block/turtle_crafting_table_left",
+        "block/turtle_crafting_table_right",
+
+        "block/turtle_speaker_left",
+        "block/turtle_speaker_right",
+
+        // Turtle block renderer
         "block/turtle_colour",
         "block/turtle_elf_overlay",
         "block/turtle_rainbow_overlay",
@@ -116,7 +133,6 @@ public final class ClientRegistry {
 
     public static void registerExtraModels(Consumer<ResourceLocation> register) {
         for (var model : EXTRA_MODELS) register.accept(new ResourceLocation(ComputerCraftAPI.MOD_ID, model));
-        TurtleUpgradeModellers.getDependencies().forEach(register);
     }
 
     public static void registerItemColours(BiConsumer<ItemColor, ItemLike> register) {

projects/common/src/client/java/dan200/computercraft/client/gui/AbstractComputerScreen.java

@@ -4,7 +4,6 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.client.gui.widgets.ComputerSidebar;
 import dan200.computercraft.client.gui.widgets.DynamicImageButton;
 import dan200.computercraft.client.gui.widgets.TerminalWidget;
@@ -19,6 +18,7 @@ import dan200.computercraft.shared.config.Config;
 import dan200.computercraft.shared.network.server.UploadFileMessage;
 import net.minecraft.ChatFormatting;
 import net.minecraft.Util;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.screens.inventory.AbstractContainerScreen;
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.entity.player.Inventory;
@@ -124,10 +124,10 @@ public abstract class AbstractComputerScreen<T extends AbstractComputerMenu> ext
     }
 
     @Override
-    public void render(PoseStack stack, int mouseX, int mouseY, float partialTicks) {
-        renderBackground(stack);
-        super.render(stack, mouseX, mouseY, partialTicks);
-        renderTooltip(stack, mouseX, mouseY);
+    public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        renderBackground(graphics);
+        super.render(graphics, mouseX, mouseY, partialTicks);
+        renderTooltip(graphics, mouseX, mouseY);
     }
 
     @Override
@@ -147,7 +147,7 @@ public abstract class AbstractComputerScreen<T extends AbstractComputerMenu> ext
 
 
     @Override
-    protected void renderLabels(PoseStack transform, int mouseX, int mouseY) {
+    protected void renderLabels(GuiGraphics graphics, int mouseX, int mouseY) {
         // Skip rendering labels.
     }
 

projects/common/src/client/java/dan200/computercraft/client/gui/ComputerScreen.java

@@ -4,11 +4,11 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.client.gui.widgets.ComputerSidebar;
 import dan200.computercraft.client.gui.widgets.TerminalWidget;
 import dan200.computercraft.client.render.ComputerBorderRenderer;
 import dan200.computercraft.shared.computer.inventory.AbstractComputerMenu;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.entity.player.Inventory;
 
@@ -36,13 +36,14 @@ public final class ComputerScreen<T extends AbstractComputerMenu> extends Abstra
     }
 
     @Override
-    public void renderBg(PoseStack stack, float partialTicks, int mouseX, int mouseY) {
+    public void renderBg(GuiGraphics graphics, float partialTicks, int mouseX, int mouseY) {
         // Draw a border around the terminal
         var terminal = getTerminal();
+        var texture = ComputerBorderRenderer.getTexture(family);
         ComputerBorderRenderer.render(
-            stack.last().pose(), ComputerBorderRenderer.getTexture(family), terminal.getX(), terminal.getY(),
+            graphics.pose().last().pose(), texture, terminal.getX(), terminal.getY(),
             FULL_BRIGHT_LIGHTMAP, terminal.getWidth(), terminal.getHeight()
         );
-        ComputerSidebar.renderBackground(stack, leftPos, topPos + sidebarYOffset);
+        ComputerSidebar.renderBackground(graphics, texture, leftPos, topPos + sidebarYOffset);
     }
 }

projects/common/src/client/java/dan200/computercraft/client/gui/DiskDriveScreen.java

@@ -4,9 +4,8 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.shared.peripheral.diskdrive.DiskDriveMenu;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.screens.inventory.AbstractContainerScreen;
 import net.minecraft.network.chat.Component;
 import net.minecraft.resources.ResourceLocation;
@@ -23,16 +22,14 @@ public class DiskDriveScreen extends AbstractContainerScreen<DiskDriveMenu> {
     }
 
     @Override
-    protected void renderBg(PoseStack transform, float partialTicks, int mouseX, int mouseY) {
-        RenderSystem.setShaderColor(1.0F, 1.0F, 1.0F, 1.0F);
-        RenderSystem.setShaderTexture(0, BACKGROUND);
-        blit(transform, leftPos, topPos, 0, 0, imageWidth, imageHeight);
+    protected void renderBg(GuiGraphics graphics, float partialTicks, int mouseX, int mouseY) {
+        graphics.blit(BACKGROUND, leftPos, topPos, 0, 0, imageWidth, imageHeight);
     }
 
     @Override
-    public void render(PoseStack transform, int mouseX, int mouseY, float partialTicks) {
-        renderBackground(transform);
-        super.render(transform, mouseX, mouseY, partialTicks);
-        renderTooltip(transform, mouseX, mouseY);
+    public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        renderBackground(graphics);
+        super.render(graphics, mouseX, mouseY, partialTicks);
+        renderTooltip(graphics, mouseX, mouseY);
     }
 }

projects/common/src/client/java/dan200/computercraft/client/gui/ItemToast.java

@@ -4,10 +4,8 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.PoseStack;
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.gui.GuiComponent;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.toasts.Toast;
 import net.minecraft.client.gui.components.toasts.ToastComponent;
 import net.minecraft.network.chat.Component;
@@ -73,55 +71,52 @@ public class ItemToast implements Toast {
     }
 
     @Override
-    public Visibility render(PoseStack transform, ToastComponent component, long time) {
+    public Visibility render(GuiGraphics graphics, ToastComponent component, long time) {
         if (isNew) {
 
             firstDisplay = time;
             isNew = false;
         }
 
-        RenderSystem.setShaderTexture(0, TEXTURE);
-        RenderSystem.setShaderColor(1.0F, 1.0F, 1.0F, 1.0F);
-
         if (width == 160 && message.size() <= 1) {
-            GuiComponent.blit(transform, 0, 0, 0, 64, width, height());
+            graphics.blit(TEXTURE, 0, 0, 0, 64, width, height());
         } else {
 
             var height = height();
 
             var bottom = Math.min(4, height - 28);
-            renderBackgroundRow(transform, component, width, 0, 0, 28);
+            renderBackgroundRow(graphics, width, 0, 0, 28);
 
             for (var i = 28; i < height - bottom; i += 10) {
-                renderBackgroundRow(transform, component, width, 16, i, Math.min(16, height - i - bottom));
+                renderBackgroundRow(graphics, width, 16, i, Math.min(16, height - i - bottom));
             }
 
-            renderBackgroundRow(transform, component, width, 32 - bottom, height - bottom, bottom);
+            renderBackgroundRow(graphics, width, 32 - bottom, height - bottom, bottom);
         }
 
         var textX = MARGIN;
         if (!stack.isEmpty()) {
             textX += MARGIN + IMAGE_SIZE;
-            component.getMinecraft().getItemRenderer().renderAndDecorateFakeItem(transform, stack, MARGIN, MARGIN + height() / 2 - IMAGE_SIZE);
+            graphics.renderFakeItem(stack, MARGIN, MARGIN + height() / 2 - IMAGE_SIZE);
         }
 
-        component.getMinecraft().font.draw(transform, title, textX, MARGIN, 0xff500050);
+        graphics.drawString(component.getMinecraft().font, title, textX, MARGIN, 0xff500050);
         for (var i = 0; i < message.size(); ++i) {
-            component.getMinecraft().font.draw(transform, message.get(i), textX, (float) (LINE_SPACING + (i + 1) * LINE_SPACING), 0xff000000);
+            graphics.drawString(component.getMinecraft().font, message.get(i), textX, LINE_SPACING + (i + 1) * LINE_SPACING, 0xff000000);
         }
 
         return time - firstDisplay < DISPLAY_TIME ? Visibility.SHOW : Visibility.HIDE;
     }
 
-    private static void renderBackgroundRow(PoseStack transform, ToastComponent component, int x, int u, int y, int height) {
+    private static void renderBackgroundRow(GuiGraphics graphics, int x, int u, int y, int height) {
         var leftOffset = 5;
         var rightOffset = Math.min(60, x - leftOffset);
 
-        GuiComponent.blit(transform, 0, y, 0, 32 + u, leftOffset, height);
+        graphics.blit(TEXTURE, 0, y, 0, 32 + u, leftOffset, height);
         for (var k = leftOffset; k < x - rightOffset; k += 64) {
-            GuiComponent.blit(transform, k, y, 32, 32 + u, Math.min(64, x - k - rightOffset), height);
+            graphics.blit(TEXTURE, k, y, 32, 32 + u, Math.min(64, x - k - rightOffset), height);
         }
 
-        GuiComponent.blit(transform, x - rightOffset, y, 160 - rightOffset, 32 + u, rightOffset, height);
+        graphics.blit(TEXTURE, x - rightOffset, y, 160 - rightOffset, 32 + u, rightOffset, height);
     }
 }

projects/common/src/client/java/dan200/computercraft/client/gui/NoTermComputerScreen.java

@@ -4,11 +4,11 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.client.gui.widgets.TerminalWidget;
 import dan200.computercraft.core.terminal.Terminal;
 import dan200.computercraft.shared.computer.inventory.AbstractComputerMenu;
 import net.minecraft.client.KeyMapping;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.screens.Screen;
 import net.minecraft.client.gui.screens.inventory.MenuAccess;
 import net.minecraft.network.chat.Component;
@@ -42,7 +42,7 @@ public class NoTermComputerScreen<T extends AbstractComputerMenu> extends Screen
 
     @Override
     protected void init() {
-        passEvents = true; // Pass mouse vents through to the game's mouse handler.
+        // FIXME: passEvents = true; // Pass mouse vents through to the game's mouse handler.
         // First ensure we're still grabbing the mouse, so the user can look around. Then reset bits of state that
         // grabbing unsets.
         minecraft.mouseHandler.grabMouse();
@@ -91,15 +91,15 @@ public class NoTermComputerScreen<T extends AbstractComputerMenu> extends Screen
     }
 
     @Override
-    public void render(PoseStack transform, int mouseX, int mouseY, float partialTicks) {
-        super.render(transform, mouseX, mouseY, partialTicks);
+    public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        super.render(graphics, mouseX, mouseY, partialTicks);
 
         var font = minecraft.font;
         var lines = font.split(Component.translatable("gui.computercraft.pocket_computer_overlay"), (int) (width * 0.8));
-        var y = 10.0f;
+        var y = 10;
         for (var line : lines) {
-            font.drawShadow(transform, line, (float) ((width / 2) - (minecraft.font.width(line) / 2)), y, 0xFFFFFF);
-            y += 9.0f;
+            graphics.drawString(font, line, (width / 2) - (minecraft.font.width(line) / 2), y, 0xFFFFFF, true);
+            y += 9;
         }
     }
 }

projects/common/src/client/java/dan200/computercraft/client/gui/OptionScreen.java

@@ -4,9 +4,8 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.PoseStack;
 import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.AbstractWidget;
 import net.minecraft.client.gui.components.Button;
 import net.minecraft.client.gui.components.MultiLineLabel;
@@ -86,20 +85,19 @@ public final class OptionScreen extends Screen {
     }
 
     @Override
-    public void render(PoseStack transform, int mouseX, int mouseY, float partialTicks) {
-        renderBackground(transform);
+    public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        renderBackground(graphics);
 
         // Render the actual texture.
-        RenderSystem.setShaderTexture(0, BACKGROUND);
-        blit(transform, x, y, 0, 0, innerWidth, PADDING);
-        blit(transform,
+        graphics.blit(BACKGROUND, x, y, 0, 0, innerWidth, PADDING);
+        graphics.blit(BACKGROUND,
             x, y + PADDING, 0, PADDING, innerWidth, innerHeight - PADDING * 2,
             innerWidth, PADDING
         );
-        blit(transform, x, y + innerHeight - PADDING, 0, 256 - PADDING, innerWidth, PADDING);
+        graphics.blit(BACKGROUND, x, y + innerHeight - PADDING, 0, 256 - PADDING, innerWidth, PADDING);
 
-        assertNonNull(messageRenderer).renderLeftAlignedNoShadow(transform, x + PADDING, y + PADDING, FONT_HEIGHT, 0x404040);
-        super.render(transform, mouseX, mouseY, partialTicks);
+        assertNonNull(messageRenderer).renderLeftAlignedNoShadow(graphics, x + PADDING, y + PADDING, FONT_HEIGHT, 0x404040);
+        super.render(graphics, mouseX, mouseY, partialTicks);
     }
 
     @Override

projects/common/src/client/java/dan200/computercraft/client/gui/PrinterScreen.java

@@ -4,9 +4,8 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.shared.peripheral.printer.PrinterMenu;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.screens.inventory.AbstractContainerScreen;
 import net.minecraft.network.chat.Component;
 import net.minecraft.resources.ResourceLocation;
@@ -23,18 +22,16 @@ public class PrinterScreen extends AbstractContainerScreen<PrinterMenu> {
     }
 
     @Override
-    protected void renderBg(PoseStack transform, float partialTicks, int mouseX, int mouseY) {
-        RenderSystem.setShaderColor(1.0F, 1.0F, 1.0F, 1.0F);
-        RenderSystem.setShaderTexture(0, BACKGROUND);
-        blit(transform, leftPos, topPos, 0, 0, imageWidth, imageHeight);
+    protected void renderBg(GuiGraphics graphics, float partialTicks, int mouseX, int mouseY) {
+        graphics.blit(BACKGROUND, leftPos, topPos, 0, 0, imageWidth, imageHeight);
 
-        if (getMenu().isPrinting()) blit(transform, leftPos + 34, topPos + 21, 176, 0, 25, 45);
+        if (getMenu().isPrinting()) graphics.blit(BACKGROUND, leftPos + 34, topPos + 21, 176, 0, 25, 45);
     }
 
     @Override
-    public void render(PoseStack stack, int mouseX, int mouseY, float partialTicks) {
-        renderBackground(stack);
-        super.render(stack, mouseX, mouseY, partialTicks);
-        renderTooltip(stack, mouseX, mouseY);
+    public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        renderBackground(graphics);
+        super.render(graphics, mouseX, mouseY, partialTicks);
+        renderTooltip(graphics, mouseX, mouseY);
     }
 }

projects/common/src/client/java/dan200/computercraft/client/gui/PrintoutScreen.java

@@ -4,12 +4,11 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.PoseStack;
 import com.mojang.blaze3d.vertex.Tesselator;
 import dan200.computercraft.core.terminal.TextBuffer;
 import dan200.computercraft.shared.common.HeldItemMenu;
 import dan200.computercraft.shared.media.items.PrintoutItem;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.screens.inventory.AbstractContainerScreen;
 import net.minecraft.client.renderer.MultiBufferSource;
 import net.minecraft.network.chat.Component;
@@ -83,30 +82,27 @@ public class PrintoutScreen extends AbstractContainerScreen<HeldItemMenu> {
     }
 
     @Override
-    protected void renderBg(PoseStack transform, float partialTicks, int mouseX, int mouseY) {
+    protected void renderBg(GuiGraphics graphics, float partialTicks, int mouseX, int mouseY) {
         // Draw the printout
-        RenderSystem.setShaderColor(1.0f, 1.0f, 1.0f, 1.0f);
-        RenderSystem.enableDepthTest();
-
         var renderer = MultiBufferSource.immediate(Tesselator.getInstance().getBuilder());
-        drawBorder(transform, renderer, leftPos, topPos, 0, page, pages, book, FULL_BRIGHT_LIGHTMAP);
-        drawText(transform, renderer, leftPos + X_TEXT_MARGIN, topPos + Y_TEXT_MARGIN, PrintoutItem.LINES_PER_PAGE * page, FULL_BRIGHT_LIGHTMAP, text, colours);
+        drawBorder(graphics.pose(), renderer, leftPos, topPos, 0, page, pages, book, FULL_BRIGHT_LIGHTMAP);
+        drawText(graphics.pose(), renderer, leftPos + X_TEXT_MARGIN, topPos + Y_TEXT_MARGIN, PrintoutItem.LINES_PER_PAGE * page, FULL_BRIGHT_LIGHTMAP, text, colours);
         renderer.endBatch();
     }
 
     @Override
-    public void render(PoseStack stack, int mouseX, int mouseY, float partialTicks) {
+    public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
         // We must take the background further back in order to not overlap with our printed pages.
-        stack.pushPose();
-        stack.translate(0, 0, -1);
-        renderBackground(stack);
-        stack.popPose();
+        graphics.pose().pushPose();
+        graphics.pose().translate(0, 0, -1);
+        renderBackground(graphics);
+        graphics.pose().popPose();
 
-        super.render(stack, mouseX, mouseY, partialTicks);
+        super.render(graphics, mouseX, mouseY, partialTicks);
     }
 
     @Override
-    protected void renderLabels(PoseStack transform, int mouseX, int mouseY) {
+    protected void renderLabels(GuiGraphics graphics, int mouseX, int mouseY) {
         // Skip rendering labels.
     }
 }

projects/common/src/client/java/dan200/computercraft/client/gui/TurtleScreen.java

@@ -4,8 +4,6 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.client.gui.widgets.ComputerSidebar;
 import dan200.computercraft.client.gui.widgets.TerminalWidget;
@@ -13,6 +11,7 @@ import dan200.computercraft.client.render.ComputerBorderRenderer;
 import dan200.computercraft.shared.computer.core.ComputerFamily;
 import dan200.computercraft.shared.computer.inventory.AbstractComputerMenu;
 import dan200.computercraft.shared.turtle.inventory.TurtleMenu;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.network.chat.Component;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.entity.player.Inventory;
@@ -26,11 +25,9 @@ public class TurtleScreen extends AbstractComputerScreen<TurtleMenu> {
     private static final ResourceLocation BACKGROUND_NORMAL = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/turtle_normal.png");
     private static final ResourceLocation BACKGROUND_ADVANCED = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/turtle_advanced.png");
 
-    private static final int TEX_WIDTH = 278;
+    private static final int TEX_WIDTH = 254;
     private static final int TEX_HEIGHT = 217;
 
-    private static final int FULL_TEX_SIZE = 512;
-
     public TurtleScreen(TurtleMenu container, Inventory player, Component title) {
         super(container, player, title, BORDER);
 
@@ -44,23 +41,21 @@ public class TurtleScreen extends AbstractComputerScreen<TurtleMenu> {
     }
 
     @Override
-    protected void renderBg(PoseStack transform, float partialTicks, int mouseX, int mouseY) {
+    protected void renderBg(GuiGraphics graphics, float partialTicks, int mouseX, int mouseY) {
         var advanced = family == ComputerFamily.ADVANCED;
-        RenderSystem.setShaderTexture(0, advanced ? BACKGROUND_ADVANCED : BACKGROUND_NORMAL);
-        blit(transform, leftPos + AbstractComputerMenu.SIDEBAR_WIDTH, topPos, 0, 0, 0, TEX_WIDTH, TEX_HEIGHT, FULL_TEX_SIZE, FULL_TEX_SIZE);
+        var texture = advanced ? BACKGROUND_ADVANCED : BACKGROUND_NORMAL;
+        graphics.blit(texture, leftPos + AbstractComputerMenu.SIDEBAR_WIDTH, topPos, 0, 0, TEX_WIDTH, TEX_HEIGHT);
 
-        // Render selected slot
         var slot = getMenu().getSelectedSlot();
         if (slot >= 0) {
             var slotX = slot % 4;
             var slotY = slot / 4;
-            blit(transform,
-                leftPos + TURTLE_START_X - 2 + slotX * 18, topPos + PLAYER_START_Y - 2 + slotY * 18, 0,
-                0, 217, 24, 24, FULL_TEX_SIZE, FULL_TEX_SIZE
+            graphics.blit(texture,
+                leftPos + TURTLE_START_X - 2 + slotX * 18, topPos + PLAYER_START_Y - 2 + slotY * 18,
+                0, 217, 24, 24
             );
         }
 
-        RenderSystem.setShaderTexture(0, advanced ? ComputerBorderRenderer.BACKGROUND_ADVANCED : ComputerBorderRenderer.BACKGROUND_NORMAL);
-        ComputerSidebar.renderBackground(transform, leftPos, topPos + sidebarYOffset);
+        ComputerSidebar.renderBackground(graphics, ComputerBorderRenderer.getTexture(family), leftPos, topPos + sidebarYOffset);
     }
 }

projects/common/src/client/java/dan200/computercraft/client/gui/widgets/ComputerSidebar.java

@@ -4,14 +4,13 @@
 
 package dan200.computercraft.client.gui.widgets;
 
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.client.gui.widgets.DynamicImageButton.HintedMessage;
 import dan200.computercraft.client.render.ComputerBorderRenderer;
 import dan200.computercraft.shared.computer.core.InputHandler;
 import dan200.computercraft.shared.computer.inventory.AbstractComputerMenu;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.AbstractWidget;
-import net.minecraft.client.gui.screens.Screen;
 import net.minecraft.network.chat.Component;
 import net.minecraft.resources.ResourceLocation;
 
@@ -68,19 +67,19 @@ public final class ComputerSidebar {
         ));
     }
 
-    public static void renderBackground(PoseStack transform, int x, int y) {
-        Screen.blit(transform,
+    public static void renderBackground(GuiGraphics graphics, ResourceLocation texture, int x, int y) {
+        graphics.blit(texture,
             x, y, 0, 102, AbstractComputerMenu.SIDEBAR_WIDTH, FULL_BORDER,
             ComputerBorderRenderer.TEX_SIZE, ComputerBorderRenderer.TEX_SIZE
         );
 
-        Screen.blit(transform,
+        graphics.blit(texture,
             x, y + FULL_BORDER, AbstractComputerMenu.SIDEBAR_WIDTH, HEIGHT - FULL_BORDER * 2,
             0, 107, AbstractComputerMenu.SIDEBAR_WIDTH, 4,
             ComputerBorderRenderer.TEX_SIZE, ComputerBorderRenderer.TEX_SIZE
         );
 
-        Screen.blit(transform,
+        graphics.blit(texture,
             x, y + HEIGHT - FULL_BORDER, 0, 111, AbstractComputerMenu.SIDEBAR_WIDTH, FULL_BORDER,
             ComputerBorderRenderer.TEX_SIZE, ComputerBorderRenderer.TEX_SIZE
         );

projects/common/src/client/java/dan200/computercraft/client/gui/widgets/DynamicImageButton.java

@@ -5,8 +5,8 @@
 package dan200.computercraft.client.gui.widgets;
 
 import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.PoseStack;
 import net.minecraft.ChatFormatting;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.Button;
 import net.minecraft.client.gui.components.Tooltip;
 import net.minecraft.network.chat.Component;
@@ -57,23 +57,25 @@ public class DynamicImageButton extends Button {
     }
 
     @Override
-    public void renderWidget(PoseStack stack, int mouseX, int mouseY, float partialTicks) {
-        RenderSystem.setShaderTexture(0, texture);
-        RenderSystem.disableDepthTest();
+    public void renderWidget(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        RenderSystem.enableBlend();
+        RenderSystem.enableDepthTest();
 
         var yTex = yTexStart;
         if (isHoveredOrFocused()) yTex += yDiffTex;
 
-        blit(stack, getX(), getY(), xTexStart.getAsInt(), yTex, width, height, textureWidth, textureHeight);
-        RenderSystem.enableDepthTest();
+        graphics.blit(texture, getX(), getY(), xTexStart.getAsInt(), yTex, width, height, textureWidth, textureHeight);
     }
 
     @Override
-    public void render(PoseStack stack, int mouseX, int mouseY, float partialTicks) {
-        var message = this.message.get();
-        setMessage(message.message());
-        setTooltip(message.tooltip());
-        super.render(stack, mouseX, mouseY, partialTicks);
+    public Component getMessage() {
+        return message.get().message;
+    }
+
+    @Override
+    public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        setTooltip(message.get().tooltip());
+        super.render(graphics, mouseX, mouseY, partialTicks);
     }
 
     public record HintedMessage(Component message, Tooltip tooltip) {

projects/common/src/client/java/dan200/computercraft/client/gui/widgets/TerminalWidget.java

@@ -4,7 +4,6 @@
 
 package dan200.computercraft.client.gui.widgets;
 
-import com.mojang.blaze3d.vertex.PoseStack;
 import com.mojang.blaze3d.vertex.Tesselator;
 import dan200.computercraft.client.render.RenderTypes;
 import dan200.computercraft.client.render.text.FixedWidthFontRenderer;
@@ -12,6 +11,7 @@ import dan200.computercraft.core.terminal.Terminal;
 import dan200.computercraft.shared.computer.core.InputHandler;
 import net.minecraft.SharedConstants;
 import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.AbstractWidget;
 import net.minecraft.client.gui.narration.NarratedElementType;
 import net.minecraft.client.gui.narration.NarrationElementOutput;
@@ -274,11 +274,11 @@ public class TerminalWidget extends AbstractWidget {
     }
 
     @Override
-    public void renderWidget(PoseStack transform, int mouseX, int mouseY, float partialTicks) {
+    public void renderWidget(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
         if (!visible) return;
 
         var bufferSource = MultiBufferSource.immediate(Tesselator.getInstance().getBuilder());
-        var emitter = FixedWidthFontRenderer.toVertexConsumer(transform, bufferSource.getBuffer(RenderTypes.TERMINAL));
+        var emitter = FixedWidthFontRenderer.toVertexConsumer(graphics.pose(), bufferSource.getBuffer(RenderTypes.TERMINAL));
 
         FixedWidthFontRenderer.drawTerminal(
             emitter,

projects/common/src/client/java/dan200/computercraft/client/integration/emi/EMIComputerCraft.java

@@ -1,44 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.client.integration.emi;
-
-import dan200.computercraft.api.turtle.TurtleSide;
-import dan200.computercraft.shared.ModRegistry;
-import dan200.computercraft.shared.pocket.items.PocketComputerItem;
-import dan200.computercraft.shared.turtle.items.TurtleItem;
-import dev.emi.emi.api.EmiEntrypoint;
-import dev.emi.emi.api.EmiPlugin;
-import dev.emi.emi.api.EmiRegistry;
-import dev.emi.emi.api.stack.Comparison;
-import net.minecraft.world.item.ItemStack;
-
-import java.util.function.BiPredicate;
-
-@EmiEntrypoint
-public class EMIComputerCraft implements EmiPlugin {
-    @Override
-    public void register(EmiRegistry registry) {
-        registry.setDefaultComparison(ModRegistry.Items.TURTLE_NORMAL.get(), turtleComparison);
-        registry.setDefaultComparison(ModRegistry.Items.TURTLE_ADVANCED.get(), turtleComparison);
-
-        registry.setDefaultComparison(ModRegistry.Items.POCKET_COMPUTER_NORMAL.get(), pocketComparison);
-        registry.setDefaultComparison(ModRegistry.Items.POCKET_COMPUTER_ADVANCED.get(), pocketComparison);
-    }
-
-    private static final Comparison turtleComparison = compareStacks((left, right) ->
-        left.getItem() instanceof TurtleItem turtle
-            && turtle.getUpgrade(left, TurtleSide.LEFT) == turtle.getUpgrade(right, TurtleSide.LEFT)
-            && turtle.getUpgrade(left, TurtleSide.RIGHT) == turtle.getUpgrade(right, TurtleSide.RIGHT));
-
-    private static final Comparison pocketComparison = compareStacks((left, right) ->
-        left.getItem() instanceof PocketComputerItem && PocketComputerItem.getUpgrade(left) == PocketComputerItem.getUpgrade(right));
-
-    private static Comparison compareStacks(BiPredicate<ItemStack, ItemStack> test) {
-        return Comparison.of((left, right) -> {
-            ItemStack leftStack = left.getItemStack(), rightStack = right.getItemStack();
-            return leftStack.getItem() == rightStack.getItem() && test.test(leftStack, rightStack);
-        });
-    }
-}

projects/common/src/client/java/dan200/computercraft/client/model/turtle/ModelTransformer.java

@@ -1,103 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.client.model.turtle;
-
-import com.mojang.blaze3d.vertex.DefaultVertexFormat;
-import com.mojang.blaze3d.vertex.VertexFormat;
-import com.mojang.blaze3d.vertex.VertexFormatElement;
-import com.mojang.math.Transformation;
-import net.minecraft.client.renderer.block.model.BakedQuad;
-import net.minecraft.client.resources.model.BakedModel;
-import net.minecraft.core.Direction;
-import org.joml.Matrix4f;
-import org.joml.Vector4f;
-
-import javax.annotation.Nullable;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Applies a {@link Transformation} (or rather a {@link Matrix4f}) to a list of {@link BakedQuad}s.
- * <p>
- * This does a little bit of magic compared with other system (i.e. Forge's {@code QuadTransformers}), as it needs to
- * handle flipping models upside down.
- * <p>
- * This is typically used with a {@link BakedModel} subclass - see the loader-specific projects.
- */
-public class ModelTransformer {
-    private static final int[] INVERSE_ORDER = new int[]{ 3, 2, 1, 0 };
-
-    private static final int STRIDE = DefaultVertexFormat.BLOCK.getIntegerSize();
-    private static final int POS_OFFSET = findOffset(DefaultVertexFormat.BLOCK, DefaultVertexFormat.ELEMENT_POSITION);
-
-    protected final Matrix4f transformation;
-    protected final boolean invert;
-    private @Nullable TransformedQuads cache;
-
-    public ModelTransformer(Transformation transformation) {
-        this.transformation = transformation.getMatrix();
-        invert = transformation.getMatrix().determinant() < 0;
-    }
-
-    public List<BakedQuad> transform(List<BakedQuad> quads) {
-        if (quads.isEmpty()) return List.of();
-
-        // We do some basic caching here to avoid recomputing every frame. Most turtle models don't have culled faces,
-        // so it's not worth being smarter here.
-        var cache = this.cache;
-        if (cache != null && quads.equals(cache.original())) return cache.transformed();
-
-        List<BakedQuad> transformed = new ArrayList<>(quads.size());
-        for (var quad : quads) transformed.add(transformQuad(quad));
-        this.cache = new TransformedQuads(quads, transformed);
-        return transformed;
-    }
-
-    private BakedQuad transformQuad(BakedQuad quad) {
-        var inputData = quad.getVertices();
-        var outputData = new int[inputData.length];
-        for (var i = 0; i < 4; i++) {
-            var inStart = STRIDE * i;
-            // Reverse the order of the quads if we're inverting
-            var outStart = getVertexOffset(i, invert);
-            System.arraycopy(inputData, inStart, outputData, outStart, STRIDE);
-
-            // Apply the matrix to our position
-            var inPosStart = inStart + POS_OFFSET;
-            var outPosStart = outStart + POS_OFFSET;
-
-            var x = Float.intBitsToFloat(inputData[inPosStart]);
-            var y = Float.intBitsToFloat(inputData[inPosStart + 1]);
-            var z = Float.intBitsToFloat(inputData[inPosStart + 2]);
-
-            // Transform the position
-            var pos = new Vector4f(x, y, z, 1);
-            transformation.transformProject(pos);
-
-            outputData[outPosStart] = Float.floatToRawIntBits(pos.x());
-            outputData[outPosStart + 1] = Float.floatToRawIntBits(pos.y());
-            outputData[outPosStart + 2] = Float.floatToRawIntBits(pos.z());
-        }
-
-        var direction = Direction.rotate(transformation, quad.getDirection());
-        return new BakedQuad(outputData, quad.getTintIndex(), direction, quad.getSprite(), quad.isShade());
-    }
-
-    public static int getVertexOffset(int vertex, boolean invert) {
-        return (invert ? ModelTransformer.INVERSE_ORDER[vertex] : vertex) * ModelTransformer.STRIDE;
-    }
-
-    private record TransformedQuads(List<BakedQuad> original, List<BakedQuad> transformed) {
-    }
-
-    private static int findOffset(VertexFormat format, VertexFormatElement element) {
-        var offset = 0;
-        for (var other : format.getElements()) {
-            if (other == element) return offset / Integer.BYTES;
-            offset += element.getByteSize();
-        }
-        throw new IllegalArgumentException("Cannot find " + element + " in " + format);
-    }
-}

projects/common/src/client/java/dan200/computercraft/client/model/turtle/TurtleModelParts.java

@@ -4,13 +4,11 @@
 
 package dan200.computercraft.client.model.turtle;
 
-import com.google.common.cache.CacheBuilder;
 import com.mojang.blaze3d.vertex.PoseStack;
 import com.mojang.math.Transformation;
 import dan200.computercraft.api.client.TransformedModel;
 import dan200.computercraft.api.turtle.ITurtleUpgrade;
 import dan200.computercraft.api.turtle.TurtleSide;
-import dan200.computercraft.api.upgrades.UpgradeData;
 import dan200.computercraft.client.platform.ClientPlatformHelper;
 import dan200.computercraft.client.render.TurtleBlockEntityRenderer;
 import dan200.computercraft.client.turtle.TurtleUpgradeModellers;
@@ -23,17 +21,15 @@ import net.minecraft.world.item.ItemStack;
 
 import javax.annotation.Nullable;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.concurrent.TimeUnit;
 import java.util.function.Function;
 
 /**
  * Combines several individual models together to form a turtle.
- *
- * @param <T> The type of the resulting "baked model".
  */
-public final class TurtleModelParts<T> {
+public final class TurtleModelParts {
     private static final Transformation identity, flip;
 
     static {
@@ -46,67 +42,33 @@ public final class TurtleModelParts<T> {
         flip = new Transformation(stack.last().pose());
     }
 
-    private record Combination(
+    public record Combination(
         boolean colour,
-        @Nullable UpgradeData<ITurtleUpgrade> leftUpgrade,
-        @Nullable UpgradeData<ITurtleUpgrade> rightUpgrade,
+        @Nullable ITurtleUpgrade leftUpgrade,
+        @Nullable ITurtleUpgrade rightUpgrade,
         @Nullable ResourceLocation overlay,
         boolean christmas,
         boolean flip
     ) {
-        Combination copy() {
-            if (leftUpgrade == null && rightUpgrade == null) return this;
-            return new Combination(
-                colour, UpgradeData.copyOf(leftUpgrade), UpgradeData.copyOf(rightUpgrade),
-                overlay, christmas, flip
-            );
-        }
     }
 
     private final BakedModel familyModel;
     private final BakedModel colourModel;
     private final Function<TransformedModel, BakedModel> transformer;
-    private final Function<Combination, T> buildModel;
 
     /**
      * A cache of {@link TransformedModel} to the transformed {@link BakedModel}. This helps us pool the transformed
      * instances, reducing memory usage and hopefully ensuring their caches are hit more often!
      */
-    private final Map<TransformedModel, BakedModel> transformCache = CacheBuilder.newBuilder()
-        .concurrencyLevel(1)
-        .expireAfterAccess(30, TimeUnit.SECONDS)
-        .<TransformedModel, BakedModel>build()
-        .asMap();
+    private final Map<TransformedModel, BakedModel> transformCache = new HashMap<>();
 
-    /**
-     * A cache of {@link Combination}s to the combined model.
-     */
-    private final Map<Combination, T> modelCache = CacheBuilder.newBuilder()
-        .concurrencyLevel(1)
-        .expireAfterAccess(30, TimeUnit.SECONDS)
-        .<Combination, T>build()
-        .asMap();
-
-    public TurtleModelParts(BakedModel familyModel, BakedModel colourModel, ModelTransformer transformer, Function<List<BakedModel>, T> combineModel) {
+    public TurtleModelParts(BakedModel familyModel, BakedModel colourModel, ModelTransformer transformer) {
         this.familyModel = familyModel;
         this.colourModel = colourModel;
         this.transformer = x -> transformer.transform(x.getModel(), x.getMatrix());
-        buildModel = x -> combineModel.apply(buildModel(x));
     }
 
-    public T getModel(ItemStack stack) {
-        var combination = getCombination(stack);
-        var existing = modelCache.get(combination);
-        if (existing != null) return existing;
-
-        // Take a defensive copy of the upgrade data, and add it to the cache.
-        var newCombination = combination.copy();
-        var newModel = buildModel.apply(newCombination);
-        modelCache.put(newCombination, newModel);
-        return newModel;
-    }
-
-    private Combination getCombination(ItemStack stack) {
+    public Combination getCombination(ItemStack stack) {
         var christmas = Holiday.getCurrent() == Holiday.CHRISTMAS;
 
         if (!(stack.getItem() instanceof TurtleItem turtle)) {
@@ -114,8 +76,8 @@ public final class TurtleModelParts<T> {
         }
 
         var colour = turtle.getColour(stack);
-        var leftUpgrade = turtle.getUpgradeWithData(stack, TurtleSide.LEFT);
-        var rightUpgrade = turtle.getUpgradeWithData(stack, TurtleSide.RIGHT);
+        var leftUpgrade = turtle.getUpgrade(stack, TurtleSide.LEFT);
+        var rightUpgrade = turtle.getUpgrade(stack, TurtleSide.RIGHT);
         var overlay = turtle.getOverlay(stack);
         var label = turtle.getLabel(stack);
         var flip = label != null && (label.equals("Dinnerbone") || label.equals("Grumm"));
@@ -123,7 +85,7 @@ public final class TurtleModelParts<T> {
         return new Combination(colour != -1, leftUpgrade, rightUpgrade, overlay, christmas, flip);
     }
 
-    private List<BakedModel> buildModel(Combination combo) {
+    public List<BakedModel> buildModel(Combination combo) {
         var mc = Minecraft.getInstance();
         var modelManager = mc.getItemRenderer().getItemModelShaper().getModelManager();
 
@@ -135,20 +97,19 @@ public final class TurtleModelParts<T> {
         if (overlayModelLocation != null) {
             parts.add(transform(ClientPlatformHelper.get().getModel(modelManager, overlayModelLocation), transformation));
         }
-
-        addUpgrade(parts, transformation, TurtleSide.LEFT, combo.leftUpgrade());
-        addUpgrade(parts, transformation, TurtleSide.RIGHT, combo.rightUpgrade());
+        if (combo.leftUpgrade() != null) {
+            var model = TurtleUpgradeModellers.getModel(combo.leftUpgrade(), null, TurtleSide.LEFT);
+            parts.add(transform(model.getModel(), transformation.compose(model.getMatrix())));
+        }
+        if (combo.rightUpgrade() != null) {
+            var model = TurtleUpgradeModellers.getModel(combo.rightUpgrade(), null, TurtleSide.RIGHT);
+            parts.add(transform(model.getModel(), transformation.compose(model.getMatrix())));
+        }
 
         return parts;
     }
 
-    private void addUpgrade(List<BakedModel> parts, Transformation transformation, TurtleSide side, @Nullable UpgradeData<ITurtleUpgrade> upgrade) {
-        if (upgrade == null) return;
-        var model = TurtleUpgradeModellers.getModel(upgrade.upgrade(), upgrade.data(), side);
-        parts.add(transform(model.getModel(), transformation.compose(model.getMatrix())));
-    }
-
-    private BakedModel transform(BakedModel model, Transformation transformation) {
+    public BakedModel transform(BakedModel model, Transformation transformation) {
         if (transformation.equals(Transformation.identity())) return model;
         return transformCache.computeIfAbsent(new TransformedModel(model, transformation), transformer);
     }

projects/common/src/client/java/dan200/computercraft/client/platform/AbstractClientNetworkContext.java

@@ -52,7 +52,7 @@ public abstract class AbstractClientNetworkContext implements ClientNetworkConte
         var player = Minecraft.getInstance().player;
         if (player == null) return;
 
-        var te = player.level.getBlockEntity(pos);
+        var te = player.level().getBlockEntity(pos);
         if (!(te instanceof MonitorBlockEntity monitor)) return;
 
         monitor.read(terminal);

projects/common/src/client/java/dan200/computercraft/client/platform/ClientPlatformHelper.java

@@ -4,13 +4,8 @@
 
 package dan200.computercraft.client.platform;
 
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.shared.network.NetworkMessage;
 import dan200.computercraft.shared.network.server.ServerNetworkContext;
-import net.minecraft.client.renderer.MultiBufferSource;
-import net.minecraft.client.resources.model.BakedModel;
-
-import javax.annotation.Nullable;
 
 public interface ClientPlatformHelper extends dan200.computercraft.impl.client.ClientPlatformHelper {
     static ClientPlatformHelper get() {
@@ -23,16 +18,4 @@ public interface ClientPlatformHelper extends dan200.computercraft.impl.client.C
      * @param message The message to send.
      */
     void sendToServer(NetworkMessage<ServerNetworkContext> message);
-
-    /**
-     * Render a {@link BakedModel}, using any loader-specific hooks.
-     *
-     * @param transform     The current matrix transformation to apply.
-     * @param buffers       The current pool of render buffers.
-     * @param model         The model to draw.
-     * @param lightmapCoord The current packed lightmap coordinate.
-     * @param overlayLight  The current overlay light.
-     * @param tints         Block colour tints to apply to the model.
-     */
-    void renderBakedModel(PoseStack transform, MultiBufferSource buffers, BakedModel model, int lightmapCoord, int overlayLight, @Nullable int[] tints);
 }

projects/common/src/client/java/dan200/computercraft/client/render/ComputerBorderRenderer.java

@@ -18,9 +18,9 @@ import org.joml.Matrix4f;
  * {@linkplain PocketItemRenderer in-hand pocket computers}.
  */
 public class ComputerBorderRenderer {
-    public static final ResourceLocation BACKGROUND_NORMAL = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_normal.png");
-    public static final ResourceLocation BACKGROUND_ADVANCED = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_advanced.png");
-    public static final ResourceLocation BACKGROUND_COMMAND = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_command.png");
+    private static final ResourceLocation BACKGROUND_NORMAL = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_normal.png");
+    private static final ResourceLocation BACKGROUND_ADVANCED = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_advanced.png");
+    private static final ResourceLocation BACKGROUND_COMMAND = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_command.png");
     public static final ResourceLocation BACKGROUND_COLOUR = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_colour.png");
 
     /**

projects/common/src/client/java/dan200/computercraft/client/render/ModelRenderer.java

@@ -1,103 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.client.render;
-
-import com.mojang.blaze3d.vertex.PoseStack;
-import com.mojang.blaze3d.vertex.VertexConsumer;
-import dan200.computercraft.client.model.turtle.ModelTransformer;
-import dan200.computercraft.client.platform.ClientPlatformHelper;
-import net.minecraft.client.renderer.MultiBufferSource;
-import net.minecraft.client.renderer.block.model.BakedQuad;
-import net.minecraft.client.renderer.entity.ItemRenderer;
-import net.minecraft.client.resources.model.BakedModel;
-import net.minecraft.world.item.ItemStack;
-import org.joml.Vector4f;
-
-import javax.annotation.Nullable;
-import java.util.List;
-
-/**
- * Utilities for rendering {@link BakedModel}s and {@link BakedQuad}s.
- */
-public final class ModelRenderer {
-    private ModelRenderer() {
-    }
-
-    /**
-     * Render a list of {@linkplain BakedQuad quads} to a buffer.
-     * <p>
-     * This is not intended to be used directly, but instead by {@link ClientPlatformHelper#renderBakedModel(PoseStack, MultiBufferSource, BakedModel, int, int, int[])}. The
-     * implementation here is pretty similar to {@link ItemRenderer#renderQuadList(PoseStack, VertexConsumer, List, ItemStack, int, int)},
-     * but supports inverted quads (i.e. those with a negative scale).
-     *
-     * @param transform     The current matrix transformation to apply.
-     * @param buffer        The buffer to draw to.
-     * @param quads         The quads to draw.
-     * @param lightmapCoord The current packed lightmap coordinate.
-     * @param overlayLight  The current overlay light.
-     * @param tints         Block colour tints to apply to the model.
-     */
-    public static void renderQuads(PoseStack transform, VertexConsumer buffer, List<BakedQuad> quads, int lightmapCoord, int overlayLight, @Nullable int[] tints) {
-        var matrix = transform.last();
-        var inverted = matrix.pose().determinant() < 0;
-
-        for (var bakedquad : quads) {
-            var tint = -1;
-            if (tints != null && bakedquad.isTinted()) {
-                var idx = bakedquad.getTintIndex();
-                if (idx >= 0 && idx < tints.length) tint = tints[bakedquad.getTintIndex()];
-            }
-
-            var r = (float) (tint >> 16 & 255) / 255.0F;
-            var g = (float) (tint >> 8 & 255) / 255.0F;
-            var b = (float) (tint & 255) / 255.0F;
-            putBulkQuad(buffer, matrix, bakedquad, r, g, b, lightmapCoord, overlayLight, inverted);
-        }
-    }
-
-    /**
-     * A version of {@link VertexConsumer#putBulkData(PoseStack.Pose, BakedQuad, float, float, float, int, int)} which
-     * will reverse vertex order when the matrix is inverted.
-     *
-     * @param buffer        The buffer to draw to.
-     * @param pose          The current matrix stack.
-     * @param quad          The quad to draw.
-     * @param red           The red tint of this quad.
-     * @param green         The  green tint of this quad.
-     * @param blue          The blue tint of this quad.
-     * @param lightmapCoord The lightmap coordinate
-     * @param overlayLight  The overlay light.
-     * @param invert        Whether to reverse the order of this quad.
-     */
-    private static void putBulkQuad(VertexConsumer buffer, PoseStack.Pose pose, BakedQuad quad, float red, float green, float blue, int lightmapCoord, int overlayLight, boolean invert) {
-        var matrix = pose.pose();
-        // It's a little dubious to transform using this matrix rather than the normal matrix. This mirrors the logic in
-        // Direction.rotate (so not out of nowhere!), but is a little suspicious.
-        var dirNormal = quad.getDirection().getNormal();
-        var vector = new Vector4f();
-
-        matrix.transform(dirNormal.getX(), dirNormal.getY(), dirNormal.getZ(), 0.0f, vector).normalize();
-        float normalX = vector.x(), normalY = vector.y(), normalZ = vector.z();
-
-        var vertices = quad.getVertices();
-        for (var vertex = 0; vertex < 4; vertex++) {
-            var i = ModelTransformer.getVertexOffset(vertex, invert);
-
-            var x = Float.intBitsToFloat(vertices[i]);
-            var y = Float.intBitsToFloat(vertices[i + 1]);
-            var z = Float.intBitsToFloat(vertices[i + 2]);
-
-            matrix.transform(x, y, z, 1, vector);
-
-            var u = Float.intBitsToFloat(vertices[i + 4]);
-            var v = Float.intBitsToFloat(vertices[i + 5]);
-            buffer.vertex(
-                vector.x(), vector.y(), vector.z(),
-                red, green, blue, 1.0F, u, v, overlayLight, lightmapCoord,
-                normalX, normalY, normalZ
-            );
-        }
-    }
-}

projects/common/src/client/java/dan200/computercraft/client/render/TurtleBlockEntityRenderer.java

@@ -5,6 +5,7 @@
 package dan200.computercraft.client.render;
 
 import com.mojang.blaze3d.vertex.PoseStack;
+import com.mojang.blaze3d.vertex.VertexConsumer;
 import com.mojang.math.Axis;
 import com.mojang.math.Transformation;
 import dan200.computercraft.api.ComputerCraftAPI;
@@ -13,20 +14,25 @@ import dan200.computercraft.client.platform.ClientPlatformHelper;
 import dan200.computercraft.client.turtle.TurtleUpgradeModellers;
 import dan200.computercraft.shared.computer.core.ComputerFamily;
 import dan200.computercraft.shared.turtle.blocks.TurtleBlockEntity;
+import dan200.computercraft.shared.util.DirectionUtil;
 import dan200.computercraft.shared.util.Holiday;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.Font;
 import net.minecraft.client.renderer.MultiBufferSource;
+import net.minecraft.client.renderer.Sheets;
+import net.minecraft.client.renderer.block.model.BakedQuad;
 import net.minecraft.client.renderer.blockentity.BlockEntityRenderDispatcher;
 import net.minecraft.client.renderer.blockentity.BlockEntityRenderer;
 import net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider;
 import net.minecraft.client.resources.model.BakedModel;
 import net.minecraft.client.resources.model.ModelResourceLocation;
 import net.minecraft.resources.ResourceLocation;
+import net.minecraft.util.RandomSource;
 import net.minecraft.world.phys.BlockHitResult;
 import net.minecraft.world.phys.HitResult;
 
 import javax.annotation.Nullable;
+import java.util.List;
 
 public class TurtleBlockEntityRenderer implements BlockEntityRenderer<TurtleBlockEntity> {
     private static final ModelResourceLocation NORMAL_TURTLE_MODEL = new ModelResourceLocation(ComputerCraftAPI.MOD_ID, "turtle_normal", "inventory");
@@ -34,6 +40,8 @@ public class TurtleBlockEntityRenderer implements BlockEntityRenderer<TurtleBloc
     private static final ResourceLocation COLOUR_TURTLE_MODEL = new ResourceLocation(ComputerCraftAPI.MOD_ID, "block/turtle_colour");
     private static final ResourceLocation ELF_OVERLAY_MODEL = new ResourceLocation(ComputerCraftAPI.MOD_ID, "block/turtle_elf_overlay");
 
+    private final RandomSource random = RandomSource.create(0);
+
     private final BlockEntityRenderDispatcher renderer;
     private final Font font;
 
@@ -99,22 +107,23 @@ public class TurtleBlockEntityRenderer implements BlockEntityRenderer<TurtleBloc
         var family = turtle.getFamily();
         var overlay = turtle.getOverlay();
 
-        renderModel(transform, buffers, lightmapCoord, overlayLight, getTurtleModel(family, colour != -1), colour == -1 ? null : new int[]{ colour });
+        var buffer = buffers.getBuffer(Sheets.translucentCullBlockSheet());
+        renderModel(transform, buffer, lightmapCoord, overlayLight, getTurtleModel(family, colour != -1), colour == -1 ? null : new int[]{ colour });
 
         // Render the overlay
         var overlayModel = getTurtleOverlayModel(overlay, Holiday.getCurrent() == Holiday.CHRISTMAS);
         if (overlayModel != null) {
-            renderModel(transform, buffers, lightmapCoord, overlayLight, overlayModel, null);
+            renderModel(transform, buffer, lightmapCoord, overlayLight, overlayModel, null);
         }
 
         // Render the upgrades
-        renderUpgrade(transform, buffers, lightmapCoord, overlayLight, turtle, TurtleSide.LEFT, partialTicks);
-        renderUpgrade(transform, buffers, lightmapCoord, overlayLight, turtle, TurtleSide.RIGHT, partialTicks);
+        renderUpgrade(transform, buffer, lightmapCoord, overlayLight, turtle, TurtleSide.LEFT, partialTicks);
+        renderUpgrade(transform, buffer, lightmapCoord, overlayLight, turtle, TurtleSide.RIGHT, partialTicks);
 
         transform.popPose();
     }
 
-    private void renderUpgrade(PoseStack transform, MultiBufferSource buffers, int lightmapCoord, int overlayLight, TurtleBlockEntity turtle, TurtleSide side, float f) {
+    private void renderUpgrade(PoseStack transform, VertexConsumer renderer, int lightmapCoord, int overlayLight, TurtleBlockEntity turtle, TurtleSide side, float f) {
         var upgrade = turtle.getUpgrade(side);
         if (upgrade == null) return;
         transform.pushPose();
@@ -125,33 +134,46 @@ public class TurtleBlockEntityRenderer implements BlockEntityRenderer<TurtleBloc
         transform.translate(0.0f, -0.5f, -0.5f);
 
         var model = TurtleUpgradeModellers.getModel(upgrade, turtle.getAccess(), side);
-        applyTransformation(transform, model.getMatrix());
-        renderModel(transform, buffers, lightmapCoord, overlayLight, model.getModel(), null);
+        pushPoseFromTransformation(transform, model.getMatrix());
+        renderModel(transform, renderer, lightmapCoord, overlayLight, model.getModel(), null);
+        transform.popPose();
 
         transform.popPose();
     }
 
-    private void renderModel(PoseStack transform, MultiBufferSource buffers, int lightmapCoord, int overlayLight, ResourceLocation modelLocation, @Nullable int[] tints) {
+    private void renderModel(PoseStack transform, VertexConsumer renderer, int lightmapCoord, int overlayLight, ResourceLocation modelLocation, @Nullable int[] tints) {
         var modelManager = Minecraft.getInstance().getItemRenderer().getItemModelShaper().getModelManager();
-        renderModel(transform, buffers, lightmapCoord, overlayLight, ClientPlatformHelper.get().getModel(modelManager, modelLocation), tints);
+        renderModel(transform, renderer, lightmapCoord, overlayLight, ClientPlatformHelper.get().getModel(modelManager, modelLocation), tints);
     }
 
-    /**
-     * Render a block model.
-     *
-     * @param transform     The current matrix stack.
-     * @param renderer      The buffer to write to.
-     * @param lightmapCoord The current lightmap coordinate.
-     * @param overlayLight  The overlay light.
-     * @param model         The model to render.
-     * @param tints         Tints for the quads, as an array of RGB values.
-     * @see net.minecraft.client.renderer.block.ModelBlockRenderer#renderModel
-     */
-    private void renderModel(PoseStack transform, MultiBufferSource renderer, int lightmapCoord, int overlayLight, BakedModel model, @Nullable int[] tints) {
-        ClientPlatformHelper.get().renderBakedModel(transform, renderer, model, lightmapCoord, overlayLight, tints);
+    private void renderModel(PoseStack transform, VertexConsumer renderer, int lightmapCoord, int overlayLight, BakedModel model, @Nullable int[] tints) {
+        random.setSeed(0);
+        renderQuads(transform, renderer, lightmapCoord, overlayLight, model.getQuads(null, null, random), tints);
+        for (var facing : DirectionUtil.FACINGS) {
+            renderQuads(transform, renderer, lightmapCoord, overlayLight, model.getQuads(null, facing, random), tints);
+        }
     }
 
-    private static void applyTransformation(PoseStack stack, Transformation transformation) {
+    private static void renderQuads(PoseStack transform, VertexConsumer buffer, int lightmapCoord, int overlayLight, List<BakedQuad> quads, @Nullable int[] tints) {
+        var matrix = transform.last();
+
+        for (var bakedquad : quads) {
+            var tint = -1;
+            if (tints != null && bakedquad.isTinted()) {
+                var idx = bakedquad.getTintIndex();
+                if (idx >= 0 && idx < tints.length) tint = tints[bakedquad.getTintIndex()];
+            }
+
+            var r = (float) (tint >> 16 & 255) / 255.0F;
+            var g = (float) (tint >> 8 & 255) / 255.0F;
+            var b = (float) (tint & 255) / 255.0F;
+            buffer.putBulkData(matrix, bakedquad, r, g, b, lightmapCoord, overlayLight);
+        }
+    }
+
+    private static void pushPoseFromTransformation(PoseStack stack, Transformation transformation) {
+        stack.pushPose();
+
         var trans = transformation.getTranslation();
         stack.translate(trans.x(), trans.y(), trans.z());
 

projects/common/src/client/java/dan200/computercraft/client/render/monitor/MonitorBlockEntityRenderer.java

@@ -7,10 +7,7 @@ package dan200.computercraft.client.render.monitor;
 import com.mojang.blaze3d.platform.GlStateManager;
 import com.mojang.blaze3d.platform.MemoryTracker;
 import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.PoseStack;
-import com.mojang.blaze3d.vertex.Tesselator;
-import com.mojang.blaze3d.vertex.VertexBuffer;
-import com.mojang.blaze3d.vertex.VertexConsumer;
+import com.mojang.blaze3d.vertex.*;
 import com.mojang.math.Axis;
 import dan200.computercraft.client.FrameInfo;
 import dan200.computercraft.client.integration.ShaderMod;
@@ -170,7 +167,7 @@ public class MonitorBlockEntityRenderer implements BlockEntityRenderer<MonitorBl
                 tboVertex(buffer, matrix, -xMargin, pixelHeight + yMargin);
                 tboVertex(buffer, matrix, pixelWidth + xMargin, -yMargin);
                 tboVertex(buffer, matrix, pixelWidth + xMargin, pixelHeight + yMargin);
-                RenderTypes.MONITOR_TBO.end(buffer, 0, 0, 0);
+                RenderTypes.MONITOR_TBO.end(buffer, VertexSorting.DISTANCE_TO_ORIGIN);
             }
             case VBO -> {
                 var backgroundBuffer = assertNonNull(renderState.backgroundBuffer);

projects/common/src/client/java/dan200/computercraft/client/render/vbo/DirectVertexBuffer.java

@@ -25,6 +25,7 @@ public class DirectVertexBuffer extends VertexBuffer {
     private int actualIndexCount;
 
     public DirectVertexBuffer() {
+        super(Usage.STATIC);
         if (DirectBuffers.HAS_DSA) {
             RenderSystem.glDeleteBuffers(vertexBufferId);
             if (DirectBuffers.ON_LINUX) BufferUploader.reset(); // See comment on DirectBuffers.deleteBuffer.

projects/common/src/client/java/dan200/computercraft/client/turtle/TurtleModemModeller.java

@@ -13,9 +13,6 @@ import dan200.computercraft.shared.turtle.upgrades.TurtleModem;
 import net.minecraft.resources.ResourceLocation;
 import org.jetbrains.annotations.Nullable;
 
-import java.util.Collection;
-import java.util.List;
-
 /**
  * A {@link TurtleUpgradeModeller} for modems, providing different models depending on if the modem is on/off.
  */
@@ -51,9 +48,4 @@ public class TurtleModemModeller implements TurtleUpgradeModeller<TurtleModem> {
             ? TransformedModel.of(active ? leftOnModel : leftOffModel)
             : TransformedModel.of(active ? rightOnModel : rightOffModel);
     }
-
-    @Override
-    public Collection<ResourceLocation> getDependencies() {
-        return List.of(leftOffModel, rightOffModel, leftOnModel, rightOnModel);
-    }
 }

projects/common/src/client/java/dan200/computercraft/client/turtle/TurtleUpgradeModellers.java

@@ -14,13 +14,11 @@ import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
 import dan200.computercraft.impl.TurtleUpgrades;
 import dan200.computercraft.impl.UpgradeManager;
 import net.minecraft.client.Minecraft;
-import net.minecraft.nbt.CompoundTag;
-import net.minecraft.resources.ResourceLocation;
 
+import javax.annotation.Nullable;
 import java.util.Map;
 import java.util.WeakHashMap;
 import java.util.concurrent.ConcurrentHashMap;
-import java.util.stream.Stream;
 
 /**
  * A registry of {@link TurtleUpgradeModeller}s.
@@ -54,18 +52,12 @@ public final class TurtleUpgradeModellers {
         }
     }
 
-    public static TransformedModel getModel(ITurtleUpgrade upgrade, ITurtleAccess access, TurtleSide side) {
+    public static TransformedModel getModel(ITurtleUpgrade upgrade, @Nullable ITurtleAccess access, TurtleSide side) {
         @SuppressWarnings("unchecked")
         var modeller = (TurtleUpgradeModeller<ITurtleUpgrade>) modelCache.computeIfAbsent(upgrade, TurtleUpgradeModellers::getModeller);
         return modeller.getModel(upgrade, access, side);
     }
 
-    public static TransformedModel getModel(ITurtleUpgrade upgrade, CompoundTag data, TurtleSide side) {
-        @SuppressWarnings("unchecked")
-        var modeller = (TurtleUpgradeModeller<ITurtleUpgrade>) modelCache.computeIfAbsent(upgrade, TurtleUpgradeModellers::getModeller);
-        return modeller.getModel(upgrade, data, side);
-    }
-
     private static TurtleUpgradeModeller<?> getModeller(ITurtleUpgrade upgradeA) {
         var wrapper = TurtleUpgrades.instance().getWrapper(upgradeA);
         if (wrapper == null) return NULL_TURTLE_MODELLER;
@@ -73,8 +65,4 @@ public final class TurtleUpgradeModellers {
         var modeller = turtleModels.get(wrapper.serialiser());
         return modeller == null ? NULL_TURTLE_MODELLER : modeller;
     }
-
-    public static Stream<ResourceLocation> getDependencies() {
-        return turtleModels.values().stream().flatMap(x -> x.getDependencies().stream());
-    }
 }

projects/common/src/client/java/dan200/computercraft/data/client/ClientDataProviders.java

@@ -1,34 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.data.client;
-
-import dan200.computercraft.data.DataProviders;
-import dan200.computercraft.shared.turtle.inventory.UpgradeSlot;
-import net.minecraft.client.renderer.texture.atlas.SpriteSources;
-import net.minecraft.client.renderer.texture.atlas.sources.SingleFile;
-import net.minecraft.resources.ResourceLocation;
-import net.minecraft.server.packs.PackType;
-
-import java.util.List;
-import java.util.Optional;
-
-/**
- * A version of {@link DataProviders} which relies on client-side classes.
- * <p>
- * This is called from {@link DataProviders#add(DataProviders.GeneratorSink)}.
- */
-public final class ClientDataProviders {
-    private ClientDataProviders() {
-    }
-
-    public static void add(DataProviders.GeneratorSink generator) {
-        generator.addFromCodec("Block atlases", PackType.CLIENT_RESOURCES, "atlases", SpriteSources.FILE_CODEC, out -> {
-            out.accept(new ResourceLocation("blocks"), List.of(
-                new SingleFile(UpgradeSlot.LEFT_UPGRADE, Optional.empty()),
-                new SingleFile(UpgradeSlot.RIGHT_UPGRADE, Optional.empty())
-            ));
-        });
-    }
-}

projects/common/src/main/java/dan200/computercraft/data/BlockModelProvider.java

@@ -37,14 +37,6 @@ import static net.minecraft.data.models.model.ModelLocationUtils.getModelLocatio
 import static net.minecraft.data.models.model.TextureMapping.getBlockTexture;
 
 class BlockModelProvider {
-    private static final TextureSlot CURSOR = TextureSlot.create("cursor");
-
-    private static final ModelTemplate COMPUTER_ON = new ModelTemplate(
-        Optional.of(new ResourceLocation(ComputerCraftAPI.MOD_ID, "block/computer_on")),
-        Optional.empty(),
-        TextureSlot.FRONT, TextureSlot.SIDE, TextureSlot.TOP, CURSOR
-    );
-
     private static final ModelTemplate MONITOR_BASE = new ModelTemplate(
         Optional.of(new ResourceLocation(ComputerCraftAPI.MOD_ID, "block/monitor_base")),
         Optional.empty(),
@@ -150,18 +142,11 @@ class BlockModelProvider {
     private static void registerComputer(BlockModelGenerators generators, ComputerBlock<?> block) {
         generators.blockStateOutput.accept(MultiVariantGenerator.multiVariant(block)
             .with(createHorizontalFacingDispatch())
-            .with(createModelDispatch(ComputerBlock.STATE, state -> switch (state) {
-                case OFF -> ModelTemplates.CUBE_ORIENTABLE.createWithSuffix(
-                    block, "_" + state.getSerializedName(),
-                    TextureMapping.orientableCube(block),
-                    generators.modelOutput
-                );
-                case ON, BLINKING -> COMPUTER_ON.createWithSuffix(
-                    block, "_" + state.getSerializedName(),
-                    TextureMapping.orientableCube(block).put(CURSOR, new ResourceLocation(ComputerCraftAPI.MOD_ID, "block/computer" + state.getTexture())),
-                    generators.modelOutput
-                );
-            }))
+            .with(createModelDispatch(ComputerBlock.STATE, state -> ModelTemplates.CUBE_ORIENTABLE.createWithSuffix(
+                block, "_" + state.getSerializedName(),
+                TextureMapping.orientableCube(block).put(TextureSlot.FRONT, getBlockTexture(block, "_front" + state.getTexture())),
+                generators.modelOutput
+            )))
         );
         generators.delegateItemModel(block, getModelLocation(block, "_blinking"));
     }

projects/common/src/main/java/dan200/computercraft/data/DataProviders.java

@@ -4,20 +4,16 @@
 
 package dan200.computercraft.data;
 
-import com.mojang.serialization.Codec;
 import net.minecraft.data.DataProvider;
 import net.minecraft.data.PackOutput;
 import net.minecraft.data.loot.LootTableProvider.SubProviderEntry;
 import net.minecraft.data.models.BlockModelGenerators;
 import net.minecraft.data.models.ItemModelGenerators;
 import net.minecraft.data.tags.TagsProvider;
-import net.minecraft.resources.ResourceLocation;
-import net.minecraft.server.packs.PackType;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.level.block.Block;
 
 import java.util.List;
-import java.util.function.BiConsumer;
 import java.util.function.Consumer;
 
 /**
@@ -41,22 +37,11 @@ public final class DataProviders {
         generator.models(BlockModelProvider::addBlockModels, ItemModelProvider::addItemModels);
 
         generator.add(out -> new LanguageProvider(out, turtleUpgrades, pocketUpgrades));
-
-        // Unfortunately we rely on some client-side classes in this code. We just load in the client side data provider
-        // and invoke that.
-        try {
-            Class.forName("dan200.computercraft.data.client.ClientDataProviders")
-                .getMethod("add", GeneratorSink.class).invoke(null, generator);
-        } catch (ReflectiveOperationException e) {
-            throw new RuntimeException(e);
-        }
     }
 
-    public interface GeneratorSink {
+    interface GeneratorSink {
         <T extends DataProvider> T add(DataProvider.Factory<T> factory);
 
-        <T> void addFromCodec(String name, PackType type, String directory, Codec<T> codec, Consumer<BiConsumer<ResourceLocation, T>> output);
-
         void lootTable(List<SubProviderEntry> tables);
 
         TagsProvider<Block> blockTags(Consumer<TagProvider.TagConsumer<Block>> tags);

projects/common/src/main/java/dan200/computercraft/data/LanguageProvider.java

@@ -6,7 +6,6 @@ package dan200.computercraft.data;
 
 import com.google.gson.JsonObject;
 import dan200.computercraft.api.ComputerCraftAPI;
-import dan200.computercraft.api.ComputerCraftTags;
 import dan200.computercraft.api.pocket.PocketUpgradeDataProvider;
 import dan200.computercraft.api.turtle.TurtleUpgradeDataProvider;
 import dan200.computercraft.api.upgrades.UpgradeBase;
@@ -21,7 +20,6 @@ import dan200.computercraft.shared.platform.RegistryWrappers;
 import net.minecraft.data.CachedOutput;
 import net.minecraft.data.DataProvider;
 import net.minecraft.data.PackOutput;
-import net.minecraft.tags.TagKey;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.level.block.Block;
 
@@ -99,12 +97,6 @@ public final class LanguageProvider implements DataProvider {
         add(ModRegistry.Items.POCKET_COMPUTER_ADVANCED.get(), "Advanced Pocket Computer");
         add(ModRegistry.Items.POCKET_COMPUTER_ADVANCED.get().getDescriptionId() + ".upgraded", "Advanced %s Pocket Computer");
 
-        // Tags (for EMI)
-        add(ComputerCraftTags.Items.COMPUTER, "Computers");
-        add(ComputerCraftTags.Items.TURTLE, "Turtles");
-        add(ComputerCraftTags.Items.WIRED_MODEM, "Wired modems");
-        add(ComputerCraftTags.Items.MONITOR, "Monitors");
-
         // Turtle/pocket upgrades
         add("upgrade.minecraft.diamond_sword.adjective", "Melee");
         add("upgrade.minecraft.diamond_shovel.adjective", "Digging");
@@ -158,6 +150,9 @@ public final class LanguageProvider implements DataProvider {
         add("commands.computercraft.track.dump.desc", "Dump the latest results of computer tracking.");
         add("commands.computercraft.track.dump.no_timings", "No timings available");
         add("commands.computercraft.track.dump.computer", "Computer");
+        add("commands.computercraft.reload.synopsis", "Reload the ComputerCraft config file");
+        add("commands.computercraft.reload.desc", "Reload the ComputerCraft config file");
+        add("commands.computercraft.reload.done", "Reloaded config");
         add("commands.computercraft.queue.synopsis", "Send a computer_command event to a command computer");
         add("commands.computercraft.queue.desc", "Send a computer_command event to a command computer, passing through the additional arguments. This is mostly designed for map makers, acting as a more computer-friendly version of /trigger. Any player can run the command, which would most likely be done through a text component's click event.");
 
@@ -219,7 +214,6 @@ public final class LanguageProvider implements DataProvider {
         addConfigEntry(ConfigSpec.defaultComputerSettings, "Default Computer settings");
         addConfigEntry(ConfigSpec.logComputerErrors, "Log computer errors");
         addConfigEntry(ConfigSpec.commandRequireCreative, "Command computers require creative");
-        addConfigEntry(ConfigSpec.disabledGenericMethods, "Disabled generic methods");
 
         addConfigGroup(ConfigSpec.serverSpec, "execution", "Execution");
         addConfigEntry(ConfigSpec.computerThreads, "Computer threads");
@@ -283,8 +277,8 @@ public final class LanguageProvider implements DataProvider {
             turtleUpgrades.getGeneratedUpgrades().stream().map(UpgradeBase::getUnlocalisedAdjective),
             pocketUpgrades.getGeneratedUpgrades().stream().map(UpgradeBase::getUnlocalisedAdjective),
             Metric.metrics().values().stream().map(x -> AggregatedMetric.TRANSLATION_PREFIX + x.name() + ".name"),
-            ConfigSpec.serverSpec.entries().map(ConfigFile.Entry::translationKey),
-            ConfigSpec.clientSpec.entries().map(ConfigFile.Entry::translationKey)
+            getConfigEntries(ConfigSpec.serverSpec).map(ConfigFile.Entry::translationKey),
+            getConfigEntries(ConfigSpec.clientSpec).map(ConfigFile.Entry::translationKey)
         ).flatMap(x -> x);
     }
 
@@ -304,10 +298,6 @@ public final class LanguageProvider implements DataProvider {
         add(AggregatedMetric.TRANSLATION_PREFIX + metric.name() + ".name", text);
     }
 
-    private void add(TagKey<Item> tag, String text) {
-        add("tag.item." + tag.location().getNamespace() + "." + tag.location().getPath(), text);
-    }
-
     private void addConfigGroup(ConfigFile spec, String path, String text) {
         var entry = spec.getEntry(path);
         if (!(entry instanceof ConfigFile.Group)) throw new IllegalArgumentException("Cannot find group " + path);
@@ -318,4 +308,16 @@ public final class LanguageProvider implements DataProvider {
         add(value.translationKey(), text);
         add(value.translationKey() + ".tooltip", value.comment());
     }
+
+    private static Stream<ConfigFile.Entry> getConfigEntries(ConfigFile spec) {
+        return spec.entries().flatMap(LanguageProvider::getConfigEntries);
+    }
+
+    private static Stream<ConfigFile.Entry> getConfigEntries(ConfigFile.Entry entry) {
+        if (entry instanceof ConfigFile.Value<?>) return Stream.of(entry);
+        if (entry instanceof ConfigFile.Group group) {
+            return Stream.concat(Stream.of(entry), group.children().flatMap(LanguageProvider::getConfigEntries));
+        }
+        throw new IllegalStateException("Invalid config entry " + entry);
+    }
 }

projects/common/src/main/java/dan200/computercraft/data/LootTableProvider.java

@@ -23,7 +23,7 @@ import net.minecraft.world.level.storage.loot.entries.LootItem;
 import net.minecraft.world.level.storage.loot.entries.LootPoolEntryContainer;
 import net.minecraft.world.level.storage.loot.functions.CopyNameFunction;
 import net.minecraft.world.level.storage.loot.parameters.LootContextParamSets;
-import net.minecraft.world.level.storage.loot.predicates.AlternativeLootItemCondition;
+import net.minecraft.world.level.storage.loot.predicates.AnyOfCondition;
 import net.minecraft.world.level.storage.loot.predicates.ExplosionCondition;
 import net.minecraft.world.level.storage.loot.predicates.LootItemBlockStatePropertyCondition;
 import net.minecraft.world.level.storage.loot.predicates.LootItemCondition;
@@ -79,7 +79,7 @@ class LootTableProvider {
     }
 
     private static void registerGeneric(BiConsumer<ResourceLocation, LootTable.Builder> add) {
-        add.accept(CommonHooks.LOOT_TREASURE_DISK, LootTable.lootTable());
+        add.accept(CommonHooks.TREASURE_DISK_LOOT, LootTable.lootTable());
     }
 
     private static void selfDrop(BiConsumer<ResourceLocation, LootTable.Builder> add, Supplier<? extends Block> wrapper) {
@@ -98,7 +98,7 @@ class LootTableProvider {
         blockDrop(
             add, block,
             DynamicLoot.dynamicEntry(new ResourceLocation(ComputerCraftAPI.MOD_ID, "computer")),
-            AlternativeLootItemCondition.alternative(
+            AnyOfCondition.anyOf(
                 BlockNamedEntityLootCondition.BUILDER,
                 HasComputerIdLootCondition.BUILDER,
                 PlayerCreativeLootCondition.BUILDER.invert()

projects/common/src/main/java/dan200/computercraft/data/RecipeProvider.java

@@ -8,7 +8,6 @@ import com.google.gson.JsonObject;
 import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.pocket.PocketUpgradeDataProvider;
 import dan200.computercraft.api.turtle.TurtleUpgradeDataProvider;
-import dan200.computercraft.api.upgrades.UpgradeData;
 import dan200.computercraft.core.util.Colour;
 import dan200.computercraft.shared.ModRegistry;
 import dan200.computercraft.shared.common.IColouredItem;
@@ -111,7 +110,7 @@ class RecipeProvider extends net.minecraft.data.recipes.RecipeProvider {
             var nameId = turtleItem.getFamily().name().toLowerCase(Locale.ROOT);
 
             for (var upgrade : turtleUpgrades.getGeneratedUpgrades()) {
-                var result = turtleItem.create(-1, null, -1, null, UpgradeData.ofDefault(upgrade), -1, null);
+                var result = turtleItem.create(-1, null, -1, null, upgrade, -1, null);
                 ShapedRecipeBuilder
                     .shaped(RecipeCategory.REDSTONE, result.getItem())
                     .group(String.format("%s:turtle_%s", ComputerCraftAPI.MOD_ID, nameId))
@@ -147,7 +146,7 @@ class RecipeProvider extends net.minecraft.data.recipes.RecipeProvider {
             var nameId = pocket.getFamily().name().toLowerCase(Locale.ROOT);
 
             for (var upgrade : pocketUpgrades.getGeneratedUpgrades()) {
-                var result = pocket.create(-1, null, -1, UpgradeData.ofDefault(upgrade));
+                var result = pocket.create(-1, null, -1, upgrade);
                 ShapedRecipeBuilder
                     .shaped(RecipeCategory.REDSTONE, result.getItem())
                     .group(String.format("%s:pocket_%s", ComputerCraftAPI.MOD_ID, nameId))

projects/common/src/main/java/dan200/computercraft/impl/AbstractComputerCraftAPI.java

@@ -19,6 +19,8 @@ import dan200.computercraft.api.pocket.PocketUpgradeSerialiser;
 import dan200.computercraft.api.redstone.BundledRedstoneProvider;
 import dan200.computercraft.api.turtle.TurtleRefuelHandler;
 import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
+import dan200.computercraft.core.apis.ApiFactories;
+import dan200.computercraft.core.asm.GenericMethod;
 import dan200.computercraft.core.filesystem.WritableFileMount;
 import dan200.computercraft.impl.detail.DetailRegistryImpl;
 import dan200.computercraft.impl.network.wired.WiredNodeImpl;
@@ -77,7 +79,7 @@ public abstract class AbstractComputerCraftAPI implements ComputerCraftAPIServic
 
     @Override
     public final void registerGenericSource(GenericSource source) {
-        GenericSources.register(source);
+        GenericMethod.register(source);
     }
 
     @Override

projects/common/src/main/java/dan200/computercraft/impl/GenericSources.java

@@ -1,41 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.impl;
-
-import dan200.computercraft.api.lua.GenericSource;
-import dan200.computercraft.core.asm.GenericMethod;
-import dan200.computercraft.shared.config.ConfigSpec;
-
-import java.util.Collection;
-import java.util.LinkedHashSet;
-import java.util.Objects;
-import java.util.Set;
-
-/**
- * The global registry for {@link GenericSource}s.
- *
- * @see dan200.computercraft.core.ComputerContext.Builder#genericMethods(Collection)
- * @see dan200.computercraft.api.ComputerCraftAPI#registerGenericSource(GenericSource)
- */
-public final class GenericSources {
-    private GenericSources() {
-    }
-
-    private static final Collection<GenericSource> sources = new LinkedHashSet<>();
-
-    static synchronized void register(GenericSource source) {
-        Objects.requireNonNull(source, "provider cannot be null");
-        sources.add(source);
-    }
-
-    public static Collection<GenericMethod> getAllMethods() {
-        var disabledMethods = Set.copyOf(ConfigSpec.disabledGenericMethods.get());
-        return sources.stream()
-            .filter(x -> !disabledMethods.contains(x.id()))
-            .flatMap(GenericMethod::getMethods)
-            .filter(x -> !disabledMethods.contains(x.id()))
-            .toList();
-    }
-}

projects/common/src/main/java/dan200/computercraft/impl/UpgradeManager.java

@@ -7,7 +7,6 @@ package dan200.computercraft.impl;
 import com.google.gson.*;
 import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.upgrades.UpgradeBase;
-import dan200.computercraft.api.upgrades.UpgradeData;
 import dan200.computercraft.api.upgrades.UpgradeSerialiser;
 import dan200.computercraft.shared.platform.PlatformHelper;
 import net.minecraft.core.Registry;
@@ -75,13 +74,13 @@ public class UpgradeManager<R extends UpgradeSerialiser<? extends T>, T extends
     }
 
     @Nullable
-    public UpgradeData<T> get(ItemStack stack) {
+    public T get(ItemStack stack) {
         if (stack.isEmpty()) return null;
 
         for (var wrapper : current.values()) {
             var craftingStack = wrapper.upgrade().getCraftingItem();
             if (!craftingStack.isEmpty() && craftingStack.getItem() == stack.getItem() && wrapper.upgrade().isItemSuitable(stack)) {
-                return UpgradeData.of(wrapper.upgrade, wrapper.upgrade.getUpgradeData(stack));
+                return wrapper.upgrade();
             }
         }
 

projects/common/src/main/java/dan200/computercraft/shared/CommonHooks.java

@@ -23,13 +23,7 @@ import net.minecraft.world.entity.Entity;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.chunk.LevelChunk;
 import net.minecraft.world.level.storage.loot.BuiltInLootTables;
-import net.minecraft.world.level.storage.loot.LootPool;
-import net.minecraft.world.level.storage.loot.entries.LootTableReference;
-import net.minecraft.world.level.storage.loot.providers.number.ConstantValue;
 
-import javax.annotation.Nullable;
-import java.util.Arrays;
-import java.util.HashSet;
 import java.util.Set;
 import java.util.function.BiConsumer;
 
@@ -75,9 +69,9 @@ public final class CommonHooks {
         MonitorWatcher.onWatch(chunk, player);
     }
 
-    public static final ResourceLocation LOOT_TREASURE_DISK = new ResourceLocation(ComputerCraftAPI.MOD_ID, "treasure_disk");
+    public static final ResourceLocation TREASURE_DISK_LOOT = new ResourceLocation(ComputerCraftAPI.MOD_ID, "treasure_disk");
 
-    private static final Set<ResourceLocation> TABLES = new HashSet<>(Arrays.asList(
+    public static final Set<ResourceLocation> TREASURE_DISK_LOOT_TABLES = Set.of(
         BuiltInLootTables.SIMPLE_DUNGEON,
         BuiltInLootTables.ABANDONED_MINESHAFT,
         BuiltInLootTables.STRONGHOLD_CORRIDOR,
@@ -88,16 +82,7 @@ public final class CommonHooks {
         BuiltInLootTables.IGLOO_CHEST,
         BuiltInLootTables.WOODLAND_MANSION,
         BuiltInLootTables.VILLAGE_CARTOGRAPHER
-    ));
-
-
-    public static @Nullable LootPool.Builder getExtraLootPool(ResourceLocation lootTable) {
-        if (!lootTable.getNamespace().equals("minecraft") || !TABLES.contains(lootTable)) return null;
-
-        return LootPool.lootPool()
-            .add(LootTableReference.lootTableReference(LOOT_TREASURE_DISK))
-            .setRolls(ConstantValue.exactly(1));
-    }
+    );
 
     public static void onDatapackReload(BiConsumer<String, PreparableReloadListener> addReload) {
         addReload.accept("mounts", ResourceMount.RELOAD_LISTENER);

projects/common/src/main/java/dan200/computercraft/shared/ModRegistry.java

@@ -11,7 +11,6 @@ import dan200.computercraft.api.detail.VanillaDetailRegistries;
 import dan200.computercraft.api.media.IMedia;
 import dan200.computercraft.api.pocket.PocketUpgradeSerialiser;
 import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
-import dan200.computercraft.api.upgrades.UpgradeData;
 import dan200.computercraft.core.util.Colour;
 import dan200.computercraft.impl.PocketUpgrades;
 import dan200.computercraft.impl.TurtleUpgrades;
@@ -94,7 +93,7 @@ import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.entity.BlockEntityType;
 import net.minecraft.world.level.block.state.BlockBehaviour;
 import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.material.Material;
+import net.minecraft.world.level.material.MapColor;
 import net.minecraft.world.level.storage.loot.predicates.LootItemConditionType;
 
 import java.util.function.BiFunction;
@@ -113,7 +112,7 @@ public final class ModRegistry {
         static final RegistrationHelper<Block> REGISTRY = PlatformHelper.get().createRegistrationHelper(Registries.BLOCK);
 
         private static BlockBehaviour.Properties properties() {
-            return BlockBehaviour.Properties.of(Material.STONE).strength(2);
+            return BlockBehaviour.Properties.of().strength(2);
         }
 
         private static BlockBehaviour.Properties computerProperties() {
@@ -123,17 +122,17 @@ public final class ModRegistry {
         }
 
         private static BlockBehaviour.Properties turtleProperties() {
-            return BlockBehaviour.Properties.of(Material.STONE).strength(2.5f);
+            return BlockBehaviour.Properties.of().strength(2.5f);
         }
 
         private static BlockBehaviour.Properties modemProperties() {
-            return BlockBehaviour.Properties.of(Material.STONE).strength(1.5f);
+            return BlockBehaviour.Properties.of().strength(1.5f);
         }
 
         public static final RegistryEntry<ComputerBlock<ComputerBlockEntity>> COMPUTER_NORMAL = REGISTRY.register("computer_normal",
-            () -> new ComputerBlock<>(computerProperties(), ComputerFamily.NORMAL, BlockEntities.COMPUTER_NORMAL));
+            () -> new ComputerBlock<>(computerProperties().mapColor(MapColor.STONE), ComputerFamily.NORMAL, BlockEntities.COMPUTER_NORMAL));
         public static final RegistryEntry<ComputerBlock<ComputerBlockEntity>> COMPUTER_ADVANCED = REGISTRY.register("computer_advanced",
-            () -> new ComputerBlock<>(computerProperties(), ComputerFamily.ADVANCED, BlockEntities.COMPUTER_ADVANCED));
+            () -> new ComputerBlock<>(computerProperties().mapColor(MapColor.GOLD), ComputerFamily.ADVANCED, BlockEntities.COMPUTER_ADVANCED));
 
         public static final RegistryEntry<ComputerBlock<CommandComputerBlockEntity>> COMPUTER_COMMAND = REGISTRY.register("computer_command", () -> new ComputerBlock<>(
             computerProperties().strength(-1, 6000000.0F),
@@ -141,27 +140,27 @@ public final class ModRegistry {
         ));
 
         public static final RegistryEntry<TurtleBlock> TURTLE_NORMAL = REGISTRY.register("turtle_normal",
-            () -> new TurtleBlock(turtleProperties(), ComputerFamily.NORMAL, BlockEntities.TURTLE_NORMAL));
+            () -> new TurtleBlock(turtleProperties().mapColor(MapColor.STONE), ComputerFamily.NORMAL, BlockEntities.TURTLE_NORMAL));
         public static final RegistryEntry<TurtleBlock> TURTLE_ADVANCED = REGISTRY.register("turtle_advanced",
-            () -> new TurtleBlock(turtleProperties(), ComputerFamily.ADVANCED, BlockEntities.TURTLE_ADVANCED));
+            () -> new TurtleBlock(turtleProperties().mapColor(MapColor.GOLD), ComputerFamily.ADVANCED, BlockEntities.TURTLE_ADVANCED));
 
-        public static final RegistryEntry<SpeakerBlock> SPEAKER = REGISTRY.register("speaker", () -> new SpeakerBlock(properties()));
-        public static final RegistryEntry<DiskDriveBlock> DISK_DRIVE = REGISTRY.register("disk_drive", () -> new DiskDriveBlock(properties()));
-        public static final RegistryEntry<PrinterBlock> PRINTER = REGISTRY.register("printer", () -> new PrinterBlock(properties()));
+        public static final RegistryEntry<SpeakerBlock> SPEAKER = REGISTRY.register("speaker", () -> new SpeakerBlock(properties().mapColor(MapColor.STONE)));
+        public static final RegistryEntry<DiskDriveBlock> DISK_DRIVE = REGISTRY.register("disk_drive", () -> new DiskDriveBlock(properties().mapColor(MapColor.STONE)));
+        public static final RegistryEntry<PrinterBlock> PRINTER = REGISTRY.register("printer", () -> new PrinterBlock(properties().mapColor(MapColor.STONE)));
 
         public static final RegistryEntry<MonitorBlock> MONITOR_NORMAL = REGISTRY.register("monitor_normal",
-            () -> new MonitorBlock(properties(), BlockEntities.MONITOR_NORMAL));
+            () -> new MonitorBlock(properties().mapColor(MapColor.STONE), BlockEntities.MONITOR_NORMAL));
         public static final RegistryEntry<MonitorBlock> MONITOR_ADVANCED = REGISTRY.register("monitor_advanced",
-            () -> new MonitorBlock(properties(), BlockEntities.MONITOR_ADVANCED));
+            () -> new MonitorBlock(properties().mapColor(MapColor.GOLD), BlockEntities.MONITOR_ADVANCED));
 
         public static final RegistryEntry<WirelessModemBlock> WIRELESS_MODEM_NORMAL = REGISTRY.register("wireless_modem_normal",
-            () -> new WirelessModemBlock(properties(), BlockEntities.WIRELESS_MODEM_NORMAL));
+            () -> new WirelessModemBlock(properties().mapColor(MapColor.STONE), BlockEntities.WIRELESS_MODEM_NORMAL));
         public static final RegistryEntry<WirelessModemBlock> WIRELESS_MODEM_ADVANCED = REGISTRY.register("wireless_modem_advanced",
-            () -> new WirelessModemBlock(properties(), BlockEntities.WIRELESS_MODEM_ADVANCED));
+            () -> new WirelessModemBlock(properties().mapColor(MapColor.GOLD), BlockEntities.WIRELESS_MODEM_ADVANCED));
 
         public static final RegistryEntry<WiredModemFullBlock> WIRED_MODEM_FULL = REGISTRY.register("wired_modem_full",
-            () -> new WiredModemFullBlock(modemProperties()));
-        public static final RegistryEntry<CableBlock> CABLE = REGISTRY.register("cable", () -> new CableBlock(modemProperties()));
+            () -> new WiredModemFullBlock(modemProperties().mapColor(MapColor.STONE)));
+        public static final RegistryEntry<CableBlock> CABLE = REGISTRY.register("cable", () -> new CableBlock(modemProperties().mapColor(MapColor.STONE)));
     }
 
     public static class BlockEntities {
@@ -366,50 +365,11 @@ public final class ModRegistry {
         public static final RegistryEntry<ImpostorShapelessRecipe.Serializer> IMPOSTOR_SHAPELESS = REGISTRY.register("impostor_shapeless", ImpostorShapelessRecipe.Serializer::new);
     }
 
-    /**
-     * Register any objects which don't have to be done on the main thread.
-     */
-    public static void register() {
-        Blocks.REGISTRY.register();
-        BlockEntities.REGISTRY.register();
-        Items.REGISTRY.register();
-        TurtleSerialisers.REGISTRY.register();
-        PocketUpgradeSerialisers.REGISTRY.register();
-        Menus.REGISTRY.register();
-        ArgumentTypes.REGISTRY.register();
-        LootItemConditionTypes.REGISTRY.register();
-        RecipeSerializers.REGISTRY.register();
+    static class CreativeTabs {
+        static final RegistrationHelper<CreativeModeTab> REGISTRY = PlatformHelper.get().createRegistrationHelper(Registries.CREATIVE_MODE_TAB);
 
-        // Register bundled power providers
-        ComputerCraftAPI.registerBundledRedstoneProvider(new DefaultBundledRedstoneProvider());
-        ComputerCraftAPI.registerRefuelHandler(new FurnaceRefuelHandler());
-        ComputerCraftAPI.registerMediaProvider(stack -> {
-            var item = stack.getItem();
-            if (item instanceof IMedia media) return media;
-            if (item instanceof RecordItem) return RecordMedia.INSTANCE;
-            return null;
-        });
-
-        VanillaDetailRegistries.ITEM_STACK.addProvider(ItemDetails::fill);
-        VanillaDetailRegistries.BLOCK_IN_WORLD.addProvider(BlockDetails::fill);
-    }
-
-    /**
-     * Register any objects which must be done on the main thread.
-     */
-    public static void registerMainThread() {
-        CauldronInteraction.WATER.put(ModRegistry.Items.TURTLE_NORMAL.get(), TurtleItem.CAULDRON_INTERACTION);
-        CauldronInteraction.WATER.put(ModRegistry.Items.TURTLE_ADVANCED.get(), TurtleItem.CAULDRON_INTERACTION);
-    }
-
-    /**
-     * Configure a {@link CreativeModeTab.Builder} to contain all of ComputerCraft's items.
-     *
-     * @param builder The builder to configure.
-     * @return The same building, for calling {@link CreativeModeTab.Builder#build()} on.
-     */
-    public static CreativeModeTab.Builder registerCreativeTab(CreativeModeTab.Builder builder) {
-        return builder
+        @SuppressWarnings("unused")
+        private static final RegistryEntry<CreativeModeTab> TAB = REGISTRY.register("tab", () -> PlatformHelper.get().newCreativeModeTab()
             .icon(() -> new ItemStack(Items.COMPUTER_NORMAL.get()))
             .title(Component.translatable("itemGroup.computercraft"))
             .displayItems((context, out) -> {
@@ -441,18 +401,56 @@ public final class ModRegistry {
                 for (var colour = 0; colour < 16; colour++) {
                     out.accept(DiskItem.createFromIDAndColour(-1, null, Colour.VALUES[colour].getHex()));
                 }
-            });
+            })
+            .build());
+    }
+
+    /**
+     * Register any objects which don't have to be done on the main thread.
+     */
+    public static void register() {
+        Blocks.REGISTRY.register();
+        BlockEntities.REGISTRY.register();
+        Items.REGISTRY.register();
+        TurtleSerialisers.REGISTRY.register();
+        PocketUpgradeSerialisers.REGISTRY.register();
+        Menus.REGISTRY.register();
+        ArgumentTypes.REGISTRY.register();
+        LootItemConditionTypes.REGISTRY.register();
+        RecipeSerializers.REGISTRY.register();
+        CreativeTabs.REGISTRY.register();
+
+        // Register bundled power providers
+        ComputerCraftAPI.registerBundledRedstoneProvider(new DefaultBundledRedstoneProvider());
+        ComputerCraftAPI.registerRefuelHandler(new FurnaceRefuelHandler());
+        ComputerCraftAPI.registerMediaProvider(stack -> {
+            var item = stack.getItem();
+            if (item instanceof IMedia media) return media;
+            if (item instanceof RecordItem) return RecordMedia.INSTANCE;
+            return null;
+        });
+
+        VanillaDetailRegistries.ITEM_STACK.addProvider(ItemDetails::fill);
+        VanillaDetailRegistries.BLOCK_IN_WORLD.addProvider(BlockDetails::fill);
+    }
+
+    /**
+     * Register any objects which must be done on the main thread.
+     */
+    public static void registerMainThread() {
+        CauldronInteraction.WATER.put(ModRegistry.Items.TURTLE_NORMAL.get(), TurtleItem.CAULDRON_INTERACTION);
+        CauldronInteraction.WATER.put(ModRegistry.Items.TURTLE_ADVANCED.get(), TurtleItem.CAULDRON_INTERACTION);
     }
 
     private static void addTurtle(CreativeModeTab.Output out, TurtleItem turtle) {
         out.accept(turtle.create(-1, null, -1, null, null, 0, null));
         TurtleUpgrades.getVanillaUpgrades()
-            .map(x -> turtle.create(-1, null, -1, null, UpgradeData.ofDefault(x), 0, null))
+            .map(x -> turtle.create(-1, null, -1, null, x, 0, null))
             .forEach(out::accept);
     }
 
     private static void addPocket(CreativeModeTab.Output out, PocketComputerItem pocket) {
         out.accept(pocket.create(-1, null, -1, null));
-        PocketUpgrades.getVanillaUpgrades().map(x -> pocket.create(-1, null, -1, UpgradeData.ofDefault(x))).forEach(out::accept);
+        PocketUpgrades.getVanillaUpgrades().map(x -> pocket.create(-1, null, -1, x)).forEach(out::accept);
     }
 }

projects/common/src/main/java/dan200/computercraft/shared/command/CommandComputerCraft.java

@@ -6,12 +6,9 @@ package dan200.computercraft.shared.command;
 
 import com.mojang.brigadier.CommandDispatcher;
 import com.mojang.brigadier.arguments.StringArgumentType;
-import com.mojang.brigadier.builder.RequiredArgumentBuilder;
 import com.mojang.brigadier.exceptions.CommandSyntaxException;
-import com.mojang.brigadier.suggestion.Suggestions;
 import dan200.computercraft.core.computer.ComputerSide;
 import dan200.computercraft.core.metrics.Metrics;
-import dan200.computercraft.shared.command.arguments.ComputersArgumentType;
 import dan200.computercraft.shared.command.text.TableBuilder;
 import dan200.computercraft.shared.computer.core.ComputerFamily;
 import dan200.computercraft.shared.computer.core.ServerComputer;
@@ -127,7 +124,9 @@ public final class CommandComputerCraft {
                         if (computer.isOn()) shutdown++;
                         computer.shutdown();
                     }
-                    context.getSource().sendSuccess(Component.translatable("commands.computercraft.shutdown.done", shutdown, computers.size()), false);
+
+                    var didShutdown = shutdown;
+                    context.getSource().sendSuccess(() -> Component.translatable("commands.computercraft.shutdown.done", didShutdown, computers.size()), false);
                     return shutdown;
                 }))
 
@@ -141,7 +140,9 @@ public final class CommandComputerCraft {
                         if (!computer.isOn()) on++;
                         computer.turnOn();
                     }
-                    context.getSource().sendSuccess(Component.translatable("commands.computercraft.turn_on.done", on, computers.size()), false);
+
+                    var didOn = on;
+                    context.getSource().sendSuccess(() -> Component.translatable("commands.computercraft.turn_on.done", didOn, computers.size()), false);
                     return on;
                 }))
 
@@ -172,10 +173,7 @@ public final class CommandComputerCraft {
 
             .then(command("queue")
                 .requires(UserLevel.ANYONE)
-                .arg(
-                    RequiredArgumentBuilder.<CommandSourceStack, ComputersArgumentType.ComputersSupplier>argument("computer", manyComputers())
-                        .suggests((context, builder) -> Suggestions.empty())
-                )
+                .arg("computer", manyComputers())
                 .argManyValue("args", StringArgumentType.string(), Collections.emptyList())
                 .executes((ctx, args) -> {
                     var computers = getComputersArgument(ctx, "computer");
@@ -219,7 +217,7 @@ public final class CommandComputerCraft {
                         getMetricsInstance(context.getSource()).start();
 
                         var stopCommand = "/computercraft track stop";
-                        context.getSource().sendSuccess(Component.translatable(
+                        context.getSource().sendSuccess(() -> Component.translatable(
                             "commands.computercraft.track.start.stop",
                             link(text(stopCommand), stopCommand, Component.translatable("commands.computercraft.track.stop.action"))
                         ), false);

projects/common/src/main/java/dan200/computercraft/shared/command/UserLevel.java

@@ -49,29 +49,6 @@ public enum UserLevel implements Predicate<CommandSourceStack> {
         return source.hasPermission(toLevel());
     }
 
-    /**
-     * Take the union of two {@link UserLevel}s.
-     * <p>
-     * This satisfies the property that for all sources {@code s}, {@code a.test(s) || b.test(s) == (a ∪ b).test(s)}.
-     *
-     * @param left  The first user level to take the union of.
-     * @param right The second user level to take the union of.
-     * @return The union of two levels.
-     */
-    public static UserLevel union(UserLevel left, UserLevel right) {
-        if (left == right) return left;
-
-        // x ∪ ANYONE = ANYONE
-        if (left == ANYONE || right == ANYONE) return ANYONE;
-
-        // x ∪ OWNER = OWNER
-        if (left == OWNER) return right;
-        if (right == OWNER) return left;
-
-        // At this point, we have x != y and x, y ∈ { OP, OWNER_OP }.
-        return OWNER_OP;
-    }
-
     private static boolean isOwner(CommandSourceStack source) {
         var server = source.getServer();
         var sender = source.getEntity();

projects/common/src/main/java/dan200/computercraft/shared/command/arguments/ArgumentUtils.java

@@ -44,12 +44,12 @@ public class ArgumentUtils {
 
     @SuppressWarnings("unchecked")
     private static <A extends ArgumentType<?>, T extends ArgumentTypeInfo.Template<A>> void serializeToNetwork(FriendlyByteBuf buffer, ArgumentTypeInfo<A, T> type, ArgumentTypeInfo.Template<A> template) {
-        buffer.writeId(RegistryWrappers.COMMAND_ARGUMENT_TYPES, type);
+        RegistryWrappers.writeId(buffer, RegistryWrappers.COMMAND_ARGUMENT_TYPES, type);
         type.serializeToNetwork((T) template, buffer);
     }
 
     public static ArgumentTypeInfo.Template<?> deserialize(FriendlyByteBuf buffer) {
-        var type = buffer.readById(RegistryWrappers.COMMAND_ARGUMENT_TYPES);
+        var type = RegistryWrappers.readId(buffer, RegistryWrappers.COMMAND_ARGUMENT_TYPES);
         Objects.requireNonNull(type, "Unknown argument type");
         return type.deserializeFromNetwork(buffer);
     }

projects/common/src/main/java/dan200/computercraft/shared/command/arguments/ComputersArgumentType.java

@@ -18,6 +18,7 @@ import net.minecraft.commands.CommandBuildContext;
 import net.minecraft.commands.CommandSourceStack;
 import net.minecraft.commands.synchronization.ArgumentTypeInfo;
 import net.minecraft.network.FriendlyByteBuf;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.*;
 import java.util.concurrent.CompletableFuture;
@@ -158,14 +159,14 @@ public final class ComputersArgumentType implements ArgumentType<ComputersArgume
         }
 
         @Override
-        public ComputersArgumentType.Template unpack(ComputersArgumentType argumentType) {
+        public ComputersArgumentType.Template unpack(@NotNull ComputersArgumentType argumentType) {
             return new ComputersArgumentType.Template(this, argumentType.requireSome);
         }
     }
 
     public record Template(Info info, boolean requireSome) implements ArgumentTypeInfo.Template<ComputersArgumentType> {
         @Override
-        public ComputersArgumentType instantiate(CommandBuildContext context) {
+        public ComputersArgumentType instantiate(@NotNull CommandBuildContext context) {
             return requireSome ? SOME : MANY;
         }
 

projects/common/src/main/java/dan200/computercraft/shared/command/arguments/RepeatArgumentType.java

@@ -17,6 +17,7 @@ import net.minecraft.commands.synchronization.ArgumentTypeInfo;
 import net.minecraft.commands.synchronization.ArgumentTypeInfos;
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.network.chat.Component;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -143,7 +144,7 @@ public final class RepeatArgumentType<T, U> implements ArgumentType<List<T>> {
     ) implements ArgumentTypeInfo.Template<RepeatArgumentType<?, ?>> {
         @Override
         @SuppressWarnings({ "unchecked", "rawtypes" })
-        public RepeatArgumentType<?, ?> instantiate(CommandBuildContext commandBuildContext) {
+        public RepeatArgumentType<?, ?> instantiate(@NotNull CommandBuildContext commandBuildContext) {
             var child = child().instantiate(commandBuildContext);
             return flatten ? RepeatArgumentType.someFlat((ArgumentType) child, some()) : RepeatArgumentType.some(child, some());
         }

projects/common/src/main/java/dan200/computercraft/shared/command/builder/CommandBuilder.java

@@ -48,13 +48,9 @@ public class CommandBuilder<S> implements CommandNodeBuilder<S, Command<S>> {
         return this;
     }
 
-    public CommandBuilder<S> arg(ArgumentBuilder<S, ?> arg) {
-        args.add(arg);
-        return this;
-    }
-
     public CommandBuilder<S> arg(String name, ArgumentType<?> type) {
-        return arg(RequiredArgumentBuilder.argument(name, type));
+        args.add(RequiredArgumentBuilder.argument(name, type));
+        return this;
     }
 
     public <T> CommandNodeBuilder<S, ArgCommand<S, List<T>>> argManyValue(String name, ArgumentType<T> type, List<T> empty) {
@@ -78,7 +74,7 @@ public class CommandBuilder<S> implements CommandNodeBuilder<S, Command<S>> {
 
         return command -> {
             // The node for no arguments
-            var tail = setupTail(ctx -> command.run(ctx, empty.get()));
+            var tail = tail(ctx -> command.run(ctx, empty.get()));
 
             // The node for one or more arguments
             ArgumentBuilder<S, ?> moreArg = RequiredArgumentBuilder
@@ -87,7 +83,7 @@ public class CommandBuilder<S> implements CommandNodeBuilder<S, Command<S>> {
 
             // Chain all of them together!
             tail.then(moreArg);
-            return buildTail(tail);
+            return link(tail);
         };
     }
 
@@ -98,16 +94,20 @@ public class CommandBuilder<S> implements CommandNodeBuilder<S, Command<S>> {
 
     @Override
     public CommandNode<S> executes(Command<S> command) {
-        return buildTail(setupTail(command));
+        if (args.isEmpty()) throw new IllegalStateException("Cannot have empty arg chain builder");
+
+        return link(tail(command));
     }
 
-    private ArgumentBuilder<S, ?> setupTail(Command<S> command) {
-        return args.get(args.size() - 1).executes(command);
+    private ArgumentBuilder<S, ?> tail(Command<S> command) {
+        var defaultTail = args.get(args.size() - 1);
+        defaultTail.executes(command);
+        if (requires != null) defaultTail.requires(requires);
+        return defaultTail;
     }
 
-    private CommandNode<S> buildTail(ArgumentBuilder<S, ?> tail) {
+    private CommandNode<S> link(ArgumentBuilder<S, ?> tail) {
         for (var i = args.size() - 2; i >= 0; i--) tail = args.get(i).then(tail);
-        if (requires != null) tail.requires(requires);
         return tail.build();
     }
 }

projects/common/src/main/java/dan200/computercraft/shared/command/builder/HelpingArgumentBuilder.java

@@ -10,7 +10,6 @@ import com.mojang.brigadier.builder.LiteralArgumentBuilder;
 import com.mojang.brigadier.context.CommandContext;
 import com.mojang.brigadier.tree.CommandNode;
 import com.mojang.brigadier.tree.LiteralCommandNode;
-import dan200.computercraft.shared.command.UserLevel;
 import net.minecraft.ChatFormatting;
 import net.minecraft.commands.CommandSourceStack;
 import net.minecraft.network.chat.ClickEvent;
@@ -19,8 +18,6 @@ import net.minecraft.network.chat.Component;
 import javax.annotation.Nullable;
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.function.Predicate;
-import java.util.stream.Stream;
 
 import static dan200.computercraft.core.util.Nullability.assertNonNull;
 import static dan200.computercraft.shared.command.text.ChatHelpers.coloured;
@@ -40,29 +37,6 @@ public final class HelpingArgumentBuilder extends LiteralArgumentBuilder<Command
         return new HelpingArgumentBuilder(literal);
     }
 
-    @Override
-    public LiteralArgumentBuilder<CommandSourceStack> requires(Predicate<CommandSourceStack> requirement) {
-        throw new IllegalStateException("Cannot use requires on a HelpingArgumentBuilder");
-    }
-
-    @Override
-    public Predicate<CommandSourceStack> getRequirement() {
-        // The requirement of this node is the union of all child's requirements.
-        var requirements = Stream.concat(
-            children.stream().map(ArgumentBuilder::getRequirement),
-            getArguments().stream().map(CommandNode::getRequirement)
-        ).toList();
-
-        // If all requirements are a UserLevel, take the union of those instead.
-        var userLevel = UserLevel.OWNER;
-        for (var requirement : requirements) {
-            if (!(requirement instanceof UserLevel level)) return x -> requirements.stream().anyMatch(y -> y.test(x));
-            userLevel = UserLevel.union(userLevel, level);
-        }
-
-        return userLevel;
-    }
-
     @Override
     public LiteralArgumentBuilder<CommandSourceStack> executes(final Command<CommandSourceStack> command) {
         throw new IllegalStateException("Cannot use executes on a HelpingArgumentBuilder");
@@ -106,7 +80,9 @@ public final class HelpingArgumentBuilder extends LiteralArgumentBuilder<Command
         helpCommand.node = node;
 
         // Set up a /... help command
-        var helpNode = LiteralArgumentBuilder.<CommandSourceStack>literal("help").executes(helpCommand);
+        var helpNode = LiteralArgumentBuilder.<CommandSourceStack>literal("help")
+            .requires(x -> getArguments().stream().anyMatch(y -> y.getRequirement().test(x)))
+            .executes(helpCommand);
 
         // Add all normal command children to this and the help node
         for (var child : getArguments()) {
@@ -153,14 +129,14 @@ public final class HelpingArgumentBuilder extends LiteralArgumentBuilder<Command
 
         @Override
         public int run(CommandContext<CommandSourceStack> context) {
-            context.getSource().sendSuccess(getHelp(context, assertNonNull(node), id, command), false);
+            context.getSource().sendSuccess(() -> getHelp(context, assertNonNull(node), id, command), false);
             return 0;
         }
     }
 
     private static Command<CommandSourceStack> helpForChild(CommandNode<CommandSourceStack> node, String id, String command) {
         return context -> {
-            context.getSource().sendSuccess(getHelp(context, node, id + "." + node.getName().replace('-', '_'), command + " " + node.getName()), false);
+            context.getSource().sendSuccess(() -> getHelp(context, node, id + "." + node.getName().replace('-', '_'), command + " " + node.getName()), false);
             return 0;
         };
     }

projects/common/src/main/java/dan200/computercraft/shared/command/text/ServerTableFormatter.java

@@ -37,6 +37,6 @@ public class ServerTableFormatter implements TableFormatter {
 
     @Override
     public void writeLine(String label, Component component) {
-        source.sendSuccess(component, false);
+        source.sendSuccess(() -> component, false);
     }
 }

projects/common/src/main/java/dan200/computercraft/shared/computer/blocks/AbstractComputerBlock.java

@@ -32,7 +32,7 @@ import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.entity.BlockEntityTicker;
 import net.minecraft.world.level.block.entity.BlockEntityType;
 import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.storage.loot.LootContext;
+import net.minecraft.world.level.storage.loot.LootParams;
 import net.minecraft.world.level.storage.loot.parameters.LootContextParams;
 import net.minecraft.world.phys.BlockHitResult;
 import net.minecraft.world.phys.Vec3;
@@ -138,13 +138,12 @@ public abstract class AbstractComputerBlock<T extends AbstractComputerBlockEntit
 
         var tile = world.getBlockEntity(pos);
         if (tile instanceof AbstractComputerBlockEntity computer) {
-            var context = new LootContext.Builder(serverWorld)
-                .withRandom(world.random)
+            var context = new LootParams.Builder(serverWorld)
                 .withParameter(LootContextParams.ORIGIN, Vec3.atCenterOf(pos))
                 .withParameter(LootContextParams.TOOL, player.getMainHandItem())
                 .withParameter(LootContextParams.THIS_ENTITY, player)
                 .withParameter(LootContextParams.BLOCK_ENTITY, tile)
-                .withDynamicDrop(DROP, (ctx, out) -> out.accept(getItem(computer)));
+                .withDynamicDrop(DROP, out -> out.accept(getItem(computer)));
             for (var item : state.getDrops(context)) {
                 popResource(world, pos, item);
             }

projects/common/src/main/java/dan200/computercraft/shared/computer/blocks/AbstractComputerBlockEntity.java

@@ -199,11 +199,6 @@ public abstract class AbstractComputerBlockEntity extends BlockEntity implements
         return localSide;
     }
 
-    private void updateRedstoneInputs(ServerComputer computer) {
-        var pos = getBlockPos();
-        for (var dir : DirectionUtil.FACINGS) updateRedstoneInput(computer, dir, pos.relative(dir));
-    }
-
     private void updateRedstoneInput(ServerComputer computer, Direction dir, BlockPos targetPos) {
         var offsetSide = dir.getOpposite();
         var localDir = remapToLocalSide(dir);
@@ -259,7 +254,8 @@ public abstract class AbstractComputerBlockEntity extends BlockEntity implements
 
         // If the position is not any adjacent one, update all inputs. This is pretty terrible, but some redstone mods
         // handle this incorrectly.
-        updateRedstoneInputs(computer);
+        var pos = getBlockPos();
+        for (var dir : DirectionUtil.FACINGS) updateRedstoneInput(computer, dir, pos.relative(dir));
         invalidSides = (1 << 6) - 1; // Mark all peripherals as dirty.
     }
 
@@ -268,10 +264,9 @@ public abstract class AbstractComputerBlockEntity extends BlockEntity implements
      */
     public void updateOutput() {
         BlockEntityHelpers.updateBlock(this);
-        for (var dir : DirectionUtil.FACINGS) RedstoneUtil.propagateRedstoneOutput(getLevel(), getBlockPos(), dir);
-
-        var computer = getServerComputer();
-        if (computer != null) updateRedstoneInputs(computer);
+        for (var dir : DirectionUtil.FACINGS) {
+            RedstoneUtil.propagateRedstoneOutput(getLevel(), getBlockPos(), dir);
+        }
     }
 
     protected abstract ServerComputer createComputer(int id);

projects/common/src/main/java/dan200/computercraft/shared/computer/core/ServerContext.java

@@ -9,16 +9,13 @@ import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.filesystem.Mount;
 import dan200.computercraft.api.network.PacketNetwork;
 import dan200.computercraft.core.ComputerContext;
+import dan200.computercraft.core.computer.ComputerThread;
 import dan200.computercraft.core.computer.GlobalEnvironment;
 import dan200.computercraft.core.computer.mainthread.MainThread;
 import dan200.computercraft.core.computer.mainthread.MainThreadConfig;
 import dan200.computercraft.core.lua.CobaltLuaMachine;
 import dan200.computercraft.core.lua.ILuaMachine;
-import dan200.computercraft.core.methods.MethodSupplier;
-import dan200.computercraft.core.methods.PeripheralMethod;
 import dan200.computercraft.impl.AbstractComputerCraftAPI;
-import dan200.computercraft.impl.ApiFactories;
-import dan200.computercraft.impl.GenericSources;
 import dan200.computercraft.shared.CommonHooks;
 import dan200.computercraft.shared.computer.metrics.GlobalMetrics;
 import dan200.computercraft.shared.config.ConfigSpec;
@@ -70,13 +67,11 @@ public final class ServerContext {
         this.server = server;
         storageDir = server.getWorldPath(FOLDER);
         mainThread = new MainThread(mainThreadConfig);
-        context = ComputerContext.builder(new Environment(server))
-            .computerThreads(ConfigSpec.computerThreads.get())
-            .mainThreadScheduler(mainThread)
-            .luaFactory(luaMachine)
-            .apiFactories(ApiFactories.getAll())
-            .genericMethods(GenericSources.getAllMethods())
-            .build();
+        context = new ComputerContext(
+            new Environment(server),
+            new ComputerThread(ConfigSpec.computerThreads.get()),
+            mainThread, luaMachine
+        );
         idAssigner = new IDAssigner(storageDir.resolve("ids.json"));
     }
 
@@ -138,16 +133,6 @@ public final class ServerContext {
         return context;
     }
 
-    /**
-     * Get the {@link MethodSupplier} used to find methods on peripherals.
-     *
-     * @return The {@link PeripheralMethod} method supplier.
-     * @see ComputerContext#peripheralMethods()
-     */
-    public MethodSupplier<PeripheralMethod> peripheralMethods() {
-        return context.peripheralMethods();
-    }
-
     /**
      * Tick all components of this server context. This should <em>NOT</em> be called outside of {@link CommonHooks}.
      */

projects/common/src/main/java/dan200/computercraft/shared/computer/upload/TransferredFile.java

@@ -7,7 +7,7 @@ package dan200.computercraft.shared.computer.upload;
 import dan200.computercraft.api.lua.LuaFunction;
 import dan200.computercraft.core.apis.handles.BinaryReadableHandle;
 import dan200.computercraft.core.apis.handles.ByteBufferChannel;
-import dan200.computercraft.core.methods.ObjectSource;
+import dan200.computercraft.core.asm.ObjectSource;
 
 import java.nio.ByteBuffer;
 import java.util.Collections;

projects/common/src/main/java/dan200/computercraft/shared/config/AddressRuleConfig.java

@@ -4,19 +4,21 @@
 
 package dan200.computercraft.shared.config;
 
-import com.electronwill.nightconfig.core.CommentedConfig;
 import com.electronwill.nightconfig.core.Config;
 import com.electronwill.nightconfig.core.InMemoryCommentedFormat;
 import com.electronwill.nightconfig.core.UnmodifiableConfig;
 import dan200.computercraft.core.apis.http.options.Action;
 import dan200.computercraft.core.apis.http.options.AddressRule;
-import dan200.computercraft.core.apis.http.options.InvalidRuleException;
 import dan200.computercraft.core.apis.http.options.PartialOptions;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.*;
-import java.util.function.Consumer;
+import javax.annotation.Nullable;
+import java.util.Locale;
+import java.util.Optional;
+import java.util.OptionalInt;
+import java.util.OptionalLong;
+import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * Parses, checks and generates {@link Config}s for {@link AddressRule}.
@@ -24,65 +26,49 @@ import java.util.function.Consumer;
 class AddressRuleConfig {
     private static final Logger LOG = LoggerFactory.getLogger(AddressRuleConfig.class);
 
-    private static final AddressRule REJECT_ALL = AddressRule.parse("*", OptionalInt.empty(), Action.DENY.toPartial());
+    public static UnmodifiableConfig makeRule(String host, Action action) {
+        var config = InMemoryCommentedFormat.defaultInstance().createConfig(ConcurrentHashMap::new);
+        config.add("host", host);
+        config.add("action", action.name().toLowerCase(Locale.ROOT));
 
-    public static List<UnmodifiableConfig> defaultRules() {
-        return List.of(
-            makeRule(config -> {
-                config.setComment("host", """
-                    The magic "$private" host matches all private address ranges, such as localhost and 192.168.0.0/16.
-                    This rule prevents computers accessing internal services, and is strongly recommended.""");
-                config.add("host", "$private");
+        if (host.equals("*") && action == Action.ALLOW) {
+            config.setComment("max_download", """
+                The maximum size (in bytes) that a computer can download in a single request.
+                Note that responses may receive more data than allowed, but this data will not
+                be returned to the client.""");
+            config.set("max_download", AddressRule.MAX_DOWNLOAD);
 
-                config.setComment("action", "Deny all requests to private IP addresses.");
-                config.add("action", Action.DENY.name().toLowerCase(Locale.ROOT));
-            }),
-            makeRule(config -> {
-                config.setComment("host", """
-                    The wildcard "*" rule matches all remaining hosts.""");
-                config.add("host", "*");
+            config.setComment("max_upload", """
+                The maximum size (in bytes) that a computer can upload in a single request. This
+                includes headers and POST text.""");
+            config.set("max_upload", AddressRule.MAX_UPLOAD);
 
-                config.setComment("action", "Allow all non-denied hosts.");
-                config.add("action", Action.ALLOW.name().toLowerCase(Locale.ROOT));
+            config.setComment("max_websocket_message", "The maximum size (in bytes) that a computer can send or receive in one websocket packet.");
+            config.set("max_websocket_message", AddressRule.WEBSOCKET_MESSAGE);
 
-                config.setComment("max_download", """
-                    The maximum size (in bytes) that a computer can download in a single request.
-                    Note that responses may receive more data than allowed, but this data will not
-                    be returned to the client.""");
-                config.set("max_download", AddressRule.MAX_DOWNLOAD);
+            config.setComment("use_proxy", "Enable use of the HTTP/SOCKS proxy if it is configured.");
+            config.set("use_proxy", false);
+        }
 
-                config.setComment("max_upload", """
-                    The maximum size (in bytes) that a computer can upload in a single request. This
-                    includes headers and POST text.""");
-                config.set("max_upload", AddressRule.MAX_UPLOAD);
-
-                config.setComment("max_websocket_message", "The maximum size (in bytes) that a computer can send or receive in one websocket packet.");
-                config.set("max_websocket_message", AddressRule.WEBSOCKET_MESSAGE);
-
-                config.setComment("use_proxy", "Enable use of the HTTP/SOCKS proxy if it is configured.");
-                config.set("use_proxy", false);
-            })
-        );
-    }
-
-    private static UnmodifiableConfig makeRule(Consumer<CommentedConfig> setup) {
-        var config = InMemoryCommentedFormat.defaultInstance().createConfig(LinkedHashMap::new);
-        setup.accept(config);
         return config;
     }
 
-    public static AddressRule parseRule(UnmodifiableConfig builder) {
-        try {
-            return doParseRule(builder);
-        } catch (InvalidRuleException e) {
-            LOG.error("Malformed HTTP rule: {} HTTP will NOT work until this is fixed.", e.getMessage());
-            return REJECT_ALL;
-        }
+    public static boolean checkRule(UnmodifiableConfig builder) {
+        var hostObj = get(builder, "host", String.class).orElse(null);
+        var port = unboxOptInt(get(builder, "port", Number.class));
+        return hostObj != null && checkEnum(builder, "action", Action.class)
+            && check(builder, "port", Number.class)
+            && check(builder, "max_upload", Number.class)
+            && check(builder, "max_download", Number.class)
+            && check(builder, "websocket_message", Number.class)
+            && check(builder, "use_proxy", Boolean.class)
+            && AddressRule.parse(hostObj, port, PartialOptions.DEFAULT) != null;
     }
 
-    public static AddressRule doParseRule(UnmodifiableConfig builder) {
+    @Nullable
+    public static AddressRule parseRule(UnmodifiableConfig builder) {
         var hostObj = get(builder, "host", String.class).orElse(null);
-        if (hostObj == null) throw new InvalidRuleException("No 'host' specified");
+        if (hostObj == null) return null;
 
         var action = getEnum(builder, "action", Action.class).orElse(null);
         var port = unboxOptInt(get(builder, "port", Number.class));
@@ -102,19 +88,38 @@ class AddressRuleConfig {
         return AddressRule.parse(hostObj, port, options);
     }
 
+    private static <T> boolean check(UnmodifiableConfig config, String field, Class<T> klass) {
+        var value = config.get(field);
+        if (value == null || klass.isInstance(value)) return true;
+
+        LOG.warn("HTTP rule's {} is not a {}.", field, klass.getSimpleName());
+        return false;
+    }
+
+    private static <T extends Enum<T>> boolean checkEnum(UnmodifiableConfig config, String field, Class<T> klass) {
+        var value = config.get(field);
+        if (value == null) return true;
+
+        if (!(value instanceof String)) {
+            LOG.warn("HTTP rule's {} is not a string", field);
+            return false;
+        }
+
+        if (parseEnum(klass, (String) value) == null) {
+            LOG.warn("HTTP rule's {} is not a known option", field);
+            return false;
+        }
+
+        return true;
+    }
+
     private static <T> Optional<T> get(UnmodifiableConfig config, String field, Class<T> klass) {
         var value = config.get(field);
-        if (value == null) return Optional.empty();
-        if (klass.isInstance(value)) return Optional.of(klass.cast(value));
-
-        throw new InvalidRuleException(String.format(
-            "Field '%s' should be a '%s' but is a %s.",
-            field, klass.getSimpleName(), value.getClass().getSimpleName()
-        ));
+        return klass.isInstance(value) ? Optional.of(klass.cast(value)) : Optional.empty();
     }
 
     private static <T extends Enum<T>> Optional<T> getEnum(UnmodifiableConfig config, String field, Class<T> klass) {
-        return get(config, field, String.class).map(x -> parseEnum(field, klass, x));
+        return get(config, field, String.class).map(x -> parseEnum(klass, x));
     }
 
     private static OptionalLong unboxOptLong(Optional<? extends Number> value) {
@@ -125,14 +130,11 @@ class AddressRuleConfig {
         return value.map(Number::intValue).map(OptionalInt::of).orElse(OptionalInt.empty());
     }
 
-    private static <T extends Enum<T>> T parseEnum(String field, Class<T> klass, String x) {
+    @Nullable
+    private static <T extends Enum<T>> T parseEnum(Class<T> klass, String x) {
         for (var value : klass.getEnumConstants()) {
             if (value.name().equalsIgnoreCase(x)) return value;
         }
-
-        throw new InvalidRuleException(String.format(
-            "Field '%s' should be one of %s, but is '%s'.",
-            field, Arrays.stream(klass.getEnumConstants()).map(Enum::name).toList(), x
-        ));
+        return null;
     }
 }

projects/common/src/main/java/dan200/computercraft/shared/config/ConfigFile.java

@@ -54,6 +54,12 @@ public interface ConfigFile {
      * A group of config entries.
      */
     non-sealed interface Group extends Entry {
+        /**
+         * Get all entries in this group.
+         *
+         * @return All child entries.
+         */
+        Stream<Entry> children();
     }
 
     /**

projects/common/src/main/java/dan200/computercraft/shared/config/ConfigSpec.java

@@ -9,6 +9,7 @@ import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.core.CoreConfig;
 import dan200.computercraft.core.Logging;
 import dan200.computercraft.core.apis.http.NetworkUtils;
+import dan200.computercraft.core.apis.http.options.Action;
 import dan200.computercraft.core.apis.http.options.ProxyType;
 import dan200.computercraft.core.computer.mainthread.MainThreadConfig;
 import dan200.computercraft.shared.peripheral.monitor.MonitorRenderer;
@@ -19,7 +20,9 @@ import org.apache.logging.log4j.core.filter.MarkerFilter;
 
 import javax.annotation.Nullable;
 import java.nio.file.Path;
+import java.util.Arrays;
 import java.util.List;
+import java.util.Objects;
 import java.util.concurrent.TimeUnit;
 
 public final class ConfigSpec {
@@ -35,7 +38,6 @@ public final class ConfigSpec {
     public static final ConfigFile.Value<Boolean> logComputerErrors;
     public static final ConfigFile.Value<Boolean> commandRequireCreative;
     public static final ConfigFile.Value<Integer> uploadMaxSize;
-    public static final ConfigFile.Value<List<? extends String>> disabledGenericMethods;
 
     public static final ConfigFile.Value<Integer> computerThreads;
     public static final ConfigFile.Value<Integer> maxMainGlobalTime;
@@ -140,19 +142,6 @@ public final class ConfigSpec {
                     Require players to be in creative mode and be opped in order to interact with
                     command computers. This is the default behaviour for vanilla's Command blocks.""")
                 .define("command_require_creative", Config.commandRequireCreative);
-
-            disabledGenericMethods = builder
-                .comment("""
-                    A list of generic methods or method sources to disable. Generic methods are
-                    methods added to a block/block entity when there is no explicit peripheral
-                    provider. This includes inventory methods (i.e. inventory.getItemDetail,
-                    inventory.pushItems), and (if on Forge), the fluid_storage and energy_storage
-                    methods.
-                    Methods in this list can either be a whole group of methods (computercraft:inventory)
-                    or a single method (computercraft:inventory#pushItems).
-                    """)
-                .worldRestart()
-                .defineList("disabled_generic_methods", List.of(), x -> x instanceof String);
         }
 
         {
@@ -193,9 +182,9 @@ public final class ConfigSpec {
 
             httpEnabled = builder
                 .comment("""
-                    Enable the "http" API on Computers. Disabling this also disables the "pastebin" and
-                    "wget" programs, that many users rely on. It's recommended to leave this on and use
-                    the "rules" config option to impose more fine-grained control.""")
+                    Enable the "http" API on Computers. This also disables the "pastebin" and "wget"
+                    programs, that many users rely on. It's recommended to leave this on and use the
+                    "rules" config option to impose more fine-grained control.""")
                 .define("enabled", CoreConfig.httpEnabled);
 
             httpWebsocketEnabled = builder
@@ -205,23 +194,16 @@ public final class ConfigSpec {
             httpRules = builder
                 .comment("""
                     A list of rules which control behaviour of the "http" API for specific domains or
-                    IPs. Each rule matches against a hostname and an optional port, and then sets several
-                    properties for the request.  Rules are evaluated in order, meaning earlier rules override
-                    later ones.
-
-                    Valid properties:
-                     - "host" (required): The domain or IP address this rule matches. This may be a domain name
-                       ("pastebin.com"), wildcard ("*.pastebin.com") or CIDR notation ("127.0.0.0/8").
-                     - "port" (optional): Only match requests for a specific port, such as 80 or 443.
-
-                     - "action" (optional): Whether to allow or deny this request.
-                     - "max_download" (optional): The maximum size (in bytes) that a computer can download in this
-                       request.
-                     - "max_upload" (optional): The maximum size (in bytes) that a computer can upload in a this request.
-                     - "max_websocket_message" (optional): The maximum size (in bytes) that a computer can send or
-                       receive in one websocket packet.
-                     - "use_proxy" (optional): Enable use of the HTTP/SOCKS proxy if it is configured.""")
-                .defineList("rules", AddressRuleConfig.defaultRules(), x -> x instanceof UnmodifiableConfig);
+                    IPs. Each rule is an item with a 'host' to match against, and a series of
+                    properties. Rules are evaluated in order, meaning earlier rules override later
+                    ones.
+                    The host may be a domain name ("pastebin.com"), wildcard ("*.pastebin.com") or
+                    CIDR notation ("127.0.0.0/8").
+                    If no rules, the domain is blocked.""")
+                .defineList("rules", Arrays.asList(
+                    AddressRuleConfig.makeRule("$private", Action.DENY),
+                    AddressRuleConfig.makeRule("*", Action.ALLOW)
+                ), x -> x instanceof UnmodifiableConfig && AddressRuleConfig.checkRule((UnmodifiableConfig) x));
 
             httpMaxRequests = builder
                 .comment("""
@@ -413,8 +395,8 @@ public final class ConfigSpec {
         // HTTP
         CoreConfig.httpEnabled = httpEnabled.get();
         CoreConfig.httpWebsocketEnabled = httpWebsocketEnabled.get();
-
-        CoreConfig.httpRules = httpRules.get().stream().map(AddressRuleConfig::parseRule).toList();
+        CoreConfig.httpRules = httpRules.get().stream()
+            .map(AddressRuleConfig::parseRule).filter(Objects::nonNull).toList();
 
         CoreConfig.httpMaxRequests = httpMaxRequests.get();
         CoreConfig.httpMaxWebsockets = httpMaxWebsockets.get();

projects/common/src/main/java/dan200/computercraft/shared/container/BasicContainer.java

@@ -7,6 +7,7 @@ package dan200.computercraft.shared.container;
 import net.minecraft.core.NonNullList;
 import net.minecraft.world.Container;
 import net.minecraft.world.ContainerHelper;
+import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
 
 /**
@@ -15,6 +16,24 @@ import net.minecraft.world.item.ItemStack;
 public interface BasicContainer extends Container {
     NonNullList<ItemStack> getContents();
 
+    @Override
+    default int getMaxStackSize() {
+        return 64;
+    }
+
+    @Override
+    default void startOpen(Player player) {
+    }
+
+    @Override
+    default void stopOpen(Player player) {
+    }
+
+    @Override
+    default boolean canPlaceItem(int slot, ItemStack stack) {
+        return true;
+    }
+
     @Override
     default int getContainerSize() {
         return getContents().size();

projects/common/src/main/java/dan200/computercraft/shared/integration/RecipeModHelpers.java

@@ -5,7 +5,6 @@
 package dan200.computercraft.shared.integration;
 
 import dan200.computercraft.api.ComputerCraftAPI;
-import dan200.computercraft.api.upgrades.UpgradeData;
 import dan200.computercraft.impl.PocketUpgrades;
 import dan200.computercraft.impl.TurtleUpgrades;
 import dan200.computercraft.shared.ModRegistry;
@@ -57,14 +56,14 @@ public final class RecipeModHelpers {
         for (var turtleSupplier : TURTLES) {
             var turtle = turtleSupplier.get();
             for (var upgrade : TurtleUpgrades.instance().getUpgrades()) {
-                upgradeItems.add(turtle.create(-1, null, -1, null, UpgradeData.ofDefault(upgrade), 0, null));
+                upgradeItems.add(turtle.create(-1, null, -1, null, upgrade, 0, null));
             }
         }
 
         for (var pocketSupplier : POCKET_COMPUTERS) {
             var pocket = pocketSupplier.get();
             for (var upgrade : PocketUpgrades.instance().getUpgrades()) {
-                upgradeItems.add(pocket.create(-1, null, -1, UpgradeData.ofDefault(upgrade)));
+                upgradeItems.add(pocket.create(-1, null, -1, upgrade));
             }
         }
 

projects/common/src/main/java/dan200/computercraft/shared/integration/UpgradeRecipeGenerator.java

@@ -9,7 +9,6 @@ import dan200.computercraft.api.pocket.IPocketUpgrade;
 import dan200.computercraft.api.turtle.ITurtleUpgrade;
 import dan200.computercraft.api.turtle.TurtleSide;
 import dan200.computercraft.api.upgrades.UpgradeBase;
-import dan200.computercraft.api.upgrades.UpgradeData;
 import dan200.computercraft.impl.PocketUpgrades;
 import dan200.computercraft.impl.TurtleUpgrades;
 import dan200.computercraft.shared.pocket.items.PocketComputerItem;
@@ -112,22 +111,20 @@ public class UpgradeRecipeGenerator<T> {
 
         if (stack.getItem() instanceof TurtleItem item) {
             // Suggest possible upgrades which can be applied to this turtle
-            var left = item.getUpgradeWithData(stack, TurtleSide.LEFT);
-            var right = item.getUpgradeWithData(stack, TurtleSide.RIGHT);
+            var left = item.getUpgrade(stack, TurtleSide.LEFT);
+            var right = item.getUpgrade(stack, TurtleSide.RIGHT);
             if (left != null && right != null) return Collections.emptyList();
 
             List<T> recipes = new ArrayList<>();
             var ingredient = Ingredient.of(stack);
             for (var upgrade : turtleUpgrades) {
-                if (upgrade.turtle == null) throw new NullPointerException();
-
                 // The turtle is facing towards us, so upgrades on the left are actually crafted on the right.
                 if (left == null) {
-                    recipes.add(turtle(ingredient, upgrade.ingredient, turtleWith(stack, UpgradeData.ofDefault(upgrade.turtle), right)));
+                    recipes.add(turtle(ingredient, upgrade.ingredient, turtleWith(stack, upgrade.turtle, right)));
                 }
 
                 if (right == null) {
-                    recipes.add(turtle(upgrade.ingredient, ingredient, turtleWith(stack, left, UpgradeData.ofDefault(upgrade.turtle))));
+                    recipes.add(turtle(upgrade.ingredient, ingredient, turtleWith(stack, left, upgrade.turtle)));
                 }
             }
 
@@ -140,8 +137,7 @@ public class UpgradeRecipeGenerator<T> {
             List<T> recipes = new ArrayList<>();
             var ingredient = Ingredient.of(stack);
             for (var upgrade : pocketUpgrades) {
-                if (upgrade.pocket == null) throw new NullPointerException();
-                recipes.add(pocket(upgrade.ingredient, ingredient, pocketWith(stack, UpgradeData.ofDefault(upgrade.pocket))));
+                recipes.add(pocket(upgrade.ingredient, ingredient, pocketWith(stack, upgrade.pocket)));
             }
 
             return Collections.unmodifiableList(recipes);
@@ -184,21 +180,21 @@ public class UpgradeRecipeGenerator<T> {
         if (stack.getItem() instanceof TurtleItem item) {
             List<T> recipes = new ArrayList<>(0);
 
-            var left = item.getUpgradeWithData(stack, TurtleSide.LEFT);
-            var right = item.getUpgradeWithData(stack, TurtleSide.RIGHT);
+            var left = item.getUpgrade(stack, TurtleSide.LEFT);
+            var right = item.getUpgrade(stack, TurtleSide.RIGHT);
 
             // The turtle is facing towards us, so upgrades on the left are actually crafted on the right.
             if (left != null) {
                 recipes.add(turtle(
                     Ingredient.of(turtleWith(stack, null, right)),
-                    Ingredient.of(left.getUpgradeItem()),
+                    Ingredient.of(left.getCraftingItem()),
                     stack
                 ));
             }
 
             if (right != null) {
                 recipes.add(turtle(
-                    Ingredient.of(right.getUpgradeItem()),
+                    Ingredient.of(right.getCraftingItem()),
                     Ingredient.of(turtleWith(stack, left, null)),
                     stack
                 ));
@@ -208,9 +204,9 @@ public class UpgradeRecipeGenerator<T> {
         } else if (stack.getItem() instanceof PocketComputerItem) {
             List<T> recipes = new ArrayList<>(0);
 
-            var back = PocketComputerItem.getUpgradeWithData(stack);
+            var back = PocketComputerItem.getUpgrade(stack);
             if (back != null) {
-                recipes.add(pocket(Ingredient.of(back.getUpgradeItem()), Ingredient.of(pocketWith(stack, null)), stack));
+                recipes.add(pocket(Ingredient.of(back.getCraftingItem()), Ingredient.of(pocketWith(stack, null)), stack));
             }
 
             return Collections.unmodifiableList(recipes);
@@ -219,7 +215,7 @@ public class UpgradeRecipeGenerator<T> {
         }
     }
 
-    private static ItemStack turtleWith(ItemStack stack, @Nullable UpgradeData<ITurtleUpgrade> left, @Nullable UpgradeData<ITurtleUpgrade> right) {
+    private static ItemStack turtleWith(ItemStack stack, @Nullable ITurtleUpgrade left, @Nullable ITurtleUpgrade right) {
         var item = (TurtleItem) stack.getItem();
         return item.create(
             item.getComputerID(stack), item.getLabel(stack), item.getColour(stack),
@@ -227,7 +223,7 @@ public class UpgradeRecipeGenerator<T> {
         );
     }
 
-    private static ItemStack pocketWith(ItemStack stack, @Nullable UpgradeData<IPocketUpgrade> back) {
+    private static ItemStack pocketWith(ItemStack stack, @Nullable IPocketUpgrade back) {
         var item = (PocketComputerItem) stack.getItem();
         return item.create(
             item.getComputerID(stack), item.getLabel(stack), item.getColour(stack), back
@@ -276,7 +272,7 @@ public class UpgradeRecipeGenerator<T> {
                     recipes.add(turtle(
                         ingredient, // Right upgrade, recipe on left
                         Ingredient.of(turtleItem.create(-1, null, -1, null, null, 0, null)),
-                        turtleItem.create(-1, null, -1, null, UpgradeData.ofDefault(turtle), 0, null)
+                        turtleItem.create(-1, null, -1, null, turtle, 0, null)
                     ));
                 }
             }
@@ -287,7 +283,7 @@ public class UpgradeRecipeGenerator<T> {
                     recipes.add(pocket(
                         ingredient,
                         Ingredient.of(pocketItem.create(-1, null, -1, null)),
-                        pocketItem.create(-1, null, -1, UpgradeData.ofDefault(pocket))
+                        pocketItem.create(-1, null, -1, pocket)
                     ));
                 }
             }

projects/common/src/main/java/dan200/computercraft/shared/peripheral/generic/GenericPeripheral.java

@@ -12,23 +12,19 @@ import dan200.computercraft.api.peripheral.IComputerAccess;
 import dan200.computercraft.api.peripheral.IDynamicPeripheral;
 import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.shared.platform.RegistryWrappers;
-import net.minecraft.core.Direction;
 import net.minecraft.world.level.block.entity.BlockEntity;
 
 import javax.annotation.Nullable;
 import java.util.List;
 import java.util.Set;
 
-public final class GenericPeripheral implements IDynamicPeripheral {
-    private final BlockEntity tile;
-    private final Direction side;
-
+class GenericPeripheral implements IDynamicPeripheral {
     private final String type;
     private final Set<String> additionalTypes;
+    private final BlockEntity tile;
     private final List<SaturatedMethod> methods;
 
-    GenericPeripheral(BlockEntity tile, Direction side, @Nullable String name, Set<String> additionalTypes, List<SaturatedMethod> methods) {
-        this.side = side;
+    GenericPeripheral(BlockEntity tile, @Nullable String name, Set<String> additionalTypes, List<SaturatedMethod> methods) {
         var type = RegistryWrappers.BLOCK_ENTITY_TYPES.getKey(tile.getType());
         this.tile = tile;
         this.type = name != null ? name : type.toString();
@@ -36,10 +32,6 @@ public final class GenericPeripheral implements IDynamicPeripheral {
         this.methods = methods;
     }
 
-    public Direction side() {
-        return side;
-    }
-
     @Override
     public String[] getMethodNames() {
         var names = new String[methods.size()];
@@ -62,6 +54,7 @@ public final class GenericPeripheral implements IDynamicPeripheral {
         return additionalTypes;
     }
 
+    @Nullable
     @Override
     public Object getTarget() {
         return tile;

projects/common/src/main/java/dan200/computercraft/shared/peripheral/generic/GenericPeripheralBuilder.java

@@ -1,63 +0,0 @@
-// SPDX-FileCopyrightText: 2020 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.shared.peripheral.generic;
-
-import dan200.computercraft.api.peripheral.IPeripheral;
-import dan200.computercraft.api.peripheral.PeripheralType;
-import dan200.computercraft.core.methods.MethodSupplier;
-import dan200.computercraft.core.methods.NamedMethod;
-import dan200.computercraft.core.methods.PeripheralMethod;
-import dan200.computercraft.shared.computer.core.ServerContext;
-import net.minecraft.core.Direction;
-import net.minecraft.server.MinecraftServer;
-import net.minecraft.world.level.block.entity.BlockEntity;
-
-import javax.annotation.Nullable;
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.Set;
-
-/**
- * A builder for a {@link GenericPeripheral}.
- * <p>
- * This handles building a list of {@linkplain SaturatedMethod methods} and computing the appropriate
- * {@link PeripheralType} from the {@linkplain NamedMethod#genericType() methods' peripheral types}.
- * <p>
- * See the platform-specific peripheral providers for the usage of this.
- */
-final class GenericPeripheralBuilder {
-    private final MethodSupplier<PeripheralMethod> peripheralMethods;
-
-    private @Nullable String name;
-    private final Set<String> additionalTypes = new HashSet<>(0);
-    private final ArrayList<SaturatedMethod> methods = new ArrayList<>();
-
-    GenericPeripheralBuilder(MinecraftServer server) {
-        peripheralMethods = ServerContext.get(server).peripheralMethods();
-    }
-
-    @Nullable
-    IPeripheral toPeripheral(BlockEntity blockEntity, Direction side) {
-        if (methods.isEmpty()) return null;
-
-        methods.trimToSize();
-        return new GenericPeripheral(blockEntity, side, name, additionalTypes, methods);
-    }
-
-    boolean addMethods(Object target) {
-        return peripheralMethods.forEachSelfMethod(target, (name, method, info) -> {
-            methods.add(new SaturatedMethod(target, name, method));
-
-            // If we have a peripheral type, use it. Always pick the smallest one, so it's consistent (assuming mods
-            // don't change).
-            var type = info == null ? null : info.genericType();
-            if (type != null && type.getPrimaryType() != null) {
-                var primaryType = type.getPrimaryType();
-                if (this.name == null || this.name.compareTo(primaryType) > 0) this.name = primaryType;
-            }
-            if (type != null) additionalTypes.addAll(type.getAdditionalTypes());
-        });
-    }
-}

projects/common/src/main/java/dan200/computercraft/shared/peripheral/generic/SaturatedMethod.java

@@ -9,20 +9,18 @@ import dan200.computercraft.api.lua.ILuaContext;
 import dan200.computercraft.api.lua.LuaException;
 import dan200.computercraft.api.lua.MethodResult;
 import dan200.computercraft.api.peripheral.IComputerAccess;
-import dan200.computercraft.core.methods.PeripheralMethod;
+import dan200.computercraft.core.asm.NamedMethod;
+import dan200.computercraft.core.asm.PeripheralMethod;
 
-/**
- * A {@link PeripheralMethod} along with the method's target.
- */
 final class SaturatedMethod {
     private final Object target;
     private final String name;
     private final PeripheralMethod method;
 
-    SaturatedMethod(Object target, String name, PeripheralMethod method) {
+    SaturatedMethod(Object target, NamedMethod<PeripheralMethod> method) {
         this.target = target;
-        this.name = name;
-        this.method = method;
+        name = method.getName();
+        this.method = method.getMethod();
     }
 
     MethodResult apply(ILuaContext context, IComputerAccess computer, IArguments args) throws LuaException {

projects/common/src/main/java/dan200/computercraft/shared/peripheral/modem/wired/WiredModemPeripheral.java

@@ -16,12 +16,10 @@ import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.api.peripheral.NotAttachedException;
 import dan200.computercraft.api.peripheral.WorkMonitor;
 import dan200.computercraft.core.apis.PeripheralAPI;
-import dan200.computercraft.core.methods.PeripheralMethod;
+import dan200.computercraft.core.asm.PeripheralMethod;
 import dan200.computercraft.core.util.LuaUtil;
-import dan200.computercraft.shared.computer.core.ServerContext;
 import dan200.computercraft.shared.peripheral.modem.ModemPeripheral;
 import dan200.computercraft.shared.peripheral.modem.ModemState;
-import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.level.Level;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -286,8 +284,7 @@ public abstract class WiredModemPeripheral extends ModemPeripheral implements Wi
 
     private void attachPeripheralImpl(IComputerAccess computer, ConcurrentMap<String, RemotePeripheralWrapper> peripherals, String periphName, IPeripheral peripheral) {
         if (!peripherals.containsKey(periphName) && !periphName.equals(getLocalPeripheral().getConnectedName())) {
-            var methods = ServerContext.get(((ServerLevel) getLevel()).getServer()).peripheralMethods().getSelfMethods(peripheral);
-            var wrapper = new RemotePeripheralWrapper(modem, peripheral, computer, periphName, methods);
+            var wrapper = new RemotePeripheralWrapper(modem, peripheral, computer, periphName);
             peripherals.put(periphName, wrapper);
             wrapper.attach();
         }
@@ -317,7 +314,7 @@ public abstract class WiredModemPeripheral extends ModemPeripheral implements Wi
         private volatile boolean attached;
         private final Set<String> mounts = new HashSet<>();
 
-        RemotePeripheralWrapper(WiredModemElement element, IPeripheral peripheral, IComputerAccess computer, String name, Map<String, PeripheralMethod> methods) {
+        RemotePeripheralWrapper(WiredModemElement element, IPeripheral peripheral, IComputerAccess computer, String name) {
             this.element = element;
             this.peripheral = peripheral;
             this.computer = computer;
@@ -325,7 +322,7 @@ public abstract class WiredModemPeripheral extends ModemPeripheral implements Wi
 
             type = Objects.requireNonNull(peripheral.getType(), "Peripheral type cannot be null");
             additionalTypes = peripheral.getAdditionalTypes();
-            methodMap = methods;
+            methodMap = PeripheralAPI.getMethods(peripheral);
         }
 
         public void attach() {

projects/common/src/main/java/dan200/computercraft/shared/peripheral/speaker/SpeakerPeripheral.java

@@ -190,7 +190,7 @@ public abstract class SpeakerPeripheral implements IPeripheral {
      * The speaker supports [all of Minecraft's noteblock instruments](https://minecraft.fandom.com/wiki/Note_Block#Instruments).
      * These are:
      * <p>
-     * {@code "harp"}, {@code "basedrum"}, {@code "snare"}, {@code "hat"}, {@code "bass"}, {@code "flute"},
+     * {@code "harp"}, {@code "basedrum"}, {@code "snare"}, {@code "hat"}, {@code "bass"}, @code "flute"},
      * {@code "bell"}, {@code "guitar"}, {@code "chime"}, {@code "xylophone"}, {@code "iron_xylophone"},
      * {@code "cow_bell"}, {@code "didgeridoo"}, {@code "bit"}, {@code "banjo"} and {@code "pling"}.
      *

projects/common/src/main/java/dan200/computercraft/shared/peripheral/speaker/SpeakerPosition.java

@@ -19,7 +19,7 @@ public record SpeakerPosition(@Nullable Level level, Vec3 position, @Nullable En
     }
 
     public static SpeakerPosition of(Entity entity) {
-        return new SpeakerPosition(entity.level, entity.getEyePosition(1), entity);
+        return new SpeakerPosition(entity.level(), entity.getEyePosition(1), entity);
     }
 
     public boolean withinDistance(SpeakerPosition other, double distanceSq) {

projects/common/src/main/java/dan200/computercraft/shared/platform/FakePlayerConstants.java

@@ -1,31 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.shared.platform;
-
-import com.mojang.authlib.GameProfile;
-import net.minecraft.core.BlockPos;
-import net.minecraft.core.Direction;
-import net.minecraft.server.level.ServerLevel;
-import net.minecraft.world.item.ItemStack;
-
-/**
- * Shared constants for {@linkplain PlatformHelper#createFakePlayer(ServerLevel, GameProfile) fake player}
- * implementations.
- *
- * @see net.minecraft.server.level.ServerPlayer
- * @see net.minecraft.world.entity.player.Player
- */
-final class FakePlayerConstants {
-    private FakePlayerConstants() {
-    }
-
-    /**
-     * The maximum distance this player can reach.
-     * <p>
-     * This is used in the override of {@link net.minecraft.world.entity.player.Player#mayUseItemAt(BlockPos, Direction, ItemStack)},
-     * to prevent the fake player reaching more than 2 blocks away.
-     */
-    static final double MAX_REACH = 2;
-}

projects/common/src/main/java/dan200/computercraft/shared/platform/PlatformHelper.java

@@ -33,6 +33,7 @@ import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.inventory.CraftingContainer;
 import net.minecraft.world.inventory.MenuType;
+import net.minecraft.world.item.CreativeModeTab;
 import net.minecraft.world.item.DyeColor;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.item.ItemStack;
@@ -68,13 +69,6 @@ public interface PlatformHelper extends dan200.computercraft.impl.PlatformHelper
         return (PlatformHelper) dan200.computercraft.impl.PlatformHelper.get();
     }
 
-    /**
-     * Check if we're running in a development environment.
-     *
-     * @return If we're running in a development environment.
-     */
-    boolean isDevelopmentEnvironment();
-
     /**
      * Create a new config builder.
      *
@@ -279,6 +273,13 @@ public interface PlatformHelper extends dan200.computercraft.impl.PlatformHelper
      */
     int getBurnTime(ItemStack stack);
 
+    /**
+     * Create a builder for a new creative tab.
+     *
+     * @return The creative tab builder.
+     */
+    CreativeModeTab.Builder newCreativeModeTab();
+
     /**
      * Get the "container" item to be returned after crafting. For instance, crafting with a lava bucket should return
      * an empty bucket.

projects/common/src/main/java/dan200/computercraft/shared/platform/RegistryWrappers.java

@@ -5,7 +5,6 @@
 package dan200.computercraft.shared.platform;
 
 import net.minecraft.commands.synchronization.ArgumentTypeInfo;
-import net.minecraft.core.IdMap;
 import net.minecraft.core.Registry;
 import net.minecraft.core.registries.Registries;
 import net.minecraft.network.FriendlyByteBuf;
@@ -37,7 +36,9 @@ public final class RegistryWrappers {
     public static final RegistryWrapper<RecipeSerializer<?>> RECIPE_SERIALIZERS = PlatformHelper.get().wrap(Registries.RECIPE_SERIALIZER);
     public static final RegistryWrapper<MenuType<?>> MENU = PlatformHelper.get().wrap(Registries.MENU);
 
-    public interface RegistryWrapper<T> extends IdMap<T> {
+    public interface RegistryWrapper<T> extends Iterable<T> {
+        int getId(T object);
+
         ResourceLocation getKey(T object);
 
         T get(ResourceLocation location);
@@ -45,6 +46,8 @@ public final class RegistryWrappers {
         @Nullable
         T tryGet(ResourceLocation location);
 
+        T get(int id);
+
         default Stream<T> stream() {
             return StreamSupport.stream(spliterator(), false);
         }
@@ -53,6 +56,15 @@ public final class RegistryWrappers {
     private RegistryWrappers() {
     }
 
+    public static <K> void writeId(FriendlyByteBuf buf, RegistryWrapper<K> registry, K object) {
+        buf.writeVarInt(registry.getId(object));
+    }
+
+    public static <K> K readId(FriendlyByteBuf buf, RegistryWrapper<K> registry) {
+        var id = buf.readVarInt();
+        return registry.get(id);
+    }
+
     public static <K> void writeKey(FriendlyByteBuf buf, RegistryWrapper<K> registry, K object) {
         buf.writeResourceLocation(registry.getKey(object));
     }

projects/common/src/main/java/dan200/computercraft/shared/pocket/apis/PocketAPI.java

@@ -7,7 +7,6 @@ package dan200.computercraft.shared.pocket.apis;
 import dan200.computercraft.api.lua.ILuaAPI;
 import dan200.computercraft.api.lua.LuaFunction;
 import dan200.computercraft.api.pocket.IPocketUpgrade;
-import dan200.computercraft.api.upgrades.UpgradeData;
 import dan200.computercraft.impl.PocketUpgrades;
 import dan200.computercraft.shared.pocket.core.PocketServerComputer;
 import net.minecraft.core.NonNullList;
@@ -15,7 +14,6 @@ import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
 
 import javax.annotation.Nullable;
-import java.util.Objects;
 
 /**
  * Control the current pocket computer, adding or removing upgrades.
@@ -70,7 +68,7 @@ public class PocketAPI implements ILuaAPI {
         if (newUpgrade == null) return new Object[]{ false, "Cannot find a valid upgrade" };
 
         // Remove the current upgrade
-        if (previousUpgrade != null) storeItem(player, previousUpgrade.getUpgradeItem());
+        if (previousUpgrade != null) storeItem(player, previousUpgrade.getCraftingItem().copy());
 
         // Set the new upgrade
         computer.setUpgrade(newUpgrade);
@@ -95,7 +93,7 @@ public class PocketAPI implements ILuaAPI {
 
         computer.setUpgrade(null);
 
-        storeItem(player, previousUpgrade.getUpgradeItem());
+        storeItem(player, previousUpgrade.getCraftingItem().copy());
 
         return new Object[]{ true };
     }
@@ -107,13 +105,13 @@ public class PocketAPI implements ILuaAPI {
         }
     }
 
-    private static @Nullable UpgradeData<IPocketUpgrade> findUpgrade(NonNullList<ItemStack> inv, int start, @Nullable UpgradeData<IPocketUpgrade> previous) {
+    private static @Nullable IPocketUpgrade findUpgrade(NonNullList<ItemStack> inv, int start, @Nullable IPocketUpgrade previous) {
         for (var i = 0; i < inv.size(); i++) {
             var invStack = inv.get((i + start) % inv.size());
             if (!invStack.isEmpty()) {
                 var newUpgrade = PocketUpgrades.instance().get(invStack);
 
-                if (newUpgrade != null && !Objects.equals(newUpgrade, previous)) {
+                if (newUpgrade != null && newUpgrade != previous) {
                     // Consume an item from this stack and exit the loop
                     invStack = invStack.copy();
                     invStack.shrink(1);

projects/common/src/main/java/dan200/computercraft/shared/pocket/core/PocketServerComputer.java

@@ -7,7 +7,6 @@ package dan200.computercraft.shared.pocket.core;
 import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.api.pocket.IPocketAccess;
 import dan200.computercraft.api.pocket.IPocketUpgrade;
-import dan200.computercraft.api.upgrades.UpgradeData;
 import dan200.computercraft.core.computer.ComputerSide;
 import dan200.computercraft.shared.common.IColouredItem;
 import dan200.computercraft.shared.computer.core.ComputerFamily;
@@ -105,13 +104,12 @@ public class PocketServerComputer extends ServerComputer implements IPocketAcces
     }
 
     @Override
-    @Deprecated(forRemoval = true)
     public Map<ResourceLocation, IPeripheral> getUpgrades() {
         return upgrade == null ? Collections.emptyMap() : Collections.singletonMap(upgrade.getUpgradeID(), getPeripheral(ComputerSide.BACK));
     }
 
-    public @Nullable UpgradeData<IPocketUpgrade> getUpgrade() {
-        return upgrade == null ? null : UpgradeData.of(upgrade, getUpgradeNBTData());
+    public @Nullable IPocketUpgrade getUpgrade() {
+        return upgrade;
     }
 
     /**
@@ -121,11 +119,13 @@ public class PocketServerComputer extends ServerComputer implements IPocketAcces
      *
      * @param upgrade The new upgrade to set it to, may be {@code null}.
      */
-    public void setUpgrade(@Nullable UpgradeData<IPocketUpgrade> upgrade) {
+    public void setUpgrade(@Nullable IPocketUpgrade upgrade) {
+        if (this.upgrade == upgrade) return;
+
         synchronized (this) {
             PocketComputerItem.setUpgrade(stack, upgrade);
             updateUpgradeNBTData();
-            this.upgrade = upgrade == null ? null : upgrade.upgrade();
+            this.upgrade = upgrade;
             invalidatePeripheral();
         }
     }
@@ -153,7 +153,7 @@ public class PocketServerComputer extends ServerComputer implements IPocketAcces
         super.tickServer();
 
         // Find any players which have gone missing and remove them from the tracking list.
-        tracking.removeIf(player -> !player.isAlive() || player.level != getLevel());
+        tracking.removeIf(player -> !player.isAlive() || player.level() != getLevel());
 
         // And now find any new players, add them to the tracking list, and broadcast state where appropriate.
         var sendState = hasOutputChanged() || lightChanged;

projects/common/src/main/java/dan200/computercraft/shared/pocket/inventory/PocketComputerMenuProvider.java

@@ -48,7 +48,7 @@ public class PocketComputerMenuProvider implements MenuProvider {
             isTypingOnly ? ModRegistry.Menus.POCKET_COMPUTER_NO_TERM.get() : ModRegistry.Menus.POCKET_COMPUTER.get(), id, inventory,
             p -> {
                 var stack = p.getItemInHand(hand);
-                return stack.getItem() == item && PocketComputerItem.getServerComputer(assertNonNull(entity.level.getServer()), stack) == computer;
+                return stack.getItem() == item && PocketComputerItem.getServerComputer(assertNonNull(entity.level().getServer()), stack) == computer;
             },
             computer, item.getFamily()
         );