Bump CC:T to 1.111.0

We keep getting bug reports on 1.20.1 about an Optifine bug that causes
Forge's capabilities to not work (#1458). The cause of this bug is not
immediately visible to users, and can be very confusing when hit.

Optifine have not released a fix for this bug (despite it being reported
a year ago), and we continue to receive bug reports about it.

Nobody likes it when mods complain about other mods. So much Minecraft
drama can be traced back to this, and it's a slippery slope to go down.
I've tried to keep this as unobtrusive as possible — it's just a chat
message at world join, and it'll turn off if the bug is fixed.

.github/workflows/main-ci.yml

@@ -58,13 +58,13 @@ jobs:
         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
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: CC-Tweaked
         path: ./jars
 
     - name: 📤 Upload coverage
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
   build-core:
     strategy:
@@ -81,24 +81,28 @@ jobs:
     runs-on: ${{ matrix.uses }}
 
     steps:
-    - name: Clone repository
+    - name: 📥 Clone repository
       uses: actions/checkout@v4
 
-    - name: Set up Java
+    - name: 📥 Set up Java
       uses: actions/setup-java@v4
       with:
         java-version: 17
         distribution: 'temurin'
 
-    - name: Setup Gradle
+    - name: 📥 Setup Gradle
       uses: gradle/actions/setup-gradle@v3
       with:
         cache-read-only: ${{ !startsWith(github.ref, 'refs/heads/mc-') }}
 
-    - name: Run tests
+    - name: ⚒️ Build
+      run: |
+        ./gradlew --configure-on-demand :core:assemble
+
+    - name: 🧪 Run tests
       run: |
         ./gradlew --configure-on-demand :core:test
 
-    - name: Parse test reports
+    - name: 🧪 Parse test reports
       run: python3 ./tools/parse-reports.py
       if: ${{ failure() }}

.github/workflows/make-doc.yml

@@ -3,8 +3,7 @@ name: Build documentation
 on:
   push:
     branches:
-    - mc-1.19.x
-    - mc-1.20.x
+    - mc-*
 
 jobs:
   make_doc:

.gitpod.yml

@@ -1,26 +0,0 @@
-# SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
-#
-# SPDX-License-Identifier: MPL-2.0
-
-image:
-  file: config/gitpod/Dockerfile
-
-ports:
-  - port: 25565
-    onOpen: notify
-
-vscode:
-  extensions:
-    - eamodio.gitlens
-    - github.vscode-pull-request-github
-    - ms-azuretools.vscode-docker
-    - redhat.java
-    - richardwillis.vscode-gradle
-    - vscjava.vscode-java-debug
-    - vscode.github
-
-tasks:
-  - name: Setup pre-commit hool
-    init: pre-commit install --allow-missing-config
-  - name: Install npm packages
-    init: npm ci

.reuse/dep5

@@ -8,8 +8,7 @@ Files:
   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/*
+  projects/*/src/generated/*
   projects/web/src/htmlTransform/export/index.json
   projects/web/src/htmlTransform/export/items/minecraft/*
 Comment: Generated/data files are CC0.

CONTRIBUTING.md

@@ -29,9 +29,9 @@ automatically with GitHub, so please don't submit PRs adding/changing translatio
 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:
-   - Java Development Kit (JDK) installed. This can be downloaded from [Adoptium].
+   - Java Development Kit (JDK). This can be downloaded from [Adoptium].
    - [Git](https://git-scm.com/).
-   - If you want to work on documentation, [NodeJS][node].
+   - [NodeJS][node].
 
  - Download CC: Tweaked's source code:
    ```

README.md

@@ -51,8 +51,9 @@ dependencies {
   compileOnly("cc.tweaked:cc-tweaked-$mcVersion-common-api:$cctVersion")
 
   // Forge Gradle
-  compileOnly("cc.tweaked:cc-tweaked-$mcVersion-forge-api:$cctVersion")
-  runtimeOnly("cc.tweaked:cc-tweaked-$mcVersion-forge:$cctVersion")
+  compileOnly("cc.tweaked:cc-tweaked-$mcVersion-core-api:$cctVersion")
+  compileOnly(fg.deobf("cc.tweaked:cc-tweaked-$mcVersion-forge-api:$cctVersion"))
+  runtimeOnly(fg.deobf("cc.tweaked:cc-tweaked-$mcVersion-forge:$cctVersion"))
 
   // Fabric Loom
   modCompileOnly("cc.tweaked:cc-tweaked-$mcVersion-fabric-api:$cctVersion")

build.gradle.kts

@@ -5,9 +5,8 @@
 import cc.tweaked.gradle.JUnitExt
 import net.fabricmc.loom.api.LoomGradleExtensionAPI
 import net.fabricmc.loom.util.gradle.SourceSetHelper
-import org.jetbrains.gradle.ext.compiler
-import org.jetbrains.gradle.ext.runConfigurations
-import org.jetbrains.gradle.ext.settings
+import org.jetbrains.gradle.ext.*
+import org.jetbrains.gradle.ext.Application
 
 plugins {
     publishing
@@ -86,6 +85,19 @@ idea.project.settings.runConfigurations {
         moduleName = "${idea.project.name}.forge.test"
         packageName = ""
     }
+
+    register<Application>("Standalone") {
+        moduleName = "${idea.project.name}.standalone.main"
+        mainClass = "cc.tweaked.standalone.Main"
+        programParameters = "--resources=projects/core/src/main/resources --term=80x30 --allow-local-domains"
+    }
+}
+
+// Build with the IntelliJ, rather than through Gradle. This may require setting the "Compiler Output" option in
+// "Project Structure".
+idea.project.settings.delegateActions {
+    delegateBuildRunToGradle = false
+    testRunner = ActionDelegationConfig.TestRunner.PLATFORM
 }
 
 idea.project.settings.compiler.javac {

buildSrc/build.gradle.kts

@@ -14,14 +14,18 @@ repositories {
     mavenCentral()
     gradlePluginPortal()
 
-    maven("https://maven.neoforged.net/releases") {
-        name = "NeoForge"
+    maven("https://maven.minecraftforge.net") {
+        name = "Forge"
         content {
             includeGroup("net.minecraftforge")
-            includeGroup("net.neoforged")
-            includeGroup("net.neoforged.gradle")
-            includeModule("codechicken", "DiffPatch")
-            includeModule("net.covers1624", "Quack")
+            includeGroup("net.minecraftforge.gradle")
+        }
+    }
+
+    maven("https://maven.parchmentmc.org") {
+        name = "Librarian"
+        content {
+            includeGroupByRegex("^org\\.parchmentmc.*")
         }
     }
 
@@ -47,9 +51,10 @@ dependencies {
 
     implementation(libs.curseForgeGradle)
     implementation(libs.fabric.loom)
+    implementation(libs.forgeGradle)
     implementation(libs.ideaExt)
+    implementation(libs.librarian)
     implementation(libs.minotaur)
-    implementation(libs.neoGradle.userdev)
     implementation(libs.vanillaExtract)
 }
 

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

@@ -10,8 +10,10 @@ 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.neoforged.gradle.userdev")
+    id("org.parchmentmc.librarian.forgegradle")
 }
 
 plugins.apply(CCTweakedPlugin::class.java)
@@ -19,20 +21,10 @@ plugins.apply(CCTweakedPlugin::class.java)
 val mcVersion: String by extra
 
 minecraft {
-    modIdentifier("computercraft")
-}
-
-subsystems {
-    parchment {
-        val libs = project.extensions.getByType<VersionCatalogsExtension>().named("libs")
-        minecraftVersion = libs.findVersion("parchmentMc").get().toString()
-        mappingsVersion = libs.findVersion("parchment").get().toString()
-    }
-}
-
-dependencies {
     val libs = project.extensions.getByType<VersionCatalogsExtension>().named("libs")
-    implementation("net.neoforged:neoforge:${libs.findVersion("neoForge").get()}")
+    mappings("parchment", "${libs.findVersion("parchmentMc").get()}-${libs.findVersion("parchment").get()}-$mcVersion")
+
+    accessTransformer(project(":forge").file("src/main/resources/META-INF/accesstransformer.cfg"))
 }
 
 MinecraftConfigurations.setup(project)
@@ -40,3 +32,13 @@ MinecraftConfigurations.setup(project)
 extensions.configure(CCTweakedExtension::class.java) {
     linters(minecraft = true, loader = "forge")
 }
+
+dependencies {
+    val libs = project.extensions.getByType<VersionCatalogsExtension>().named("libs")
+    "minecraft"("net.minecraftforge:forge:$mcVersion-${libs.findVersion("forge").get()}")
+}
+
+tasks.configureEach {
+    // genIntellijRuns isn't registered until much later, so we need this silly hijinks.
+    if (name == "genIntellijRuns") doLast { IdeaRunConfigurations(project).patch() }
+}

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

@@ -44,6 +44,13 @@ repositories {
 
     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("cc.tweaked")
             // Things we mirror
@@ -87,9 +94,8 @@ sourceSets.all {
             check("InlineMeSuggester", CheckSeverity.OFF) // Minecraft uses @Deprecated liberally
             // Too many false positives right now. Maybe we need an indirection for it later on.
             check("ReferenceEquality", CheckSeverity.OFF)
-            check("UnusedVariable", CheckSeverity.OFF) // Too many false positives with records.
+            check("EnumOrdinal", CheckSeverity.OFF) // For now. We could replace most of these with EnumMap.
             check("OperatorPrecedence", CheckSeverity.OFF) // For now.
-            check("AlreadyChecked", CheckSeverity.OFF) // Seems to be broken?
             check("NonOverridingEquals", CheckSeverity.OFF) // Peripheral.equals makes this hard to avoid
             check("FutureReturnValueIgnored", CheckSeverity.OFF) // Too many false positives with Netty
 

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

@@ -35,7 +35,6 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 import java.io.File
 import java.io.IOException
 import java.net.URI
-import java.net.URL
 import java.util.regex.Pattern
 
 abstract class CCTweakedExtension(
@@ -226,12 +225,12 @@ abstract class CCTweakedExtension(
      * where possible.
      */
     fun downloadFile(label: String, url: String): File {
-        val url = URL(url)
-        val path = File(url.path)
+        val uri = URI(url)
+        val path = File(uri.path)
 
         project.repositories.ivy {
             name = label
-            setUrl(URI(url.protocol, url.userInfo, url.host, url.port, path.parent, null, null))
+            setUrl(URI(uri.scheme, uri.userInfo, uri.host, uri.port, path.parent, null, null))
             patternLayout {
                 artifact("[artifact].[ext]")
             }

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

@@ -4,59 +4,23 @@
 
 package cc.tweaked.gradle
 
-import net.neoforged.gradle.common.runs.run.RunImpl
-import net.neoforged.gradle.common.runs.tasks.RunExec
-import net.neoforged.gradle.dsl.common.extensions.RunnableSourceSet
-import net.neoforged.gradle.dsl.common.runs.run.Run
+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.api.tasks.SourceSet
 import org.gradle.jvm.toolchain.JavaToolchainService
-import org.gradle.kotlin.dsl.assign
-import org.gradle.kotlin.dsl.create
-import org.gradle.kotlin.dsl.findByType
 import java.nio.file.Files
 
 /**
  * Set [JavaExec] task to run a given [RunConfig].
- *
- * See also [RunExec].
  */
-fun JavaExec.setRunConfig(config: Run) {
-    mainClass.set(config.mainClass)
-    workingDir = config.workingDirectory.get().asFile
-    argumentProviders.add { config.programArguments.get() }
-    jvmArgumentProviders.add { config.jvmArguments.get() }
-
-    environment(config.environmentVariables.get())
-    systemProperties(config.systemProperties.get())
-
-    config.modSources.get().forEach { classpath(it.runtimeClasspath) }
-    classpath(config.classpath)
-    classpath(config.dependencies.get().configuration)
-
-    (config as RunImpl).taskDependencies.forEach { dependsOn(it) }
+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),
     )
-
-    doFirst("Create working directory") { Files.createDirectories(workingDir.toPath()) }
-}
-
-/**
- * Add a new [Run.modSource] with a specific mod id.
- */
-fun Run.modSourceAs(sourceSet: SourceSet, mod: String) {
-    // NeoGradle requires a RunnableSourceSet to be present, so we inject it into other project's source sets.
-    val runnable = sourceSet.extensions.findByType<RunnableSourceSet>() ?: run {
-        val extension = sourceSet.extensions.create<RunnableSourceSet>(RunnableSourceSet.NAME, project)
-        extension.modIdentifier = mod
-        extension.modIdentifier.finalizeValueOnRead()
-        extension
-    }
-    if (runnable.modIdentifier.get() != mod) throw IllegalArgumentException("Multiple mod identifiers")
-
-    modSource(sourceSet)
 }

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

@@ -0,0 +1,120 @@
+// SPDX-FileCopyrightText: 2024 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package cc.tweaked.gradle
+
+import cc.tweaked.vanillaextract.core.util.MoreFiles
+import org.gradle.api.Action
+import org.gradle.api.DefaultTask
+import org.gradle.api.GradleException
+import org.gradle.api.file.*
+import org.gradle.api.model.ObjectFactory
+import org.gradle.api.provider.ListProperty
+import org.gradle.api.tasks.*
+import javax.inject.Inject
+
+/**
+ * Merge common files across multiple directories into one destination directory.
+ *
+ * This is intended for merging the generated resources from the Forge and Fabric projects. Files common between the two
+ * are written to the global [output] directory, while distinct files are written to the per-source
+ * [MergeTrees.Source.output] directory.
+ */
+abstract class MergeTrees : DefaultTask() {
+    /**
+     * A source directory to read from.
+     */
+    interface Source {
+        /**
+         * The folder contianing all input files.
+         */
+        @get:InputFiles
+        @get:PathSensitive(PathSensitivity.RELATIVE)
+        val input: ConfigurableFileTree
+
+        fun input(configure: Action<ConfigurableFileTree>) {
+            configure.execute(input)
+        }
+
+        /**
+         * The folder to write files unique to this folder to.
+         */
+        @get:OutputDirectory
+        val output: DirectoryProperty
+    }
+
+    /**
+     * The list of sources.
+     */
+    @get:Nested
+    abstract val sources: ListProperty<Source>
+
+    /**
+     * Add and configure a new source.
+     */
+    fun source(configure: Action<Source>) {
+        val instance = objectFactory.newInstance(Source::class.java)
+        configure.execute(instance)
+        instance.output.disallowChanges()
+        sources.add(instance)
+    }
+
+    /**
+     * The directory to write common files to.
+     */
+    @get:OutputDirectory
+    abstract val output: DirectoryProperty
+
+    @get:Inject
+    protected abstract val objectFactory: ObjectFactory
+
+    @get:Inject
+    protected abstract val fsOperations: FileSystemOperations
+
+    @TaskAction
+    fun run() {
+        val sources = this.sources.get()
+        if (sources.isEmpty()) throw GradleException("Cannot have an empty list of sources")
+
+        val files = mutableMapOf<String, SharedFile>()
+        for (source in sources) {
+            source.input.visit(
+                object : FileVisitor {
+                    override fun visitDir(dirDetails: FileVisitDetails) = Unit
+                    override fun visitFile(fileDetails: FileVisitDetails) {
+                        val path = fileDetails.file.toRelativeString(source.input.dir)
+                        val hash = MoreFiles.computeSha1(fileDetails.file.toPath())
+
+                        val existing = files[path]
+                        if (existing == null) {
+                            files[path] = SharedFile(hash, 1)
+                        } else if (existing.hash == hash) {
+                            existing.found++
+                        }
+                    }
+                },
+            )
+        }
+
+        val sharedFiles = files.entries.asSequence().filter { (_, v) -> v.found == sources.size }.map { (k, _) -> k }.toList()
+
+        // Copy shared files to the common directory
+        fsOperations.sync {
+            from(sources[0].input)
+            into(output)
+            include(sharedFiles)
+        }
+
+        // And all other files to their per-source directory
+        for (source in sources) {
+            fsOperations.sync {
+                from(source.input)
+                into(source.output)
+                exclude(sharedFiles)
+            }
+        }
+    }
+
+    class SharedFile(val hash: String, var found: Int)
+}

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

@@ -4,6 +4,7 @@
 
 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
@@ -64,6 +65,14 @@ abstract class ClientJavaExec : JavaExec() {
         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.
      */

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

@@ -46,7 +46,7 @@ abstract class NpmInstall : DefaultTask() {
     @TaskAction
     fun install() {
         project.exec {
-            commandLine("npm", "ci")
+            commandLine(ProcessHelpers.getExecutable("npm"), "ci")
             workingDir = projectRoot.get().asFile
         }
     }
@@ -59,6 +59,6 @@ abstract class NpmInstall : DefaultTask() {
 abstract class NpxExecToDir : ExecToDir() {
     init {
         dependsOn(NpmInstall.TASK_NAME)
-        executable = "npx"
+        executable = ProcessHelpers.getExecutable("npx")
     }
 }

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

@@ -9,6 +9,7 @@ import org.gradle.api.GradleException
 import java.io.BufferedReader
 import java.io.File
 import java.io.InputStreamReader
+import java.nio.charset.StandardCharsets
 
 internal object ProcessHelpers {
     fun startProcess(vararg command: String): Process {
@@ -34,7 +35,7 @@ internal object ProcessHelpers {
         val process = startProcess(*command)
         process.outputStream.close()
 
-        val out = BufferedReader(InputStreamReader(process.inputStream)).use { reader ->
+        val out = BufferedReader(InputStreamReader(process.inputStream, StandardCharsets.UTF_8)).use { reader ->
             reader.lines().filter { it.isNotEmpty() }.toList()
         }
         ProcessGroovyMethods.closeStreams(process)
@@ -46,6 +47,28 @@ internal object ProcessHelpers {
         val path = System.getenv("PATH") ?: return false
         return path.splitToSequence(File.pathSeparator).any { File(it, name).exists() }
     }
+
+    /**
+     * Search for an executable on the `PATH` if required.
+     *
+     * [Process]/[ProcessBuilder] does not handle all executable file extensions on Windows (such as `.com). When on
+     * Windows, this function searches `PATH` and `PATHEXT` for an executable matching [name].
+     */
+    fun getExecutable(name: String): String {
+        if (!System.getProperty("os.name").lowercase().contains("windows")) return name
+
+        val path = (System.getenv("PATH") ?: return name).split(File.pathSeparator)
+        val pathExt = (System.getenv("PATHEXT") ?: return name).split(File.pathSeparator)
+
+        for (pathEntry in path) {
+            for (ext in pathExt) {
+                val resolved = File(pathEntry, name + ext)
+                if (resolved.exists()) return resolved.getAbsolutePath()
+            }
+        }
+
+        return name
+    }
 }
 
 internal fun Process.waitForOrThrow(message: String) {

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

@@ -0,0 +1,51 @@
+// 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))
+}

config/gitpod/Dockerfile

@@ -1,12 +0,0 @@
-# SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
-#
-# SPDX-License-Identifier: MPL-2.0
-
-FROM gitpod/workspace-base
-
-USER gitpod
-
-RUN sudo apt-get -q update \
- && sudo apt-get install -yq openjdk-16-jdk python3-pip npm \
- && sudo pip3 install pre-commit \
- && sudo update-java-alternatives --set java-1.16.0-openjdk-amd64

doc/guides/speaker_audio.md

@@ -131,7 +131,7 @@ different.
 First, we require the dfpwm module and call [`cc.audio.dfpwm.make_decoder`] to construct a new decoder. This decoder
 accepts blocks of DFPWM data and converts it to a list of 8-bit amplitudes, which we can then play with our speaker.
 
-As mentioned above, [`speaker.playAudio`] accepts at most 128×1024 samples in one go. DFPMW uses a single bit for each
+As mentioned above, [`speaker.playAudio`] accepts at most 128×1024 samples in one go. DFPWM uses a single bit for each
 sample, which means we want to process our audio in chunks of 16×1024 bytes (16KiB). In order to do this, we use
 [`io.lines`], which provides a nice way to loop over chunks of a file. You can of course just use [`fs.open`] and
 [`fs.ReadHandle.read`] if you prefer.

gradle.properties

@@ -2,15 +2,15 @@
 #
 # SPDX-License-Identifier: MPL-2.0
 
-org.gradle.jvmargs=-Xmx3G
+org.gradle.jvmargs=-Xmx3G -Dfile.encoding=UTF-8
 org.gradle.parallel=true
 
 kotlin.stdlib.default.dependency=false
 kotlin.jvm.target.validation.mode=error
 
 # Mod properties
-isUnstable=true
-modVersion=1.110.2
+isUnstable=false
+modVersion=1.111.0
 
 # Minecraft properties: We want to configure this here so we can read it in settings.gradle
-mcVersion=1.20.4
+mcVersion=1.20.1

gradle/libs.versions.toml

@@ -7,26 +7,26 @@
 # 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 = "0.93.1+1.20.4"
-fabric-loader = "0.15.3"
-neoForge = "20.4.210"
-neoForgeSpi = "8.0.1"
+fabric-api = "0.86.1+1.20.1"
+fabric-loader = "0.14.21"
+forge = "47.1.0"
+forgeSpi = "7.0.1"
 mixin = "0.8.5"
-parchment = "2023.12.31"
-parchmentMc = "1.20.3"
-yarn = "1.20.4+build.3"
+parchment = "2023.08.20"
+parchmentMc = "1.20.1"
+yarn = "1.20.1+build.10"
 
 # Core dependencies (these versions are tied to the version Minecraft uses)
-fastutil = "8.5.12"
-guava = "32.1.2-jre"
-netty = "4.1.97.Final"
-slf4j = "2.0.7"
+fastutil = "8.5.9"
+guava = "31.1-jre"
+netty = "4.1.82.Final"
+slf4j = "2.0.1"
 
 # Core dependencies (independent of Minecraft)
 asm = "9.6"
 autoService = "1.1.1"
 checkerFramework = "3.42.0"
-cobalt = "0.9.2"
+cobalt = "0.9.3"
 commonsCli = "1.6.0"
 jetbrainsAnnotations = "24.1.0"
 jsr305 = "3.0.2"
@@ -36,14 +36,14 @@ kotlin-coroutines = "1.7.3"
 nightConfig = "3.6.7"
 
 # Minecraft mods
-emi = "1.0.30+1.20.4"
+emi = "1.0.8+1.20.1"
 fabricPermissions = "0.3.20230723"
-iris = "1.6.14+1.20.4"
-jei = "17.3.0.48"
-modmenu = "9.0.0"
+iris = "1.6.4+1.20"
+jei = "15.2.0.22"
+modmenu = "7.1.0"
 moreRed = "4.0.0.4"
 oculus = "1.2.5"
-rei = "14.0.688"
+rei = "12.0.626"
 rubidium = "0.6.1"
 sodium = "mc1.20-0.4.10"
 
@@ -56,22 +56,23 @@ jmh = "1.37"
 # Build tools
 cctJavadoc = "1.8.2"
 checkstyle = "10.14.1"
-curseForgeGradle = "1.1.18"
-errorProne-core = "2.23.0"
+curseForgeGradle = "1.0.14"
+errorProne-core = "2.27.0"
 errorProne-plugin = "3.1.0"
-fabric-loom = "1.5.7"
+fabric-loom = "1.6.7"
+forgeGradle = "6.0.21"
 githubRelease = "2.5.2"
 gradleVersions = "0.50.0"
 ideaExt = "1.1.7"
 illuaminate = "0.1.0-71-g378d86e"
+librarian = "1.+"
 lwjgl = "3.3.3"
-minotaur = "2.8.7"
-neoGradle = "7.0.100"
+minotaur = "2.+"
 nullAway = "0.10.25"
 spotless = "6.23.3"
 taskTree = "2.1.1"
-teavm = "0.10.0-SQUID.3"
-vanillaExtract = "0.1.2"
+teavm = "0.10.0-SQUID.4"
+vanillaExtract = "0.1.3"
 versionCatalogUpdate = "0.8.1"
 
 [libraries]
@@ -83,7 +84,7 @@ checkerFramework = { module = "org.checkerframework:checker-qual", version.ref =
 cobalt = { module = "cc.tweaked:cobalt", version.ref = "cobalt" }
 commonsCli = { module = "commons-cli:commons-cli", version.ref = "commonsCli" }
 fastutil = { module = "it.unimi.dsi:fastutil", version.ref = "fastutil" }
-neoForgeSpi = { module = "net.neoforged:neoforgespi", version.ref = "neoForgeSpi" }
+forgeSpi = { module = "net.minecraftforge:forgespi", version.ref = "forgeSpi" }
 guava = { module = "com.google.guava:guava", version.ref = "guava" }
 jetbrainsAnnotations = { module = "org.jetbrains:annotations", version.ref = "jetbrainsAnnotations" }
 jsr305 = { module = "com.google.code.findbugs:jsr305", version.ref = "jsr305" }
@@ -105,9 +106,9 @@ fabric-junit = { module = "net.fabricmc:fabric-loader-junit", version.ref = "fab
 fabricPermissions = { module = "me.lucko:fabric-permissions-api", version.ref = "fabricPermissions" }
 emi = { module = "dev.emi:emi-xplat-mojmap", version.ref = "emi" }
 iris = { module = "maven.modrinth:iris", version.ref = "iris" }
-jei-api = { module = "mezz.jei:jei-1.20.4-common-api", version.ref = "jei" }
-jei-fabric = { module = "mezz.jei:jei-1.20.4-fabric", version.ref = "jei" }
-jei-forge = { module = "mezz.jei:jei-1.20.4-forge", version.ref = "jei" }
+jei-api = { module = "mezz.jei:jei-1.20.1-common-api", version.ref = "jei" }
+jei-fabric = { module = "mezz.jei:jei-1.20.1-fabric", version.ref = "jei" }
+jei-forge = { module = "mezz.jei:jei-1.20.1-forge", version.ref = "jei" }
 mixin = { module = "org.spongepowered:mixin", version.ref = "mixin" }
 modmenu = { module = "com.terraformersmc:modmenu", version.ref = "modmenu" }
 moreRed = { module = "commoble.morered:morered-1.20.1", version.ref = "moreRed" }
@@ -145,13 +146,15 @@ errorProne-core = { module = "com.google.errorprone:error_prone_core", version.r
 errorProne-plugin = { module = "net.ltgt.gradle:gradle-errorprone-plugin", version.ref = "errorProne-plugin" }
 errorProne-testHelpers = { module = "com.google.errorprone:error_prone_test_helpers", version.ref = "errorProne-core" }
 fabric-loom = { module = "net.fabricmc:fabric-loom", version.ref = "fabric-loom" }
+forgeGradle = { module = "net.minecraftforge.gradle:ForgeGradle", version.ref = "forgeGradle" }
 ideaExt = { module = "gradle.plugin.org.jetbrains.gradle.plugin.idea-ext:gradle-idea-ext", version.ref = "ideaExt" }
 kotlin-plugin = { module = "org.jetbrains.kotlin:kotlin-gradle-plugin", version.ref = "kotlin" }
+librarian = { module = "org.parchmentmc:librarian", version.ref = "librarian" }
 minotaur = { module = "com.modrinth.minotaur:Minotaur", version.ref = "minotaur" }
-neoGradle-userdev = { module = "net.neoforged.gradle:userdev", version.ref = "neoGradle" }
 nullAway = { module = "com.uber.nullaway:nullaway", version.ref = "nullAway" }
 spotless = { module = "com.diffplug.spotless:spotless-plugin-gradle", version.ref = "spotless" }
 teavm-classlib = { module = "org.teavm:teavm-classlib", version.ref = "teavm" }
+teavm-core = { module = "org.teavm:teavm-core", version.ref = "teavm" }
 teavm-jso = { module = "org.teavm:teavm-jso", version.ref = "teavm" }
 teavm-jso-apis = { module = "org.teavm:teavm-jso-apis", version.ref = "teavm" }
 teavm-jso-impl = { module = "org.teavm:teavm-jso-impl", version.ref = "teavm" }
@@ -163,9 +166,11 @@ vanillaExtract = { module = "cc.tweaked.vanilla-extract:plugin", version.ref = "
 yarn = { module = "net.fabricmc:yarn", version.ref = "yarn" }
 
 [plugins]
+forgeGradle = { id = "net.minecraftforge.gradle", version.ref = "forgeGradle" }
 githubRelease = { id = "com.github.breadmoirai.github-release", version.ref = "githubRelease" }
 gradleVersions = { id = "com.github.ben-manes.versions", version.ref = "gradleVersions" }
 kotlin = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+librarian = { id = "org.parchmentmc.librarian.forgegradle", version.ref = "librarian" }
 taskTree = { id = "com.dorongold.task-tree", version.ref = "taskTree" }
 versionCatalogUpdate = { id = "nl.littlerobots.version-catalog-update", version.ref = "versionCatalogUpdate" }
 
@@ -176,7 +181,7 @@ kotlin = ["kotlin-stdlib", "kotlin-coroutines"]
 # Minecraft
 externalMods-common = ["jei-api", "nightConfig-core", "nightConfig-toml"]
 externalMods-forge-compile = ["moreRed", "oculus", "jei-api"]
-externalMods-forge-runtime = []
+externalMods-forge-runtime = ["jei-forge"]
 externalMods-fabric-compile = ["fabricPermissions", "iris", "jei-api", "rei-api", "rei-builtin"]
 externalMods-fabric-runtime = ["jei-fabric", "modmenu"]
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

projects/common-api/src/client/java/dan200/computercraft/api/client/ComputerCraftAPIClient.java

@@ -0,0 +1,43 @@
+// SPDX-FileCopyrightText: 2022 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package dan200.computercraft.api.client;
+
+import dan200.computercraft.api.client.turtle.TurtleUpgradeModeller;
+import dan200.computercraft.api.turtle.ITurtleUpgrade;
+import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
+import dan200.computercraft.impl.client.ComputerCraftAPIClientService;
+
+/**
+ * The public API for client-only code.
+ *
+ * @see dan200.computercraft.api.ComputerCraftAPI The main API
+ */
+public final class ComputerCraftAPIClient {
+    private ComputerCraftAPIClient() {
+    }
+
+    /**
+     * Register a {@link TurtleUpgradeModeller} for a class of turtle upgrades.
+     * <p>
+     * This may be called at any point after registry creation, though it is recommended to call it within your client
+     * setup step.
+     *
+     * @param serialiser The turtle upgrade serialiser.
+     * @param modeller   The upgrade modeller.
+     * @param <T>        The type of the turtle upgrade.
+     * @deprecated This method can lead to confusing load behaviour on Forge. Use
+     * {@code dan200.computercraft.api.client.FabricComputerCraftAPIClient#registerTurtleUpgradeModeller} on Fabric, or
+     * {@code dan200.computercraft.api.client.turtle.RegisterTurtleModellersEvent} on Forge.
+     */
+    @Deprecated(forRemoval = true)
+    public static <T extends ITurtleUpgrade> void registerTurtleUpgradeModeller(TurtleUpgradeSerialiser<T> serialiser, TurtleUpgradeModeller<T> modeller) {
+        // TODO(1.20.4): Remove this
+        getInstance().registerTurtleUpgradeModeller(serialiser, modeller);
+    }
+
+    private static ComputerCraftAPIClientService getInstance() {
+        return ComputerCraftAPIClientService.get();
+    }
+}

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

@@ -5,7 +5,7 @@
 package dan200.computercraft.api.client.turtle;
 
 import dan200.computercraft.api.turtle.ITurtleUpgrade;
-import dan200.computercraft.api.upgrades.UpgradeSerialiser;
+import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
 
 /**
  * A functional interface to register a {@link TurtleUpgradeModeller} for a class of turtle upgrades.
@@ -22,5 +22,5 @@ public interface RegisterTurtleUpgradeModeller {
      * @param modeller   The upgrade modeller.
      * @param <T>        The type of the turtle upgrade.
      */
-    <T extends ITurtleUpgrade> void register(UpgradeSerialiser<T> serialiser, TurtleUpgradeModeller<T> modeller);
+    <T extends ITurtleUpgrade> void register(TurtleUpgradeSerialiser<T> serialiser, TurtleUpgradeModeller<T> modeller);
 }

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

@@ -8,6 +8,7 @@ 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 net.minecraft.client.resources.model.ModelResourceLocation;
 import net.minecraft.client.resources.model.UnbakedModel;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.resources.ResourceLocation;
@@ -30,15 +31,30 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
     /**
      * Obtain the model to be used when rendering a turtle peripheral.
      * <p>
-     * When the current turtle is {@literal null}, this function should be constant for a given upgrade, side and data.
+     * 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.
+     * @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 side    Which side of the turtle (left or right) the upgrade resides on.
-     * @param data    Upgrade data instance for current turtle side.
      * @return The model that you wish to be used to render your upgrade.
      */
-    TransformedModel getModel(T upgrade, @Nullable ITurtleAccess turtle, TurtleSide side, CompoundTag data);
+    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.
@@ -69,6 +85,19 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
         return (TurtleUpgradeModeller<T>) TurtleUpgradeModellers.UPGRADE_ITEM;
     }
 
+    /**
+     * Construct a {@link TurtleUpgradeModeller} which has a single model for the left and right side.
+     *
+     * @param left  The model to use on the left.
+     * @param right The model to use on the right.
+     * @param <T>   The type of the turtle upgrade.
+     * @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);
+    }
+
     /**
      * Construct a {@link TurtleUpgradeModeller} which has a single model for the left and right side.
      *
@@ -80,7 +109,7 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
     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, CompoundTag data) {
+            public TransformedModel getModel(T upgrade, @Nullable ITurtleAccess turtle, TurtleSide side) {
                 return TransformedModel.of(side == TurtleSide.LEFT ? left : right);
             }
 

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

@@ -12,6 +12,7 @@ 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;
@@ -36,8 +37,16 @@ final class TurtleUpgradeModellers {
 
     private static final class UpgradeItemModeller implements TurtleUpgradeModeller<ITurtleUpgrade> {
         @Override
-        public TransformedModel getModel(ITurtleUpgrade upgrade, @Nullable ITurtleAccess turtle, TurtleSide side, CompoundTag data) {
-            var stack = upgrade.getUpgradeItem(data);
+        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);

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

@@ -4,34 +4,35 @@
 
 package dan200.computercraft.impl.client;
 
+import dan200.computercraft.api.client.ComputerCraftAPIClient;
 import dan200.computercraft.api.client.turtle.TurtleUpgradeModeller;
 import dan200.computercraft.api.turtle.ITurtleUpgrade;
-import dan200.computercraft.api.upgrades.UpgradeSerialiser;
+import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
 import dan200.computercraft.impl.Services;
 import org.jetbrains.annotations.ApiStatus;
 
 import javax.annotation.Nullable;
 
 /**
- * Backing interface for CC's client-side API.
+ * Backing interface for {@link ComputerCraftAPIClient}
  * <p>
  * Do <strong>NOT</strong> directly reference this class. It exists for internal use by the API.
  */
 @ApiStatus.Internal
-public interface FabricComputerCraftAPIClientService {
-    static FabricComputerCraftAPIClientService get() {
+public interface ComputerCraftAPIClientService {
+    static ComputerCraftAPIClientService get() {
         var instance = Instance.INSTANCE;
-        return instance == null ? Services.raise(FabricComputerCraftAPIClientService.class, Instance.ERROR) : instance;
+        return instance == null ? Services.raise(ComputerCraftAPIClientService.class, Instance.ERROR) : instance;
     }
 
-    <T extends ITurtleUpgrade> void registerTurtleUpgradeModeller(UpgradeSerialiser<T> serialiser, TurtleUpgradeModeller<T> modeller);
+    <T extends ITurtleUpgrade> void registerTurtleUpgradeModeller(TurtleUpgradeSerialiser<T> serialiser, TurtleUpgradeModeller<T> modeller);
 
     final class Instance {
-        static final @Nullable FabricComputerCraftAPIClientService INSTANCE;
+        static final @Nullable ComputerCraftAPIClientService INSTANCE;
         static final @Nullable Throwable ERROR;
 
         static {
-            var helper = Services.tryLoad(FabricComputerCraftAPIClientService.class);
+            var helper = Services.tryLoad(ComputerCraftAPIClientService.class);
             INSTANCE = helper.instance();
             ERROR = helper.error();
         }

projects/common-api/src/main/java/dan200/computercraft/api/network/wired/WiredNetwork.java

@@ -0,0 +1,92 @@
+// SPDX-FileCopyrightText: 2018 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package dan200.computercraft.api.network.wired;
+
+import dan200.computercraft.api.peripheral.IPeripheral;
+import org.jetbrains.annotations.ApiStatus;
+
+import java.util.Map;
+
+/**
+ * A wired network is composed of one of more {@link WiredNode}s, a set of connections between them, and a series
+ * of peripherals.
+ * <p>
+ * Networks from a connected graph. This means there is some path between all nodes on the network. Further more, if
+ * there is some path between two nodes then they must be on the same network. {@link WiredNetwork} will automatically
+ * handle the merging and splitting of networks (and thus changing of available nodes and peripherals) as connections
+ * change.
+ * <p>
+ * This does mean one can not rely on the network remaining consistent between subsequent operations. Consequently,
+ * it is generally preferred to use the methods provided by {@link WiredNode}.
+ *
+ * @see WiredNode#getNetwork()
+ */
+@ApiStatus.NonExtendable
+public interface WiredNetwork {
+    /**
+     * Create a connection between two nodes.
+     * <p>
+     * This should only be used on the server thread.
+     *
+     * @param left  The first node to connect
+     * @param right The second node to connect
+     * @return {@code true} if a connection was created or {@code false} if the connection already exists.
+     * @throws IllegalStateException    If neither node is on the network.
+     * @throws IllegalArgumentException If {@code left} and {@code right} are equal.
+     * @see WiredNode#connectTo(WiredNode)
+     * @see WiredNetwork#connect(WiredNode, WiredNode)
+     * @deprecated Use {@link WiredNode#connectTo(WiredNode)}
+     */
+    @Deprecated
+    boolean connect(WiredNode left, WiredNode right);
+
+    /**
+     * Destroy a connection between this node and another.
+     * <p>
+     * This should only be used on the server thread.
+     *
+     * @param left  The first node in the connection.
+     * @param right The second node in the connection.
+     * @return {@code true} if a connection was destroyed or {@code false} if no connection exists.
+     * @throws IllegalArgumentException If either node is not on the network.
+     * @throws IllegalArgumentException If {@code left} and {@code right} are equal.
+     * @see WiredNode#disconnectFrom(WiredNode)
+     * @see WiredNetwork#connect(WiredNode, WiredNode)
+     * @deprecated Use {@link WiredNode#disconnectFrom(WiredNode)}
+     */
+    @Deprecated
+    boolean disconnect(WiredNode left, WiredNode right);
+
+    /**
+     * Sever all connections this node has, removing it from this network.
+     * <p>
+     * This should only be used on the server thread. You should only call this on nodes
+     * that your network element owns.
+     *
+     * @param node The node to remove
+     * @return Whether this node was removed from the network. One cannot remove a node from a network where it is the
+     * only element.
+     * @throws IllegalArgumentException If the node is not in the network.
+     * @see WiredNode#remove()
+     * @deprecated Use {@link WiredNode#remove()}
+     */
+    @Deprecated
+    boolean remove(WiredNode node);
+
+    /**
+     * Update the peripherals a node provides.
+     * <p>
+     * This should only be used on the server thread. You should only call this on nodes
+     * that your network element owns.
+     *
+     * @param node        The node to attach peripherals for.
+     * @param peripherals The new peripherals for this node.
+     * @throws IllegalArgumentException If the node is not in the network.
+     * @see WiredNode#updatePeripherals(Map)
+     * @deprecated Use {@link WiredNode#updatePeripherals(Map)}
+     */
+    @Deprecated
+    void updatePeripherals(WiredNode node, Map<String, IPeripheral> peripherals);
+}

projects/common-api/src/main/java/dan200/computercraft/api/network/wired/WiredNode.java

@@ -11,7 +11,7 @@ import org.jetbrains.annotations.ApiStatus;
 import java.util.Map;
 
 /**
- * A single node on a wired network.
+ * Wired nodes act as a layer between {@link WiredElement}s and {@link WiredNetwork}s.
  * <p>
  * Firstly, a node acts as a packet network, capable of sending and receiving modem messages to connected nodes. These
  * methods may be safely used on any thread.
@@ -32,6 +32,18 @@ public interface WiredNode extends PacketNetwork {
      */
     WiredElement getElement();
 
+    /**
+     * The network this node is currently connected to. Note that this may change
+     * after any network operation, so it should not be cached.
+     * <p>
+     * This should only be used on the server thread.
+     *
+     * @return This node's network.
+     * @deprecated Use the connect/disconnect/remove methods on {@link WiredNode}.
+     */
+    @Deprecated
+    WiredNetwork getNetwork();
+
     /**
      * Create a connection from this node to another.
      * <p>

projects/common-api/src/main/java/dan200/computercraft/api/network/wired/WiredSender.java

@@ -8,12 +8,10 @@ import dan200.computercraft.api.network.PacketSender;
 
 
 /**
- * An object on a wired network capable of sending packets.
+ * An object on a {@link WiredNetwork} capable of sending packets.
  * <p>
  * Unlike a regular {@link PacketSender}, this must be associated with the node you are attempting to
  * to send the packet from.
- *
- * @see WiredElement
  */
 public interface WiredSender extends PacketSender {
     /**

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

@@ -4,12 +4,15 @@
 
 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;
 
 /**
  * Wrapper class for pocket computers.
@@ -87,4 +90,13 @@ public interface IPocketAccess {
      * entity} changes.
      */
     void invalidatePeripheral();
+
+    /**
+     * 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/IPocketUpgrade.java

@@ -6,10 +6,6 @@ package dan200.computercraft.api.pocket;
 
 import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.api.upgrades.UpgradeBase;
-import dan200.computercraft.api.upgrades.UpgradeSerialiser;
-import dan200.computercraft.impl.ComputerCraftAPIService;
-import net.minecraft.core.Registry;
-import net.minecraft.resources.ResourceKey;
 import net.minecraft.world.level.Level;
 
 import javax.annotation.Nullable;
@@ -17,46 +13,16 @@ import javax.annotation.Nullable;
 /**
  * A peripheral which can be equipped to the back side of a pocket computer.
  * <p>
- * Pocket upgrades are defined in two stages. First, one creates a {@link IPocketUpgrade} subclass and corresponding
- * {@link UpgradeSerialiser} instance, which are then registered in a registry.
+ * Pocket upgrades are defined in two stages. First, on creates a {@link IPocketUpgrade} subclass and corresponding
+ * {@link PocketUpgradeSerialiser} instance, which are then registered in a Forge registry.
  * <p>
  * You then write a JSON file in your mod's {@literal data/} folder. This is then parsed when the world is loaded, and
- * the upgrade automatically registered. It is recommended this is done via {@linkplain PocketUpgradeDataProvider data
- * generators}.
+ * the upgrade registered internally. See the documentation in {@link PocketUpgradeSerialiser} for details on this process
+ * and where files should be located.
  *
- * <h2>Example</h2>
- * <pre>{@code
- * // We use Forge's DeferredRegister to register our serialiser. Fabric mods may register their serialiser directly.
- * static final DeferredRegister<UpgradeSerialiser<? extends IPocketUpgrade>> SERIALISERS = DeferredRegister.create(IPocketUpgrade.serialiserRegistryKey(), "my_mod");
- *
- * // Register a new upgrade serialiser called "my_upgrade".
- * public static final RegistryObject<UpgradeSerialiser<MyUpgrade>> MY_UPGRADE =
- *     SERIALISERS.register("my_upgrade", () -> UpgradeSerialiser.simple(MyUpgrade::new));
- *
- * // Then in your constructor
- * SERIALISERS.register(bus);
- * }</pre>
- * <p>
- * We can then define a new upgrade using JSON by placing the following in
- * {@code data/<my_mod>/computercraft/pocket_upgrades/<my_upgrade_id>.json}.
- * <pre>{@code
- * {
- *     "type": my_mod:my_upgrade",
- * }
- * }</pre>
- * <p>
- * {@link PocketUpgradeDataProvider} provides a data provider to aid with generating these JSON files.
+ * @see PocketUpgradeSerialiser For how to register a pocket computer upgrade.
  */
 public interface IPocketUpgrade extends UpgradeBase {
-    /**
-     * The registry key for upgrade serialisers.
-     *
-     * @return The registry key.
-     */
-    static ResourceKey<Registry<UpgradeSerialiser<? extends IPocketUpgrade>>> serialiserRegistryKey() {
-        return ComputerCraftAPIService.get().pocketUpgradeRegistryId();
-    }
-
     /**
      * Creates a peripheral for the pocket computer.
      * <p>

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

@@ -5,7 +5,6 @@
 package dan200.computercraft.api.pocket;
 
 import dan200.computercraft.api.upgrades.UpgradeDataProvider;
-import dan200.computercraft.api.upgrades.UpgradeSerialiser;
 import net.minecraft.data.DataGenerator;
 import net.minecraft.data.PackOutput;
 
@@ -18,11 +17,10 @@ import java.util.function.Consumer;
  * {@link #addUpgrades(Consumer)} function, construct each upgrade, and pass them off to the provided consumer to
  * generate them.
  *
- * @see IPocketUpgrade
- * @see UpgradeSerialiser
+ * @see PocketUpgradeSerialiser
  */
-public abstract class PocketUpgradeDataProvider extends UpgradeDataProvider<IPocketUpgrade> {
+public abstract class PocketUpgradeDataProvider extends UpgradeDataProvider<IPocketUpgrade, PocketUpgradeSerialiser<?>> {
     public PocketUpgradeDataProvider(PackOutput output) {
-        super(output, "Pocket Computer Upgrades", "computercraft/pocket_upgrades", IPocketUpgrade.serialiserRegistryKey());
+        super(output, "Pocket Computer Upgrades", "computercraft/pocket_upgrades", PocketUpgradeSerialiser.registryId());
     }
 }

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

@@ -0,0 +1,79 @@
+// SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package dan200.computercraft.api.pocket;
+
+import dan200.computercraft.api.upgrades.UpgradeBase;
+import dan200.computercraft.api.upgrades.UpgradeSerialiser;
+import dan200.computercraft.impl.ComputerCraftAPIService;
+import dan200.computercraft.impl.upgrades.SerialiserWithCraftingItem;
+import dan200.computercraft.impl.upgrades.SimpleSerialiser;
+import net.minecraft.core.Registry;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.crafting.SimpleCraftingRecipeSerializer;
+
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
+/**
+ * Reads a {@link IPocketUpgrade} from disk and reads/writes it to a network packet.
+ * <p>
+ * This follows the same format as {@link dan200.computercraft.api.turtle.TurtleUpgradeSerialiser} - consult the
+ * documentation there for more information.
+ *
+ * @param <T> The type of pocket computer upgrade this is responsible for serialising.
+ * @see IPocketUpgrade
+ * @see PocketUpgradeDataProvider
+ */
+public interface PocketUpgradeSerialiser<T extends IPocketUpgrade> extends UpgradeSerialiser<T> {
+    /**
+     * The ID for the associated registry.
+     *
+     * @return The registry key.
+     */
+    static ResourceKey<Registry<PocketUpgradeSerialiser<?>>> registryId() {
+        return ComputerCraftAPIService.get().pocketUpgradeRegistryId();
+    }
+
+    /**
+     * Create an upgrade serialiser for a simple upgrade. This is similar to a {@link SimpleCraftingRecipeSerializer},
+     * but for upgrades.
+     * <p>
+     * If you might want to vary the item, it's suggested you use {@link #simpleWithCustomItem(BiFunction)} instead.
+     *
+     * @param factory Generate a new upgrade with a specific ID.
+     * @param <T>     The type of the generated upgrade.
+     * @return The serialiser for this upgrade
+     */
+    static <T extends IPocketUpgrade> PocketUpgradeSerialiser<T> simple(Function<ResourceLocation, T> factory) {
+        final class Impl extends SimpleSerialiser<T> implements PocketUpgradeSerialiser<T> {
+            private Impl(Function<ResourceLocation, T> constructor) {
+                super(constructor);
+            }
+        }
+
+        return new Impl(factory);
+    }
+
+    /**
+     * Create an upgrade serialiser for a simple upgrade whose crafting item can be specified.
+     *
+     * @param factory Generate a new upgrade with a specific ID and crafting item. The returned upgrade's
+     *                {@link UpgradeBase#getCraftingItem()} <strong>MUST</strong> equal the provided item.
+     * @param <T>     The type of the generated upgrade.
+     * @return The serialiser for this upgrade.
+     * @see #simple(Function)  For upgrades whose crafting stack should not vary.
+     */
+    static <T extends IPocketUpgrade> PocketUpgradeSerialiser<T> simpleWithCustomItem(BiFunction<ResourceLocation, ItemStack, T> factory) {
+        final class Impl extends SerialiserWithCraftingItem<T> implements PocketUpgradeSerialiser<T> {
+            private Impl(BiFunction<ResourceLocation, ItemStack, T> factory) {
+                super(factory);
+            }
+        }
+
+        return new Impl(factory);
+    }
+}

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

@@ -6,12 +6,8 @@ package dan200.computercraft.api.turtle;
 
 import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.api.upgrades.UpgradeBase;
-import dan200.computercraft.api.upgrades.UpgradeSerialiser;
-import dan200.computercraft.impl.ComputerCraftAPIService;
 import net.minecraft.core.Direction;
-import net.minecraft.core.Registry;
 import net.minecraft.nbt.CompoundTag;
-import net.minecraft.resources.ResourceKey;
 
 import javax.annotation.Nullable;
 
@@ -20,54 +16,15 @@ import javax.annotation.Nullable;
  * peripheral.
  * <p>
  * Turtle upgrades are defined in two stages. First, one creates a {@link ITurtleUpgrade} subclass and corresponding
- * {@link UpgradeSerialiser} instance, which are then registered in a registry.
+ * {@link TurtleUpgradeSerialiser} instance, which are then registered in a Forge registry.
  * <p>
  * You then write a JSON file in your mod's {@literal data/} folder. This is then parsed when the world is loaded, and
- * the upgrade automatically registered. It is recommended this is done via {@linkplain TurtleUpgradeDataProvider data
- * generators}.
+ * the upgrade registered internally. See the documentation in {@link TurtleUpgradeSerialiser} for details on this process
+ * and where files should be located.
  *
- * <h2>Example</h2>
- * <pre>{@code
- * // We use Forge's DeferredRegister to register our serialiser. Fabric mods may register their serialiser directly.
- * static final DeferredRegister<UpgradeSerialiser<? extends ITurtleUpgrade>> SERIALISERS = DeferredRegister.create(ITurtleUpgrade.serialiserRegistryKey(), "my_mod");
- *
- * // Register a new upgrade serialiser called "my_upgrade".
- * public static final RegistryObject<UpgradeSerialiser<MyUpgrade>> MY_UPGRADE =
- *     SERIALISERS.register( "my_upgrade", () -> TurtleUpgradeSerialiser.simple( MyUpgrade::new ) );
- *
- * // Then in your constructor
- * SERIALISERS.register( bus );
- * }</pre>
- * <p>
- * We can then define a new upgrade using JSON by placing the following in
- * {@literal data/<my_mod>/computercraft/turtle_upgrades/<my_upgrade_id>.json}}.
- *
- * <pre>{@code
- * {
- *     "type": my_mod:my_upgrade",
- * }
- * }</pre>
- * <p>
- * {@link TurtleUpgradeDataProvider} provides a data provider to aid with generating these JSON files.
- * <p>
- * Finally, we need to register a model for our upgrade, see
- * {@link dan200.computercraft.api.client.turtle.TurtleUpgradeModeller} for more information.
- *
- * <pre>{@code
- * // Register our model inside FMLClientSetupEvent
- * ComputerCraftAPIClient.registerTurtleUpgradeModeller(MY_UPGRADE.get(), TurtleUpgradeModeller.flatItem())
- * }</pre>
+ * @see TurtleUpgradeSerialiser For how to register a turtle upgrade.
  */
 public interface ITurtleUpgrade extends UpgradeBase {
-    /**
-     * The registry key for upgrade serialisers.
-     *
-     * @return The registry key.
-     */
-    static ResourceKey<Registry<UpgradeSerialiser<? extends ITurtleUpgrade>>> serialiserRegistryKey() {
-        return ComputerCraftAPIService.get().turtleUpgradeRegistryId();
-    }
-
     /**
      * Return whether this turtle adds a tool or a peripheral to the turtle.
      *

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

@@ -7,9 +7,8 @@ package dan200.computercraft.api.turtle;
 import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.ComputerCraftTags;
 import dan200.computercraft.api.upgrades.UpgradeDataProvider;
-import dan200.computercraft.api.upgrades.UpgradeSerialiser;
-import dan200.computercraft.impl.RegistryHelper;
-import net.minecraft.core.registries.BuiltInRegistries;
+import dan200.computercraft.impl.PlatformHelper;
+import net.minecraft.core.registries.Registries;
 import net.minecraft.data.DataGenerator;
 import net.minecraft.data.PackOutput;
 import net.minecraft.resources.ResourceLocation;
@@ -30,13 +29,13 @@ import java.util.function.Consumer;
  * {@link #addUpgrades(Consumer)} function, construct each upgrade, and pass them off to the provided consumer to
  * generate them.
  *
- * @see ITurtleUpgrade
+ * @see TurtleUpgradeSerialiser
  */
-public abstract class TurtleUpgradeDataProvider extends UpgradeDataProvider<ITurtleUpgrade> {
+public abstract class TurtleUpgradeDataProvider extends UpgradeDataProvider<ITurtleUpgrade, TurtleUpgradeSerialiser<?>> {
     private static final ResourceLocation TOOL_ID = new ResourceLocation(ComputerCraftAPI.MOD_ID, "tool");
 
     public TurtleUpgradeDataProvider(PackOutput output) {
-        super(output, "Turtle Upgrades", "computercraft/turtle_upgrades", ITurtleUpgrade.serialiserRegistryKey());
+        super(output, "Turtle Upgrades", "computercraft/turtle_upgrades", TurtleUpgradeSerialiser.registryId());
     }
 
     /**
@@ -58,7 +57,7 @@ public abstract class TurtleUpgradeDataProvider extends UpgradeDataProvider<ITur
      */
     public static class ToolBuilder {
         private final ResourceLocation id;
-        private final UpgradeSerialiser<? extends ITurtleUpgrade> serialiser;
+        private final TurtleUpgradeSerialiser<?> serialiser;
         private final Item toolItem;
         private @Nullable String adjective;
         private @Nullable Item craftingItem;
@@ -67,7 +66,7 @@ public abstract class TurtleUpgradeDataProvider extends UpgradeDataProvider<ITur
         private boolean allowEnchantments = false;
         private TurtleToolDurability consumeDurability = TurtleToolDurability.NEVER;
 
-        ToolBuilder(ResourceLocation id, UpgradeSerialiser<? extends ITurtleUpgrade> serialiser, Item toolItem) {
+        ToolBuilder(ResourceLocation id, TurtleUpgradeSerialiser<?> serialiser, Item toolItem) {
             this.id = id;
             this.serialiser = serialiser;
             this.toolItem = toolItem;
@@ -150,12 +149,12 @@ public abstract class TurtleUpgradeDataProvider extends UpgradeDataProvider<ITur
          *
          * @param add The callback given to {@link #addUpgrades(Consumer)}.
          */
-        public void add(Consumer<Upgrade<UpgradeSerialiser<? extends ITurtleUpgrade>>> add) {
+        public void add(Consumer<Upgrade<TurtleUpgradeSerialiser<?>>> add) {
             add.accept(new Upgrade<>(id, serialiser, s -> {
-                s.addProperty("item", RegistryHelper.getKeyOrThrow(BuiltInRegistries.ITEM, toolItem).toString());
+                s.addProperty("item", PlatformHelper.get().getRegistryKey(Registries.ITEM, toolItem).toString());
                 if (adjective != null) s.addProperty("adjective", adjective);
                 if (craftingItem != null) {
-                    s.addProperty("craftItem", RegistryHelper.getKeyOrThrow(BuiltInRegistries.ITEM, craftingItem).toString());
+                    s.addProperty("craftItem", PlatformHelper.get().getRegistryKey(Registries.ITEM, craftingItem).toString());
                 }
                 if (damageMultiplier != null) s.addProperty("damageMultiplier", damageMultiplier);
                 if (breakable != null) s.addProperty("breakable", breakable.location().toString());

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

@@ -0,0 +1,109 @@
+// SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package dan200.computercraft.api.turtle;
+
+import dan200.computercraft.api.upgrades.UpgradeBase;
+import dan200.computercraft.api.upgrades.UpgradeSerialiser;
+import dan200.computercraft.impl.ComputerCraftAPIService;
+import dan200.computercraft.impl.upgrades.SerialiserWithCraftingItem;
+import dan200.computercraft.impl.upgrades.SimpleSerialiser;
+import net.minecraft.core.Registry;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.crafting.RecipeSerializer;
+import net.minecraft.world.item.crafting.SimpleCraftingRecipeSerializer;
+
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
+/**
+ * Reads a {@link ITurtleUpgrade} from disk and reads/writes it to a network packet.
+ * <p>
+ * These should be registered in a {@link Registry} while the game is loading, much like {@link RecipeSerializer}s.
+ * <p>
+ * If your turtle upgrade doesn't have any associated configurable parameters (like most upgrades), you can use
+ * {@link #simple(Function)} or {@link #simpleWithCustomItem(BiFunction)} to create a basic upgrade serialiser.
+ *
+ * <h2>Example (Forge)</h2>
+ * <pre>{@code
+ * static final DeferredRegister<TurtleUpgradeSerialiser<?>> SERIALISERS = DeferredRegister.create( TurtleUpgradeSerialiser.TYPE, "my_mod" );
+ *
+ * // Register a new upgrade serialiser called "my_upgrade".
+ * public static final RegistryObject<TurtleUpgradeSerialiser<MyUpgrade>> MY_UPGRADE =
+ *     SERIALISERS.register( "my_upgrade", () -> TurtleUpgradeSerialiser.simple( MyUpgrade::new ) );
+ *
+ * // Then in your constructor
+ * SERIALISERS.register( bus );
+ * }</pre>
+ * <p>
+ * We can then define a new upgrade using JSON by placing the following in
+ * {@literal data/<my_mod>/computercraft/turtle_upgrades/<my_upgrade_id>.json}}.
+ *
+ * <pre>{@code
+ * {
+ *     "type": my_mod:my_upgrade",
+ * }
+ * }</pre>
+ * <p>
+ * Finally, we need to register a model for our upgrade. The way to do this varies on mod loader, see
+ * {@link dan200.computercraft.api.client.turtle.TurtleUpgradeModeller} for more information.
+ * <p>
+ * {@link TurtleUpgradeDataProvider} provides a data provider to aid with generating these JSON files.
+ *
+ * @param <T> The type of turtle upgrade this is responsible for serialising.
+ * @see ITurtleUpgrade
+ * @see TurtleUpgradeDataProvider
+ * @see dan200.computercraft.api.client.turtle.TurtleUpgradeModeller
+ */
+public interface TurtleUpgradeSerialiser<T extends ITurtleUpgrade> extends UpgradeSerialiser<T> {
+    /**
+     * The ID for the associated registry.
+     *
+     * @return The registry key.
+     */
+    static ResourceKey<Registry<TurtleUpgradeSerialiser<?>>> registryId() {
+        return ComputerCraftAPIService.get().turtleUpgradeRegistryId();
+    }
+
+    /**
+     * Create an upgrade serialiser for a simple upgrade. This is similar to a {@link SimpleCraftingRecipeSerializer},
+     * but for upgrades.
+     * <p>
+     * If you might want to vary the item, it's suggested you use {@link #simpleWithCustomItem(BiFunction)} instead.
+     *
+     * @param factory Generate a new upgrade with a specific ID.
+     * @param <T>     The type of the generated upgrade.
+     * @return The serialiser for this upgrade
+     */
+    static <T extends ITurtleUpgrade> TurtleUpgradeSerialiser<T> simple(Function<ResourceLocation, T> factory) {
+        final class Impl extends SimpleSerialiser<T> implements TurtleUpgradeSerialiser<T> {
+            private Impl(Function<ResourceLocation, T> constructor) {
+                super(constructor);
+            }
+        }
+
+        return new Impl(factory);
+    }
+
+    /**
+     * Create an upgrade serialiser for a simple upgrade whose crafting item can be specified.
+     *
+     * @param factory Generate a new upgrade with a specific ID and crafting item. The returned upgrade's
+     *                {@link UpgradeBase#getCraftingItem()} <strong>MUST</strong> equal the provided item.
+     * @param <T>     The type of the generated upgrade.
+     * @return The serialiser for this upgrade.
+     * @see #simple(Function)  For upgrades whose crafting stack should not vary.
+     */
+    static <T extends ITurtleUpgrade> TurtleUpgradeSerialiser<T> simpleWithCustomItem(BiFunction<ResourceLocation, ItemStack, T> factory) {
+        final class Impl extends SerialiserWithCraftingItem<T> implements TurtleUpgradeSerialiser<T> {
+            private Impl(BiFunction<ResourceLocation, ItemStack, T> factory) {
+                super(factory);
+            }
+        }
+
+        return new Impl(factory);
+    }
+}

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

@@ -9,6 +9,7 @@ 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;
@@ -99,7 +100,7 @@ public interface UpgradeBase {
      * The default check requires that any non-capability NBT is exactly the same as the
      * crafting item, but this may be relaxed for your upgrade.
      * <p>
-     * This is based on {@code net.neoforged.common.crafting.StrictNBTIngredient}'s check.
+     * This is based on {@code net.minecraftforge.common.crafting.StrictNBTIngredient}'s check.
      *
      * @param stack The stack to check. This is guaranteed to be non-empty and have the same item as
      *              {@link #getCraftingItem()}.
@@ -110,12 +111,12 @@ public interface UpgradeBase {
 
         // A more expanded form of ItemStack.areShareTagsEqual, but allowing an empty tag to be equal to a
         // null one.
-        var tag = stack.getTag();
-        var craftingTag = crafting.getTag();
-        if (tag == craftingTag) return true;
-        if (tag == null) return Objects.requireNonNull(craftingTag).isEmpty();
-        if (craftingTag == null) return tag.isEmpty();
-        return tag.equals(craftingTag);
+        var shareTag = PlatformHelper.get().getShareTag(stack);
+        var craftingShareTag = PlatformHelper.get().getShareTag(crafting);
+        if (shareTag == craftingShareTag) return true;
+        if (shareTag == null) return Objects.requireNonNull(craftingShareTag).isEmpty();
+        if (craftingShareTag == null) return shareTag.isEmpty();
+        return shareTag.equals(craftingShareTag);
     }
 
     /**

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

@@ -6,20 +6,19 @@ package dan200.computercraft.api.upgrades;
 
 import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
+import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
 import dan200.computercraft.impl.PlatformHelper;
-import dan200.computercraft.impl.RegistryHelper;
 import dan200.computercraft.impl.upgrades.SerialiserWithCraftingItem;
 import dan200.computercraft.impl.upgrades.SimpleSerialiser;
 import net.minecraft.Util;
 import net.minecraft.core.Registry;
-import net.minecraft.core.registries.BuiltInRegistries;
+import net.minecraft.core.registries.Registries;
 import net.minecraft.data.CachedOutput;
 import net.minecraft.data.DataProvider;
 import net.minecraft.data.PackOutput;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.item.Item;
-import org.jetbrains.annotations.ApiStatus;
 
 import javax.annotation.Nullable;
 import java.util.*;
@@ -32,31 +31,31 @@ import java.util.function.Function;
  * the other subclasses.
  *
  * @param <T> The base class of upgrades.
+ * @param <R> The upgrade serialiser to register for.
  */
-public abstract class UpgradeDataProvider<T extends UpgradeBase> implements DataProvider {
+public abstract class UpgradeDataProvider<T extends UpgradeBase, R extends UpgradeSerialiser<? extends T>> implements DataProvider {
     private final PackOutput output;
     private final String name;
     private final String folder;
-    private final Registry<UpgradeSerialiser<? extends T>> registry;
+    private final ResourceKey<Registry<R>> registry;
 
     private @Nullable List<T> upgrades;
 
-    @ApiStatus.Internal
-    protected UpgradeDataProvider(PackOutput output, String name, String folder, ResourceKey<Registry<UpgradeSerialiser<? extends T>>> registry) {
+    protected UpgradeDataProvider(PackOutput output, String name, String folder, ResourceKey<Registry<R>> registry) {
         this.output = output;
         this.name = name;
         this.folder = folder;
-        this.registry = RegistryHelper.getRegistry(registry);
+        this.registry = registry;
     }
 
     /**
-     * Register an upgrade using a {@linkplain UpgradeSerialiser#simple(Function) "simple" serialiser}.
+     * Register an upgrade using a "simple" serialiser (e.g. {@link TurtleUpgradeSerialiser#simple(Function)}).
      *
      * @param id         The ID of the upgrade to create.
      * @param serialiser The simple serialiser.
      * @return The constructed upgrade, ready to be passed off to {@link #addUpgrades(Consumer)}'s consumer.
      */
-    public final Upgrade<UpgradeSerialiser<? extends T>> simple(ResourceLocation id, UpgradeSerialiser<? extends T> serialiser) {
+    public final Upgrade<R> simple(ResourceLocation id, R serialiser) {
         if (!(serialiser instanceof SimpleSerialiser)) {
             throw new IllegalStateException(serialiser + " must be a simple() seriaiser.");
         }
@@ -66,20 +65,20 @@ public abstract class UpgradeDataProvider<T extends UpgradeBase> implements Data
     }
 
     /**
-     * Register an upgrade using a {@linkplain UpgradeSerialiser#simple(Function) simple serialiser}.
+     * Register an upgrade using a "simple" serialiser (e.g. {@link TurtleUpgradeSerialiser#simple(Function)}).
      *
      * @param id         The ID of the upgrade to create.
      * @param serialiser The simple serialiser.
      * @param item       The crafting upgrade for this item.
      * @return The constructed upgrade, ready to be passed off to {@link #addUpgrades(Consumer)}'s consumer.
      */
-    public final Upgrade<UpgradeSerialiser<? extends T>> simpleWithCustomItem(ResourceLocation id, UpgradeSerialiser<? extends T> serialiser, Item item) {
+    public final Upgrade<R> simpleWithCustomItem(ResourceLocation id, R serialiser, Item item) {
         if (!(serialiser instanceof SerialiserWithCraftingItem)) {
             throw new IllegalStateException(serialiser + " must be a simpleWithCustomItem() serialiser.");
         }
 
         return new Upgrade<>(id, serialiser, s ->
-            s.addProperty("item", RegistryHelper.getKeyOrThrow(BuiltInRegistries.ITEM, item).toString())
+            s.addProperty("item", PlatformHelper.get().getRegistryKey(Registries.ITEM, item).toString())
         );
     }
 
@@ -95,7 +94,7 @@ public abstract class UpgradeDataProvider<T extends UpgradeBase> implements Data
      *
      * @param addUpgrade A callback used to register an upgrade.
      */
-    protected abstract void addUpgrades(Consumer<Upgrade<UpgradeSerialiser<? extends T>>> addUpgrade);
+    protected abstract void addUpgrades(Consumer<Upgrade<R>> addUpgrade);
 
     @Override
     public CompletableFuture<?> run(CachedOutput cache) {
@@ -108,7 +107,7 @@ public abstract class UpgradeDataProvider<T extends UpgradeBase> implements Data
             if (!seen.add(upgrade.id())) throw new IllegalStateException("Duplicate upgrade " + upgrade.id());
 
             var json = new JsonObject();
-            json.addProperty("type", RegistryHelper.getKeyOrThrow(registry, upgrade.serialiser()).toString());
+            json.addProperty("type", PlatformHelper.get().getRegistryKey(registry, upgrade.serialiser()).toString());
             upgrade.serialise().accept(json);
 
             futures.add(DataProvider.saveStable(cache, json, base.resolve(upgrade.id().getNamespace() + "/" + folder + "/" + upgrade.id().getPath() + ".json")));
@@ -130,9 +129,9 @@ public abstract class UpgradeDataProvider<T extends UpgradeBase> implements Data
         return name;
     }
 
-    public final UpgradeSerialiser<? extends T> existingSerialiser(ResourceLocation id) {
-        var result = registry.get(id);
-        if (result == null) throw new IllegalArgumentException("No such serialiser " + id);
+    public final R existingSerialiser(ResourceLocation id) {
+        var result = PlatformHelper.get().getRegistryObject(registry, id);
+        if (result == null) throw new IllegalArgumentException("No such serialiser " + registry);
         return result;
     }
 

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

@@ -5,40 +5,21 @@
 package dan200.computercraft.api.upgrades;
 
 import com.google.gson.JsonObject;
-import dan200.computercraft.api.pocket.IPocketUpgrade;
-import dan200.computercraft.api.pocket.PocketUpgradeDataProvider;
-import dan200.computercraft.api.turtle.ITurtleUpgrade;
-import dan200.computercraft.api.turtle.TurtleUpgradeDataProvider;
-import dan200.computercraft.impl.upgrades.SerialiserWithCraftingItem;
-import dan200.computercraft.impl.upgrades.SimpleSerialiser;
-import net.minecraft.core.Registry;
+import dan200.computercraft.api.pocket.PocketUpgradeSerialiser;
+import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.resources.ResourceLocation;
-import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.item.crafting.RecipeSerializer;
-import net.minecraft.world.item.crafting.SimpleCraftingRecipeSerializer;
 
-import java.util.function.BiFunction;
-import java.util.function.Function;
 
 /**
- * A serialiser for {@link ITurtleUpgrade} or {@link IPocketUpgrade}s.
+ * Base interface for upgrade serialisers. This should generally not be implemented directly, instead implementing one
+ * of {@link TurtleUpgradeSerialiser} or {@link PocketUpgradeSerialiser}.
  * <p>
- * These should be registered in a {@link Registry} while the game is loading, much like {@link RecipeSerializer}s.
- * <p>
- * This interface is very similar to {@link RecipeSerializer}; each serialiser should correspond to a specific upgrade
- * class. Upgrades are then read from JSON files in datapacks, allowing multiple instances of the upgrade to be
- * registered.
- * <p>
- * If your upgrade doesn't have any associated configurable parameters (like most upgrades), you can use
- * {@link #simple(Function)} or {@link #simpleWithCustomItem(BiFunction)} to create a basic upgrade serialiser.
- * <p>
- * Upgrades may be data generated via a {@link UpgradeDataProvider} (see {@link TurtleUpgradeDataProvider} and
- * {@link PocketUpgradeDataProvider}).
+ * However, it may sometimes be useful to implement this if you have some shared logic between upgrade types.
  *
  * @param <T> The upgrade that this class can serialise and deserialise.
- * @see ITurtleUpgrade
- * @see IPocketUpgrade
+ * @see TurtleUpgradeSerialiser
+ * @see PocketUpgradeSerialiser
  */
 public interface UpgradeSerialiser<T extends UpgradeBase> {
     /**
@@ -68,30 +49,4 @@ public interface UpgradeSerialiser<T extends UpgradeBase> {
      */
     void toNetwork(FriendlyByteBuf buffer, T upgrade);
 
-    /**
-     * Create an upgrade serialiser for a simple upgrade. This is similar to a {@link SimpleCraftingRecipeSerializer},
-     * but for upgrades.
-     * <p>
-     * If you might want to vary the item, it's suggested you use {@link #simpleWithCustomItem(BiFunction)} instead.
-     *
-     * @param factory Generate a new upgrade with a specific ID.
-     * @param <T>     The type of the generated upgrade.
-     * @return The serialiser for this upgrade
-     */
-    static <T extends UpgradeBase> UpgradeSerialiser<T> simple(Function<ResourceLocation, T> factory) {
-        return new SimpleSerialiser<>(factory);
-    }
-
-    /**
-     * Create an upgrade serialiser for a simple upgrade whose crafting item can be specified.
-     *
-     * @param factory Generate a new upgrade with a specific ID and crafting item. The returned upgrade's
-     *                {@link UpgradeBase#getCraftingItem()} <strong>MUST</strong> equal the provided item.
-     * @param <T>     The type of the generated upgrade.
-     * @return The serialiser for this upgrade.
-     * @see #simple(Function)  For upgrades whose crafting stack should not vary.
-     */
-    static <T extends UpgradeBase> UpgradeSerialiser<T> simpleWithCustomItem(BiFunction<ResourceLocation, ItemStack, T> factory) {
-        return new SerialiserWithCraftingItem<>(factory);
-    }
 }

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

@@ -15,11 +15,10 @@ import dan200.computercraft.api.media.MediaProvider;
 import dan200.computercraft.api.network.PacketNetwork;
 import dan200.computercraft.api.network.wired.WiredElement;
 import dan200.computercraft.api.network.wired.WiredNode;
-import dan200.computercraft.api.pocket.IPocketUpgrade;
+import dan200.computercraft.api.pocket.PocketUpgradeSerialiser;
 import dan200.computercraft.api.redstone.BundledRedstoneProvider;
-import dan200.computercraft.api.turtle.ITurtleUpgrade;
 import dan200.computercraft.api.turtle.TurtleRefuelHandler;
-import dan200.computercraft.api.upgrades.UpgradeSerialiser;
+import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
 import net.minecraft.core.Registry;
@@ -68,9 +67,9 @@ public interface ComputerCraftAPIService {
 
     void registerRefuelHandler(TurtleRefuelHandler handler);
 
-    ResourceKey<Registry<UpgradeSerialiser<? extends ITurtleUpgrade>>> turtleUpgradeRegistryId();
+    ResourceKey<Registry<TurtleUpgradeSerialiser<?>>> turtleUpgradeRegistryId();
 
-    ResourceKey<Registry<UpgradeSerialiser<? extends IPocketUpgrade>>> pocketUpgradeRegistryId();
+    ResourceKey<Registry<PocketUpgradeSerialiser<?>>> pocketUpgradeRegistryId();
 
     DetailRegistry<ItemStack> getItemStackDetailRegistry();
 

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

@@ -6,6 +6,11 @@ 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;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.item.ItemStack;
 import org.jetbrains.annotations.ApiStatus;
 
 import javax.annotation.Nullable;
@@ -27,6 +32,39 @@ public interface PlatformHelper {
         return instance == null ? Services.raise(PlatformHelper.class, Instance.ERROR) : instance;
     }
 
+    /**
+     * Get the unique ID for a registered object.
+     *
+     * @param registry The registry to look up this object in.
+     * @param object   The object to look up.
+     * @param <T>      The type of object the registry stores.
+     * @return The registered object's ID.
+     * @throws IllegalArgumentException If the registry or object are not registered.
+     */
+    <T> ResourceLocation getRegistryKey(ResourceKey<Registry<T>> registry, T object);
+
+    /**
+     * Look up an ID in a registry, returning the registered object.
+     *
+     * @param registry The registry to look up this object in.
+     * @param id       The ID to look up.
+     * @param <T>      The type of object the registry stores.
+     * @return The resolved registry object.
+     * @throws IllegalArgumentException If the registry or object are not registered.
+     */
+    <T> T getRegistryObject(ResourceKey<Registry<T>> registry, ResourceLocation id);
+
+    /**
+     * Get the subset of an {@link ItemStack}'s {@linkplain ItemStack#getTag() tag} which is synced to the client.
+     *
+     * @param item The stack.
+     * @return The item's tag.
+     */
+    @Nullable
+    default CompoundTag getShareTag(ItemStack item) {
+        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}.

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

@@ -1,49 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.impl;
-
-import net.minecraft.core.Registry;
-import net.minecraft.core.registries.BuiltInRegistries;
-import net.minecraft.resources.ResourceKey;
-import net.minecraft.resources.ResourceLocation;
-import org.jetbrains.annotations.ApiStatus;
-
-/**
- * Additioanl functions for working with {@linkplain Registry registries}.
- */
-@ApiStatus.Internal
-public final class RegistryHelper {
-    private RegistryHelper() {
-    }
-
-    /**
-     * Find a registry from a {@link ResourceKey}, throwing if it does not exist.
-     *
-     * @param id  The id of the registry.
-     * @param <T> The contents of the registry
-     * @return The associated registry.
-     */
-    @SuppressWarnings("unchecked")
-    public static <T> Registry<T> getRegistry(ResourceKey<Registry<T>> id) {
-        var registry = (Registry<T>) BuiltInRegistries.REGISTRY.get(id.location());
-        if (registry == null) throw new IllegalArgumentException("Unknown registry " + id);
-        return registry;
-    }
-
-    /**
-     * Get the key of a registry entry, throwing if it is not registered.
-     *
-     * @param registry The registry to look up in.
-     * @param object   The object to look up.
-     * @param <T>      The type of this registry.
-     * @return The ID of this object
-     * @see Registry#getResourceKey(Object)
-     */
-    public static <T> ResourceLocation getKeyOrThrow(Registry<T> registry, T object) {
-        var key = registry.getResourceKey(object);
-        if (key.isEmpty()) throw new IllegalArgumentException(object + " was not registered in " + registry.key());
-        return key.get().location();
-    }
-}

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

@@ -23,27 +23,27 @@ import java.util.function.BiFunction;
  * @param <T> The upgrade that this class can serialise and deserialise.
  */
 @ApiStatus.Internal
-public final class SerialiserWithCraftingItem<T extends UpgradeBase> implements UpgradeSerialiser<T> {
+public abstract class SerialiserWithCraftingItem<T extends UpgradeBase> implements UpgradeSerialiser<T> {
     private final BiFunction<ResourceLocation, ItemStack, T> factory;
 
-    public SerialiserWithCraftingItem(BiFunction<ResourceLocation, ItemStack, T> factory) {
+    protected SerialiserWithCraftingItem(BiFunction<ResourceLocation, ItemStack, T> factory) {
         this.factory = factory;
     }
 
     @Override
-    public T fromJson(ResourceLocation id, JsonObject object) {
+    public final T fromJson(ResourceLocation id, JsonObject object) {
         var item = GsonHelper.getAsItem(object, "item");
         return factory.apply(id, new ItemStack(item));
     }
 
     @Override
-    public T fromNetwork(ResourceLocation id, FriendlyByteBuf buffer) {
+    public final T fromNetwork(ResourceLocation id, FriendlyByteBuf buffer) {
         var item = buffer.readItem();
         return factory.apply(id, item);
     }
 
     @Override
-    public void toNetwork(FriendlyByteBuf buffer, T upgrade) {
+    public final void toNetwork(FriendlyByteBuf buffer, T upgrade) {
         buffer.writeItem(upgrade.getCraftingItem());
     }
 }

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

@@ -21,7 +21,7 @@ import java.util.function.Function;
  * @param <T> The upgrade that this class can serialise and deserialise.
  */
 @ApiStatus.Internal
-public final class SimpleSerialiser<T extends UpgradeBase> implements UpgradeSerialiser<T> {
+public abstract class SimpleSerialiser<T extends UpgradeBase> implements UpgradeSerialiser<T> {
     private final Function<ResourceLocation, T> constructor;
 
     public SimpleSerialiser(Function<ResourceLocation, T> constructor) {
@@ -29,16 +29,16 @@ public final class SimpleSerialiser<T extends UpgradeBase> implements UpgradeSer
     }
 
     @Override
-    public T fromJson(ResourceLocation id, JsonObject object) {
+    public final T fromJson(ResourceLocation id, JsonObject object) {
         return constructor.apply(id);
     }
 
     @Override
-    public T fromNetwork(ResourceLocation id, FriendlyByteBuf buffer) {
+    public final T fromNetwork(ResourceLocation id, FriendlyByteBuf buffer) {
         return constructor.apply(id);
     }
 
     @Override
-    public void toNetwork(FriendlyByteBuf buffer, T upgrade) {
+    public final void toNetwork(FriendlyByteBuf buffer, T upgrade) {
     }
 }

projects/common/build.gradle.kts

@@ -11,6 +11,12 @@ plugins {
     id("cc-tweaked.publishing")
 }
 
+sourceSets {
+    main {
+        resources.srcDir("src/generated/resources")
+    }
+}
+
 minecraft {
     accessWideners(
         "src/main/resources/computercraft.accesswidener",
@@ -36,7 +42,6 @@ dependencies {
     implementation(commonClasses(project(":common-api")))
     clientImplementation(clientClasses(project(":common-api")))
 
-    compileOnly(libs.mixin)
     compileOnly(libs.bundles.externalMods.common)
     clientCompileOnly(variantOf(libs.emi) { classifier("api") })
 
@@ -106,3 +111,21 @@ val lintLua by tasks.registering(IlluaminateExec::class) {
     doFirst { if (System.getenv("GITHUB_ACTIONS") != null) println("::add-matcher::.github/matchers/illuaminate.json") }
     doLast { if (System.getenv("GITHUB_ACTIONS") != null) println("::remove-matcher owner=illuaminate::") }
 }
+
+val runData by tasks.registering(MergeTrees::class) {
+    output = layout.projectDirectory.dir("src/generated/resources")
+
+    for (loader in listOf("forge", "fabric")) {
+        mustRunAfter(":$loader:runData")
+        source {
+            input {
+                from(project(":$loader").layout.buildDirectory.dir("generatedResources"))
+                exclude(".cache")
+            }
+
+            output = project(":$loader").layout.projectDirectory.dir("src/generated/resources")
+        }
+    }
+}
+
+tasks.withType(GenerateModuleMetadata::class).configureEach { isEnabled = false }

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

@@ -108,7 +108,7 @@ public final class ClientHooks {
      */
     public static void addBlockDebugInfo(Consumer<String> addText) {
         var minecraft = Minecraft.getInstance();
-        if (!minecraft.getDebugOverlay().showDebugScreen() || minecraft.level == null) return;
+        if (!minecraft.options.renderDebug || minecraft.level == null) return;
         if (minecraft.hitResult == null || minecraft.hitResult.getType() != HitResult.Type.BLOCK) return;
 
         var tile = minecraft.level.getBlockEntity(((BlockHitResult) minecraft.hitResult).getBlockPos());
@@ -138,7 +138,7 @@ public final class ClientHooks {
      * @param addText A callback which adds a single line of text.
      */
     public static void addGameDebugInfo(Consumer<String> addText) {
-        if (MonitorBlockEntityRenderer.hasRenderedThisFrame() && Minecraft.getInstance().getDebugOverlay().showDebugScreen()) {
+        if (MonitorBlockEntityRenderer.hasRenderedThisFrame() && Minecraft.getInstance().options.renderDebug) {
             addText.accept("[CC:T] Monitor renderer: " + MonitorBlockEntityRenderer.currentRenderer());
         }
     }

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

@@ -32,8 +32,6 @@ import net.minecraft.Util;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.color.item.ItemColor;
 import net.minecraft.client.gui.screens.MenuScreens;
-import net.minecraft.client.gui.screens.Screen;
-import net.minecraft.client.gui.screens.inventory.MenuAccess;
 import net.minecraft.client.multiplayer.ClientLevel;
 import net.minecraft.client.renderer.ShaderInstance;
 import net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider;
@@ -45,8 +43,6 @@ import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.packs.resources.PreparableReloadListener;
 import net.minecraft.server.packs.resources.ResourceProvider;
 import net.minecraft.world.entity.LivingEntity;
-import net.minecraft.world.inventory.AbstractContainerMenu;
-import net.minecraft.world.inventory.MenuType;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.ItemLike;
@@ -86,6 +82,17 @@ public final class ClientRegistry {
      * @param itemProperties Callback to register item properties.
      */
     public static void registerMainThread(RegisterItemProperty itemProperties) {
+        MenuScreens.<AbstractComputerMenu, ComputerScreen<AbstractComputerMenu>>register(ModRegistry.Menus.COMPUTER.get(), ComputerScreen::new);
+        MenuScreens.<AbstractComputerMenu, ComputerScreen<AbstractComputerMenu>>register(ModRegistry.Menus.POCKET_COMPUTER.get(), ComputerScreen::new);
+        MenuScreens.<AbstractComputerMenu, NoTermComputerScreen<AbstractComputerMenu>>register(ModRegistry.Menus.POCKET_COMPUTER_NO_TERM.get(), NoTermComputerScreen::new);
+        MenuScreens.register(ModRegistry.Menus.TURTLE.get(), TurtleScreen::new);
+
+        MenuScreens.register(ModRegistry.Menus.PRINTER.get(), PrinterScreen::new);
+        MenuScreens.register(ModRegistry.Menus.DISK_DRIVE.get(), DiskDriveScreen::new);
+        MenuScreens.register(ModRegistry.Menus.PRINTOUT.get(), PrintoutScreen::new);
+
+        MenuScreens.<ViewComputerMenu, ComputerScreen<ViewComputerMenu>>register(ModRegistry.Menus.VIEW_COMPUTER.get(), ComputerScreen::new);
+
         registerItemProperty(itemProperties, "state",
             new UnclampedPropertyFunction((stack, world, player, random) -> {
                 var computer = ClientPocketComputers.get(stack);
@@ -99,23 +106,6 @@ public final class ClientRegistry {
         );
     }
 
-    public static void registerMenuScreens(RegisterMenuScreen register) {
-        register.<AbstractComputerMenu, ComputerScreen<AbstractComputerMenu>>register(ModRegistry.Menus.COMPUTER.get(), ComputerScreen::new);
-        register.<AbstractComputerMenu, ComputerScreen<AbstractComputerMenu>>register(ModRegistry.Menus.POCKET_COMPUTER.get(), ComputerScreen::new);
-        register.<AbstractComputerMenu, NoTermComputerScreen<AbstractComputerMenu>>register(ModRegistry.Menus.POCKET_COMPUTER_NO_TERM.get(), NoTermComputerScreen::new);
-        register.register(ModRegistry.Menus.TURTLE.get(), TurtleScreen::new);
-
-        register.register(ModRegistry.Menus.PRINTER.get(), PrinterScreen::new);
-        register.register(ModRegistry.Menus.DISK_DRIVE.get(), DiskDriveScreen::new);
-        register.register(ModRegistry.Menus.PRINTOUT.get(), PrintoutScreen::new);
-
-        register.<ViewComputerMenu, ComputerScreen<ViewComputerMenu>>register(ModRegistry.Menus.VIEW_COMPUTER.get(), ComputerScreen::new);
-    }
-
-    public interface RegisterMenuScreen {
-        <M extends AbstractContainerMenu, U extends Screen & MenuAccess<M>> void register(MenuType<? extends M> type, MenuScreens.ScreenConstructor<M, U> factory);
-    }
-
     public static void registerTurtleModellers(RegisterTurtleUpgradeModeller register) {
         register.register(ModRegistry.TurtleSerialisers.SPEAKER.get(), TurtleUpgradeModeller.sided(
             new ResourceLocation(ComputerCraftAPI.MOD_ID, "block/turtle_speaker_left"),

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

@@ -2,18 +2,19 @@
 //
 // SPDX-License-Identifier: MPL-2.0
 
-package dan200.computercraft.impl.client;
+package dan200.computercraft.client;
 
 import com.google.auto.service.AutoService;
 import dan200.computercraft.api.client.turtle.TurtleUpgradeModeller;
 import dan200.computercraft.api.turtle.ITurtleUpgrade;
-import dan200.computercraft.api.upgrades.UpgradeSerialiser;
+import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
 import dan200.computercraft.client.turtle.TurtleUpgradeModellers;
+import dan200.computercraft.impl.client.ComputerCraftAPIClientService;
 
-@AutoService(FabricComputerCraftAPIClientService.class)
-public final class FabricComputerCraftAPIClientImpl implements FabricComputerCraftAPIClientService {
+@AutoService(ComputerCraftAPIClientService.class)
+public final class ComputerCraftAPIClientImpl implements ComputerCraftAPIClientService {
     @Override
-    public <T extends ITurtleUpgrade> void registerTurtleUpgradeModeller(UpgradeSerialiser<T> serialiser, TurtleUpgradeModeller<T> modeller) {
+    public <T extends ITurtleUpgrade> void registerTurtleUpgradeModeller(TurtleUpgradeSerialiser<T> serialiser, TurtleUpgradeModeller<T> modeller) {
         TurtleUpgradeModellers.register(serialiser, modeller);
     }
 }

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

@@ -127,6 +127,7 @@ public abstract class AbstractComputerScreen<T extends AbstractComputerMenu> ext
 
     @Override
     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/ClientInputHandler.java

@@ -49,31 +49,31 @@ public final class ClientInputHandler implements InputHandler {
 
     @Override
     public void keyDown(int key, boolean repeat) {
-        ClientNetworking.sendToServer(new KeyEventServerMessage(menu, repeat ? KeyEventServerMessage.TYPE_REPEAT : KeyEventServerMessage.TYPE_DOWN, key));
+        ClientNetworking.sendToServer(new KeyEventServerMessage(menu, repeat ? KeyEventServerMessage.Action.REPEAT : KeyEventServerMessage.Action.DOWN, key));
     }
 
     @Override
     public void keyUp(int key) {
-        ClientNetworking.sendToServer(new KeyEventServerMessage(menu, KeyEventServerMessage.TYPE_UP, key));
+        ClientNetworking.sendToServer(new KeyEventServerMessage(menu, KeyEventServerMessage.Action.UP, key));
     }
 
     @Override
     public void mouseClick(int button, int x, int y) {
-        ClientNetworking.sendToServer(new MouseEventServerMessage(menu, MouseEventServerMessage.TYPE_CLICK, button, x, y));
+        ClientNetworking.sendToServer(new MouseEventServerMessage(menu, MouseEventServerMessage.Action.CLICK, button, x, y));
     }
 
     @Override
     public void mouseUp(int button, int x, int y) {
-        ClientNetworking.sendToServer(new MouseEventServerMessage(menu, MouseEventServerMessage.TYPE_UP, button, x, y));
+        ClientNetworking.sendToServer(new MouseEventServerMessage(menu, MouseEventServerMessage.Action.UP, button, x, y));
     }
 
     @Override
     public void mouseDrag(int button, int x, int y) {
-        ClientNetworking.sendToServer(new MouseEventServerMessage(menu, MouseEventServerMessage.TYPE_DRAG, button, x, y));
+        ClientNetworking.sendToServer(new MouseEventServerMessage(menu, MouseEventServerMessage.Action.DRAG, button, x, y));
     }
 
     @Override
     public void mouseScroll(int direction, int x, int y) {
-        ClientNetworking.sendToServer(new MouseEventServerMessage(menu, MouseEventServerMessage.TYPE_SCROLL, direction, x, y));
+        ClientNetworking.sendToServer(new MouseEventServerMessage(menu, MouseEventServerMessage.Action.SCROLL, direction, x, y));
     }
 }

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

@@ -28,6 +28,7 @@ public class DiskDriveScreen extends AbstractContainerScreen<DiskDriveMenu> {
 
     @Override
     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

@@ -9,7 +9,6 @@ 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;
-import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.FormattedCharSequence;
 import net.minecraft.world.item.ItemStack;
 
@@ -19,7 +18,6 @@ import java.util.List;
  * A {@link Toast} implementation which displays an arbitrary message along with an optional {@link ItemStack}.
  */
 public class ItemToast implements Toast {
-    private static final ResourceLocation TEXTURE = new ResourceLocation("toast/recipe");
     public static final Object TRANSFER_NO_RESPONSE_TOKEN = new Object();
 
     private static final long DISPLAY_TIME = 7000L;
@@ -81,7 +79,7 @@ public class ItemToast implements Toast {
         }
 
         if (width == 160 && message.size() <= 1) {
-            graphics.blitSprite(TEXTURE, 0, 0, width, height());
+            graphics.blit(TEXTURE, 0, 0, 0, 64, width, height());
         } else {
 
             var height = height();
@@ -111,14 +109,14 @@ public class ItemToast implements Toast {
     }
 
     private static void renderBackgroundRow(GuiGraphics graphics, int x, int u, int y, int height) {
-        var leftOffset = u == 0 ? 20 : 5;
+        var leftOffset = 5;
         var rightOffset = Math.min(60, x - leftOffset);
 
-        graphics.blitSprite(TEXTURE, 160, 32, 0, u, 0, y, leftOffset, height);
+        graphics.blit(TEXTURE, 0, y, 0, 32 + u, leftOffset, height);
         for (var k = leftOffset; k < x - rightOffset; k += 64) {
-            graphics.blitSprite(TEXTURE, 160, 32, 32, u, k, y, Math.min(64, x - k - rightOffset), height);
+            graphics.blit(TEXTURE, k, y, 32, 32 + u, Math.min(64, x - k - rightOffset), height);
         }
 
-        graphics.blitSprite(TEXTURE, 160, 32, 160 - rightOffset, u, x - rightOffset, y, 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

@@ -66,9 +66,9 @@ public class NoTermComputerScreen<T extends AbstractComputerMenu> extends Screen
     }
 
     @Override
-    public boolean mouseScrolled(double mouseX, double mouseY, double scrollX, double scrollY) {
-        Objects.requireNonNull(minecraft().player).getInventory().swapPaint(scrollY);
-        return super.mouseScrolled(mouseX, mouseY, scrollX, scrollY);
+    public boolean mouseScrolled(double pMouseX, double pMouseY, double pDelta) {
+        Objects.requireNonNull(minecraft().player).getInventory().swapPaint(pDelta);
+        return super.mouseScrolled(pMouseX, pMouseY, pDelta);
     }
 
     @Override

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

@@ -86,6 +86,8 @@ public final class OptionScreen extends Screen {
 
     @Override
     public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        renderBackground(graphics);
+
         // Render the actual texture.
         graphics.blit(BACKGROUND, x, y, 0, 0, innerWidth, PADDING);
         graphics.blit(BACKGROUND,

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

@@ -30,6 +30,7 @@ public class PrinterScreen extends AbstractContainerScreen<PrinterMenu> {
 
     @Override
     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

@@ -64,15 +64,15 @@ public class PrintoutScreen extends AbstractContainerScreen<HeldItemMenu> {
     }
 
     @Override
-    public boolean mouseScrolled(double x, double y, double deltaX, double deltaY) {
-        if (super.mouseScrolled(x, y, deltaX, deltaY)) return true;
-        if (deltaY < 0) {
+    public boolean mouseScrolled(double x, double y, double delta) {
+        if (super.mouseScrolled(x, y, delta)) return true;
+        if (delta < 0) {
             // Scroll up goes to the next page
             if (page < pages - 1) page++;
             return true;
         }
 
-        if (deltaY > 0) {
+        if (delta > 0) {
             // Scroll down goes to the previous page
             if (page > 0) page--;
             return true;
@@ -91,12 +91,14 @@ public class PrintoutScreen extends AbstractContainerScreen<HeldItemMenu> {
     }
 
     @Override
-    public void renderBackground(GuiGraphics graphics, 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.
         graphics.pose().pushPose();
         graphics.pose().translate(0, 0, -1);
-        super.renderBackground(graphics, mouseX, mouseY, partialTicks);
+        renderBackground(graphics);
         graphics.pose().popPose();
+
+        super.render(graphics, mouseX, mouseY, partialTicks);
     }
 
     @Override

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

@@ -43,10 +43,6 @@ public class DynamicImageButton extends Button {
 
     @Override
     public void renderWidget(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
-        var message = this.message.get();
-        setMessage(message.message());
-        setTooltip(message.tooltip());
-
         var texture = this.texture.get(isHoveredOrFocused());
 
         RenderSystem.disableDepthTest();
@@ -54,6 +50,14 @@ public class DynamicImageButton extends Button {
         RenderSystem.enableDepthTest();
     }
 
+    @Override
+    public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        var message = this.message.get();
+        setMessage(message.message());
+        setTooltip(message.tooltip());
+        super.render(graphics, mouseX, mouseY, partialTicks);
+    }
+
     public record HintedMessage(Component message, Tooltip tooltip) {
         public HintedMessage(Component message, @Nullable Component hint) {
             this(

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

@@ -195,16 +195,16 @@ public class TerminalWidget extends AbstractWidget {
     }
 
     @Override
-    public boolean mouseScrolled(double mouseX, double mouseY, double deltaX, double deltaY) {
+    public boolean mouseScrolled(double mouseX, double mouseY, double delta) {
         if (!inTermRegion(mouseX, mouseY)) return false;
-        if (!hasMouseSupport() || deltaY == 0) return false;
+        if (!hasMouseSupport() || delta == 0) return false;
 
         var charX = (int) ((mouseX - innerX) / FONT_WIDTH);
         var charY = (int) ((mouseY - innerY) / FONT_HEIGHT);
         charX = Math.min(Math.max(charX, 0), terminal.getWidth() - 1);
         charY = Math.min(Math.max(charY, 0), terminal.getHeight() - 1);
 
-        computer.mouseScroll(deltaY < 0 ? 1 : -1, charX + 1, charY + 1);
+        computer.mouseScroll(delta < 0 ? 1 : -1, charX + 1, charY + 1);
 
         lastMouseX = charX;
         lastMouseY = charY;

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

@@ -49,7 +49,7 @@ public final class ClientNetworkContextImpl implements ClientNetworkContext {
     }
 
     @Override
-    public void handleMonitorData(BlockPos pos, TerminalState terminal) {
+    public void handleMonitorData(BlockPos pos, @Nullable TerminalState terminal) {
         var player = Minecraft.getInstance().player;
         if (player == null) return;
 
@@ -67,7 +67,7 @@ public final class ClientNetworkContextImpl implements ClientNetworkContext {
     }
 
     @Override
-    public void handlePocketComputerData(UUID instanceId, ComputerState state, int lightState, TerminalState terminal) {
+    public void handlePocketComputerData(UUID instanceId, ComputerState state, int lightState, @Nullable TerminalState terminal) {
         ClientPocketComputers.setState(instanceId, state, lightState, terminal);
     }
 

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

@@ -11,7 +11,7 @@ import net.minecraft.client.renderer.MultiBufferSource;
 import net.minecraft.client.resources.model.BakedModel;
 import net.minecraft.core.BlockPos;
 import net.minecraft.network.protocol.Packet;
-import net.minecraft.network.protocol.common.ServerCommonPacketListener;
+import net.minecraft.network.protocol.game.ServerGamePacketListener;
 import net.minecraft.sounds.SoundEvent;
 
 import javax.annotation.Nullable;
@@ -27,7 +27,7 @@ public interface ClientPlatformHelper extends dan200.computercraft.impl.client.C
      * @param message The messsge to convert.
      * @return The converted message.
      */
-    Packet<ServerCommonPacketListener> createPacket(NetworkMessage<ServerNetworkContext> message);
+    Packet<ServerGamePacketListener> createPacket(NetworkMessage<ServerNetworkContext> message);
 
     /**
      * Render a {@link BakedModel}, using any loader-specific hooks.

projects/common/src/client/java/dan200/computercraft/client/pocket/ClientPocketComputers.java

@@ -43,7 +43,7 @@ public final class ClientPocketComputers {
      * @param lightColour  The current colour of the modem light.
      * @param terminalData The current terminal contents.
      */
-    public static void setState(UUID instanceId, ComputerState state, int lightColour, TerminalState terminalData) {
+    public static void setState(UUID instanceId, ComputerState state, int lightColour, @Nullable TerminalState terminalData) {
         var computer = instances.get(instanceId);
         if (computer == null) {
             instances.put(instanceId, new PocketComputerData(state, lightColour, terminalData));

projects/common/src/client/java/dan200/computercraft/client/pocket/PocketComputerData.java

@@ -26,10 +26,10 @@ public final class PocketComputerData {
     private ComputerState state;
     private int lightColour;
 
-    PocketComputerData(ComputerState state, int lightColour, TerminalState terminalData) {
+    PocketComputerData(ComputerState state, int lightColour, @Nullable TerminalState terminalData) {
         this.state = state;
         this.lightColour = lightColour;
-        if (terminalData.hasTerminal()) terminal = terminalData.create();
+        if (terminalData != null) terminal = terminalData.create();
     }
 
     public int getLightState() {
@@ -44,11 +44,11 @@ public final class PocketComputerData {
         return state;
     }
 
-    void setState(ComputerState state, int lightColour, TerminalState terminalData) {
+    void setState(ComputerState state, int lightColour, @Nullable TerminalState terminalData) {
         this.state = state;
         this.lightColour = lightColour;
 
-        if (terminalData.hasTerminal()) {
+        if (terminalData != null) {
             if (terminal == null) {
                 terminal = terminalData.create();
             } else {

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

@@ -125,10 +125,10 @@ public class SpriteRenderer {
     }
 
     public static float u(TextureAtlasSprite sprite, int x, int width) {
-        return sprite.getU((float) x / width);
+        return sprite.getU((double) x / width * 16);
     }
 
     public static float v(TextureAtlasSprite sprite, int y, int height) {
-        return sprite.getV((float) y / height);
+        return sprite.getV((double) y / height * 16);
     }
 }

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

@@ -9,7 +9,6 @@ import com.mojang.blaze3d.platform.MemoryTracker;
 import com.mojang.blaze3d.systems.RenderSystem;
 import com.mojang.blaze3d.vertex.*;
 import com.mojang.math.Axis;
-import dan200.computercraft.annotations.ForgeOverride;
 import dan200.computercraft.client.FrameInfo;
 import dan200.computercraft.client.integration.ShaderMod;
 import dan200.computercraft.client.render.RenderTypes;
@@ -26,7 +25,6 @@ import dan200.computercraft.shared.util.DirectionUtil;
 import net.minecraft.client.renderer.MultiBufferSource;
 import net.minecraft.client.renderer.blockentity.BlockEntityRenderer;
 import net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider;
-import net.minecraft.world.phys.AABB;
 import org.joml.Matrix3f;
 import org.joml.Matrix4f;
 import org.lwjgl.opengl.GL11;
@@ -257,11 +255,6 @@ public class MonitorBlockEntityRenderer implements BlockEntityRenderer<MonitorBl
         return Config.monitorDistance;
     }
 
-    @ForgeOverride
-    public AABB getRenderBoundingBox(MonitorBlockEntity monitor) {
-        return monitor.getRenderBoundingBox();
-    }
-
     /**
      * Determine if any monitors were rendered this frame.
      *

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

@@ -10,7 +10,6 @@ import dan200.computercraft.api.client.turtle.TurtleUpgradeModeller;
 import dan200.computercraft.api.turtle.ITurtleAccess;
 import dan200.computercraft.api.turtle.TurtleSide;
 import dan200.computercraft.shared.turtle.upgrades.TurtleModem;
-import net.minecraft.nbt.CompoundTag;
 import net.minecraft.resources.ResourceLocation;
 import org.jetbrains.annotations.Nullable;
 
@@ -41,7 +40,7 @@ public class TurtleModemModeller implements TurtleUpgradeModeller<TurtleModem> {
     }
 
     @Override
-    public TransformedModel getModel(TurtleModem upgrade, @Nullable ITurtleAccess turtle, TurtleSide side, CompoundTag data) {
+    public TransformedModel getModel(TurtleModem upgrade, @Nullable ITurtleAccess turtle, TurtleSide side) {
         var active = false;
         if (turtle != null) {
             var turtleNBT = turtle.getUpgradeNBTData(side);

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

@@ -10,13 +10,15 @@ import dan200.computercraft.api.client.turtle.TurtleUpgradeModeller;
 import dan200.computercraft.api.turtle.ITurtleAccess;
 import dan200.computercraft.api.turtle.ITurtleUpgrade;
 import dan200.computercraft.api.turtle.TurtleSide;
-import dan200.computercraft.api.upgrades.UpgradeSerialiser;
-import dan200.computercraft.impl.RegistryHelper;
+import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
+import dan200.computercraft.impl.PlatformHelper;
 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 org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.Map;
 import java.util.WeakHashMap;
@@ -27,10 +29,12 @@ import java.util.stream.Stream;
  * A registry of {@link TurtleUpgradeModeller}s.
  */
 public final class TurtleUpgradeModellers {
-    private static final TurtleUpgradeModeller<ITurtleUpgrade> NULL_TURTLE_MODELLER = (upgrade, turtle, side, data) ->
+    private static final Logger LOG = LoggerFactory.getLogger(TurtleUpgradeModellers.class);
+
+    private static final TurtleUpgradeModeller<ITurtleUpgrade> NULL_TURTLE_MODELLER = (upgrade, turtle, side) ->
         new TransformedModel(Minecraft.getInstance().getModelManager().getMissingModel(), Transformation.identity());
 
-    private static final Map<UpgradeSerialiser<? extends ITurtleUpgrade>, TurtleUpgradeModeller<?>> turtleModels = new ConcurrentHashMap<>();
+    private static final Map<TurtleUpgradeSerialiser<?>, TurtleUpgradeModeller<?>> turtleModels = new ConcurrentHashMap<>();
     private static volatile boolean fetchedModels;
 
     /**
@@ -44,12 +48,15 @@ public final class TurtleUpgradeModellers {
     private TurtleUpgradeModellers() {
     }
 
-    public static <T extends ITurtleUpgrade> void register(UpgradeSerialiser<T> serialiser, TurtleUpgradeModeller<T> modeller) {
+    public static <T extends ITurtleUpgrade> void register(TurtleUpgradeSerialiser<T> serialiser, TurtleUpgradeModeller<T> modeller) {
         if (fetchedModels) {
-            throw new IllegalStateException(String.format(
-                "Turtle upgrade serialiser %s must be registered before models are baked.",
-                RegistryHelper.getKeyOrThrow(RegistryHelper.getRegistry(ITurtleUpgrade.serialiserRegistryKey()), serialiser)
-            ));
+            // TODO(1.20.4): Replace with an error.
+            LOG.warn(
+                "Turtle upgrade serialiser {} was registered too late, its models may not be loaded correctly. If you are " +
+                    "the mod author, you may be using a deprecated API - see https://github.com/cc-tweaked/CC-Tweaked/pull/1684 " +
+                    "for further information.",
+                PlatformHelper.get().getRegistryKey(TurtleUpgradeSerialiser.registryId(), serialiser)
+            );
         }
 
         if (turtleModels.putIfAbsent(serialiser, modeller) != null) {
@@ -60,13 +67,13 @@ public final class TurtleUpgradeModellers {
     public static TransformedModel getModel(ITurtleUpgrade upgrade, ITurtleAccess access, TurtleSide side) {
         @SuppressWarnings("unchecked")
         var modeller = (TurtleUpgradeModeller<ITurtleUpgrade>) modelCache.computeIfAbsent(upgrade, TurtleUpgradeModellers::getModeller);
-        return modeller.getModel(upgrade, access, side, access.getUpgradeNBTData(side));
+        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, null, side, data);
+        return modeller.getModel(upgrade, data, side);
     }
 
     private static TurtleUpgradeModeller<?> getModeller(ITurtleUpgrade upgradeA) {