Bump CC:T to 1.109.1

This is a bit of an odd combination of a few bugs:
 - When the terminal component is blurred, we fire a mouse_up event for
   the last-held button. However, we had an off-by-1 error here, so this
   only triggered for the right/middle buttons.

 - This was obsucuring the second bug, which is when we clicked within
   the terminal, this caused the terminal to be blurred (thus releasing
   the mouse) and then focused again.

   We fix this by only setting the focus if there's actually a change.

Fixes #1655

.github/workflows/main-ci.yml

@@ -8,16 +8,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - name: Clone repository
+    - name: 📥 Clone repository
       uses: actions/checkout@v3
 
-    - name: Set up Java
+    - name: 📥 Set up Java
       uses: actions/setup-java@v3
       with:
         java-version: 17
         distribution: 'temurin'
 
-    - name: Setup Gradle
+    - name: 📥 Setup Gradle
       uses: gradle/gradle-build-action@v2
       with:
         cache-read-only: ${{ !startsWith(github.ref, 'refs/heads/mc-') }}
@@ -27,42 +27,45 @@ jobs:
         mkdir -p ~/.gradle
         echo "org.gradle.daemon=false" >> ~/.gradle/gradle.properties
 
-    - name: Build with Gradle
+    - name: ⚒️ Build
       run: ./gradlew assemble || ./gradlew assemble
 
-    - name: Download assets for game tests
+    - name: 💡 Lint
+      uses: pre-commit/action@v3.0.0
+
+    - name: 🧪 Run tests
+      run: ./gradlew test validateMixinNames checkChangelog
+
+    - name: 📥 Download assets for game tests
       run: ./gradlew downloadAssets || ./gradlew downloadAssets
 
-    - name: Run tests and linters
-      run: ./gradlew build
+    - name: 🧪 Run integration tests
+      run: ./gradlew runGametest
 
-    - name: Run client tests
+    - name: 🧪 Run client tests
       run: ./gradlew runGametestClient # Not checkClient, as no point running rendering tests.
       # These are a little flaky on GH actions: its useful to run them, but don't break the build.
       continue-on-error: true
 
-    - name: Prepare Jars
+    - name: 🧪 Parse test reports
+      run: ./tools/parse-reports.py
+      if: ${{ failure() }}
+
+    - name: 📦 Prepare Jars
       run: |
         # Find the main jar and append the git hash onto it.
         mkdir -p jars
         find projects/forge/build/libs projects/fabric/build/libs -type f -regex '.*[0-9.]+\(-SNAPSHOT\)?\.jar$' -exec bash -c 'cp {} "jars/$(basename {} .jar)-$(git rev-parse HEAD).jar"' \;
 
-    - name: Upload Jar
+    - name: 📤 Upload Jar
       uses: actions/upload-artifact@v3
       with:
         name: CC-Tweaked
         path: ./jars
 
-    - name: Upload coverage
+    - name: 📤 Upload coverage
       uses: codecov/codecov-action@v3
 
-    - name: Parse test reports
-      run: ./tools/parse-reports.py
-      if: ${{ failure() }}
-
-    - name: Run linters
-      uses: pre-commit/action@v3.0.0
-
   build-core:
     strategy:
       fail-fast: false

.pre-commit-config.yaml

@@ -6,7 +6,7 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v4.0.1
+  rev: v4.4.0
   hooks:
   - id: trailing-whitespace
   - id: end-of-file-fixer
@@ -20,14 +20,14 @@ repos:
     exclude: "tsconfig\\.json$"
 
 - repo: https://github.com/editorconfig-checker/editorconfig-checker.python
-  rev: 2.3.54
+  rev: 2.7.2
   hooks:
   - id: editorconfig-checker
     args: ['-disable-indentation']
     exclude: "^(.*\\.(bat)|LICENSE)$"
 
 - repo: https://github.com/fsfe/reuse-tool
-  rev: v1.1.0
+  rev: v2.1.0
   hooks:
   - id: reuse
 
@@ -44,7 +44,7 @@ repos:
     name: Check Java codestyle
     files: ".*\\.java$"
     language: system
-    entry: ./gradlew checkstyleMain checkstyleTest
+    entry: ./gradlew checkstyle
     pass_filenames: false
     require_serial: true
   - id: illuaminate

.reuse/dep5

@@ -6,11 +6,12 @@ Upstream-Contact: Jonathan Coates <git@squiddev.cc>
 Files:
   projects/common/src/main/resources/assets/computercraft/sounds.json
   projects/common/src/main/resources/assets/computercraft/sounds/empty.ogg
+  projects/common/src/testMod/resources/data/cctest/computercraft/turtle_upgrades/*
   projects/common/src/testMod/resources/data/cctest/structures/*
   projects/fabric/src/generated/*
   projects/forge/src/generated/*
-  projects/web/src/export/index.json
-  projects/web/src/export/items/minecraft/*
+  projects/web/src/htmlTransform/export/index.json
+  projects/web/src/htmlTransform/export/items/minecraft/*
 Comment: Generated/data files are CC0.
 Copyright: The CC: Tweaked Developers
 License: CC0-1.0
@@ -36,10 +37,10 @@ Files:
   projects/fabric/src/testMod/resources/computercraft-gametest.fabric.mixins.json
   projects/fabric/src/testMod/resources/fabric.mod.json
   projects/forge/src/client/resources/computercraft-client.forge.mixins.json
-  projects/web/src/mount/.settings
-  projects/web/src/mount/example.nfp
-  projects/web/src/mount/example.nft
-  projects/web/src/mount/expr_template.lua
+  projects/web/src/frontend/mount/.settings
+  projects/web/src/frontend/mount/example.nfp
+  projects/web/src/frontend/mount/example.nft
+  projects/web/src/frontend/mount/expr_template.lua
   projects/web/tsconfig.json
 Comment: Several assets where it's inconvenient to create a .license file.
 Copyright: The CC: Tweaked Developers
@@ -47,23 +48,37 @@ License: MPL-2.0
 
 Files:
   doc/logo.png
+  doc/logo-darkmode.png
   projects/common/src/main/resources/assets/computercraft/models/*
   projects/common/src/main/resources/assets/computercraft/textures/*
   projects/common/src/main/resources/pack.mcmeta
   projects/common/src/main/resources/pack.png
+  projects/core/src/main/resources/assets/computercraft/textures/gui/term_font.png
   projects/core/src/main/resources/data/computercraft/lua/rom/autorun/.ignoreme
   projects/core/src/main/resources/data/computercraft/lua/rom/help/*
   projects/core/src/main/resources/data/computercraft/lua/rom/programs/fun/advanced/levels/*
-  projects/web/src/export/items/computercraft/*
+  projects/web/src/htmlTransform/export/items/computercraft/*
 Comment: Bulk-license original assets as CCPL.
 Copyright: 2011 Daniel Ratcliffe
 License: LicenseRef-CCPL
 
+Files:
+  projects/common/src/main/resources/assets/computercraft/lang/cs_cz.json
+  projects/common/src/main/resources/assets/computercraft/lang/ko_kr.json
+  projects/common/src/main/resources/assets/computercraft/lang/pl_pl.json
+  projects/common/src/main/resources/assets/computercraft/lang/pt_br.json
+  projects/common/src/main/resources/assets/computercraft/lang/ru_ru.json
+  projects/common/src/main/resources/assets/computercraft/lang/uk_ua.json
+  projects/common/src/main/resources/assets/computercraft/lang/zh_cn.json
+Comment: Community-contributed license files
+Copyright: 2017 The CC: Tweaked Developers
+License: LicenseRef-CCPL
+
 Files:
   projects/common/src/main/resources/assets/computercraft/lang/*
 Comment: Community-contributed license files
 Copyright: 2017 The CC: Tweaked Developers
-License: LicenseRef-CCPL
+License: MPL-2.0
 
 Files:
   .github/*

CONTRIBUTING.md

@@ -6,7 +6,7 @@ SPDX-License-Identifier: MPL-2.0
 
 # Contributing to CC: Tweaked
 As with many open source projects, CC: Tweaked thrives on contributions from other people! This document (hopefully)
-provides an introduction as to how to get started in helping out.
+provides an introduction as to how to get started with helping out.
 
 If you've any other questions, [just ask the community][community] or [open an issue][new-issue].
 
@@ -28,7 +28,7 @@ automatically with GitHub, so please don't submit PRs adding/changing translatio
 ## Setting up a development environment
 In order to develop CC: Tweaked, you'll need to download the source code and then run it.
 
- - Make sure you've got the following software instealled:
+ - Make sure you've got the following software installed:
    - Java Development Kit (JDK) installed. This can be downloaded from [Adoptium].
    - [Git](https://git-scm.com/).
    - If you want to work on documentation, [NodeJS][node].
@@ -51,10 +51,10 @@ If you want to run CC:T in a normal Minecraft instance, run `./gradlew assemble`
 ## Developing CC: Tweaked
 Before making any major changes to CC: Tweaked, I'd recommend you have a read of the [the architecture
 document][architecture] first. While it's not a comprehensive document, it gives a good hint of where you should start
-looking to make your changes. As always, if you're not sure [do ask the community][community]!
+looking to make your changes. As always, if you're not sure, [do ask the community][community]!
 
 ### Testing
-When making larger changes, it's may be useful to write a test to make sure your code works as expected.
+When making larger changes, it may be useful to write a test to make sure your code works as expected.
 
 CC: Tweaked has several test suites, each designed to test something different:
 
@@ -91,16 +91,15 @@ file.
 
 Documentation is built using [illuaminate] which, while not currently documented (somewhat ironic), is largely the same
 as [ldoc][ldoc]. Documentation comments are written in Markdown, though note that we do not support many GitHub-specific
-markdown features - if you can, do check what the documentation looks like locally!
+markdown features. If you can, do check what the documentation looks like locally!
 
 When writing long-form documentation (such as the guides in [doc/guides](doc/guides)), I find it useful to tell a
-narrative. Think of what you want the user to learn or achieve, then start introducing a simple concept and then talk
-about how you can build on that, until you've covered everything!
+narrative. Think of what you want the user to learn or achieve, then start introducing a simple concept, and then talk
+about how you can build on that until you've covered everything!
 
 [new-issue]: https://github.com/cc-tweaked/CC-Tweaked/issues/new/choose "Create a new issue"
 [community]: README.md#community "Get in touch with the community."
 [Adoptium]: https://adoptium.net/temurin/releases?version=17 "Download OpenJDK 17"
-[checkstyle]: https://checkstyle.org/
 [illuaminate]: https://github.com/SquidDev/illuaminate/ "Illuaminate on GitHub"
 [weblate]: https://i18n.tweaked.cc/projects/cc-tweaked/minecraft/ "CC: Tweaked weblate instance"
 [docs]: https://tweaked.cc/ "CC: Tweaked documentation"

README.md

@@ -4,7 +4,12 @@ SPDX-FileCopyrightText: 2017 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-# ![CC: Tweaked](doc/logo.png)
+<picture>
+  <source media="(prefers-color-scheme: dark)" srcset="./doc/logo-darkmode.png">
+  <source media="(prefers-color-scheme: light)" srcset="./doc/logo.png">
+  <img alt="CC: Tweaked" src="./doc/logo.png">
+</picture>
+
 [![Current build status](https://github.com/cc-tweaked/CC-Tweaked/workflows/Build/badge.svg)](https://github.com/cc-tweaked/CC-Tweaked/actions "Current build status")
 [![Download CC: Tweaked on CurseForge](https://img.shields.io/static/v1?label=Download&message=CC:%20Tweaked&color=E04E14&logoColor=E04E14&logo=CurseForge)][CurseForge]
 [![Download CC: Tweaked on Modrinth](https://img.shields.io/static/v1?label=Download&color=00AF5C&logoColor=00AF5C&logo=Modrinth&message=CC:%20Tweaked)][Modrinth]
@@ -37,14 +42,13 @@ repositories {
     url "https://squiddev.cc/maven/"
     content {
       includeGroup("cc.tweaked")
-      includeModule("org.squiddev", "Cobalt")
     }
   }
 }
 
 dependencies {
   // Vanilla (i.e. for multi-loader systems)
-  compileOnly("cc.tweaked:cc-tweaked-$mcVersion-common-api")
+  compileOnly("cc.tweaked:cc-tweaked-$mcVersion-common-api:$cctVersion")
 
   // Forge Gradle
   compileOnly("cc.tweaked:cc-tweaked-$mcVersion-core-api:$cctVersion")
@@ -57,6 +61,19 @@ dependencies {
 }
 ```
 
+When using ForgeGradle, you may also need to add the following:
+
+```groovy
+minecraft {
+    runs {
+        configureEach {
+            property 'mixin.env.remapRefMap', 'true'
+            property 'mixin.env.refMapRemappingFile', "${buildDir}/createSrgToMcp/output.srg"
+        }
+    }
+}
+```
+
 You should also be careful to only use classes within the `dan200.computercraft.api` package. Non-API classes are
 subject to change at any point. If you depend on functionality outside the API, file an issue, and we can look into
 exposing more features.

build.gradle.kts

@@ -2,7 +2,11 @@
 //
 // SPDX-License-Identifier: MPL-2.0
 
+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
 
 plugins {
@@ -38,6 +42,50 @@ githubRelease {
 
 tasks.publish { dependsOn(tasks.githubRelease) }
 
+idea.project.settings.runConfigurations {
+    register<JUnitExt>("Core Tests") {
+        vmParameters = "-ea"
+        moduleName = "${idea.project.name}.core.test"
+        packageName = ""
+    }
+
+    register<JUnitExt>("CraftOS Tests") {
+        vmParameters = "-ea"
+        moduleName = "${idea.project.name}.core.test"
+        className = "dan200.computercraft.core.ComputerTestDelegate"
+    }
+
+    register<JUnitExt>("CraftOS Tests (Fast)") {
+        vmParameters = "-ea -Dcc.skip_keywords=slow"
+        moduleName = "${idea.project.name}.core.test"
+        className = "dan200.computercraft.core.ComputerTestDelegate"
+    }
+
+    register<JUnitExt>("Common Tests") {
+        vmParameters = "-ea"
+        moduleName = "${idea.project.name}.common.test"
+        packageName = ""
+    }
+
+    register<JUnitExt>("Fabric Tests") {
+        val fabricProject = evaluationDependsOn(":fabric")
+        val classPathGroup = fabricProject.extensions.getByType<LoomGradleExtensionAPI>().mods
+            .joinToString(File.pathSeparator + File.pathSeparator) { modSettings ->
+                SourceSetHelper.getClasspath(modSettings, project).joinToString(File.pathSeparator) { it.absolutePath }
+            }
+
+        vmParameters = "-ea -Dfabric.classPathGroups=$classPathGroup"
+        moduleName = "${idea.project.name}.fabric.test"
+        packageName = ""
+    }
+
+    register<JUnitExt>("Forge Tests") {
+        vmParameters = "-ea"
+        moduleName = "${idea.project.name}.forge.test"
+        packageName = ""
+    }
+}
+
 idea.project.settings.compiler.javac {
     // We want ErrorProne to be present when compiling via IntelliJ, as it offers some helpful warnings
     // and errors. Loop through our source sets and find the appropriate flags.

buildSrc/build.gradle.kts

@@ -50,10 +50,11 @@ dependencies {
     implementation(libs.curseForgeGradle)
     implementation(libs.fabric.loom)
     implementation(libs.forgeGradle)
+    implementation(libs.ideaExt)
     implementation(libs.librarian)
     implementation(libs.minotaur)
-    implementation(libs.quiltflower)
     implementation(libs.vanillaGradle)
+    implementation(libs.vineflower)
 }
 
 gradlePlugin {

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

@@ -12,7 +12,7 @@ import cc.tweaked.gradle.MinecraftConfigurations
 plugins {
     `java-library`
     id("fabric-loom")
-    id("io.github.juuxel.loom-quiltflower")
+    id("io.github.juuxel.loom-vineflower")
     id("cc-tweaked.java-convention")
 }
 

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

@@ -56,15 +56,18 @@ repositories {
         if (fg != null) forRepositories(fg.repository)
 
         filter {
-            includeGroup("org.squiddev")
             includeGroup("cc.tweaked")
             // Things we mirror
+            includeGroup("commoble.morered")
             includeGroup("dev.architectury")
+            includeGroup("dev.emi")
             includeGroup("maven.modrinth")
-            includeGroup("me.shedaniel")
             includeGroup("me.shedaniel.cloth")
+            includeGroup("me.shedaniel")
             includeGroup("mezz.jei")
+            includeGroup("org.teavm")
             includeModule("com.terraformersmc", "modmenu")
+            includeModule("me.lucko", "fabric-permissions-api")
         }
     }
 }
@@ -96,7 +99,10 @@ sourceSets.all {
             check("FutureReturnValueIgnored", CheckSeverity.OFF) // Too many false positives with Netty
 
             check("NullAway", CheckSeverity.ERROR)
-            option("NullAway:AnnotatedPackages", listOf("dan200.computercraft", "net.fabricmc.fabric.api").joinToString(","))
+            option(
+                "NullAway:AnnotatedPackages",
+                listOf("dan200.computercraft", "cc.tweaked", "net.fabricmc.fabric.api").joinToString(","),
+            )
             option("NullAway:ExcludedFieldAnnotations", listOf("org.spongepowered.asm.mixin.Shadow").joinToString(","))
             option("NullAway:CastToNonNullMethod", "dan200.computercraft.core.util.Nullability.assertNonNull")
             option("NullAway:CheckOptionalEmptiness")
@@ -171,6 +177,12 @@ project.plugins.withType(CCTweakedPlugin::class.java) {
     }
 }
 
+tasks.register("checkstyle") {
+    description = "Run Checkstyle on all sources"
+    group = LifecycleBasePlugin.VERIFICATION_GROUP
+    dependsOn(tasks.withType(Checkstyle::class.java))
+}
+
 spotless {
     encoding = StandardCharsets.UTF_8
     lineEndings = LineEnding.UNIX
@@ -188,6 +200,7 @@ spotless {
 
     val ktlintConfig = mapOf(
         "ktlint_standard_no-wildcard-imports" to "disabled",
+        "ktlint_standard_class-naming" to "disabled",
         "ij_kotlin_allow_trailing_comma" to "true",
         "ij_kotlin_allow_trailing_comma_on_call_site" to "true",
     )

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

@@ -173,7 +173,7 @@ abstract class CCTweakedExtension(
     }
 
     fun <T> jacoco(task: NamedDomainObjectProvider<T>) where T : Task, T : JavaForkOptions {
-        val classDump = project.buildDir.resolve("jacocoClassDump/${task.name}")
+        val classDump = project.layout.buildDirectory.dir("jacocoClassDump/${task.name}")
         val reportTaskName = "jacoco${task.name.capitalized()}Report"
 
         val jacoco = project.extensions.getByType(JacocoPluginExtension::class.java)
@@ -185,7 +185,7 @@ abstract class CCTweakedExtension(
             jacoco.applyTo(this)
             extensions.configure(JacocoTaskExtension::class.java) {
                 includes = listOf("dan200.computercraft.*")
-                classDumpDir = classDump
+                classDumpDir = classDump.get().asFile
 
                 // Older versions of modlauncher don't include a protection domain (and thus no code
                 // source). Jacoco skips such classes by default, so we need to explicitly include them.

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

@@ -9,6 +9,10 @@ import org.gradle.api.Project
 import org.gradle.api.plugins.JavaPlugin
 import org.gradle.api.plugins.JavaPluginExtension
 import org.gradle.jvm.toolchain.JavaLanguageVersion
+import org.gradle.plugins.ide.idea.model.IdeaModel
+import org.jetbrains.gradle.ext.IdeaExtPlugin
+import org.jetbrains.gradle.ext.runConfigurations
+import org.jetbrains.gradle.ext.settings
 
 /**
  * Configures projects to match a shared configuration.
@@ -21,6 +25,20 @@ class CCTweakedPlugin : Plugin<Project> {
             val sourceSets = project.extensions.getByType(JavaPluginExtension::class.java).sourceSets
             cct.sourceDirectories.add(SourceSetReference.internal(sourceSets.getByName("main")))
         }
+
+        project.plugins.withType(IdeaExtPlugin::class.java) { extendIdea(project) }
+    }
+
+    /**
+     * Extend the [IdeaExtPlugin] plugin's `runConfiguration` container to also support [JUnitExt].
+     */
+    private fun extendIdea(project: Project) {
+        val ideaModel = project.extensions.findByName("idea") as IdeaModel? ?: return
+        val ideaProject = ideaModel.project ?: return
+
+        ideaProject.settings.runConfigurations {
+            registerFactory(JUnitExt::class.java) { name -> project.objects.newInstance(JUnitExt::class.java, name) }
+        }
     }
 
     companion object {

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

@@ -4,6 +4,7 @@
 
 package cc.tweaked.gradle
 
+import org.gradle.api.file.DirectoryProperty
 import org.gradle.api.provider.Property
 import org.gradle.api.tasks.AbstractExecTask
 import org.gradle.api.tasks.OutputDirectory
@@ -11,5 +12,5 @@ import java.io.File
 
 abstract class ExecToDir : AbstractExecTask<ExecToDir>(ExecToDir::class.java) {
     @get:OutputDirectory
-    abstract val output: Property<File>
+    abstract val output: DirectoryProperty
 }

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

@@ -5,6 +5,8 @@
 package cc.tweaked.gradle
 
 import org.gradle.api.artifacts.dsl.DependencyHandler
+import org.gradle.api.file.FileSystemLocation
+import org.gradle.api.file.FileSystemLocationProperty
 import org.gradle.api.provider.Property
 import org.gradle.api.provider.Provider
 import org.gradle.api.tasks.JavaExec
@@ -124,3 +126,6 @@ class CloseScope : AutoCloseable {
 
 /** Proxy method to avoid overload ambiguity. */
 fun <T> Property<T>.setProvider(provider: Provider<out T>) = set(provider)
+
+/** Short-cut method to get the absolute path of a [FileSystemLocation] provider. */
+fun Provider<out FileSystemLocation>.getAbsolutePath(): String = get().asFile.absolutePath

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

@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package cc.tweaked.gradle
+
+import org.jetbrains.gradle.ext.JUnit
+import javax.inject.Inject
+
+/**
+ * A version of [JUnit] with a functional [className].
+ *
+ * See [#92](https://github.com/JetBrains/gradle-idea-ext-plugin/issues/92).
+ */
+open class JUnitExt @Inject constructor(nameParam: String) : JUnit(nameParam) {
+    override fun toMap(): MutableMap<String, *> {
+        val map = HashMap(super.toMap())
+        // Should be "class" instead of "className".
+        // See https://github.com/JetBrains/intellij-community/blob/9ba394021dc73a3926f13d6d6cdf434f9ee7046d/plugins/junit/src/com/intellij/execution/junit/JUnitRunConfigurationImporter.kt#L39
+        map["class"] = className
+        return map
+    }
+}

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
@@ -53,6 +54,25 @@ abstract class ClientJavaExec : JavaExec() {
     @get:OutputFile
     val testResults = project.layout.buildDirectory.file("test-results/$name.xml")
 
+    private fun setTestProperties() {
+        if (!clientDebug) systemProperty("cctest.client", "")
+        if (renderdoc) environment("LD_PRELOAD", "/usr/lib/librenderdoc.so")
+        systemProperty("cctest.gametest-report", testResults.get().asFile.absoluteFile)
+        workingDir(project.layout.buildDirectory.dir("gametest/$name"))
+    }
+
+    init {
+        setTestProperties()
+    }
+
+    /**
+     * Set this task to run a given [RunConfig].
+     */
+    fun setRunConfig(config: RunConfig) {
+        (this as JavaExec).setRunConfig(config)
+        setTestProperties() // setRunConfig may clobber some properties, ensure everything is set.
+    }
+
     /**
      * Copy configuration from a task with the given name.
      */
@@ -64,11 +84,7 @@ abstract class ClientJavaExec : JavaExec() {
     fun copyFrom(task: JavaExec) {
         for (dep in task.dependsOn) dependsOn(dep)
         task.copyToFull(this)
-
-        if (!clientDebug) systemProperty("cctest.client", "")
-        if (renderdoc) environment("LD_PRELOAD", "/usr/lib/librenderdoc.so")
-        systemProperty("cctest.gametest-report", testResults.get().asFile.absoluteFile)
-        workingDir(project.buildDir.resolve("gametest").resolve(name))
+        setTestProperties() // copyToFull may clobber some properties, ensure everything is set.
     }
 
     /**

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

@@ -30,41 +30,22 @@ internal fun setRunConfigInternal(project: Project, spec: JavaExecSpec, config:
     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.
-    fun lazyTokens(): MutableMap<String, Supplier<String>> {
-        return RunConfigGenerator.configureTokensLazy(
-            project, config, RunConfigGenerator.mapModClassesToGradle(project, config),
-            originalTask.get().minecraftArtifacts.files,
-            originalTask.get().runtimeClasspathArtifacts.files,
-        )
-    }
+    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()
+            RunConfigGenerator.getArgsStream(config, lazyTokens, false).toList()
         },
     )
     spec.jvmArgumentProviders.add(
         CommandLineArgumentProvider {
-            val lazyTokens = lazyTokens()
             (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)}" }
         },
     )
 
-    // We can't configure environment variables lazily, so we do these now with a more minimal lazyTokens set.
-    val lazyTokens = mutableMapOf<String, Supplier<String>>()
-    for ((k, v) in config.tokens) lazyTokens[k] = Supplier<String> { v }
-    for ((k, v) in config.lazyTokens) lazyTokens[k] = v
-    lazyTokens.compute(
-        "source_roots",
-        { _, sourceRoots ->
-            Supplier<String> {
-                val modClasses = RunConfigGenerator.mapModClassesToGradle(project, config)
-                (when (sourceRoots) {
-                    null -> modClasses
-                    else -> Stream.concat<String>(sourceRoots.get().split(File.pathSeparator).stream(), modClasses)
-                }).distinct().collect(Collectors.joining(File.pathSeparator))
-            }
-        },
-    )
     for ((key, value) in config.environment) spec.environment(key, config.replace(lazyTokens, value))
 }

config/checkstyle/checkstyle.xml

@@ -112,7 +112,9 @@ SPDX-License-Identifier: MPL-2.0
         <module name="LambdaParameterName" />
         <module name="LocalFinalVariableName" />
         <module name="LocalVariableName" />
-        <module name="MemberName" />
+        <module name="MemberName">
+            <property name="format" value="^\$?[a-z][a-zA-Z0-9]*$" />
+        </module>
         <module name="MethodName">
             <property name="format" value="^(computercraft\$)?[a-z][a-zA-Z0-9]*$" />
         </module>
@@ -122,7 +124,7 @@ SPDX-License-Identifier: MPL-2.0
         </module>
         <module name="ParameterName" />
         <module name="StaticVariableName">
-            <property name="format" value="^[a-z][a-zA-Z0-9]*|CAPABILITY(_[A-Z_]+)?$" />
+            <property name="format" value="^[a-z][a-zA-Z0-9]*$" />
         </module>
         <module name="TypeName" />
 

config/checkstyle/suppressions.xml

@@ -16,4 +16,10 @@ SPDX-License-Identifier: MPL-2.0
 
     <!-- The commands API is documented in Lua. -->
     <suppress checks="SummaryJavadocCheck" files=".*[\\/]CommandAPI.java" />
+
+    <!-- Allow putting files in other packages if they look like our TeaVM stubs. -->
+    <suppress checks="PackageName" files=".*[\\/]T[A-Za-z]+.java" />
+
+    <!-- Allow underscores in our test classes. -->
+    <suppress checks="MethodName" files=".*Contract.java" />
 </suppressions>

doc/events/alarm.md

@@ -9,11 +9,11 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{alarm} event is fired when an alarm started with @{os.setAlarm} completes.
+The [`alarm`] event is fired when an alarm started with [`os.setAlarm`] completes.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{number}: The ID of the alarm that finished.
+1. [`string`]: The event name.
+2. [`number`]: The ID of the alarm that finished.
 
 ## Example
 Starts a timer and then waits for it to complete.

doc/events/char.md

@@ -6,18 +6,18 @@ see: key To listen to any key press.
 <!--
 SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 
-SPDX-License-Identifier: LicenseRef-CCPL
+SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{char} event is fired when a character is typed on the keyboard.
+The [`char`] event is fired when a character is typed on the keyboard.
 
-The @{char} event is different to a key press. Sometimes multiple key presses may result in one character being
+The [`char`] event is different to a key press. Sometimes multiple key presses may result in one character being
 typed (for instance, on some European keyboards). Similarly, some keys (e.g. <kbd>Ctrl</kbd>) do not have any
-corresponding character. The @{key} should be used if you want to listen to key presses themselves.
+corresponding character. The [`key`] should be used if you want to listen to key presses themselves.
 
 ## Return values
-1. @{string}: The event name.
-2. @{string}: The string representing the character that was pressed.
+1. [`string`]: The event name.
+2. [`string`]: The string representing the character that was pressed.
 
 
 ## Example

doc/events/computer_command.md

@@ -8,11 +8,11 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{computer_command} event is fired when the `/computercraft queue` command is run for the current computer.
+The [`computer_command`] event is fired when the `/computercraft queue` command is run for the current computer.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}<abbr title="Variable number of arguments">&hellip;</abbr>: The arguments passed to the command.
+1. [`string`]: The event name.
+2. [`string`]<abbr title="Variable number of arguments">&hellip;</abbr>: The arguments passed to the command.
 
 ## Example
 Prints the contents of messages sent:

doc/events/disk.md

@@ -9,11 +9,11 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{disk} event is fired when a disk is inserted into an adjacent or networked disk drive.
+The [`disk`] event is fired when a disk is inserted into an adjacent or networked disk drive.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The side of the disk drive that had a disk inserted.
+1. [`string`]: The event name.
+2. [`string`]: The side of the disk drive that had a disk inserted.
 
 ## Example
 Prints a message when a disk is inserted:

doc/events/disk_eject.md

@@ -9,11 +9,11 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{disk_eject} event is fired when a disk is removed from an adjacent or networked disk drive.
+The [`disk_eject`] event is fired when a disk is removed from an adjacent or networked disk drive.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The side of the disk drive that had a disk removed.
+1. [`string`]: The event name.
+2. [`string`]: The side of the disk drive that had a disk removed.
 
 ## Example
 Prints a message when a disk is removed:

doc/events/file_transfer.md

@@ -9,15 +9,15 @@ SPDX-FileCopyrightText: 2022 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{file_transfer} event is queued when a user drags-and-drops a file on an open computer.
+The [`file_transfer`] event is queued when a user drags-and-drops a file on an open computer.
 
-This event contains a single argument of type @{TransferredFiles}, which can be used to @{TransferredFiles.getFiles|get
-the files to be transferred}. Each file returned is a @{fs.BinaryReadHandle|binary file handle} with an additional
-@{TransferredFile.getName|getName} method.
+This event contains a single argument of type [`TransferredFiles`], which can be used to [get the files to be
+transferred][`TransferredFiles.getFiles`]. Each file returned is a [binary file handle][`fs.ReadHandle`] with an
+additional [getName][`TransferredFile.getName`] method.
 
 ## Return values
-1. @{string}: The event name
-2. @{TransferredFiles}: The list of transferred files.
+1. [`string`]: The event name
+2. [`TransferredFiles`]: The list of transferred files.
 
 ## Example
 Waits for a user to drop files on top of the computer, then prints the list of files and the size of each file.
@@ -29,7 +29,7 @@ for _, file in ipairs(files.getFiles()) do
   local size = file.seek("end")
   file.seek("set", 0)
 
-  print(file.getName() .. " " .. file.getSize())
+  print(file.getName() .. " " .. size)
 end
 ```
 

doc/events/http_check.md

@@ -9,12 +9,12 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{http_check} event is fired when a URL check finishes.
+The [`http_check`] event is fired when a URL check finishes.
 
-This event is normally handled inside @{http.checkURL}, but it can still be seen when using @{http.checkURLAsync}.
+This event is normally handled inside [`http.checkURL`], but it can still be seen when using [`http.checkURLAsync`].
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The URL requested to be checked.
-3. @{boolean}: Whether the check succeeded.
-4. <span class="type">@{string}|@{nil}</span>: If the check failed, a reason explaining why the check failed.
+1. [`string`]: The event name.
+2. [`string`]: The URL requested to be checked.
+3. [`boolean`]: Whether the check succeeded.
+4. <span class="type">[`string`]|[`nil`]</span>: If the check failed, a reason explaining why the check failed.

doc/events/http_failure.md

@@ -9,15 +9,15 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{http_failure} event is fired when an HTTP request fails.
+The [`http_failure`] event is fired when an HTTP request fails.
 
-This event is normally handled inside @{http.get} and @{http.post}, but it can still be seen when using @{http.request}.
+This event is normally handled inside [`http.get`] and [`http.post`], but it can still be seen when using [`http.request`].
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The URL of the site requested.
-3. @{string}: An error describing the failure.
-4. <span class="type">@{http.Response}|@{nil}</span>: A response handle if the connection succeeded, but the server's
+1. [`string`]: The event name.
+2. [`string`]: The URL of the site requested.
+3. [`string`]: An error describing the failure.
+4. <span class="type">[`http.Response`]|[`nil`]</span>: A response handle if the connection succeeded, but the server's
    response indicated failure.
 
 ## Example

doc/events/http_success.md

@@ -9,14 +9,14 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{http_success} event is fired when an HTTP request returns successfully.
+The [`http_success`] event is fired when an HTTP request returns successfully.
 
-This event is normally handled inside @{http.get} and @{http.post}, but it can still be seen when using @{http.request}.
+This event is normally handled inside [`http.get`] and [`http.post`], but it can still be seen when using [`http.request`].
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The URL of the site requested.
-3. @{http.Response}: The successful HTTP response.
+1. [`string`]: The event name.
+2. [`string`]: The URL of the site requested.
+3. [`http.Response`]: The successful HTTP response.
 
 ## Example
 Prints the content of a website (this may fail if the request fails):

doc/events/key.md

@@ -5,21 +5,21 @@ module: [kind=event] key
 <!--
 SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 
-SPDX-License-Identifier: LicenseRef-CCPL
+SPDX-License-Identifier: MPL-2.0
 -->
 
 This event is fired when any key is pressed while the terminal is focused.
 
 This event returns a numerical "key code" (for instance, <kbd>F1</kbd> is 290). This value may vary between versions and
-so it is recommended to use the constants in the @{keys} API rather than hard coding numeric values.
+so it is recommended to use the constants in the [`keys`] API rather than hard coding numeric values.
 
-If the button pressed represented a printable character, then the @{key} event will be followed immediately by a @{char}
-event. If you are consuming text input, use a @{char} event instead!
+If the button pressed represented a printable character, then the [`key`] event will be followed immediately by a [`char`]
+event. If you are consuming text input, use a [`char`] event instead!
 
 ## Return values
-1. @{string}: The event name.
-2. @{number}: The numerical key value of the key pressed.
-3. @{boolean}: Whether the key event was generated while holding the key (@{true}), rather than pressing it the first time (@{false}).
+1. [`string`]: The event name.
+2. [`number`]: The numerical key value of the key pressed.
+3. [`boolean`]: Whether the key event was generated while holding the key ([`true`]), rather than pressing it the first time ([`false`]).
 
 ## Example
 Prints each key when the user presses it, and if the key is being held.

doc/events/key_up.md

@@ -6,20 +6,20 @@ see: keys For a lookup table of the given keys.
 <!--
 SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 
-SPDX-License-Identifier: LicenseRef-CCPL
+SPDX-License-Identifier: MPL-2.0
 -->
 
 Fired whenever a key is released (or the terminal is closed while a key was being pressed).
 
 This event returns a numerical "key code" (for instance, <kbd>F1</kbd> is 290). This value may vary between versions and
-so it is recommended to use the constants in the @{keys} API rather than hard coding numeric values.
+so it is recommended to use the constants in the [`keys`] API rather than hard coding numeric values.
 
 ## Return values
-1. @{string}: The event name.
-2. @{number}: The numerical key value of the key pressed.
+1. [`string`]: The event name.
+2. [`number`]: The numerical key value of the key pressed.
 
 ## Example
-Prints each key released on the keyboard whenever a @{key_up} event is fired.
+Prints each key released on the keyboard whenever a [`key_up`] event is fired.
 
 ```lua
 while true do

doc/events/modem_message.md

@@ -8,18 +8,18 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{modem_message} event is fired when a message is received on an open channel on any @{modem}.
+The [`modem_message`] event is fired when a message is received on an open channel on any [`modem`].
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The side of the modem that received the message.
-3. @{number}: The channel that the message was sent on.
-4. @{number}: The reply channel set by the sender.
-5. @{any}: The message as sent by the sender.
-6. <span class="type">@{number}|@{nil}</span>: The distance between the sender and the receiver in blocks, or @{nil} if the message was sent between dimensions.
+1. [`string`]: The event name.
+2. [`string`]: The side of the modem that received the message.
+3. [`number`]: The channel that the message was sent on.
+4. [`number`]: The reply channel set by the sender.
+5. [`any`]: The message as sent by the sender.
+6. <span class="type">[`number`]|[`nil`]</span>: The distance between the sender and the receiver in blocks, or [`nil`] if the message was sent between dimensions.
 
 ## Example
-Wraps a @{modem} peripheral, opens channel 0 for listening, and prints all received messages.
+Wraps a [`modem`] peripheral, opens channel 0 for listening, and prints all received messages.
 
 ```lua
 local modem = peripheral.find("modem") or error("No modem attached", 0)

doc/events/monitor_resize.md

@@ -8,11 +8,11 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{monitor_resize} event is fired when an adjacent or networked monitor's size is changed.
+The [`monitor_resize`] event is fired when an adjacent or networked monitor's size is changed.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The side or network ID of the monitor that was resized.
+1. [`string`]: The event name.
+2. [`string`]: The side or network ID of the monitor that was resized.
 
 ## Example
 Prints a message when a monitor is resized:

doc/events/monitor_touch.md

@@ -8,13 +8,13 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{monitor_touch} event is fired when an adjacent or networked Advanced Monitor is right-clicked.
+The [`monitor_touch`] event is fired when an adjacent or networked Advanced Monitor is right-clicked.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The side or network ID of the monitor that was touched.
-3. @{number}: The X coordinate of the touch, in characters.
-4. @{number}: The Y coordinate of the touch, in characters.
+1. [`string`]: The event name.
+2. [`string`]: The side or network ID of the monitor that was touched.
+3. [`number`]: The X coordinate of the touch, in characters.
+4. [`number`]: The Y coordinate of the touch, in characters.
 
 ## Example
 Prints a message when a monitor is touched:

doc/events/mouse_click.md

@@ -5,20 +5,20 @@ module: [kind=event] mouse_click
 <!--
 SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 
-SPDX-License-Identifier: LicenseRef-CCPL
+SPDX-License-Identifier: MPL-2.0
 -->
 
 This event is fired when the terminal is clicked with a mouse. This event is only fired on advanced computers (including
 advanced turtles and pocket computers).
 
 ## Return values
-1. @{string}: The event name.
-2. @{number}: The mouse button that was clicked.
-3. @{number}: The X-coordinate of the click.
-4. @{number}: The Y-coordinate of the click.
+1. [`string`]: The event name.
+2. [`number`]: The mouse button that was clicked.
+3. [`number`]: The X-coordinate of the click.
+4. [`number`]: The Y-coordinate of the click.
 
 ## Mouse buttons
-Several mouse events (@{mouse_click}, @{mouse_up}, @{mouse_scroll}) contain a "mouse button" code. This takes a
+Several mouse events ([`mouse_click`], [`mouse_up`], [`mouse_scroll`]) contain a "mouse button" code. This takes a
 numerical value depending on which button on your mouse was last pressed when this event occurred.
 
 | Button Code | Mouse Button  |

doc/events/mouse_drag.md

@@ -6,16 +6,16 @@ see: mouse_click For when a mouse button is initially pressed.
 <!--
 SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 
-SPDX-License-Identifier: LicenseRef-CCPL
+SPDX-License-Identifier: MPL-2.0
 -->
 
 This event is fired every time the mouse is moved while a mouse button is being held.
 
 ## Return values
-1. @{string}: The event name.
-2. @{number}: The [mouse button](mouse_click.html#Mouse_buttons) that is being pressed.
-3. @{number}: The X-coordinate of the mouse.
-4. @{number}: The Y-coordinate of the mouse.
+1. [`string`]: The event name.
+2. [`number`]: The [mouse button](mouse_click.html#Mouse_buttons) that is being pressed.
+3. [`number`]: The X-coordinate of the mouse.
+4. [`number`]: The Y-coordinate of the mouse.
 
 ## Example
 Print the button and the coordinates whenever the mouse is dragged.

doc/events/mouse_scroll.md

@@ -5,16 +5,16 @@ module: [kind=event] mouse_scroll
 <!--
 SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 
-SPDX-License-Identifier: LicenseRef-CCPL
+SPDX-License-Identifier: MPL-2.0
 -->
 
 This event is fired when a mouse wheel is scrolled in the terminal.
 
 ## Return values
-1. @{string}: The event name.
-2. @{number}: The direction of the scroll. (-1 = up, 1 = down)
-3. @{number}: The X-coordinate of the mouse when scrolling.
-4. @{number}: The Y-coordinate of the mouse when scrolling.
+1. [`string`]: The event name.
+2. [`number`]: The direction of the scroll. (-1 = up, 1 = down)
+3. [`number`]: The X-coordinate of the mouse when scrolling.
+4. [`number`]: The Y-coordinate of the mouse when scrolling.
 
 ## Example
 Prints the direction of each scroll, and the position of the mouse at the time.

doc/events/mouse_up.md

@@ -5,16 +5,16 @@ module: [kind=event] mouse_up
 <!--
 SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 
-SPDX-License-Identifier: LicenseRef-CCPL
+SPDX-License-Identifier: MPL-2.0
 -->
 
 This event is fired when a mouse button is released or a held mouse leaves the computer's terminal.
 
 ## Return values
-1. @{string}: The event name.
-2. @{number}: The [mouse button](mouse_click.html#Mouse_buttons) that was released.
-3. @{number}: The X-coordinate of the mouse.
-4. @{number}: The Y-coordinate of the mouse.
+1. [`string`]: The event name.
+2. [`number`]: The [mouse button](mouse_click.html#Mouse_buttons) that was released.
+3. [`number`]: The X-coordinate of the mouse.
+4. [`number`]: The Y-coordinate of the mouse.
 
 ## Example
 Prints the coordinates and button number whenever the mouse is released.

doc/events/paste.md

@@ -8,11 +8,11 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{paste} event is fired when text is pasted into the computer through Ctrl-V (or ⌘V on Mac).
+The [`paste`] event is fired when text is pasted into the computer through Ctrl-V (or ⌘V on Mac).
 
 ## Return values
-1. @{string}: The event name.
-2. @{string} The text that was pasted.
+1. [`string`]: The event name.
+2. [`string`] The text that was pasted.
 
 ## Example
 Prints pasted text:

doc/events/peripheral.md

@@ -9,11 +9,11 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{peripheral} event is fired when a peripheral is attached on a side or to a modem.
+The [`peripheral`] event is fired when a peripheral is attached on a side or to a modem.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The side the peripheral was attached to.
+1. [`string`]: The event name.
+2. [`string`]: The side the peripheral was attached to.
 
 ## Example
 Prints a message when a peripheral is attached:

doc/events/peripheral_detach.md

@@ -9,11 +9,11 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{peripheral_detach} event is fired when a peripheral is detached from a side or from a modem.
+The [`peripheral_detach`] event is fired when a peripheral is detached from a side or from a modem.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The side the peripheral was detached from.
+1. [`string`]: The event name.
+2. [`string`]: The side the peripheral was detached from.
 
 ## Example
 Prints a message when a peripheral is detached:

doc/events/rednet_message.md

@@ -10,17 +10,17 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{rednet_message} event is fired when a message is sent over Rednet.
+The [`rednet_message`] event is fired when a message is sent over Rednet.
 
-This event is usually handled by @{rednet.receive}, but it can also be pulled manually.
+This event is usually handled by [`rednet.receive`], but it can also be pulled manually.
 
-@{rednet_message} events are sent by @{rednet.run} in the top-level coroutine in response to @{modem_message} events. A @{rednet_message} event is always preceded by a @{modem_message} event. They are generated inside CraftOS rather than being sent by the ComputerCraft machine.
+[`rednet_message`] events are sent by [`rednet.run`] in the top-level coroutine in response to [`modem_message`] events. A [`rednet_message`] event is always preceded by a [`modem_message`] event. They are generated inside CraftOS rather than being sent by the ComputerCraft machine.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{number}: The ID of the sending computer.
-3. @{any}: The message sent.
-4. <span class="type">@{string}|@{nil}</span>: The protocol of the message, if provided.
+1. [`string`]: The event name.
+2. [`number`]: The ID of the sending computer.
+3. [`any`]: The message sent.
+4. <span class="type">[`string`]|[`nil`]</span>: The protocol of the message, if provided.
 
 ## Example
 Prints a message when one is sent:

doc/events/redstone.md

@@ -8,10 +8,10 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{event!redstone} event is fired whenever any redstone inputs on the computer change.
+The [`event!redstone`] event is fired whenever any redstone inputs on the computer change.
 
 ## Return values
-1. @{string}: The event name.
+1. [`string`]: The event name.
 
 ## Example
 Prints a message when a redstone input changes:

doc/events/speaker_audio_empty.md

@@ -10,13 +10,13 @@ SPDX-License-Identifier: MPL-2.0
 -->
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The name of the speaker which is available to play more audio.
+1. [`string`]: The event name.
+2. [`string`]: The name of the speaker which is available to play more audio.
 
 
 ## Example
-This uses @{io.lines} to read audio data in blocks of 16KiB from "example_song.dfpwm", and then attempts to play it
-using @{speaker.playAudio}. If the speaker's buffer is full, it waits for an event and tries again.
+This uses [`io.lines`] to read audio data in blocks of 16KiB from "example_song.dfpwm", and then attempts to play it
+using [`speaker.playAudio`]. If the speaker's buffer is full, it waits for an event and tries again.
 
 ```lua {data-peripheral=speaker}
 local dfpwm = require("cc.audio.dfpwm")

doc/events/task_complete.md

@@ -9,13 +9,13 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{task_complete} event is fired when an asynchronous task completes. This is usually handled inside the function call that queued the task; however, functions such as @{commands.execAsync} return immediately so the user can wait for completion.
+The [`task_complete`] event is fired when an asynchronous task completes. This is usually handled inside the function call that queued the task; however, functions such as [`commands.execAsync`] return immediately so the user can wait for completion.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{number}: The ID of the task that completed.
-3. @{boolean}: Whether the command succeeded.
-4. @{string}: If the command failed, an error message explaining the failure. (This is not present if the command succeeded.)
+1. [`string`]: The event name.
+2. [`number`]: The ID of the task that completed.
+3. [`boolean`]: Whether the command succeeded.
+4. [`string`]: If the command failed, an error message explaining the failure. (This is not present if the command succeeded.)
 5. <abbr title="Variable number of arguments">&hellip;</abbr>: Any parameters returned from the command.
 
 ## Example

doc/events/term_resize.md

@@ -8,15 +8,15 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{term_resize} event is fired when the main terminal is resized. For instance:
- - When a the tab bar is shown or hidden in @{multishell}.
+The [`term_resize`] event is fired when the main terminal is resized. For instance:
+ - When a the tab bar is shown or hidden in [`multishell`].
  - When the terminal is redirected to a monitor via the "monitor" program and the monitor is resized.
 
 When this event fires, some parts of the terminal may have been moved or deleted. Simple terminal programs (those
-not using @{term.setCursorPos}) can ignore this event, but more complex GUI programs should redraw the entire screen.
+not using [`term.setCursorPos`]) can ignore this event, but more complex GUI programs should redraw the entire screen.
 
 ## Return values
-1. @{string}: The event name.
+1. [`string`]: The event name.
 
 ## Example
 Print a message each time the terminal is resized.

doc/events/terminate.md

@@ -8,14 +8,14 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{terminate} event is fired when <kbd>Ctrl-T</kbd> is held down.
+The [`terminate`] event is fired when <kbd>Ctrl-T</kbd> is held down.
 
-This event is normally handled by @{os.pullEvent}, and will not be returned. However, @{os.pullEventRaw} will return this event when fired.
+This event is normally handled by [`os.pullEvent`], and will not be returned. However, [`os.pullEventRaw`] will return this event when fired.
 
-@{terminate} will be sent even when a filter is provided to @{os.pullEventRaw}. When using @{os.pullEventRaw} with a filter, make sure to check that the event is not @{terminate}.
+[`terminate`] will be sent even when a filter is provided to [`os.pullEventRaw`]. When using [`os.pullEventRaw`] with a filter, make sure to check that the event is not [`terminate`].
 
 ## Return values
-1. @{string}: The event name.
+1. [`string`]: The event name.
 
 ## Example
 Prints a message when Ctrl-T is held:

doc/events/timer.md

@@ -9,11 +9,11 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{timer} event is fired when a timer started with @{os.startTimer} completes.
+The [`timer`] event is fired when a timer started with [`os.startTimer`] completes.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{number}: The ID of the timer that finished.
+1. [`string`]: The event name.
+2. [`number`]: The ID of the timer that finished.
 
 ## Example
 Start and wait for a timer to finish.

doc/events/turtle_inventory.md

@@ -8,10 +8,10 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{turtle_inventory} event is fired when a turtle's inventory is changed.
+The [`turtle_inventory`] event is fired when a turtle's inventory is changed.
 
 ## Return values
-1. @{string}: The event name.
+1. [`string`]: The event name.
 
 ## Example
 Prints a message when the inventory is changed:

doc/events/websocket_closed.md

@@ -8,11 +8,20 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{websocket_closed} event is fired when an open WebSocket connection is closed.
+The [`websocket_closed`] event is fired when an open WebSocket connection is closed.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The URL of the WebSocket that was closed.
+1. [`string`]: The event name.
+2. [`string`]: The URL of the WebSocket that was closed.
+3. <span class="type">[`string`]|[`nil`]</span>: The [server-provided reason][close_reason]
+   the websocket was closed. This will be [`nil`] if the connection was closed
+   abnormally.
+4. <span class="type">[`number`]|[`nil`]</span>: The [connection close code][close_code],
+   indicating why the socket was closed. This will be [`nil`] if the connection
+   was closed abnormally.
+
+[close_reason]: https://www.rfc-editor.org/rfc/rfc6455.html#section-7.1.6 "The WebSocket Connection Close Reason, RFC 6455"
+[close_code]: https://www.rfc-editor.org/rfc/rfc6455.html#section-7.1.5 "The WebSocket Connection Close Code, RFC 6455"
 
 ## Example
 Prints a message when a WebSocket is closed (this may take a minute):

doc/events/websocket_failure.md

@@ -9,14 +9,14 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{websocket_failure} event is fired when a WebSocket connection request fails.
+The [`websocket_failure`] event is fired when a WebSocket connection request fails.
 
-This event is normally handled inside @{http.websocket}, but it can still be seen when using @{http.websocketAsync}.
+This event is normally handled inside [`http.websocket`], but it can still be seen when using [`http.websocketAsync`].
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The URL of the site requested.
-3. @{string}: An error describing the failure.
+1. [`string`]: The event name.
+2. [`string`]: The URL of the site requested.
+3. [`string`]: An error describing the failure.
 
 ## Example
 Prints an error why the website cannot be contacted:

doc/events/websocket_message.md

@@ -8,15 +8,15 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{websocket_message} event is fired when a message is received on an open WebSocket connection.
+The [`websocket_message`] event is fired when a message is received on an open WebSocket connection.
 
-This event is normally handled by @{http.Websocket.receive}, but it can also be pulled manually.
+This event is normally handled by [`http.Websocket.receive`], but it can also be pulled manually.
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The URL of the WebSocket.
-3. @{string}: The contents of the message.
-4. @{boolean}: Whether this is a binary message.
+1. [`string`]: The event name.
+2. [`string`]: The URL of the WebSocket.
+3. [`string`]: The contents of the message.
+4. [`boolean`]: Whether this is a binary message.
 
 ## Example
 Prints a message sent by a WebSocket:

doc/events/websocket_success.md

@@ -9,14 +9,14 @@ SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 SPDX-License-Identifier: MPL-2.0
 -->
 
-The @{websocket_success} event is fired when a WebSocket connection request returns successfully.
+The [`websocket_success`] event is fired when a WebSocket connection request returns successfully.
 
-This event is normally handled inside @{http.websocket}, but it can still be seen when using @{http.websocketAsync}.
+This event is normally handled inside [`http.websocket`], but it can still be seen when using [`http.websocketAsync`].
 
 ## Return Values
-1. @{string}: The event name.
-2. @{string}: The URL of the site.
-3. @{http.Websocket}: The handle for the WebSocket.
+1. [`string`]: The event name.
+2. [`string`]: The URL of the site.
+3. [`http.Websocket`]: The handle for the WebSocket.
 
 ## Example
 Prints the content of a website (this may fail if the request fails):

doc/guides/gps_setup.md

@@ -9,7 +9,7 @@ SPDX-License-Identifier: MPL-2.0
 -->
 
 # Setting up GPS
-The @{gps} API allows computers and turtles to find their current position using wireless modems.
+The [`gps`] API allows computers and turtles to find their current position using wireless modems.
 
 In order to use GPS, you'll need to set up multiple *GPS hosts*. These are computers running the special `gps host`
 program, which tell other computers the host's position. Several hosts running together are known as a *GPS
@@ -19,22 +19,21 @@ In order to give the best results, a GPS constellation needs at least four compu
 constellation is redundant, but it does not cause problems.
 
 ## Building a GPS constellation
-![An example GPS constellation.](/images/gps-constellation-example.png){.big-image}
+<img alt="An example GPS constellation." src="/images/gps-constellation-example.png" class="big-image" />
 
 We are going to build our GPS constellation as shown in the image above. You will need 4 computers and either 4 wireless
 modems or 4 ender modems. Try not to mix ender and wireless modems together as you might get some odd behavior when your
 requesting computers are out of range.
 
-:::tip Ender modems vs wireless modems
-Ender modems have a very large range, which makes them very useful for setting up GPS hosts. If you do this then you
-will likely only need one GPS constellation for the whole dimension (such as the Overworld or Nether).
-
-If you do use wireless modems then you may find that you need multiple GPS constellations to cover your needs.
-
-A computer needs a wireless or ender modem and to be in range of a GPS constellation that is in the same dimension as it
-to use the GPS API. The reason for this is that ComputerCraft mimics real-life GPS by making use of the distance
-parameter of @{modem_message|modem messages} and some maths.
-:::
+> [Ender modems vs wireless modems][!TIP]
+> Ender modems have a very large range, which makes them very useful for setting up GPS hosts. If you do this then you
+> will likely only need one GPS constellation for the whole dimension (such as the Overworld or Nether).
+>
+> If you do use wireless modems then you may find that you need multiple GPS constellations to cover your needs.
+>
+> A computer needs a wireless or ender modem and to be in range of a GPS constellation that is in the same dimension as
+> it to use the GPS API. The reason for this is that ComputerCraft mimics real-life GPS by making use of the distance
+> parameter of [modem messages][`modem_message`] and some maths.
 
 Locate where you want to place your GPS constellation. You will need an area at least 6 blocks high, 6 blocks wide, and
 6 blocks deep (6x6x6). If you are using wireless modems then you may want to build your constellation as high as you can
@@ -79,18 +78,16 @@ To hide Minecraft's debug screen, press <kbd>F3</kbd> again.
 Create similar startup files for the other computers in your constellation, making sure to input the each computer's own
 coordinates.
 
-:::caution Modem messages come from the computer's position, not the modem's
-Wireless modems transmit from the block that they are attached to *not* the block space that they occupy, the
-coordinates that you input into your GPS host should be the position of the computer and not the position of the modem.
-:::
+> [Modem messages come from the computer's position, not the modem's][!WARNING]
+> Wireless modems transmit from the block that they are attached to *not* the block space that they occupy, the
+> coordinates that you input into your GPS host should be the position of the computer and not the position of the modem.
 
 Congratulations, your constellation is now fully set up! You can test it by placing another computer close by, placing a
-wireless modem on it, and running the `gps locate` program (or calling the @{gps.locate} function).
+wireless modem on it, and running the `gps locate` program (or calling the [`gps.locate`] function).
 
-:::info Why use Minecraft's coordinates?
-CC doesn't care if you use Minecraft's coordinate system, so long as all of the GPS hosts with overlapping ranges use
-the same reference point (requesting computers will get confused if hosts have different reference points). However,
-using MC's coordinate system does provide a nice standard to adopt server-wide. It also is consistent with how command
-computers get their location, they use MC's command system to get their block which returns that in MC's coordinate
-system.
-:::
+> [Why use Minecraft's coordinates?][!INFO]
+> CC doesn't care if you use Minecraft's coordinate system, so long as all of the GPS hosts with overlapping ranges use
+> the same reference point (requesting computers will get confused if hosts have different reference points). However,
+> using MC's coordinate system does provide a nice standard to adopt server-wide. It also is consistent with how command
+> computers get their location, they use MC's command system to get their block which returns that in MC's coordinate
+> system.

doc/guides/speaker_audio.md

@@ -11,7 +11,7 @@ SPDX-License-Identifier: MPL-2.0
 -->
 
 # Playing audio with speakers
-CC: Tweaked's speaker peripheral provides a powerful way to play any audio you like with the @{speaker.playAudio}
+CC: Tweaked's speaker peripheral provides a powerful way to play any audio you like with the [`speaker.playAudio`]
 method. However, for people unfamiliar with digital audio, it's not the most intuitive thing to use. This guide provides
 an introduction to digital audio, demonstrates how to play music with CC: Tweaked's speakers, and then briefly discusses
 the more complex topic of audio processing.
@@ -60,7 +60,7 @@ sine waves (and why wouldn't you?), you'd need a table with almost 3 _million_.
 up very quickly, and these tables take up more and more memory.
 
 Instead of building our entire song (well, sine wave) in one go, we can produce it in small batches, each of which get
-passed off to @{speaker.playAudio} when the time is right. This allows us to build a _stream_ of audio, where we read
+passed off to [`speaker.playAudio`] when the time is right. This allows us to build a _stream_ of audio, where we read
 chunks of audio one at a time (either from a file or a tone generator like above), do some optional processing to each
 one, and then play them.
 
@@ -84,15 +84,15 @@ end
 ```
 
 It looks pretty similar to before, aside from we've wrapped the generation and playing code in a while loop, and added a
-rather odd loop with @{speaker.playAudio} and @{os.pullEvent}.
+rather odd loop with [`speaker.playAudio`] and [`os.pullEvent`].
 
-Let's talk about this loop, why do we need to keep calling @{speaker.playAudio}? Remember that what we're trying to do
+Let's talk about this loop, why do we need to keep calling [`speaker.playAudio`]? Remember that what we're trying to do
 here is avoid keeping too much audio in memory at once. However, if we're generating audio quicker than the speakers can
 play it, we're not helping at all - all this audio is still hanging around waiting to be played!
 
 In order to avoid this, the speaker rejects any new chunks of audio if its backlog is too large. When this happens,
-@{speaker.playAudio} returns false. Once enough audio has played, and the backlog has been reduced, a
-@{speaker_audio_empty} event is queued, and we can try to play our chunk once more.
+[`speaker.playAudio`] returns false. Once enough audio has played, and the backlog has been reduced, a
+[`speaker_audio_empty`] event is queued, and we can try to play our chunk once more.
 
 ## Storing audio
 PCM is a fantastic way of representing audio when we want to manipulate it, but it's not very efficient when we want to
@@ -106,7 +106,7 @@ computer. Instead, we need something much simpler.
 
 DFPWM (Dynamic Filter Pulse Width Modulation) is the de facto standard audio format of the ComputerCraft (and
 OpenComputers) world. Originally popularised by the addon mod [Computronics], CC:T now has built-in support for it with
-the @{cc.audio.dfpwm} module. This allows you to read DFPWM files from disk, decode them to PCM, and then play them
+the [`cc.audio.dfpwm`] module. This allows you to read DFPWM files from disk, decode them to PCM, and then play them
 using the speaker.
 
 Let's dive in with an example, and we'll explain things afterwards:
@@ -125,16 +125,16 @@ for chunk in io.lines("data/example.dfpwm", 16 * 1024) do
 end
 ```
 
-Once again, we see the @{speaker.playAudio}/@{speaker_audio_empty} loop. However, the rest of the program is a little
+Once again, we see the [`speaker.playAudio`]/[`speaker_audio_empty`] loop. However, the rest of the program is a little
 different.
 
-First, we require the dfpwm module and call @{cc.audio.dfpwm.make_decoder} to construct a new decoder. This decoder
+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. DFPMW 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.BinaryReadHandle.read} if you prefer.
+[`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.
 
 ## Processing audio
 As mentioned near the beginning of this guide, PCM audio is pretty easy to work with as it's just a list of amplitudes.
@@ -189,10 +189,9 @@ for chunk in io.lines("data/example.dfpwm", 16 * 1024) do
 end
 ```
 
-:::note Confused?
-Don't worry if you don't understand this example. It's quite advanced, and does use some ideas that this guide doesn't
-cover. That said, don't be afraid to ask on [GitHub Discussions] or [IRC] either!
-:::
+> [Confused?][!NOTE]
+> Don't worry if you don't understand this example. It's quite advanced, and does use some ideas that this guide doesn't
+> cover. That said, don't be afraid to ask on [GitHub Discussions] or [IRC] either!
 
 It's worth noting that the examples of audio processing we've mentioned here are about manipulating the _amplitude_ of
 the wave. If you wanted to modify the _frequency_ (for instance, shifting the pitch), things get rather more complex.

doc/guides/using_require.md

@@ -13,7 +13,7 @@ A library is a collection of useful functions and other definitions which is sto
 might want to create a library because you have some functions which are used in multiple programs, or just to split
 your program into multiple more modular files.
 
-Let's say we want to create a small library to make working with the @{term|terminal} a little easier. We'll provide two
+Let's say we want to create a small library to make working with the [terminal][`term`] a little easier. We'll provide two
 functions: `reset`, which clears the terminal and sets the cursor to (1, 1), and `write_center`, which prints some text
 in the middle of the screen.
 
@@ -48,32 +48,32 @@ more_term.write_center("Hello, world!")
 When run, this'll clear the screen and print some text in the middle of the first line.
 
 ## require in depth
-While the previous section is a good introduction to how @{require} operates, there are a couple of remaining points
+While the previous section is a good introduction to how [`require`] operates, there are a couple of remaining points
 which are worth mentioning for more advanced usage.
 
 ### Libraries can return anything
 In our above example, we return a table containing the functions we want to expose. However, it's worth pointing out
-that you can return ''anything'' from your library - a table, a function or even just a string! @{require} treats them
+that you can return ''anything'' from your library - a table, a function or even just a string! [`require`] treats them
 all the same, and just returns whatever your library provides.
 
 ### Module resolution and the package path
-In the above examples, we defined our library in a file, and @{require} read from it. While this is what you'll do most
-of the time, it is possible to make @{require} look elsewhere for your library, such as downloading from a website or
+In the above examples, we defined our library in a file, and [`require`] read from it. While this is what you'll do most
+of the time, it is possible to make [`require`] look elsewhere for your library, such as downloading from a website or
 loading from an in-memory library store.
 
-As a result, the *module name* you pass to @{require} doesn't correspond to a file path. One common mistake is to load
+As a result, the *module name* you pass to [`require`] doesn't correspond to a file path. One common mistake is to load
 code from a sub-directory using `require("folder/library")` or even `require("folder/library.lua")`, neither of which
 will do quite what you expect.
 
-When loading libraries (also referred to as *modules*) from files, @{require} searches along the *@{package.path|module
-path}*. By default, this looks something like:
+When loading libraries (also referred to as *modules*) from files, [`require`] searches along the [*module
+path*][`package.path`]. By default, this looks something like:
 
 * `?.lua`
 * `?/init.lua`
 * `/rom/modules/main/?.lua`
 * etc...
 
-When you call `require("my_library")`, @{require} replaces the `?` in each element of the path with your module name, and
+When you call `require("my_library")`, [`require`] replaces the `?` in each element of the path with your module name, and
 checks if the file exists. In this case, we'd look for `my_library.lua`, `my_library/init.lua`,
 `/rom/modules/main/my_library.lua` and so on. Note that this works *relative to the current program*, so if your
 program is actually called `folder/program`, then we'll look for `folder/my_library.lua`, etc...
@@ -86,4 +86,4 @@ before we start looking for the library.
 There are several external resources which go into require in a little more detail:
 
  - The [Lua Module tutorial](http://lua-users.org/wiki/ModulesTutorial) on the Lua wiki.
- - [Lua's manual section on @{require}](https://www.lua.org/manual/5.1/manual.html#pdf-require).
+ - [Lua's manual section on `require`](https://www.lua.org/manual/5.1/manual.html#pdf-require).

doc/index.md

@@ -15,13 +15,13 @@ CC: Tweaked can be installed from [CurseForge] or [Modrinth]. It runs on both [M
 Controlled using the [Lua programming language][lua], CC: Tweaked's computers provides all the tools you need to start
 writing code and automating your Minecraft world.
 
-![A ComputerCraft terminal open and ready to be programmed.](images/basic-terminal.png){.big-image}
+<img alt="A ComputerCraft terminal open and ready to be programmed." src="images/basic-terminal.png" class="big-image" />
 
 While computers are incredibly powerful, they're rather limited by their inability to move about. *Turtles* are the
 solution here. They can move about the world, placing and breaking blocks, swinging a sword to protect you from zombies,
 or whatever else you program them to!
 
-![A turtle tunneling in Minecraft.](images/turtle.png){.big-image}
+<img alt="A turtle tunneling in Minecraft." src="images/turtle.png" class="big-image" />
 
 Not all problems can be solved with a pickaxe though, and so CC: Tweaked also provides a bunch of additional peripherals
 for your computers. You can play a tune with speakers, display text or images on a monitor, connect all your
@@ -30,7 +30,7 @@ computers together with modems, and much more.
 Computers can now also interact with inventories such as chests, allowing you to build complex inventory and item
 management systems.
 
-![A chest's contents being read by a computer and displayed on a monitor.](images/peripherals.png){.big-image}
+<img alt="A chest's contents being read by a computer and displayed on a monitor." src="images/peripherals.png" class="big-image" />
 
 ## Getting Started
 While ComputerCraft is lovely for both experienced programmers and for people who have never coded before, it can be a

doc/reference/breaking_changes.md

@@ -0,0 +1,80 @@
+---
+module: [kind=reference] breaking_changes
+---
+
+<!--
+SPDX-FileCopyrightText: 2019 The CC: Tweaked Developers
+
+SPDX-License-Identifier: MPL-2.0
+-->
+
+# Incompatibilities between versions
+
+CC: Tweaked tries to remain as compatible between versions as possible, meaning most programs written for older version
+of the mod should run fine on later versions.
+
+> [External peripherals][!WARNING]
+>
+> While CC: Tweaked is relatively stable across versions, this may not be true for other mods which add their own
+> peripherals. Older programs which interact with external blocks may not work on newer versions of the game.
+
+However, some changes to the underlying game, or CC: Tweaked's own internals may break some programs. This page serves
+as documentation for breaking changes and "gotchas" one should look out for between versions.
+
+## CC: Tweaked 1.109.0 {#cct-1.109}
+
+ - Update to Lua 5.2:
+   - Support for Lua 5.0's pseudo-argument `arg` has been removed. You should always use `...` for varargs.
+   - Environments are no longer baked into the runtime, and instead use the `_ENV` local or upvalue. `getfenv`/`setfenv`
+     now only work on Lua functions with an `_ENV` upvalue. `getfenv` will return the global environment when called
+     with other functions, and `setfenv` will have no effect.
+   - `load`/`loadstring` defaults to using the global environment (`_G`) rather than the current coroutine's
+     environment.
+   - Support for dumping functions (`string.dump`) and loading binary chunks has been removed.
+
+ - File handles, HTTP requests and websockets now always use the original bytes rather than encoding/decoding to UTF-8.
+
+## Minecraft 1.13 {#mc-1.13}
+ - The "key code" for [`key`] and [`key_up`] events has changed, due to Minecraft updating to LWJGL 3. Make sure you're
+   using the constants provided by the [`keys`] API, rather than hard-coding numerical values.
+
+   Related to this change, the numpad enter key now has a different key code to the enter key. You may need to adjust
+   your programs to handle both. (Note, the `keys.numpadEnter` constant was defined in pre-1.13 versions of CC, but the
+   `keys.enter` constant was queued when the key was pressed)
+
+ - Minecraft 1.13 removed the concept of item damage and block metadata (see ["The Flattening"][flattening]). As a
+   result `turtle.inspect` no longer provides block metadata, and `turtle.getItemDetail` no longer provides damage.
+
+   - Block states (`turtle.inspect().state`) should provide all the same information as block metadata, but in a much
+     more understandable format.
+
+   - Item and block names now represent a unique item type. For instance, wool is split into 16 separate items
+     (`minecraft:white_wool`, etc...) rather than a single `minecraft:wool` with each meta/damage value specifying the
+     colour.
+
+ - Custom ROMs are now provided using data packs rather than resource packs. This should mostly be a matter of renaming
+   the "assets" folder to "data", and placing it in "datapacks", but there are a couple of other gotchas to look out
+   for:
+
+   - Data packs [impose some restrictions on file names][legal_data_pack]. As a result, your programs and directories
+     must all be lower case.
+   - Due to how data packs are read by CC: Tweaked, you may need to use the `/reload` command to see changes to your
+     pack show up on the computer.
+
+   See [the example datapack][datapack-example] for how to get started.
+
+ - Turtles can now be waterlogged and move "through" water sources rather than breaking them.
+
+## CC: Tweaked 1.88.0 {#cc-1.88}
+ - Unlabelled computers and turtles now keep their ID when broken, meaning that unlabelled computers/items do not stack.
+
+## ComputerCraft 1.80pr1 {#cc-1.80}
+ - Programs run via `shell.run` are now started in their own isolated environment. This means globals set by programs
+   will not be accessible outside of this program.
+
+ - Programs containing `/` are looked up in the current directory and are no longer looked up on the path. For instance,
+   you can no longer type `turtle/excavate` to run `/rom/programs/turtle/excavate.lua`.
+
+[flattening]: https://minecraft.wiki.com/w/Java_Edition_1.13/Flattening
+[legal_data_pack]: https://minecraft.gamepedia.com/Tutorials/Creating_a_data_pack#Legal_characters
+[datapack-example]: https://github.com/cc-tweaked/datapack-example "An example datapack for CC: Tweaked"

doc/reference/feature_compat.md

@@ -9,17 +9,19 @@ SPDX-License-Identifier: MPL-2.0
 -->
 
 # Lua 5.2/5.3 features in CC: Tweaked
-CC: Tweaked is based off of the Cobalt Lua runtime, which uses Lua 5.1. However, Cobalt and CC:T implement additional features from Lua 5.2 and 5.3 (as well as some deprecated 5.0 features) that are not available in base 5.1. This page lists all of the compatibility for these newer versions.
+CC: Tweaked is based off of the Cobalt Lua runtime, which uses Lua 5.2. However, Cobalt and CC:T implement additional
+features from Lua 5.2 and 5.3 (as well as some deprecated 5.0 and 5.1 features). This page lists all of the
+compatibility for these newer versions.
 
 ## Lua 5.2
 | Feature                                                       | Supported? | Notes                                                             |
 |---------------------------------------------------------------|------------|-------------------------------------------------------------------|
-| `goto`/labels                                                 | ❌         |                                                                   |
-| `_ENV`                                                        | 🔶         | The `_ENV` global points to `getfenv()`, but it cannot be set.    |
+| `goto`/labels                                                 | ✔          |                                                                   |
+| `_ENV`                                                        | ✔          |                                                                   |
 | `\z` escape                                                   | ✔          |                                                                   |
 | `\xNN` escape                                                 | ✔          |                                                                   |
 | Hex literal fractional/exponent parts                         | ✔          |                                                                   |
-| Empty statements                                              | ❌         |                                                                   |
+| Empty statements                                              | ✔          |                                                                   |
 | `__len` metamethod                                            | ✔          |                                                                   |
 | `__ipairs` metamethod                                         | ❌         | Deprecated in Lua 5.3. `ipairs` uses `__len`/`__index` instead.   |
 | `__pairs` metamethod                                          | ✔          |                                                                   |
@@ -27,12 +29,12 @@ CC: Tweaked is based off of the Cobalt Lua runtime, which uses Lua 5.1. However,
 | `collectgarbage` isrunning, generational, incremental options | ❌         | `collectgarbage` does not exist in CC:T.                          |
 | New `load` syntax                                             | ✔          |                                                                   |
 | `loadfile` mode parameter                                     | ✔          | Supports both 5.1 and 5.2+ syntax.                                |
-| Removed `loadstring`                                          | 🔶         | Only if `disable_lua51_features` is enabled in the configuration. |
-| Removed `getfenv`, `setfenv`                                  | 🔶         | Only if `disable_lua51_features` is enabled in the configuration. |
+| Removed `loadstring`                                          | ❌         |                                                                   |
+| Removed `getfenv`, `setfenv`                                  | 🔶         | Only supports closures with an `_ENV` upvalue.                    |
 | `rawlen` function                                             | ✔          |                                                                   |
 | Negative index to `select`                                    | ✔          |                                                                   |
-| Removed `unpack`                                              | 🔶         | Only if `disable_lua51_features` is enabled in the configuration. |
-| Arguments to `xpcall`                                         | ✔         |                                                                   |
+| Removed `unpack`                                              | ❌         |                                                                   |
+| Arguments to `xpcall`                                         | ✔          |                                                                   |
 | Second return value from `coroutine.running`                  | ✔          |                                                                   |
 | Removed `module`                                              | ✔          |                                                                   |
 | `package.loaders` -> `package.searchers`                      | ❌         |                                                                   |
@@ -40,14 +42,14 @@ CC: Tweaked is based off of the Cobalt Lua runtime, which uses Lua 5.1. However,
 | `package.config`                                              | ✔          |                                                                   |
 | `package.searchpath`                                          | ✔          |                                                                   |
 | Removed `package.seeall`                                      | ✔          |                                                                   |
-| `string.dump` on functions with upvalues (blanks them out)    | ✔          |                                                                   |
-| `string.rep` separator                                        | ✔         |                                                                   |
+| `string.dump` on functions with upvalues (blanks them out)    | ❌         | `string.dump` is not supported                                    |
+| `string.rep` separator                                        | ✔          |                                                                   |
 | `%g` match group                                              | ❌         |                                                                   |
 | Removal of `%z` match group                                   | ❌         |                                                                   |
-| Removed `table.maxn`                                          | 🔶         | Only if `disable_lua51_features` is enabled in the configuration. |
+| Removed `table.maxn`                                          | ❌         |                                                                   |
 | `table.pack`/`table.unpack`                                   | ✔          |                                                                   |
 | `math.log` base argument                                      | ✔          |                                                                   |
-| Removed `math.log10`                                          | 🔶         | Only if `disable_lua51_features` is enabled in the configuration. |
+| Removed `math.log10`                                          | ❌         |                                                                   |
 | `*L` mode to `file:read`                                      | ✔          |                                                                   |
 | `os.execute` exit type + return value                         | ❌         | `os.execute` does not exist in CC:T.                              |
 | `os.exit` close argument                                      | ❌         | `os.exit` does not exist in CC:T.                                 |
@@ -61,7 +63,7 @@ CC: Tweaked is based off of the Cobalt Lua runtime, which uses Lua 5.1. However,
 | Tail call hooks                                               | ❌         |                                                                   |
 | `=` prefix for chunks                                         | ✔          |                                                                   |
 | Yield across C boundary                                       | ✔          |                                                                   |
-| Removal of ambiguity error                                    | ❌         |                                                                   |
+| Removal of ambiguity error                                    | ✔          |                                                                   |
 | Identifiers may no longer use locale-dependent letters        | ✔          |                                                                   |
 | Ephemeron tables                                              | ❌         |                                                                   |
 | Identical functions may be reused                             | ❌         | Removed in Lua 5.4                                                |

doc/stub/global.lua

@@ -13,22 +13,20 @@ include standard Lua functions.
 
 As it waits for a fixed amount of world ticks, `time` will automatically be
 rounded up to the nearest multiple of 0.05 seconds. If you are using coroutines
-or the @{parallel|parallel API}, it will only pause execution of the current
+or the [parallel API][`parallel`], it will only pause execution of the current
 thread, not the whole program.
 
-:::tip
-Because sleep internally uses timers, it is a function that yields. This means
-that you can use it to prevent "Too long without yielding" errors. However, as
-the minimum sleep time is 0.05 seconds, it will slow your program down.
-:::
+> [!TIP]
+> Because sleep internally uses timers, it is a function that yields. This means
+> that you can use it to prevent "Too long without yielding" errors. However, as
+> the minimum sleep time is 0.05 seconds, it will slow your program down.
 
-:::caution
-Internally, this function queues and waits for a timer event (using
-@{os.startTimer}), however it does not listen for any other events. This means
-that any event that occurs while sleeping will be entirely discarded. If you
-need to receive events while sleeping, consider using @{os.startTimer|timers},
-or the @{parallel|parallel API}.
-:::
+> [!WARNING]
+> Internally, this function queues and waits for a timer event (using
+> [`os.startTimer`]), however it does not listen for any other events. This means
+> that any event that occurs while sleeping will be entirely discarded. If you
+> need to receive events while sleeping, consider using [timers][`os.startTimer`],
+> or the [parallel API][`parallel`].
 
 @tparam number time The number of seconds to sleep for, rounded up to the
 nearest multiple of 0.05.
@@ -116,7 +114,7 @@ function read(replaceChar, history, completeFn, default) end
 
 --- Stores the current ComputerCraft and Minecraft versions.
 --
--- Outside of Minecraft (for instance, in an emulator) @{_HOST} will contain the
+-- Outside of Minecraft (for instance, in an emulator) [`_HOST`] will contain the
 -- emulator's version instead.
 --
 -- For example, `ComputerCraft 1.93.0 (Minecraft 1.15.2)`.

doc/stub/os.lua

@@ -15,27 +15,27 @@ variables and functions exported by it will by available through the use of
 @deprecated When possible it's best to avoid using this function. It pollutes
 the global table and can mask errors.
 
-@{require} should be used to load libraries instead.
+[`require`] should be used to load libraries instead.
 ]]
 function loadAPI(path) end
 
---- Unloads an API which was loaded by @{os.loadAPI}.
+--- Unloads an API which was loaded by [`os.loadAPI`].
 --
 -- This effectively removes the specified table from `_G`.
 --
 -- @tparam string name The name of the API to unload.
 -- @since 1.2
--- @deprecated See @{os.loadAPI} for why.
+-- @deprecated See [`os.loadAPI`] for why.
 function unloadAPI(name) end
 
 --[[- Pause execution of the current thread and waits for any events matching
 `filter`.
 
-This function @{coroutine.yield|yields} the current process and waits for it
+This function [yields][`coroutine.yield`] the current process and waits for it
 to be resumed with a vararg list where the first element matches `filter`.
 If no `filter` is supplied, this will match all events.
 
-Unlike @{os.pullEventRaw}, it will stop the application upon a "terminate"
+Unlike [`os.pullEventRaw`], it will stop the application upon a "terminate"
 event, printing the error "Terminated".
 
 @tparam[opt] string filter Event to filter for.
@@ -69,7 +69,7 @@ function pullEvent(filter) end
 --[[- Pause execution of the current thread and waits for events, including the
 `terminate` event.
 
-This behaves almost the same as @{os.pullEvent}, except it allows you to handle
+This behaves almost the same as [`os.pullEvent`], except it allows you to handle
 the `terminate` event yourself - the program will not stop execution when
 <kbd>Ctrl+T</kbd> is pressed.
 
@@ -89,16 +89,16 @@ the `terminate` event yourself - the program will not stop execution when
 ]]
 function pullEventRaw(filter) end
 
---- Pauses execution for the specified number of seconds, alias of @{_G.sleep}.
+--- Pauses execution for the specified number of seconds, alias of [`_G.sleep`].
 --
 -- @tparam number time The number of seconds to sleep for, rounded up to the
 -- nearest multiple of 0.05.
 function sleep(time) end
 
---- Get the current CraftOS version (for example, `CraftOS 1.8`).
+--- Get the current CraftOS version (for example, `CraftOS 1.9`).
 --
 -- This is defined by `bios.lua`. For the current version of CC:Tweaked, this
--- should return `CraftOS 1.8`.
+-- should return `CraftOS 1.9`.
 --
 -- @treturn string The current CraftOS version.
 -- @usage os.version()
@@ -109,12 +109,12 @@ arguments.
 
 This function does not resolve program names like the shell does. This means
 that, for example, `os.run("edit")` will not work. As well as this, it does not
-provide access to the @{shell} API in the environment. For this behaviour, use
-@{shell.run} instead.
+provide access to the [`shell`] API in the environment. For this behaviour, use
+[`shell.run`] instead.
 
 If the program cannot be found, or failed to run, it will print the error and
 return `false`. If you want to handle this more gracefully, use an alternative
-such as @{loadfile}.
+such as [`loadfile`].
 
 @tparam table env The environment to run the program with.
 @tparam string path The exact path of the program to run.

gradle.properties

@@ -9,8 +9,8 @@ kotlin.stdlib.default.dependency=false
 kotlin.jvm.target.validation.mode=error
 
 # Mod properties
-isUnstable=false
-modVersion=1.105.0
+isUnstable=true
+modVersion=1.109.1
 
 # Minecraft properties: We want to configure this here so we can read it in settings.gradle
-mcVersion=1.19.4
+mcVersion=1.20.1

gradle/libs.versions.toml

@@ -7,20 +7,21 @@
 # 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 = "0.80.0+1.19.4"
-fabric-loader = "0.14.19"
-forge = "45.0.42"
+fabric-api = "0.86.1+1.20.1"
+fabric-loader = "0.14.21"
+forge = "47.1.0"
 forgeSpi = "6.0.0"
 mixin = "0.8.5"
-parchment = "2023.03.12"
-parchmentMc = "1.19.3"
+parchment = "2023.08.20"
+parchmentMc = "1.20.1"
 
 # Normal dependencies
-asm = "9.3"
-autoService = "1.0.1"
+asm = "9.5"
+autoService = "1.1.1"
 checkerFramework = "3.32.0"
-cobalt = "0.7.0"
-cobalt-next = "0.7.1" # Not a real version, used to constrain the version we accept.
+cobalt = "0.8.0"
+cobalt-next = "0.8.1" # Not a real version, used to constrain the version we accept.
+commonsCli = "1.3.1"
 fastutil = "8.5.9"
 guava = "31.1-jre"
 jetbrainsAnnotations = "24.0.1"
@@ -29,50 +30,56 @@ jzlib = "1.1.3"
 kotlin = "1.8.10"
 kotlin-coroutines = "1.6.4"
 netty = "4.1.82.Final"
-nightConfig = "3.6.5"
-slf4j = "1.7.36"
+nightConfig = "3.6.7"
+slf4j = "2.0.1"
 
 # Minecraft mods
-iris = "1.5.2+1.19.4"
-jei = "13.1.0.11"
-modmenu = "6.1.0-rc.1"
+emi = "1.0.8+1.20.1"
+fabricPermissions = "0.3.20230723"
+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 = "10.0.578"
+rei = "12.0.626"
 rubidium = "0.6.1"
-sodium = "mc1.19.4-0.4.10"
+sodium = "mc1.20-0.4.10"
 
 # Testing
-byteBuddy = "1.14.2"
 hamcrest = "2.2"
-jqwik = "1.7.2"
-junit = "5.9.2"
+jqwik = "1.7.4"
+junit = "5.10.0"
 
 # Build tools
-cctJavadoc = "1.7.0"
-checkstyle = "10.3.4"
+cctJavadoc = "1.8.2"
+checkstyle = "10.12.3"
 curseForgeGradle = "1.0.14"
-errorProne-core = "2.18.0"
-errorProne-plugin = "3.0.1"
-fabric-loom = "1.2.7"
-forgeGradle = "6.0.6"
-githubRelease = "2.2.12"
-ideaExt = "1.1.6"
-illuaminate = "0.1.0-28-ga7efd71"
+errorProne-core = "2.21.1"
+errorProne-plugin = "3.1.0"
+fabric-loom = "1.3.7"
+forgeGradle = "6.0.8"
+githubRelease = "2.4.1"
+ideaExt = "1.1.7"
+illuaminate = "0.1.0-44-g9ee0055"
 librarian = "1.+"
+lwjgl = "3.3.1"
 minotaur = "2.+"
 mixinGradle = "0.7.+"
 nullAway = "0.9.9"
-quiltflower = "1.8.0"
-spotless = "6.17.0"
+spotless = "6.21.0"
 taskTree = "2.1.1"
+teavm = "0.10.0-SQUID.2"
 vanillaGradle = "0.2.1-SNAPSHOT"
+vineflower = "1.11.0"
 
 [libraries]
 # Normal dependencies
 asm = { module = "org.ow2.asm:asm", version.ref = "asm" }
+asm-commons = { module = "org.ow2.asm:asm-commons", version.ref = "asm" }
 autoService = { module = "com.google.auto.service:auto-service", version.ref = "autoService" }
 checkerFramework = { module = "org.checkerframework:checker-qual", version.ref = "checkerFramework" }
-cobalt = { module = "org.squiddev:Cobalt", version.ref = "cobalt" }
+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" }
 forgeSpi = { module = "net.minecraftforge:forgespi", version.ref = "forgeSpi" }
 guava = { module = "com.google.guava:guava", version.ref = "guava" }
@@ -92,12 +99,16 @@ slf4j = { module = "org.slf4j:slf4j-api", version.ref = "slf4j" }
 # Minecraft mods
 fabric-api = { module = "net.fabricmc.fabric-api:fabric-api", version.ref = "fabric-api" }
 fabric-loader = { module = "net.fabricmc:fabric-loader", version.ref = "fabric-loader" }
+fabric-junit = { module = "net.fabricmc:fabric-loader-junit", version.ref = "fabric-loader" }
+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-1.19.4-common-api", version.ref = "jei" }
-jei-fabric = { module = "mezz.jei:jei-1.19.4-fabric", version.ref = "jei" }
-jei-forge = { module = "mezz.jei:jei-1.19.4-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" }
 oculus = { module = "maven.modrinth:oculus", version.ref = "oculus" }
 rei-api = { module = "me.shedaniel:RoughlyEnoughItems-api", version.ref = "rei" }
 rei-builtin = { module = "me.shedaniel:RoughlyEnoughItems-default-plugin", version.ref = "rei" }
@@ -106,8 +117,6 @@ rubidium = { module = "maven.modrinth:rubidium", version.ref = "rubidium" }
 sodium = { module = "maven.modrinth:sodium", version.ref = "sodium" }
 
 # Testing
-byteBuddyAgent = { module = "net.bytebuddy:byte-buddy-agent", version.ref = "byteBuddy" }
-byteBuddy = { module = "net.bytebuddy:byte-buddy", version.ref = "byteBuddy" }
 hamcrest = { module = "org.hamcrest:hamcrest", version.ref = "hamcrest" }
 jqwik-api = { module = "net.jqwik:jqwik-api", version.ref = "jqwik" }
 jqwik-engine = { module = "net.jqwik:jqwik-engine", version.ref = "jqwik" }
@@ -116,6 +125,12 @@ junit-jupiter-engine = { module = "org.junit.jupiter:junit-jupiter-engine", vers
 junit-jupiter-params = { module = "org.junit.jupiter:junit-jupiter-params", version.ref = "junit" }
 slf4j-simple = { module = "org.slf4j:slf4j-simple", version.ref = "slf4j" }
 
+# LWJGL
+lwjgl-bom = { module = "org.lwjgl:lwjgl-bom", version.ref = "lwjgl" }
+lwjgl-core = { module = "org.lwjgl:lwjgl" }
+lwjgl-opengl = { module = "org.lwjgl:lwjgl-opengl" }
+lwjgl-glfw = { module = "org.lwjgl:lwjgl-glfw" }
+
 # Build tools
 cctJavadoc = { module = "cc.tweaked:cct-javadoc", version.ref = "cctJavadoc" }
 checkstyle = { module = "com.puppycrawl.tools:checkstyle", version.ref = "checkstyle" }
@@ -127,34 +142,47 @@ errorProne-plugin = { module = "net.ltgt.gradle:gradle-errorprone-plugin", versi
 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" }
 nullAway = { module = "com.uber.nullaway:nullaway", version.ref = "nullAway" }
-quiltflower = { module = "io.github.juuxel:loom-quiltflower", version.ref = "quiltflower" }
 spotless = { module = "com.diffplug.spotless:spotless-plugin-gradle", version.ref = "spotless" }
+teavm-classlib = { module = "org.teavm:teavm-classlib", 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" }
+teavm-metaprogramming-api = { module = "org.teavm:teavm-metaprogramming-api", version.ref = "teavm" }
+teavm-metaprogramming-impl = { module = "org.teavm:teavm-metaprogramming-impl", version.ref = "teavm" }
+teavm-platform = { module = "org.teavm:teavm-platform", version.ref = "teavm" }
+teavm-tooling = { module = "org.teavm:teavm-tooling", version.ref = "teavm" }
 vanillaGradle = { module = "org.spongepowered:vanillagradle", version.ref = "vanillaGradle" }
+vineflower = { module = "io.github.juuxel:loom-vineflower", version.ref = "vineflower" }
 
 [plugins]
 forgeGradle = { id = "net.minecraftforge.gradle", version.ref = "forgeGradle" }
 githubRelease = { id = "com.github.breadmoirai.github-release", version.ref = "githubRelease" }
-ideaExt = { id = "org.jetbrains.gradle.plugin.idea-ext", version.ref = "ideaExt" }
 kotlin = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
 librarian = { id = "org.parchmentmc.librarian.forgegradle", version.ref = "librarian" }
 mixinGradle = { id = "org.spongepowered.mixin", version.ref = "mixinGradle" }
 taskTree = { id = "com.dorongold.task-tree", version.ref = "taskTree" }
 
 [bundles]
+annotations = ["jsr305", "checkerFramework", "jetbrainsAnnotations"]
 kotlin = ["kotlin-stdlib", "kotlin-coroutines"]
 
 # Minecraft
 externalMods-common = ["jei-api", "nightConfig-core", "nightConfig-toml"]
-externalMods-forge-compile = ["oculus", "jei-api"]
+externalMods-forge-compile = ["moreRed", "oculus", "jei-api"]
 externalMods-forge-runtime = ["jei-forge"]
 externalMods-fabric = ["nightConfig-core", "nightConfig-toml"]
-externalMods-fabric-compile = ["iris", "jei-api", "rei-api", "rei-builtin"]
+externalMods-fabric-compile = ["fabricPermissions", "iris", "jei-api", "rei-api", "rei-builtin"]
 externalMods-fabric-runtime = ["jei-fabric", "modmenu"]
 
 # Testing
 test = ["junit-jupiter-api", "junit-jupiter-params", "hamcrest", "jqwik-api"]
 testRuntime = ["junit-jupiter-engine", "jqwik-engine"]
+
+# Build tools
+teavm-api = [ "teavm-jso", "teavm-jso-apis", "teavm-platform", "teavm-classlib", "teavm-metaprogramming-api" ]
+teavm-tooling = [ "teavm-tooling", "teavm-metaprogramming-impl", "teavm-jso-impl" ]

illuaminate.sexp

@@ -2,16 +2,15 @@
 
 ; SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 ;
-; SPDX-License-Identifier: LicenseRef-CCPL
+; SPDX-License-Identifier: MPL-2.0
 
 (sources
   /doc/
-  /projects/forge/build/docs/luaJavadoc/
+  /projects/common/build/docs/luaJavadoc/
   /projects/core/src/main/resources/data/computercraft/lua/bios.lua
   /projects/core/src/main/resources/data/computercraft/lua/rom/
   /projects/core/src/test/resources/test-rom
-  /projects/web/src/mount)
-
+  /projects/web/src/frontend/mount)
 
 (doc
   ; Also defined in projects/web/build.gradle.kts
@@ -24,7 +23,7 @@
     (url https://tweaked.cc/)
     (source-link https://github.com/cc-tweaked/CC-Tweaked/blob/${commit}/${path}#L${line})
 
-    (styles /projects/web/src/styles.css)
+    (styles  /projects/web/build/rollup/index.css)
     (scripts /projects/web/build/rollup/index.js)
     (head doc/head.html))
 
@@ -37,7 +36,7 @@
 
   (library-path
     /doc/stub/
-    /projects/forge/build/docs/luaJavadoc/
+    /projects/common/build/docs/luaJavadoc/
 
     /projects/core/src/main/resources/data/computercraft/lua/rom/apis/
     /projects/core/src/main/resources/data/computercraft/lua/rom/apis/command/
@@ -50,6 +49,8 @@
 (at /
   (linters
     syntax:string-index
+    doc:docusaurus-admonition
+    doc:ldoc-reference
 
     ;; It'd be nice to avoid this, but right now there's a lot of instances of
     ;; it.
@@ -76,29 +77,24 @@
     (globals
       :max
       _CC_DEFAULT_SETTINGS
-      _CC_DISABLE_LUA51_FEATURES
       _HOST
       ;; Ideally we'd pick these up from bios.lua, but illuaminate currently
       ;; isn't smart enough.
       sleep write printError read rs)))
 
-;; We disable the unused global linter in bios.lua and the APIs. In the future
-;; hopefully we'll get illuaminate to handle this.
+;; We disable the unused global linter in bios.lua, APIs and our documentation
+;; stubs docs. In the future hopefully we'll get illuaminate to handle this.
 (at
-  (/projects/core/src/main/resources/data/computercraft/lua/bios.lua
-   /projects/core/src/main/resources/data/computercraft/lua/rom/apis/)
-  (linters -var:unused-global)
-  (lint (allow-toplevel-global true)))
-
-;; Silence some variable warnings in documentation stubs.
-(at (/doc/stub/ /projects/forge/build/docs/luaJavadoc/)
+  (/doc/stub/
+   /projects/core/src/main/resources/data/computercraft/lua/bios.lua
+   /projects/core/src/main/resources/data/computercraft/lua/rom/apis/
+   /projects/common/build/docs/luaJavadoc/)
   (linters -var:unused-global)
   (lint (allow-toplevel-global true)))
 
 ;; Suppress warnings for currently undocumented modules.
 (at
   (; Lua APIs
-   /projects/core/src/main/resources/data/computercraft/lua/rom/apis/io.lua
    /projects/core/src/main/resources/data/computercraft/lua/rom/apis/window.lua)
 
   (linters -doc:undocumented -doc:undocumented-arg -doc:undocumented-return))
@@ -118,4 +114,4 @@
       :max sleep write
       cct_test describe expect howlci fail it pending stub before_each)))
 
-(at /projects/web/src/mount/expr_template.lua (lint (globals :max __expr__)))
+(at /projects/web/src/frontend/mount/expr_template.lua (lint (globals :max __expr__)))

package.json

@@ -6,24 +6,24 @@
   "license": "BSD-3-Clause",
   "type": "module",
   "dependencies": {
+    "@squid-dev/cc-web-term": "^2.0.0",
     "preact": "^10.5.5",
+    "setimmediate": "^1.0.5",
     "tslib": "^2.0.3"
   },
   "devDependencies": {
-    "@rollup/plugin-terser": "^0.4.0",
+    "@rollup/plugin-node-resolve": "^15.2.1",
     "@rollup/plugin-typescript": "^11.0.0",
     "@rollup/plugin-url": "^8.0.1",
-    "@types/glob": "^8.1.0",
-    "@types/react-dom": "^18.0.5",
-    "glob": "^9.3.0",
-    "react-dom": "^18.1.0",
-    "react": "^18.1.0",
-    "rehype-highlight": "^6.0.0",
-    "rehype-react": "^7.1.1",
-    "rehype": "^12.0.1",
-    "requirejs": "^2.3.6",
-    "rollup": "^3.19.1",
-    "ts-node": "^10.8.0",
-    "typescript": "^4.0.5"
+    "@swc/core": "^1.3.92",
+    "@types/node": "^20.8.3",
+    "lightningcss": "^1.22.0",
+    "preact-render-to-string": "^6.2.1",
+    "rehype": "^13.0.0",
+    "rehype-highlight": "^7.0.0",
+    "rehype-react": "^8.0.0",
+    "rollup": "^4.0.0",
+    "tsx": "^3.12.10",
+    "typescript": "^5.2.2"
   }
 }

projects/ARCHITECTURE.md

@@ -62,6 +62,9 @@ mentioning:
  - `lints`: This defines an [ErrorProne] plugin which adds a couple of compile-time checks to our code. This is what
    enforces that no client-specific code is used inside the `main` source set (and a couple of other things!).
 
+ - `standalone`: This contains a standalone UI for computers, allowing debugging and development of CraftOS without
+   launching Minecraft.
+
  - `web`: This contains the additional tooling for building [the documentation website][tweaked.cc], such as support for
    rendering recipes
 

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

@@ -11,10 +11,13 @@ import dan200.computercraft.api.turtle.ITurtleUpgrade;
 import dan200.computercraft.api.turtle.TurtleSide;
 import dan200.computercraft.api.turtle.TurtleUpgradeSerialiser;
 import net.minecraft.client.resources.model.ModelResourceLocation;
+import net.minecraft.client.resources.model.UnbakedModel;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.resources.ResourceLocation;
 
 import javax.annotation.Nullable;
+import java.util.Collection;
+import java.util.List;
 
 /**
  * Provides models for a {@link ITurtleUpgrade}.
@@ -50,9 +53,24 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
         return getModel(upgrade, (ITurtleAccess) null, side);
     }
 
+
     /**
-     * A basic {@link TurtleUpgradeModeller} which renders using the upgrade's {@linkplain ITurtleUpgrade#getCraftingItem()
-     * crafting item}.
+     * Get a list of models that this turtle modeller depends on.
+     * <p>
+     * Models included in this list will be loaded and baked alongside item and block models, and so may be referenced
+     * by {@link TransformedModel#of(ResourceLocation)}. You do not need to override this method if you will load models
+     * by other means.
+     *
+     * @return A list of models that this modeller depends on.
+     * @see UnbakedModel#getDependencies()
+     */
+    default Collection<ResourceLocation> getDependencies() {
+        return List.of();
+    }
+
+    /**
+     * A basic {@link TurtleUpgradeModeller} which renders using the upgrade's {@linkplain ITurtleUpgrade#getUpgradeItem(CompoundTag)}
+     * upgrade item}.
      * <p>
      * This uses appropriate transformations for "flat" items, namely those extending the {@literal minecraft:item/generated}
      * model type. It will not appear correct for 3D models with additional depth, such as blocks.
@@ -62,7 +80,7 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
      */
     @SuppressWarnings("unchecked")
     static <T extends ITurtleUpgrade> TurtleUpgradeModeller<T> flatItem() {
-        return (TurtleUpgradeModeller<T>) TurtleUpgradeModellers.FLAT_ITEM;
+        return (TurtleUpgradeModeller<T>) TurtleUpgradeModellers.UPGRADE_ITEM;
     }
 
     /**
@@ -74,7 +92,8 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
      * @return The constructed modeller.
      */
     static <T extends ITurtleUpgrade> TurtleUpgradeModeller<T> sided(ModelResourceLocation left, ModelResourceLocation right) {
-        return (upgrade, turtle, side) -> TransformedModel.of(side == TurtleSide.LEFT ? left : right);
+        // TODO(1.21.0): Remove this.
+        return sided((ResourceLocation) left, right);
     }
 
     /**
@@ -86,6 +105,16 @@ public interface TurtleUpgradeModeller<T extends ITurtleUpgrade> {
      * @return The constructed modeller.
      */
     static <T extends ITurtleUpgrade> TurtleUpgradeModeller<T> sided(ResourceLocation left, ResourceLocation right) {
-        return (upgrade, turtle, side) -> TransformedModel.of(side == TurtleSide.LEFT ? left : right);
+        return new TurtleUpgradeModeller<>() {
+            @Override
+            public TransformedModel getModel(T upgrade, @Nullable ITurtleAccess turtle, TurtleSide side) {
+                return TransformedModel.of(side == TurtleSide.LEFT ? left : right);
+            }
+
+            @Override
+            public Collection<ResourceLocation> getDependencies() {
+                return List.of(left, right);
+            }
+        };
     }
 }

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

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

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

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

projects/common-api/src/main/java/dan200/computercraft/api/ComputerCraftTags.java

@@ -46,6 +46,14 @@ public class ComputerCraftTags {
         public static final TagKey<Block> WIRED_MODEM = make("wired_modem");
         public static final TagKey<Block> MONITOR = make("monitor");
 
+        /**
+         * Blocks which should be ignored by a {@code peripheral_hub} peripheral.
+         * <p>
+         * This should include blocks which themselves expose a peripheral hub (such as {@linkplain #WIRED_MODEM wired
+         * modems}).
+         */
+        public static final TagKey<Block> PERIPHERAL_HUB_IGNORE = make("peripheral_hub_ignore");
+
         /**
          * Blocks which can be broken by any turtle tool.
          */

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

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

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

@@ -16,7 +16,6 @@ import net.minecraft.nbt.CompoundTag;
 import net.minecraft.world.Container;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.Level;
-import net.minecraft.world.phys.Vec3;
 import org.jetbrains.annotations.ApiStatus;
 
 import javax.annotation.Nullable;
@@ -71,29 +70,6 @@ public interface ITurtleAccess {
      */
     boolean teleportTo(Level world, BlockPos pos);
 
-    /**
-     * Returns a vector containing the floating point co-ordinates at which the turtle is rendered.
-     * This will shift when the turtle is moving.
-     *
-     * @param f The subframe fraction.
-     * @return A vector containing the floating point co-ordinates at which the turtle resides.
-     * @see #getVisualYaw(float)
-     * @deprecated Will be removed in 1.20.
-     */
-    @Deprecated(forRemoval = true)
-    Vec3 getVisualPosition(float f);
-
-    /**
-     * Returns the yaw the turtle is facing when it is rendered.
-     *
-     * @param f The subframe fraction.
-     * @return The yaw the turtle is facing.
-     * @see #getVisualPosition(float)
-     * @deprecated Will be removed in 1.20.
-     */
-    @Deprecated(forRemoval = true)
-    float getVisualYaw(float f);
-
     /**
      * Returns the world direction the turtle is currently facing.
      *

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

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

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

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

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

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

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

@@ -19,15 +19,9 @@ import net.minecraft.data.PackOutput;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.item.Item;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 
 import javax.annotation.Nullable;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
+import java.util.*;
 import java.util.concurrent.CompletableFuture;
 import java.util.function.Consumer;
 import java.util.function.Function;
@@ -40,8 +34,6 @@ import java.util.function.Function;
  * @param <R> The upgrade serialiser to register for.
  */
 public abstract class UpgradeDataProvider<T extends UpgradeBase, R extends UpgradeSerialiser<? extends T>> implements DataProvider {
-    private static final Logger LOGGER = LogManager.getLogger();
-
     private final PackOutput output;
     private final String name;
     private final String folder;
@@ -167,5 +159,21 @@ public abstract class UpgradeDataProvider<T extends UpgradeBase, R extends Upgra
         public void add(Consumer<Upgrade<R>> add) {
             add.accept(this);
         }
+
+        /**
+         * Return a new {@link Upgrade} which requires the given mod to be present.
+         * <p>
+         * This uses mod-loader-specific hooks (Forge's crafting conditions and Fabric's resource conditions). If using
+         * this in a multi-loader setup, you must generate resources separately for the two loaders.
+         *
+         * @param modId The id of the mod.
+         * @return A new upgrade instance.
+         */
+        public Upgrade<R> requireMod(String modId) {
+            return new Upgrade<>(id, serialiser, json -> {
+                PlatformHelper.get().addRequiredModCondition(json, modId);
+                serialise.accept(json);
+            });
+        }
     }
 }

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

@@ -4,6 +4,8 @@
 
 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;
@@ -63,6 +65,15 @@ public interface PlatformHelper {
         return item.getTag();
     }
 
+    /**
+     * Add a resource condition which requires a mod to be loaded. This should be used by data providers such as
+     * {@link UpgradeDataProvider}.
+     *
+     * @param object The JSON object we're generating.
+     * @param modId  The mod ID that we require.
+     */
+    void addRequiredModCondition(JsonObject object, String modId);
+
     final class Instance {
         static final @Nullable PlatformHelper INSTANCE;
         static final @Nullable Throwable ERROR;

projects/common/build.gradle.kts

@@ -2,14 +2,13 @@
 //
 // SPDX-License-Identifier: MPL-2.0
 
-import cc.tweaked.gradle.annotationProcessorEverywhere
-import cc.tweaked.gradle.clientClasses
-import cc.tweaked.gradle.commonClasses
+import cc.tweaked.gradle.*
 
 plugins {
-    id("cc-tweaked.publishing")
     id("cc-tweaked.vanilla")
     id("cc-tweaked.gametest")
+    id("cc-tweaked.illuaminate")
+    id("cc-tweaked.publishing")
 }
 
 minecraft {
@@ -19,6 +18,10 @@ minecraft {
     )
 }
 
+configurations {
+    register("cctJavadoc")
+}
+
 dependencies {
     // Pull in our other projects. See comments in MinecraftConfigurations on this nastiness.
     implementation(project(":core"))
@@ -26,6 +29,7 @@ dependencies {
     clientImplementation(clientClasses(project(":common-api")))
 
     compileOnly(libs.bundles.externalMods.common)
+    clientCompileOnly(variantOf(libs.emi) { classifier("api") })
 
     compileOnly(libs.mixin)
     annotationProcessorEverywhere(libs.autoService)
@@ -38,4 +42,55 @@ dependencies {
     testModImplementation(testFixtures(project(":core")))
     testModImplementation(testFixtures(project(":common")))
     testModImplementation(libs.bundles.kotlin)
+
+    testFixturesImplementation(testFixtures(project(":core")))
+
+    "cctJavadoc"(libs.cctJavadoc)
+}
+
+illuaminate {
+    version.set(libs.versions.illuaminate)
+}
+
+val luaJavadoc by tasks.registering(Javadoc::class) {
+    description = "Generates documentation for Java-side Lua functions."
+    group = JavaBasePlugin.DOCUMENTATION_GROUP
+
+    val sourceSets = listOf(sourceSets.main.get(), project(":core").sourceSets.main.get())
+    for (sourceSet in sourceSets) {
+        source(sourceSet.java)
+        classpath += sourceSet.compileClasspath
+    }
+
+    destinationDir = layout.buildDirectory.dir("docs/luaJavadoc").get().asFile
+
+    val options = options as StandardJavadocDocletOptions
+    options.docletpath = configurations["cctJavadoc"].files.toList()
+    options.doclet = "cc.tweaked.javadoc.LuaDoclet"
+    options.addStringOption("project-root", rootProject.file(".").absolutePath)
+    options.noTimestamp(false)
+
+    javadocTool.set(
+        javaToolchains.javadocToolFor {
+            languageVersion.set(cc.tweaked.gradle.CCTweakedPlugin.JAVA_VERSION)
+        },
+    )
+}
+
+val lintLua by tasks.registering(IlluaminateExec::class) {
+    group = JavaBasePlugin.VERIFICATION_GROUP
+    description = "Lint Lua (and Lua docs) with illuaminate"
+
+    // Config files
+    inputs.file(rootProject.file("illuaminate.sexp")).withPropertyName("illuaminate.sexp")
+    // Sources
+    inputs.files(rootProject.fileTree("doc")).withPropertyName("docs")
+    inputs.files(project(":core").fileTree("src/main/resources/data/computercraft/lua")).withPropertyName("lua rom")
+    inputs.files(luaJavadoc)
+
+    args = listOf("lint")
+    workingDir = rootProject.projectDir
+
+    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::") }
 }

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

@@ -13,6 +13,7 @@ import dan200.computercraft.client.render.RenderTypes;
 import dan200.computercraft.client.render.TurtleBlockEntityRenderer;
 import dan200.computercraft.client.render.monitor.MonitorBlockEntityRenderer;
 import dan200.computercraft.client.turtle.TurtleModemModeller;
+import dan200.computercraft.client.turtle.TurtleUpgradeModellers;
 import dan200.computercraft.core.util.Colour;
 import dan200.computercraft.shared.ModRegistry;
 import dan200.computercraft.shared.common.IColouredItem;
@@ -20,6 +21,7 @@ import dan200.computercraft.shared.computer.inventory.AbstractComputerMenu;
 import dan200.computercraft.shared.computer.inventory.ViewComputerMenu;
 import dan200.computercraft.shared.media.items.DiskItem;
 import dan200.computercraft.shared.media.items.TreasureDiskItem;
+import net.minecraft.client.Minecraft;
 import net.minecraft.client.color.item.ItemColor;
 import net.minecraft.client.gui.screens.MenuScreens;
 import net.minecraft.client.multiplayer.ClientLevel;
@@ -29,6 +31,7 @@ import net.minecraft.client.renderer.blockentity.BlockEntityRenderers;
 import net.minecraft.client.renderer.item.ClampedItemPropertyFunction;
 import net.minecraft.client.renderer.item.ItemProperties;
 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.item.Item;
@@ -106,25 +109,11 @@ public final class ClientRegistry {
         for (var item : items) ItemProperties.register(item.get(), id, getter);
     }
 
+    public static void registerReloadListeners(Consumer<PreparableReloadListener> register, Minecraft minecraft) {
+        register.accept(GuiSprites.initialise(minecraft.getTextureManager()));
+    }
+
     private static final String[] EXTRA_MODELS = new String[]{
-        // Turtle upgrades
-        "block/turtle_modem_normal_off_left",
-        "block/turtle_modem_normal_on_left",
-        "block/turtle_modem_normal_off_right",
-        "block/turtle_modem_normal_on_right",
-
-        "block/turtle_modem_advanced_off_left",
-        "block/turtle_modem_advanced_on_left",
-        "block/turtle_modem_advanced_off_right",
-        "block/turtle_modem_advanced_on_right",
-
-        "block/turtle_crafting_table_left",
-        "block/turtle_crafting_table_right",
-
-        "block/turtle_speaker_left",
-        "block/turtle_speaker_right",
-
-        // Turtle block renderer
         "block/turtle_colour",
         "block/turtle_elf_overlay",
         "block/turtle_rainbow_overlay",
@@ -133,6 +122,7 @@ public final class ClientRegistry {
 
     public static void registerExtraModels(Consumer<ResourceLocation> register) {
         for (var model : EXTRA_MODELS) register.accept(new ResourceLocation(ComputerCraftAPI.MOD_ID, model));
+        TurtleUpgradeModellers.getDependencies().forEach(register);
     }
 
     public static void registerItemColours(BiConsumer<ItemColor, ItemLike> register) {

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

@@ -4,7 +4,6 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.client.gui.widgets.ComputerSidebar;
 import dan200.computercraft.client.gui.widgets.DynamicImageButton;
 import dan200.computercraft.client.gui.widgets.TerminalWidget;
@@ -19,6 +18,8 @@ import dan200.computercraft.shared.config.Config;
 import dan200.computercraft.shared.network.server.UploadFileMessage;
 import net.minecraft.ChatFormatting;
 import net.minecraft.Util;
+import net.minecraft.client.gui.GuiGraphics;
+import net.minecraft.client.gui.components.events.GuiEventListener;
 import net.minecraft.client.gui.screens.inventory.AbstractContainerScreen;
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.entity.player.Inventory;
@@ -33,7 +34,6 @@ import java.nio.ByteBuffer;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
@@ -124,10 +124,10 @@ public abstract class AbstractComputerScreen<T extends AbstractComputerMenu> ext
     }
 
     @Override
-    public void render(PoseStack stack, int mouseX, int mouseY, float partialTicks) {
-        renderBackground(stack);
-        super.render(stack, mouseX, mouseY, partialTicks);
-        renderTooltip(stack, mouseX, mouseY);
+    public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        renderBackground(graphics);
+        super.render(graphics, mouseX, mouseY, partialTicks);
+        renderTooltip(graphics, mouseX, mouseY);
     }
 
     @Override
@@ -145,9 +145,14 @@ public abstract class AbstractComputerScreen<T extends AbstractComputerMenu> ext
             || super.mouseDragged(x, y, button, deltaX, deltaY);
     }
 
+    @Override
+    public void setFocused(@Nullable GuiEventListener listener) {
+        // Don't clear and re-focus if we're already focused.
+        if (listener != getFocused()) super.setFocused(listener);
+    }
 
     @Override
-    protected void renderLabels(PoseStack transform, int mouseX, int mouseY) {
+    protected void renderLabels(GuiGraphics graphics, int mouseX, int mouseY) {
         // Skip rendering labels.
     }
 
@@ -219,7 +224,7 @@ public abstract class AbstractComputerScreen<T extends AbstractComputerMenu> ext
 
     private void alert(Component title, Component message) {
         OptionScreen.show(minecraft, title, message,
-            Collections.singletonList(OptionScreen.newButton(OK, b -> minecraft.setScreen(this))),
+            List.of(OptionScreen.newButton(OK, b -> minecraft.setScreen(this))),
             () -> minecraft.setScreen(this)
         );
     }

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

@@ -4,16 +4,17 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.client.gui.widgets.ComputerSidebar;
 import dan200.computercraft.client.gui.widgets.TerminalWidget;
 import dan200.computercraft.client.render.ComputerBorderRenderer;
+import dan200.computercraft.client.render.RenderTypes;
+import dan200.computercraft.client.render.SpriteRenderer;
 import dan200.computercraft.shared.computer.inventory.AbstractComputerMenu;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.entity.player.Inventory;
 
 import static dan200.computercraft.client.render.ComputerBorderRenderer.BORDER;
-import static dan200.computercraft.client.render.RenderTypes.FULL_BRIGHT_LIGHTMAP;
 
 /**
  * A GUI for computers which renders the terminal (and border), but with no UI elements.
@@ -36,13 +37,17 @@ public final class ComputerScreen<T extends AbstractComputerMenu> extends Abstra
     }
 
     @Override
-    public void renderBg(PoseStack stack, float partialTicks, int mouseX, int mouseY) {
+    public void renderBg(GuiGraphics graphics, float partialTicks, int mouseX, int mouseY) {
         // Draw a border around the terminal
         var terminal = getTerminal();
+        var spriteRenderer = SpriteRenderer.createForGui(graphics, RenderTypes.GUI_SPRITES);
+        var computerTextures = GuiSprites.getComputerTextures(family);
+
         ComputerBorderRenderer.render(
-            stack.last().pose(), ComputerBorderRenderer.getTexture(family), terminal.getX(), terminal.getY(),
-            FULL_BRIGHT_LIGHTMAP, terminal.getWidth(), terminal.getHeight()
+            spriteRenderer, computerTextures,
+            terminal.getX(), terminal.getY(), terminal.getWidth(), terminal.getHeight(), false
         );
-        ComputerSidebar.renderBackground(stack, leftPos, topPos + sidebarYOffset);
+        ComputerSidebar.renderBackground(spriteRenderer, computerTextures, leftPos, topPos + sidebarYOffset);
+        graphics.flush(); // Flush to ensure background textures are drawn before foreground.
     }
 }

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

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

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

@@ -0,0 +1,127 @@
+// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package dan200.computercraft.client.gui;
+
+import dan200.computercraft.api.ComputerCraftAPI;
+import dan200.computercraft.client.render.ComputerBorderRenderer;
+import dan200.computercraft.data.client.ClientDataProviders;
+import dan200.computercraft.shared.computer.core.ComputerFamily;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.client.renderer.texture.TextureManager;
+import net.minecraft.client.resources.TextureAtlasHolder;
+import net.minecraft.resources.ResourceLocation;
+
+import javax.annotation.Nullable;
+import java.util.Objects;
+import java.util.stream.Stream;
+
+/**
+ * Sprite sheet for all GUI texutres in the mod.
+ */
+public final class GuiSprites extends TextureAtlasHolder {
+    public static final ResourceLocation SPRITE_SHEET = new ResourceLocation(ComputerCraftAPI.MOD_ID, "gui");
+    public static final ResourceLocation TEXTURE = SPRITE_SHEET.withPath(x -> "textures/atlas/" + x + ".png");
+
+    public static final ButtonTextures TURNED_OFF = button("turned_off");
+    public static final ButtonTextures TURNED_ON = button("turned_on");
+    public static final ButtonTextures TERMINATE = button("terminate");
+
+    public static final ComputerTextures COMPUTER_NORMAL = computer("normal", true, true);
+    public static final ComputerTextures COMPUTER_ADVANCED = computer("advanced", true, true);
+    public static final ComputerTextures COMPUTER_COMMAND = computer("command", false, true);
+    public static final ComputerTextures COMPUTER_COLOUR = computer("colour", true, false);
+
+    private static ButtonTextures button(String name) {
+        return new ButtonTextures(
+            new ResourceLocation(ComputerCraftAPI.MOD_ID, "gui/buttons/" + name),
+            new ResourceLocation(ComputerCraftAPI.MOD_ID, "gui/buttons/" + name + "_hover")
+        );
+    }
+
+    private static ComputerTextures computer(String name, boolean pocket, boolean sidebar) {
+        return new ComputerTextures(
+            new ResourceLocation(ComputerCraftAPI.MOD_ID, "gui/border_" + name),
+            pocket ? new ResourceLocation(ComputerCraftAPI.MOD_ID, "gui/pocket_bottom_" + name) : null,
+            sidebar ? new ResourceLocation(ComputerCraftAPI.MOD_ID, "gui/sidebar_" + name) : null
+        );
+    }
+
+    private static @Nullable GuiSprites instance;
+
+    private GuiSprites(TextureManager textureManager) {
+        super(textureManager, TEXTURE, SPRITE_SHEET);
+    }
+
+    /**
+     * Initialise the singleton {@link GuiSprites} instance.
+     *
+     * @param textureManager The current texture manager.
+     * @return The singleton {@link GuiSprites} instance, to register as resource reload listener.
+     */
+    public static GuiSprites initialise(TextureManager textureManager) {
+        if (instance != null) throw new IllegalStateException("GuiSprites has already been initialised");
+        return instance = new GuiSprites(textureManager);
+    }
+
+    /**
+     * Lookup a texture on the atlas.
+     *
+     * @param texture The texture to find.
+     * @return The sprite on the atlas.
+     */
+    public static TextureAtlasSprite get(ResourceLocation texture) {
+        if (instance == null) throw new IllegalStateException("GuiSprites has not been initialised");
+        return instance.getSprite(texture);
+    }
+
+    /**
+     * Get the appropriate textures to use for a particular computer family.
+     *
+     * @param family The computer family.
+     * @return The family-specific textures.
+     */
+    public static ComputerTextures getComputerTextures(ComputerFamily family) {
+        return switch (family) {
+            case NORMAL -> COMPUTER_NORMAL;
+            case ADVANCED -> COMPUTER_ADVANCED;
+            case COMMAND -> COMPUTER_COMMAND;
+        };
+    }
+
+    /**
+     * A set of sprites for a button, with both a normal and "active" state.
+     *
+     * @param normal The normal texture for the button.
+     * @param active The texture for the button when it is active (hovered or focused).
+     */
+    public record ButtonTextures(ResourceLocation normal, ResourceLocation active) {
+        public TextureAtlasSprite get(boolean active) {
+            return GuiSprites.get(active ? this.active : normal);
+        }
+
+        public Stream<ResourceLocation> textures() {
+            return Stream.of(normal, active);
+        }
+    }
+
+    /**
+     * Set the set of sprites for a computer family.
+     *
+     * @param border       The texture for the computer's border.
+     * @param pocketBottom The texture for the bottom of a pocket computer.
+     * @param sidebar      The texture for the computer sidebar.
+     * @see ComputerBorderRenderer
+     * @see ClientDataProviders
+     */
+    public record ComputerTextures(
+        ResourceLocation border,
+        @Nullable ResourceLocation pocketBottom,
+        @Nullable ResourceLocation sidebar
+    ) {
+        public Stream<ResourceLocation> textures() {
+            return Stream.of(border, pocketBottom, sidebar).filter(Objects::nonNull);
+        }
+    }
+}

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

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

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

@@ -1,14 +1,14 @@
 // SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
 //
-// SPDX-License-Identifier: LicenseRef-CCPL
+// SPDX-License-Identifier: MPL-2.0
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.client.gui.widgets.TerminalWidget;
 import dan200.computercraft.core.terminal.Terminal;
 import dan200.computercraft.shared.computer.inventory.AbstractComputerMenu;
 import net.minecraft.client.KeyMapping;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.screens.Screen;
 import net.minecraft.client.gui.screens.inventory.MenuAccess;
 import net.minecraft.network.chat.Component;
@@ -42,7 +42,6 @@ public class NoTermComputerScreen<T extends AbstractComputerMenu> extends Screen
 
     @Override
     protected void init() {
-        passEvents = true; // Pass mouse vents through to the game's mouse handler.
         // First ensure we're still grabbing the mouse, so the user can look around. Then reset bits of state that
         // grabbing unsets.
         minecraft.mouseHandler.grabMouse();
@@ -91,15 +90,15 @@ public class NoTermComputerScreen<T extends AbstractComputerMenu> extends Screen
     }
 
     @Override
-    public void render(PoseStack transform, int mouseX, int mouseY, float partialTicks) {
-        super.render(transform, mouseX, mouseY, partialTicks);
+    public void render(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        super.render(graphics, mouseX, mouseY, partialTicks);
 
         var font = minecraft.font;
         var lines = font.split(Component.translatable("gui.computercraft.pocket_computer_overlay"), (int) (width * 0.8));
-        var y = 10.0f;
+        var y = 10;
         for (var line : lines) {
-            font.drawShadow(transform, line, (float) ((width / 2) - (minecraft.font.width(line) / 2)), y, 0xFFFFFF);
-            y += 9.0f;
+            graphics.drawString(font, line, (width / 2) - (minecraft.font.width(line) / 2), y, 0xFFFFFF, true);
+            y += 9;
         }
     }
 }

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

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

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

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

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

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

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

@@ -4,15 +4,15 @@
 
 package dan200.computercraft.client.gui;
 
-import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.PoseStack;
 import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.client.gui.widgets.ComputerSidebar;
 import dan200.computercraft.client.gui.widgets.TerminalWidget;
-import dan200.computercraft.client.render.ComputerBorderRenderer;
+import dan200.computercraft.client.render.RenderTypes;
+import dan200.computercraft.client.render.SpriteRenderer;
 import dan200.computercraft.shared.computer.core.ComputerFamily;
 import dan200.computercraft.shared.computer.inventory.AbstractComputerMenu;
 import dan200.computercraft.shared.turtle.inventory.TurtleMenu;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.network.chat.Component;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.entity.player.Inventory;
@@ -44,23 +44,25 @@ public class TurtleScreen extends AbstractComputerScreen<TurtleMenu> {
     }
 
     @Override
-    protected void renderBg(PoseStack transform, float partialTicks, int mouseX, int mouseY) {
+    protected void renderBg(GuiGraphics graphics, float partialTicks, int mouseX, int mouseY) {
         var advanced = family == ComputerFamily.ADVANCED;
-        RenderSystem.setShaderTexture(0, advanced ? BACKGROUND_ADVANCED : BACKGROUND_NORMAL);
-        blit(transform, leftPos + AbstractComputerMenu.SIDEBAR_WIDTH, topPos, 0, 0, 0, TEX_WIDTH, TEX_HEIGHT, FULL_TEX_SIZE, FULL_TEX_SIZE);
+        var texture = advanced ? BACKGROUND_ADVANCED : BACKGROUND_NORMAL;
+        graphics.blit(texture, leftPos + AbstractComputerMenu.SIDEBAR_WIDTH, topPos, 0, 0, 0, TEX_WIDTH, TEX_HEIGHT, FULL_TEX_SIZE, FULL_TEX_SIZE);
 
         // Render selected slot
         var slot = getMenu().getSelectedSlot();
         if (slot >= 0) {
             var slotX = slot % 4;
             var slotY = slot / 4;
-            blit(transform,
+            graphics.blit(texture,
                 leftPos + TURTLE_START_X - 2 + slotX * 18, topPos + PLAYER_START_Y - 2 + slotY * 18, 0,
                 0, 217, 24, 24, FULL_TEX_SIZE, FULL_TEX_SIZE
             );
         }
 
-        RenderSystem.setShaderTexture(0, advanced ? ComputerBorderRenderer.BACKGROUND_ADVANCED : ComputerBorderRenderer.BACKGROUND_NORMAL);
-        ComputerSidebar.renderBackground(transform, leftPos, topPos + sidebarYOffset);
+        // Render sidebar
+        var spriteRenderer = SpriteRenderer.createForGui(graphics, RenderTypes.GUI_SPRITES);
+        ComputerSidebar.renderBackground(spriteRenderer, GuiSprites.getComputerTextures(family), leftPos, topPos + sidebarYOffset);
+        graphics.flush(); // Flush to ensure background textures are drawn before foreground.
     }
 }

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

@@ -4,16 +4,13 @@
 
 package dan200.computercraft.client.gui.widgets;
 
-import com.mojang.blaze3d.vertex.PoseStack;
-import dan200.computercraft.api.ComputerCraftAPI;
+import dan200.computercraft.client.gui.GuiSprites;
 import dan200.computercraft.client.gui.widgets.DynamicImageButton.HintedMessage;
-import dan200.computercraft.client.render.ComputerBorderRenderer;
+import dan200.computercraft.client.render.SpriteRenderer;
 import dan200.computercraft.shared.computer.core.InputHandler;
 import dan200.computercraft.shared.computer.inventory.AbstractComputerMenu;
 import net.minecraft.client.gui.components.AbstractWidget;
-import net.minecraft.client.gui.screens.Screen;
 import net.minecraft.network.chat.Component;
-import net.minecraft.resources.ResourceLocation;
 
 import java.util.function.BooleanSupplier;
 import java.util.function.Consumer;
@@ -22,22 +19,18 @@ import java.util.function.Consumer;
  * Registers buttons to interact with a computer.
  */
 public final class ComputerSidebar {
-    private static final ResourceLocation TEXTURE = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/buttons.png");
-
-    private static final int TEX_SIZE = 64;
-
     private static final int ICON_WIDTH = 12;
     private static final int ICON_HEIGHT = 12;
     private static final int ICON_MARGIN = 2;
 
-    private static final int ICON_TEX_Y_DIFF = 14;
-
     private static final int CORNERS_BORDER = 3;
     private static final int FULL_BORDER = CORNERS_BORDER + ICON_MARGIN;
 
     private static final int BUTTONS = 2;
     private static final int HEIGHT = (ICON_HEIGHT + ICON_MARGIN * 2) * BUTTONS + CORNERS_BORDER * 2;
 
+    private static final int TEX_HEIGHT = 14;
+
     private ComputerSidebar() {
     }
 
@@ -51,16 +44,18 @@ public final class ComputerSidebar {
             Component.translatable("gui.computercraft.tooltip.turn_off.key")
         );
         add.accept(new DynamicImageButton(
-            x, y, ICON_WIDTH, ICON_HEIGHT, () -> isOn.getAsBoolean() ? 15 : 1, 1, ICON_TEX_Y_DIFF,
-            TEXTURE, TEX_SIZE, TEX_SIZE, b -> toggleComputer(isOn, input),
+            x, y, ICON_WIDTH, ICON_HEIGHT,
+            h -> isOn.getAsBoolean() ? GuiSprites.TURNED_ON.get(h) : GuiSprites.TURNED_OFF.get(h),
+            b -> toggleComputer(isOn, input),
             () -> isOn.getAsBoolean() ? turnOff : turnOn
         ));
 
         y += ICON_HEIGHT + ICON_MARGIN * 2;
 
         add.accept(new DynamicImageButton(
-            x, y, ICON_WIDTH, ICON_HEIGHT, 29, 1, ICON_TEX_Y_DIFF,
-            TEXTURE, TEX_SIZE, TEX_SIZE, b -> input.queueEvent("terminate"),
+            x, y, ICON_WIDTH, ICON_HEIGHT,
+            GuiSprites.TERMINATE::get,
+            b -> input.queueEvent("terminate"),
             new HintedMessage(
                 Component.translatable("gui.computercraft.tooltip.terminate"),
                 Component.translatable("gui.computercraft.tooltip.terminate.key")
@@ -68,22 +63,12 @@ public final class ComputerSidebar {
         ));
     }
 
-    public static void renderBackground(PoseStack transform, int x, int y) {
-        Screen.blit(transform,
-            x, y, 0, 102, AbstractComputerMenu.SIDEBAR_WIDTH, FULL_BORDER,
-            ComputerBorderRenderer.TEX_SIZE, ComputerBorderRenderer.TEX_SIZE
-        );
+    public static void renderBackground(SpriteRenderer renderer, GuiSprites.ComputerTextures textures, int x, int y) {
+        var texture = textures.sidebar();
+        if (texture == null) throw new NullPointerException(textures + " has no sidebar texture");
+        var sprite = GuiSprites.get(texture);
 
-        Screen.blit(transform,
-            x, y + FULL_BORDER, AbstractComputerMenu.SIDEBAR_WIDTH, HEIGHT - FULL_BORDER * 2,
-            0, 107, AbstractComputerMenu.SIDEBAR_WIDTH, 4,
-            ComputerBorderRenderer.TEX_SIZE, ComputerBorderRenderer.TEX_SIZE
-        );
-
-        Screen.blit(transform,
-            x, y + HEIGHT - FULL_BORDER, 0, 111, AbstractComputerMenu.SIDEBAR_WIDTH, FULL_BORDER,
-            ComputerBorderRenderer.TEX_SIZE, ComputerBorderRenderer.TEX_SIZE
-        );
+        renderer.blitVerticalSliced(sprite, x, y, AbstractComputerMenu.SIDEBAR_WIDTH, HEIGHT, FULL_BORDER, FULL_BORDER, TEX_HEIGHT);
     }
 
     private static void toggleComputer(BooleanSupplier isOn, InputHandler input) {

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

@@ -5,15 +5,15 @@
 package dan200.computercraft.client.gui.widgets;
 
 import com.mojang.blaze3d.systems.RenderSystem;
-import com.mojang.blaze3d.vertex.PoseStack;
+import it.unimi.dsi.fastutil.booleans.Boolean2ObjectFunction;
 import net.minecraft.ChatFormatting;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.Button;
 import net.minecraft.client.gui.components.Tooltip;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
 import net.minecraft.network.chat.Component;
-import net.minecraft.resources.ResourceLocation;
 
 import javax.annotation.Nullable;
-import java.util.function.IntSupplier;
 import java.util.function.Supplier;
 
 /**
@@ -21,62 +21,41 @@ import java.util.function.Supplier;
  * dynamically.
  */
 public class DynamicImageButton extends Button {
-    private final ResourceLocation texture;
-    private final IntSupplier xTexStart;
-    private final int yTexStart;
-    private final int yDiffTex;
-    private final int textureWidth;
-    private final int textureHeight;
+    private final Boolean2ObjectFunction<TextureAtlasSprite> texture;
     private final Supplier<HintedMessage> message;
 
     public DynamicImageButton(
-        int x, int y, int width, int height, int xTexStart, int yTexStart, int yDiffTex,
-        ResourceLocation texture, int textureWidth, int textureHeight,
-        OnPress onPress, HintedMessage message
+        int x, int y, int width, int height, Boolean2ObjectFunction<TextureAtlasSprite> texture, OnPress onPress,
+        HintedMessage message
     ) {
-        this(
-            x, y, width, height, () -> xTexStart, yTexStart, yDiffTex,
-            texture, textureWidth, textureHeight,
-            onPress, () -> message
-        );
+        this(x, y, width, height, texture, onPress, () -> message);
     }
 
     public DynamicImageButton(
-        int x, int y, int width, int height, IntSupplier xTexStart, int yTexStart, int yDiffTex,
-        ResourceLocation texture, int textureWidth, int textureHeight,
+        int x, int y, int width, int height,
+        Boolean2ObjectFunction<TextureAtlasSprite> texture,
         OnPress onPress, Supplier<HintedMessage> message
     ) {
         super(x, y, width, height, Component.empty(), onPress, DEFAULT_NARRATION);
-        this.textureWidth = textureWidth;
-        this.textureHeight = textureHeight;
-        this.xTexStart = xTexStart;
-        this.yTexStart = yTexStart;
-        this.yDiffTex = yDiffTex;
         this.texture = texture;
         this.message = message;
     }
 
     @Override
-    public void renderWidget(PoseStack stack, int mouseX, int mouseY, float partialTicks) {
-        RenderSystem.setShaderTexture(0, texture);
+    public void renderWidget(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
+        var texture = this.texture.get(isHoveredOrFocused());
+
         RenderSystem.disableDepthTest();
-
-        var yTex = yTexStart;
-        if (isHoveredOrFocused()) yTex += yDiffTex;
-
-        blit(stack, getX(), getY(), xTexStart.getAsInt(), yTex, width, height, textureWidth, textureHeight);
+        graphics.blit(getX(), getY(), 0, width, height, texture);
         RenderSystem.enableDepthTest();
     }
 
     @Override
-    public Component getMessage() {
-        return message.get().message;
-    }
-
-    @Override
-    public void render(PoseStack stack, int mouseX, int mouseY, float partialTicks) {
-        setTooltip(message.get().tooltip());
-        super.render(stack, mouseX, mouseY, partialTicks);
+    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) {

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

@@ -4,14 +4,14 @@
 
 package dan200.computercraft.client.gui.widgets;
 
-import com.mojang.blaze3d.vertex.PoseStack;
 import com.mojang.blaze3d.vertex.Tesselator;
 import dan200.computercraft.client.render.RenderTypes;
 import dan200.computercraft.client.render.text.FixedWidthFontRenderer;
 import dan200.computercraft.core.terminal.Terminal;
+import dan200.computercraft.core.util.StringUtil;
 import dan200.computercraft.shared.computer.core.InputHandler;
-import net.minecraft.SharedConstants;
 import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.AbstractWidget;
 import net.minecraft.client.gui.narration.NarratedElementType;
 import net.minecraft.client.gui.narration.NarrationElementOutput;
@@ -112,26 +112,8 @@ public class TerminalWidget extends AbstractWidget {
     }
 
     private void paste() {
-        var clipboard = Minecraft.getInstance().keyboardHandler.getClipboard();
-
-        // Clip to the first occurrence of \r or \n
-        var newLineIndex1 = clipboard.indexOf('\r');
-        var newLineIndex2 = clipboard.indexOf('\n');
-        if (newLineIndex1 >= 0 && newLineIndex2 >= 0) {
-            clipboard = clipboard.substring(0, Math.min(newLineIndex1, newLineIndex2));
-        } else if (newLineIndex1 >= 0) {
-            clipboard = clipboard.substring(0, newLineIndex1);
-        } else if (newLineIndex2 >= 0) {
-            clipboard = clipboard.substring(0, newLineIndex2);
-        }
-
-        // Filter the string
-        clipboard = SharedConstants.filterText(clipboard);
-        if (!clipboard.isEmpty()) {
-            // Clip to 512 characters and queue the event
-            if (clipboard.length() > 512) clipboard = clipboard.substring(0, 512);
-            computer.queueEvent("paste", new Object[]{ clipboard });
-        }
+        var clipboard = StringUtil.normaliseClipboardString(Minecraft.getInstance().keyboardHandler.getClipboard());
+        if (!clipboard.isEmpty()) computer.queueEvent("paste", new Object[]{ clipboard });
     }
 
     @Override
@@ -264,7 +246,7 @@ public class TerminalWidget extends AbstractWidget {
             keysDown.clear();
 
             // When blurring, we should make the last mouse button go up
-            if (lastMouseButton > 0) {
+            if (lastMouseButton >= 0) {
                 computer.mouseUp(lastMouseButton + 1, lastMouseX + 1, lastMouseY + 1);
                 lastMouseButton = -1;
             }
@@ -274,11 +256,11 @@ public class TerminalWidget extends AbstractWidget {
     }
 
     @Override
-    public void renderWidget(PoseStack transform, int mouseX, int mouseY, float partialTicks) {
+    public void renderWidget(GuiGraphics graphics, int mouseX, int mouseY, float partialTicks) {
         if (!visible) return;
 
         var bufferSource = MultiBufferSource.immediate(Tesselator.getInstance().getBuilder());
-        var emitter = FixedWidthFontRenderer.toVertexConsumer(transform, bufferSource.getBuffer(RenderTypes.TERMINAL));
+        var emitter = FixedWidthFontRenderer.toVertexConsumer(graphics.pose(), bufferSource.getBuffer(RenderTypes.TERMINAL));
 
         FixedWidthFontRenderer.drawTerminal(
             emitter,

projects/common/src/client/java/dan200/computercraft/client/integration/ShaderMod.java

@@ -47,7 +47,7 @@ public class ShaderMod {
         Optional<ShaderMod> get();
     }
 
-    private static class Storage {
+    private static final class Storage {
         static final ShaderMod INSTANCE = ServiceLoader.load(Provider.class)
             .stream()
             .flatMap(x -> x.get().get().stream())

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

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

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

@@ -26,13 +26,14 @@ import java.util.List;
  * <p>
  * This is typically used with a {@link BakedModel} subclass - see the loader-specific projects.
  */
-public final class ModelTransformer {
-    public static final int[] ORDER = new int[]{ 3, 2, 1, 0 };
-    public static final int STRIDE = DefaultVertexFormat.BLOCK.getIntegerSize();
+public class ModelTransformer {
+    private static final int[] INVERSE_ORDER = new int[]{ 3, 2, 1, 0 };
+
+    private static final int STRIDE = DefaultVertexFormat.BLOCK.getIntegerSize();
     private static final int POS_OFFSET = findOffset(DefaultVertexFormat.BLOCK, DefaultVertexFormat.ELEMENT_POSITION);
 
-    private final Matrix4f transformation;
-    private final boolean invert;
+    protected final Matrix4f transformation;
+    protected final boolean invert;
     private @Nullable TransformedQuads cache;
 
     public ModelTransformer(Transformation transformation) {
@@ -60,7 +61,7 @@ public final class ModelTransformer {
         for (var i = 0; i < 4; i++) {
             var inStart = STRIDE * i;
             // Reverse the order of the quads if we're inverting
-            var outStart = STRIDE * (invert ? ORDER[i] : i);
+            var outStart = getVertexOffset(i, invert);
             System.arraycopy(inputData, inStart, outputData, outStart, STRIDE);
 
             // Apply the matrix to our position
@@ -84,6 +85,10 @@ public final class ModelTransformer {
         return new BakedQuad(outputData, quad.getTintIndex(), direction, quad.getSprite(), quad.isShade());
     }
 
+    public static int getVertexOffset(int vertex, boolean invert) {
+        return (invert ? ModelTransformer.INVERSE_ORDER[vertex] : vertex) * ModelTransformer.STRIDE;
+    }
+
     private record TransformedQuads(List<BakedQuad> original, List<BakedQuad> transformed) {
     }
 

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

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

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

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

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

@@ -4,25 +4,17 @@
 
 package dan200.computercraft.client.render;
 
-import com.mojang.blaze3d.vertex.Tesselator;
-import com.mojang.blaze3d.vertex.VertexConsumer;
-import dan200.computercraft.api.ComputerCraftAPI;
-import dan200.computercraft.shared.computer.core.ComputerFamily;
-import net.minecraft.client.renderer.MultiBufferSource;
-import net.minecraft.client.renderer.RenderType;
-import net.minecraft.resources.ResourceLocation;
-import org.joml.Matrix4f;
+import dan200.computercraft.client.gui.GuiSprites;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+
+import static dan200.computercraft.client.render.SpriteRenderer.u;
+import static dan200.computercraft.client.render.SpriteRenderer.v;
 
 /**
  * Renders the borders of computers, either for a GUI ({@link dan200.computercraft.client.gui.ComputerScreen}) or
  * {@linkplain PocketItemRenderer in-hand pocket computers}.
  */
-public class ComputerBorderRenderer {
-    public static final ResourceLocation BACKGROUND_NORMAL = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_normal.png");
-    public static final ResourceLocation BACKGROUND_ADVANCED = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_advanced.png");
-    public static final ResourceLocation BACKGROUND_COMMAND = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_command.png");
-    public static final ResourceLocation BACKGROUND_COLOUR = new ResourceLocation(ComputerCraftAPI.MOD_ID, "textures/gui/corners_colour.png");
-
+public final class ComputerBorderRenderer {
     /**
      * The margin between the terminal and its border.
      */
@@ -33,100 +25,51 @@ public class ComputerBorderRenderer {
      */
     public static final int BORDER = 12;
 
-    private static final int CORNER_TOP_Y = 28;
-    private static final int CORNER_BOTTOM_Y = CORNER_TOP_Y + BORDER;
-    private static final int CORNER_LEFT_X = BORDER;
-    private static final int CORNER_RIGHT_X = CORNER_LEFT_X + BORDER;
-    private static final int BORDER_RIGHT_X = 36;
-    private static final int LIGHT_BORDER_Y = 56;
-    private static final int LIGHT_CORNER_Y = 80;
-
     public static final int LIGHT_HEIGHT = 8;
 
-    public static final int TEX_SIZE = 256;
-    private static final float TEX_SCALE = 1 / (float) TEX_SIZE;
+    private static final int TEX_SIZE = 36;
 
-    private final Matrix4f transform;
-    private final VertexConsumer builder;
-    private final int light;
-    private final int z;
-    private final float r, g, b;
-
-    public ComputerBorderRenderer(Matrix4f transform, VertexConsumer builder, int z, int light, float r, float g, float b) {
-        this.transform = transform;
-        this.builder = builder;
-        this.z = z;
-        this.light = light;
-        this.r = r;
-        this.g = g;
-        this.b = b;
+    private ComputerBorderRenderer() {
     }
 
-    public static ResourceLocation getTexture(ComputerFamily family) {
-        return switch (family) {
-            case NORMAL -> BACKGROUND_NORMAL;
-            case ADVANCED -> BACKGROUND_ADVANCED;
-            case COMMAND -> BACKGROUND_COMMAND;
-        };
-    }
-
-    public static RenderType getRenderType(ResourceLocation location) {
-        // See note in RenderTypes about why we use text rather than anything intuitive.
-        return RenderType.text(location);
-    }
-
-    public static void render(Matrix4f transform, ResourceLocation location, int x, int y, int light, int width, int height) {
-        var source = MultiBufferSource.immediate(Tesselator.getInstance().getBuilder());
-        render(transform, source.getBuffer(getRenderType(location)), x, y, 1, light, width, height, false, 1, 1, 1);
-        source.endBatch();
-    }
-
-    public static void render(Matrix4f transform, VertexConsumer buffer, int x, int y, int z, int light, int width, int height, boolean withLight, float r, float g, float b) {
-        new ComputerBorderRenderer(transform, buffer, z, light, r, g, b).doRender(x, y, width, height, withLight);
-    }
-
-    public void doRender(int x, int y, int width, int height, boolean withLight) {
+    public static void render(SpriteRenderer renderer, GuiSprites.ComputerTextures textures, int x, int y, int width, int height, boolean withLight) {
         var endX = x + width;
         var endY = y + height;
 
-        // Vertical bars
-        renderLine(x - BORDER, y, 0, CORNER_TOP_Y, BORDER, endY - y);
-        renderLine(endX, y, BORDER_RIGHT_X, CORNER_TOP_Y, BORDER, endY - y);
+        var border = GuiSprites.get(textures.border());
 
         // Top bar
-        renderLine(x, y - BORDER, 0, 0, endX - x, BORDER);
-        renderCorner(x - BORDER, y - BORDER, CORNER_LEFT_X, CORNER_TOP_Y);
-        renderCorner(endX, y - BORDER, CORNER_RIGHT_X, CORNER_TOP_Y);
+        blitBorder(renderer, border, x - BORDER, y - BORDER, 0, 0, BORDER, BORDER);
+        blitBorder(renderer, border, x, y - BORDER, BORDER, 0, width, BORDER);
+        blitBorder(renderer, border, endX, y - BORDER, BORDER * 2, 0, BORDER, BORDER);
+
+        // Vertical bars
+        blitBorder(renderer, border, x - BORDER, y, 0, BORDER, BORDER, height);
+        blitBorder(renderer, border, endX, y, BORDER * 2, BORDER, BORDER, height);
 
         // Bottom bar. We allow for drawing a stretched version, which allows for additional elements (such as the
         // pocket computer's lights).
         if (withLight) {
-            renderTexture(x, endY, 0, LIGHT_BORDER_Y, endX - x, BORDER + LIGHT_HEIGHT, BORDER, BORDER + LIGHT_HEIGHT);
-            renderTexture(x - BORDER, endY, CORNER_LEFT_X, LIGHT_CORNER_Y, BORDER, BORDER + LIGHT_HEIGHT);
-            renderTexture(endX, endY, CORNER_RIGHT_X, LIGHT_CORNER_Y, BORDER, BORDER + LIGHT_HEIGHT);
+            var pocketBottomTexture = textures.pocketBottom();
+            if (pocketBottomTexture == null) throw new NullPointerException(textures + " has no pocket texture");
+            var pocketBottom = GuiSprites.get(pocketBottomTexture);
+
+            renderer.blitHorizontalSliced(
+                pocketBottom, x - BORDER, endY, width + BORDER * 2, BORDER + LIGHT_HEIGHT,
+                BORDER, BORDER, BORDER * 3
+            );
         } else {
-            renderLine(x, endY, 0, BORDER, endX - x, BORDER);
-            renderCorner(x - BORDER, endY, CORNER_LEFT_X, CORNER_BOTTOM_Y);
-            renderCorner(endX, endY, CORNER_RIGHT_X, CORNER_BOTTOM_Y);
+            blitBorder(renderer, border, x - BORDER, endY, 0, BORDER * 2, BORDER, BORDER);
+            blitBorder(renderer, border, x, endY, BORDER, BORDER * 2, width, BORDER);
+            blitBorder(renderer, border, endX, endY, BORDER * 2, BORDER * 2, BORDER, BORDER);
         }
     }
 
-    private void renderCorner(int x, int y, int u, int v) {
-        renderTexture(x, y, u, v, BORDER, BORDER, BORDER, BORDER);
-    }
-
-    private void renderLine(int x, int y, int u, int v, int width, int height) {
-        renderTexture(x, y, u, v, width, height, BORDER, BORDER);
-    }
-
-    private void renderTexture(int x, int y, int u, int v, int width, int height) {
-        renderTexture(x, y, u, v, width, height, width, height);
-    }
-
-    private void renderTexture(int x, int y, int u, int v, int width, int height, int textureWidth, int textureHeight) {
-        builder.vertex(transform, x, y + height, z).color(r, g, b, 1.0f).uv(u * TEX_SCALE, (v + textureHeight) * TEX_SCALE).uv2(light).endVertex();
-        builder.vertex(transform, x + width, y + height, z).color(r, g, b, 1.0f).uv((u + textureWidth) * TEX_SCALE, (v + textureHeight) * TEX_SCALE).uv2(light).endVertex();
-        builder.vertex(transform, x + width, y, z).color(r, g, b, 1.0f).uv((u + textureWidth) * TEX_SCALE, v * TEX_SCALE).uv2(light).endVertex();
-        builder.vertex(transform, x, y, z).color(r, g, b, 1.0f).uv(u * TEX_SCALE, v * TEX_SCALE).uv2(light).endVertex();
+    private static void blitBorder(SpriteRenderer renderer, TextureAtlasSprite sprite, int x, int y, int u, int v, int width, int height) {
+        renderer.blit(
+            x, y, width, height,
+            u(sprite, u, TEX_SIZE), v(sprite, v, TEX_SIZE),
+            u(sprite, u + BORDER, TEX_SIZE), v(sprite, v + BORDER, TEX_SIZE)
+        );
     }
 }

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

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

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

@@ -6,6 +6,7 @@ package dan200.computercraft.client.render;
 
 import com.mojang.blaze3d.vertex.PoseStack;
 import com.mojang.math.Axis;
+import dan200.computercraft.client.gui.GuiSprites;
 import dan200.computercraft.client.pocket.ClientPocketComputers;
 import dan200.computercraft.client.render.text.FixedWidthFontRenderer;
 import dan200.computercraft.core.util.Colour;
@@ -72,13 +73,14 @@ public final class PocketItemRenderer extends ItemMapLikeRenderer {
     }
 
     private static void renderFrame(Matrix4f transform, MultiBufferSource render, ComputerFamily family, int colour, int light, int width, int height) {
-        var texture = colour != -1 ? ComputerBorderRenderer.BACKGROUND_COLOUR : ComputerBorderRenderer.getTexture(family);
+        var texture = colour != -1 ? GuiSprites.COMPUTER_COLOUR : GuiSprites.getComputerTextures(family);
 
-        var r = ((colour >>> 16) & 0xFF) / 255.0f;
-        var g = ((colour >>> 8) & 0xFF) / 255.0f;
-        var b = (colour & 0xFF) / 255.0f;
+        var r = (colour >>> 16) & 0xFF;
+        var g = (colour >>> 8) & 0xFF;
+        var b = colour & 0xFF;
 
-        ComputerBorderRenderer.render(transform, render.getBuffer(ComputerBorderRenderer.getRenderType(texture)), 0, 0, 0, light, width, height, true, r, g, b);
+        var spriteRenderer = new SpriteRenderer(transform, render.getBuffer(RenderTypes.GUI_SPRITES), 0, light, r, g, b);
+        ComputerBorderRenderer.render(spriteRenderer, texture, 0, 0, width, height, true);
     }
 
     private static void renderLight(PoseStack transform, MultiBufferSource render, int colour, int width, int height) {