Merge branch 'mc-1.15.x' into mc-1.16.x

Fixes #793

.editorconfig

@@ -16,6 +16,3 @@ indent_size = 2
 
 [*.yml]
 indent_size = 2
-
-[*.properties]
-insert_final_newline = false

.github/matchers/checkstyle.json

@@ -0,0 +1,17 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "checkstyle",
+            "pattern": [
+                {
+                    "regexp": "^([a-z]+) ([\\w./-]+):(\\d+):(\\d+): (.*)$",
+                    "severity": 1,
+                    "file": 2,
+                    "line": 3,
+                    "column": 4,
+                    "message": 5
+                }
+            ]
+        }
+    ]
+}

.github/matchers/illuaminate.json

@@ -0,0 +1,18 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "illuaminate",
+            "severity": "warning",
+            "pattern": [
+                {
+                    "regexp": "^([\\w./-]+):\\[(\\d+):(\\d+)\\-(?:\\d+):(?:\\d+)\\]: (.*) \\[([a-z:-]+)\\]$",
+                    "file": 1,
+                    "line": 2,
+                    "column": 3,
+                    "message": 4,
+                    "code": 5
+                }
+            ]
+        }
+    ]
+}

.github/matchers/junit.json

@@ -0,0 +1,15 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "junit",
+            "pattern": [
+                {
+                    "regexp": "^## ([\\w./-]+):(\\d+): (.*)$",
+                    "file": 1,
+                    "line": 2,
+                    "message": 3
+                }
+            ]
+        }
+    ]
+}

.github/workflows/main-ci.yml

@@ -23,10 +23,15 @@ jobs:
         restore-keys: |
           ${{ runner.os }}-gradle-
 
+    - name: Disable Gradle daemon
+      run: |
+        mkdir -p ~/.gradle
+        echo "org.gradle.daemon=false" >> ~/.gradle/gradle.properties
+
     - name: Build with Gradle
       run: |
-        ./gradlew assemble --no-daemon || ./gradlew assemble --no-daemon
-        ./gradlew downloadAssets --no-daemon || ./gradlew downloadAssets --no-daemon
+        ./gradlew assemble || ./gradlew assemble
+        ./gradlew downloadAssets || ./gradlew downloadAssets
         ./gradlew build
 
     - name: Upload Jar
@@ -36,18 +41,21 @@ jobs:
         path: build/libs
 
     - name: Upload Coverage
-      run: bash <(curl -s https://codecov.io/bash)
-      continue-on-error: true
+      uses: codecov/codecov-action@v1
 
-    - name: Generate Java documentation stubs
-      run: ./gradlew luaJavadoc --no-daemon
+    - name: Parse test reports
+      run: ./tools/parse-reports.py
+      if: ${{ failure() }}
 
-    - name: Lint Lua code
+    - name: Cache pre-commit
+      uses: actions/cache@v2
+      with:
+        path: ~/.cache/pre-commit
+        key: ${{ runner.os }}-pre-commit-${{ hashFiles('config/pre-commit/config.yml') }}
+        restore-keys: |
+          ${{ runner.os }}-pre-commit-
+
+    - name: Run linters
       run: |
-        test -d bin || mkdir bin
-        test -f bin/illuaminate || wget -q -Obin/illuaminate https://squiddev.cc/illuaminate/linux-x86-64/illuaminate
-        chmod +x bin/illuaminate
-        bin/illuaminate lint
-
-    - name: Check whitespace
-      run: python3 tools/check-lines.py
+        pip install pre-commit
+        pre-commit run --config config/pre-commit/config.yml --show-diff-on-failure --all --color=always

CONTRIBUTING.md

@@ -51,18 +51,10 @@ illuaminate, which spits out our HTML.
 For various reasons, getting the environment set up to build documentation can be pretty complex. I'd quite like to
 automate this via Docker and/or nix in the future, but this needs to be done manually for now.
 
-First, you will need JDK 9+ (in addition to JDK 8 which is required to build Minecraft itself). Sadly our version of
-Gradle doesn't support multiple toolchains, and so you need to install this yourself.
-
-Gradle needs to be told about this JDK via the `JAVA_HOME_11_X64` environment variable or adding `java11Home` to 
-`~/.gradle/gradle.properties`. On my system this looks like:
-
-```properties
-java11Home=/usr/lib/jvm/java-11-openjdk/
-```
-
-If you just want to build the documentation stubs for linting, this is enough. However, if you want to build the full
-website, you will also need to install a few Node packages by running `npm ci`.
+This tooling is only needed if you need to build the whole website. If you just want to generate the Lua stubs, you can
+skp this section.
+ - Install Node/npm and install our Node packages with `npm ci`.
+ - Install [illuaminate][illuaminate-usage] as described above.
 
 #### Building documentation
 Gradle should be your entrypoint to building most documentation. There's two tasks which are of interest:
@@ -73,7 +65,7 @@ Gradle should be your entrypoint to building most documentation. There's two tas
 
 #### Writing documentation
 illuaminate's documentation system is not currently documented (somewhat ironic), but is _largely_ the same as
-[ldoc][ldoc]. Documentation comments are written in Markdown, 
+[ldoc][ldoc]. Documentation comments are written in Markdown,
 
 Our markdown engine does _not_ support GitHub flavoured markdown, and so does not support all the features one might
 expect (such as tables). It is very much recommended that you build and preview the docs locally first.
@@ -85,18 +77,18 @@ entire test suite (and some additional bits of verification).
 Before we get into writing tests, it's worth mentioning the various test suites that CC: Tweaked has:
  - "Core" Java (`./src/test/java`): These test core bits of the mod which don't require any Minecraft interaction.
    This includes the `@LuaFunction` system, file system code, etc...
-   
+
    These tests are run by `./gradlew test`.
 
  - CraftOS (`./src/test/resources/test-rom/`): These tests are written in Lua, and ensure the Lua environment, libraries
    and programs work as expected. These are (generally) written to be able to be run on emulators too, to provide some
    sort of compliance test.
-   
+
    These tests are run by the '"Core" Java' test suite, and so are also run with `./gradlew test`.
 
  - In-game (`./src/test/java/dan200/computercraft/ingame/`): These tests are run on an actual Minecraft server, using
    [the same system Mojang do][mc-test]. The aim of these is to test in-game behaviour of blocks and peripherals.
-   
+
    These are run by `./gradlew testInGame`.
 
 ## CraftOS tests

LICENSE

@@ -19,14 +19,14 @@ Mod: The mod code designated by the present license, in source form, binary
 form, as obtained standalone, as part of a wider distribution or resulting from
 the compilation of the original or modified sources.
 
-Dependency: Code required for the mod to work properly. This includes 
+Dependency: Code required for the mod to work properly. This includes
 dependencies required to compile the code as well as any file or modification
 that is explicitly or implicitly required for the mod to be working.
 
 1. Scope
 --------
 
-The present license is granted to any user of the mod. As a prerequisite, 
+The present license is granted to any user of the mod. As a prerequisite,
 a user must own a legally acquired copy of Minecraft
 
 2. Liability
@@ -41,13 +41,13 @@ or misuse of this mod fall on the user.
 3. Play rights
 --------------
 
-The user is allowed to install this mod on a Minecraft client or server and to play 
+The user is allowed to install this mod on a Minecraft client or server and to play
 without restriction.
 
 4. Modification rights
 ----------------------
 
-The user has the right to decompile the source code, look at either the 
+The user has the right to decompile the source code, look at either the
 decompiled version or the original source code, and to modify it.
 
 5. Distribution of original or modified copy rights
@@ -61,10 +61,10 @@ include:
    - patch to its source or binary files
    - any copy of a portion of its binary source files
 
-The user is allowed to redistribute this mod partially, in totality, or 
+The user is allowed to redistribute this mod partially, in totality, or
 included in a distribution.
 
-When distributing binary files, the user must provide means to obtain its 
+When distributing binary files, the user must provide means to obtain its
 entire set of sources or modified sources at no cost.
 
 All distributions of this mod must remain licensed under the CCPL.
@@ -92,7 +92,7 @@ must be made available at no cost and remain licensed under the CCPL.
 ---------------
 
 If you choose to contribute code or assets to be included in this mod, you
-agree that, if added to to the main repository at 
+agree that, if added to to the main repository at
 https://github.com/dan200/ComputerCraft, your contributions will be covered by
 this license, and that Daniel Ratcliffe will retain the right to re-license the
 mod, including your contributions, in part or in whole, under other licenses.

build.gradle

@@ -4,37 +4,48 @@ buildscript {
         mavenCentral()
         maven {
             name = "forge"
-            url = "https://files.minecraftforge.net/maven"
+            url = "https://maven.minecraftforge.net"
+        }
+        maven {
+            name = "Sponge (Mixin)"
+            url = "https://repo.spongepowered.org/repository/maven-public/"
+            content { includeGroup "org.spongepowered" }
         }
     }
     dependencies {
         classpath 'com.google.code.gson:gson:2.8.1'
-        classpath 'net.minecraftforge.gradle:ForgeGradle:3.0.190'
+        classpath 'net.minecraftforge.gradle:ForgeGradle:4.1.9'
         classpath 'net.sf.proguard:proguard-gradle:6.1.0beta2'
-        classpath 'org.ajoberstar.grgit:grgit-gradle:3.0.0'
+        classpath 'org.spongepowered:mixingradle:0.7-SNAPSHOT'
     }
 }
 
 plugins {
     id "checkstyle"
     id "jacoco"
+    id "maven-publish"
     id "com.github.hierynomus.license" version "0.15.0"
-    id "com.matthewprenger.cursegradle" version "1.3.0"
-    id "com.github.breadmoirai.github-release" version "2.2.4"
+    id "com.matthewprenger.cursegradle" version "1.4.0"
+    id "com.github.breadmoirai.github-release" version "2.2.12"
     id "org.jetbrains.kotlin.jvm" version "1.3.72"
 }
 
 apply plugin: 'net.minecraftforge.gradle'
-apply plugin: 'org.ajoberstar.grgit'
-apply plugin: 'maven-publish'
-apply plugin: 'maven'
+apply plugin: 'org.spongepowered.mixin'
 
 version = mod_version
 
 group = "org.squiddev"
 archivesBaseName = "cc-tweaked-${mc_version}"
 
-sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8'
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(8)
+    }
+
+    withSourcesJar()
+    withJavadocJar()
+}
 
 minecraft {
     runs {
@@ -79,6 +90,10 @@ minecraft {
         testServer {
             workingDirectory project.file('test-files/server')
             parent runs.server
+            properties 'mixin.env.disableRefMap': 'true'
+
+            arg "-mixin.config=cctest.mixin.json"
+            arg "--nogui"
 
             mods {
                 cctest {
@@ -88,11 +103,15 @@ minecraft {
         }
     }
 
-    mappings channel: 'official', version: project.mc_version
+    mappings channel: 'official', version: mc_version
 
     accessTransformer file('src/main/resources/META-INF/accesstransformer.cfg')
 }
 
+mixin {
+    add sourceSets.test, "cctest.refmap.json"
+}
+
 sourceSets {
     main.resources {
         srcDir 'src/generated/resources'
@@ -110,7 +129,6 @@ repositories {
 configurations {
     shade
     compile.extendsFrom shade
-    deployerJars
     cctJavadoc
 }
 
@@ -119,15 +137,12 @@ dependencies {
 
     minecraft "net.minecraftforge:forge:${mc_version}-${forge_version}"
 
-    compileOnly fg.deobf("mezz.jei:jei-1.15.2:6.0.0.3:api")
-    compileOnly fg.deobf("com.blamejared.crafttweaker:CraftTweaker-1.15.2:6.0.0.9")
+    compileOnly fg.deobf("mezz.jei:jei-1.16.4:7.6.0.58:api")
+    compileOnly fg.deobf("com.blamejared.crafttweaker:CraftTweaker-1.16.4:7.0.0.63")
 
-    runtimeOnly fg.deobf("mezz.jei:jei-1.15.2:6.0.0.3")
+    runtimeOnly fg.deobf("mezz.jei:jei-1.16.4:7.6.0.58")
 
-    compileOnly 'com.google.auto.service:auto-service:1.0-rc7'
-    annotationProcessor 'com.google.auto.service:auto-service:1.0-rc7'
-
-    shade 'org.squiddev:Cobalt:0.5.1-SNAPSHOT'
+    shade 'org.squiddev:Cobalt:0.5.2-SNAPSHOT'
 
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.7.0'
     testImplementation 'org.junit.jupiter:junit-jupiter-params:5.7.0'
@@ -136,10 +151,9 @@ dependencies {
     testImplementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72'
     testImplementation 'org.jetbrains.kotlin:kotlin-reflect:1.3.72'
     testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.8'
+    testAnnotationProcessor 'org.spongepowered:mixin:0.8.2:processor'
 
-    deployerJars "org.apache.maven.wagon:wagon-ssh:3.0.0"
-
-    cctJavadoc 'cc.tweaked:cct-javadoc:1.3.0'
+    cctJavadoc 'cc.tweaked:cct-javadoc:1.4.0'
 }
 
 // Compile tasks
@@ -158,17 +172,14 @@ task luaJavadoc(type: Javadoc) {
 
     options.docletpath = configurations.cctJavadoc.files as List
     options.doclet = "cc.tweaked.javadoc.LuaDoclet"
+    options.noTimestamp = false
 
-    // Attempt to run under Java 11 (any Java >= 9 will work though).
-    if(System.getProperty("java.version").startsWith("1.")
-        && (System.getenv("JAVA_HOME_11_X64") != null || project.hasProperty("java11Home"))) {
-        executable = "${System.getenv("JAVA_HOME_11_X64") ?: project.property("java11Home")}/bin/javadoc"
+    javadocTool = javaToolchains.javadocToolFor {
+        languageVersion = JavaLanguageVersion.of(11)
     }
 }
 
 jar {
-    dependsOn javadoc
-
     manifest {
         attributes(["Specification-Title": "computercraft",
                     "Specification-Vendor": "SquidDev",
@@ -179,10 +190,6 @@ jar {
                     "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ")])
     }
 
-    from (sourceSets.main.allSource) {
-        include "dan200/computercraft/api/**/*.java"
-    }
-
     from configurations.shade.collect { it.isDirectory() ? it : zipTree(it) }
 }
 
@@ -200,7 +207,6 @@ import com.google.gson.GsonBuilder
 import com.google.gson.JsonElement
 import com.hierynomus.gradle.license.tasks.LicenseCheck
 import com.hierynomus.gradle.license.tasks.LicenseFormat
-import org.ajoberstar.grgit.Grgit
 import proguard.gradle.ProGuardTask
 
 task proguard(type: ProGuardTask, dependsOn: jar) {
@@ -253,16 +259,15 @@ processResources {
     def hash = 'none'
     Set<String> contributors = []
     try {
-        def grgit = Grgit.open(dir: '.')
-        hash = grgit.head().id
+        hash = ["git", "-C", projectDir, "rev-parse", "HEAD"].execute().text.trim()
 
         def blacklist = ['GitHub', 'dan200', 'Daniel Ratcliffe']
-        grgit.log().each {
-            if (!blacklist.contains(it.author.name)) contributors.add(it.author.name)
-            if (!blacklist.contains(it.committer.name)) contributors.add(it.committer.name)
+        ["git", "-C", projectDir, "log", "--format=tformat:%an%n%cn"].execute().text.split('\n').each {
+            if (!blacklist.contains(it)) contributors.add(it)
         }
-    } catch(Exception ignored) { }
-
+    } catch(Exception e) {
+        e.printStackTrace()
+    }
     inputs.property "commithash", hash
 
     from(sourceSets.main.resources.srcDirs) {
@@ -483,8 +488,8 @@ tasks.register('jacocoTestInGameReport', JacocoReport.class).configure {
     it.dependsOn('testInGame')
 
     it.executionData(new File(buildDir, 'jacoco/testInGame.exec'))
-    it.setSourceDirectories(project.files(sourceSets.main.allJava.srcDirs))
-    it.setClassDirectories(project.files(new File(buildDir, 'jacocoClassDump/testInGame')))
+    it.sourceDirectories.from(sourceSets.main.allJava.srcDirs)
+    it.classDirectories.from(new File(buildDir, 'jacocoClassDump/testInGame'))
 
     it.reports {
         xml.enabled true
@@ -546,56 +551,56 @@ curseforge {
         relations {
             incompatible "computercraft"
         }
+
+        addGameVersion '1.16.4'
+        addGameVersion '1.16.5'
     }
 }
 
+tasks.withType(GenerateModuleMetadata) {
+    // We can't generate metadata as that includes Forge as a dependency.
+    enabled = false
+}
+
 publishing {
     publications {
-        mavenJava(MavenPublication) {
+        maven(MavenPublication) {
             from components.java
-            // artifact sourceJar
+
+            pom {
+                name = 'CC: Tweaked'
+                description = 'CC: Tweaked is a fork of ComputerCraft, adding programmable computers, turtles and more to Minecraft.'
+                url = 'https://github.com/SquidDev-CC/CC-Tweaked'
+
+                scm {
+                    url = 'https://github.com/SquidDev-CC/CC-Tweaked.git'
+                }
+
+                issueManagement {
+                    system = 'github'
+                    url = 'https://github.com/SquidDev-CC/CC-Tweaked/issues'
+                }
+
+                licenses {
+                    license {
+                        name = 'ComputerCraft Public License, Version 1.0'
+                        url = 'https://github.com/SquidDev-CC/CC-Tweaked/blob/mc-1.15.x/LICENSE'
+                    }
+                }
+
+                withXml { asNode().remove(asNode().get("dependencies")) }
+            }
         }
     }
-}
 
-uploadArchives {
     repositories {
-        if(project.hasProperty('mavenUploadUrl')) {
-            mavenDeployer {
-                configuration = configurations.deployerJars
-
-                repository(url: project.property('mavenUploadUrl')) {
-                    authentication(
-                        userName: project.property('mavenUploadUser'),
-                        privateKey: project.property('mavenUploadKey'))
-                }
-
-                pom.project {
-                    name 'CC: Tweaked'
-                    packaging 'jar'
-                    description 'CC: Tweaked is a fork of ComputerCraft, adding programmable computers, turtles and more to Minecraft.'
-                    url 'https://github.com/SquidDev-CC/CC-Tweaked'
-
-                    scm {
-                        url 'https://github.com/SquidDev-CC/CC-Tweaked.git'
-                    }
-
-                    issueManagement {
-                        system 'github'
-                        url 'https://github.com/SquidDev-CC/CC-Tweaked/issues'
-                    }
-
-                    licenses {
-                        license {
-                            name 'ComputerCraft Public License, Version 1.0'
-                            url 'https://github.com/SquidDev-CC/CC-Tweaked/blob/master/LICENSE'
-                            distribution 'repo'
-                        }
-                    }
-                }
-
-                pom.whenConfigured { pom ->
-                    pom.dependencies.clear()
+        if (project.hasProperty("mavenUser")) {
+            maven {
+                name = "SquidDev"
+                url = "https://squiddev.cc/maven"
+                credentials {
+                    username = project.property("mavenUser") as String
+                    password = project.property("mavenPass") as String
                 }
             }
         }
@@ -606,22 +611,27 @@ githubRelease {
     token project.hasProperty('githubApiKey') ? project.githubApiKey : ''
     owner 'SquidDev-CC'
     repo 'CC-Tweaked'
-    try {
-        targetCommitish = Grgit.open(dir: '.').branch.current().name
-    } catch(Exception ignored) { }
+    targetCommitish.set(project.provider({
+        try {
+            return ["git", "-C", projectDir, "rev-parse", "--abbrev-ref", "HEAD"].execute().text.trim()
+        } catch (Exception e) {
+            e.printStackTrace()
+        }
+        return "master"
+    }))
 
     tagName "v${mc_version}-${mod_version}"
     releaseName "[${mc_version}] ${mod_version}"
-    body {
+    body.set(project.provider({
         "## " + new File(projectDir, "src/main/resources/data/computercraft/lua/rom/help/whatsnew.txt")
             .readLines()
             .takeWhile { it != 'Type "help changelog" to see the full version history.' }
             .join("\n").trim()
-    }
+    }))
     prerelease false
 }
 
-def uploadTasks = ["uploadArchives", "curseforge", "githubRelease"]
+def uploadTasks = ["publish", "curseforge", "githubRelease"]
 uploadTasks.forEach { tasks.getByName(it).dependsOn checkRelease }
 
 task uploadAll(dependsOn: uploadTasks) {

config/idea/codeInspectionSettings.xml

@@ -2488,4 +2488,4 @@
       </option>
     </inspection_tool>
   </profile>
-</component>
+</component>

config/idea/codeStyleSettings.xml

@@ -58,4 +58,4 @@
       <option name="CONTINUATION_INDENT_SIZE" value="4" />
     </indentOptions>
   </codeStyleSettings>
-</code_scheme>
+</code_scheme>

config/pre-commit/config.yml

@@ -0,0 +1,55 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v3.2.0
+  hooks:
+  - id: trailing-whitespace
+  - id: end-of-file-fixer
+  - id: check-merge-conflict
+
+  # Quick syntax checkers
+  - id: check-xml
+  - id: check-yaml
+  - id: check-toml
+  - id: check-json
+    exclude: "tsconfig\\.json$"
+
+- repo: https://github.com/editorconfig-checker/editorconfig-checker.python
+  rev: 2.3.5
+  hooks:
+  - id: editorconfig-checker
+    args: ['-disable-indentation']
+    exclude: "^(.*\\.(bat)|LICENSE)$"
+
+- repo: local
+  hooks:
+  - id: checkstyle
+    name: Check Java codestyle
+    files: ".*\\.java$"
+    language: system
+    entry: ./gradlew checkstyleMain checkstyleTest
+    pass_filenames: false
+    require_serial: true
+  - id: license
+    name: Check Java license headers
+    files: ".*\\.java$"
+    language: system
+    entry: ./gradlew licenseFormat
+    pass_filenames: false
+    require_serial: true
+  - id: illuaminate
+    name: Check Lua code
+    files: ".*\\.(lua|java|md)"
+    language: script
+    entry: config/pre-commit/illuaminate-lint.sh
+    pass_filenames: false
+    require_serial: true
+
+exclude: |
+  (?x)^(
+    src/generated|
+    src/test/resources/test-rom/data/json-parsing/|
+    src/test/server-files/|
+    config/idea/
+  )

config/pre-commit/illuaminate-lint.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env sh
+set -e
+
+test -d bin || mkdir bin
+test -f bin/illuaminate || curl -s -obin/illuaminate https://squiddev.cc/illuaminate/linux-x86-64/illuaminate
+chmod +x bin/illuaminate
+
+if [ -n ${GITHUB_ACTIONS+x} ]; then
+    # Register a problem matcher (see https://github.com/actions/toolkit/blob/master/docs/problem-matchers.md)
+    # for illuaminate.
+    echo "::add-matcher::.github/matchers/illuaminate.json"
+    trap 'echo "::remove-matcher owner=illuaminate::"' EXIT
+fi
+
+./gradlew luaJavadoc
+bin/illuaminate lint

doc/events/alarm.md

@@ -0,0 +1,21 @@
+---
+module: [kind=event] alarm
+see: os.setAlarm To start an alarm.
+---
+
+The @{timer} 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.
+
+## Example
+Starts a timer and then prints its ID:
+```lua
+local alarmID = os.setAlarm(os.time() + 0.05)
+local event, id
+repeat
+    event, id = os.pullEvent("alarm")
+until id == alarmID
+print("Alarm with ID " .. id .. " was fired")
+```

doc/events/computer_command.md

@@ -0,0 +1,18 @@
+---
+module: [kind=event] computer_command
+---
+
+The @{computer_command} event is fired when the `/computercraft queue` command is run for the current computer.
+
+## Return Values
+1. @{string}: The event name.
+... @{string}: The arguments passed to the command.
+
+## Example
+Prints the contents of messages sent:
+```lua
+while true do
+  local event = {os.pullEvent("computer_command")}
+  print("Received message:", table.unpack(event, 2))
+end
+```

doc/events/disk.md

@@ -0,0 +1,19 @@
+---
+module: [kind=event] disk
+see: disk_eject For the event sent when a disk is removed.
+---
+
+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.
+
+## Example
+Prints a message when a disk is inserted:
+```lua
+while true do
+  local event, side = os.pullEvent("disk")
+  print("Inserted a disk on side " .. side)
+end
+```

doc/events/disk_eject.md

@@ -0,0 +1,19 @@
+---
+module: [kind=event] disk_eject
+see: disk For the event sent when a disk is inserted.
+---
+
+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.
+
+## Example
+Prints a message when a disk is removed:
+```lua
+while true do
+  local event, side = os.pullEvent("disk_eject")
+  print("Removed a disk on side " .. side)
+end
+```

doc/events/http_check.md

@@ -0,0 +1,14 @@
+---
+module: [kind=event] http_check
+see: http.checkURLAsync To check a URL asynchronously.
+---
+
+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}.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL requested to be checked.
+3. @{boolean}: Whether the check succeeded.
+4. @{string|nil}: If the check failed, a reason explaining why the check failed.

doc/events/http_failure.md

@@ -0,0 +1,39 @@
+---
+module: [kind=event] http_failure
+see: http.request To send an HTTP request.
+---
+
+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}.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL of the site requested.
+3. @{string}: An error describing the failure.
+4. @{http.Response|nil}: A response handle if the connection succeeded, but the server's response indicated failure.
+
+## Example
+Prints an error why the website cannot be contacted:
+```lua
+local myURL = "https://does.not.exist.tweaked.cc"
+http.request(myURL)
+local event, url, err
+repeat
+    event, url, err = os.pullEvent("http_failure")
+until url == myURL
+print("The URL " .. url .. " could not be reached: " .. err)
+```
+
+Prints the contents of a webpage that does not exist:
+```lua
+local myURL = "https://tweaked.cc/this/does/not/exist"
+http.request(myURL)
+local event, url, err, handle
+repeat
+    event, url, err, handle = os.pullEvent("http_failure")
+until url == myURL
+print("The URL " .. url .. " could not be reached: " .. err)
+print(handle.getResponseCode())
+handle.close()
+```

doc/events/http_success.md

@@ -0,0 +1,27 @@
+---
+module: [kind=event] http_success
+see: http.request To make an HTTP request.
+---
+
+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}.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL of the site requested.
+3. @{http.Response}: The handle for the response text.
+
+## Example
+Prints the content of a website (this may fail if the request fails):
+```lua
+local myURL = "https://tweaked.cc/"
+http.request(myURL)
+local event, url, handle
+repeat
+    event, url, handle = os.pullEvent("http_success")
+until url == myURL
+print("Contents of " .. url .. ":")
+print(handle.readAll())
+handle.close()
+```

doc/events/key.md

@@ -11,16 +11,16 @@ If the button pressed represented a printable character, then the @{key} event w
 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.
 
 ```lua
 while true do
-  local event, key, is_held = os.pullEvent("key")  
+  local event, key, is_held = os.pullEvent("key")
   print(("%s held=%s"):format(keys.getName(key), is_held))
 end
 ```

doc/events/modem_message.md

@@ -0,0 +1,22 @@
+---
+module: [kind=event] modem_message
+---
+
+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. @{number}: The distance between the sender and the receiver, in blocks (decimal).
+
+## Example
+Prints a message when one is sent:
+```lua
+while true do
+  local event, side, channel, replyChannel, message, distance = os.pullEvent("modem_message")
+  print(("Message received on side %s on channel %d (reply to %d) from %f blocks away with message %s"):format(side, channel, replyChannel, distance, tostring(message)))
+end
+```

doc/events/monitor_resize.md

@@ -0,0 +1,18 @@
+---
+module: [kind=event] monitor_resize
+---
+
+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 resized.
+
+## Example
+Prints a message when a monitor is resized:
+```lua
+while true do
+  local event, side = os.pullEvent("monitor_resize")
+  print("The monitor on side " .. side .. " was resized.")
+end
+```

doc/events/monitor_touch.md

@@ -0,0 +1,20 @@
+---
+module: [kind=event] monitor_touch
+---
+
+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.
+
+## Example
+Prints a message when a monitor is touched:
+```lua
+while true do
+  local event, side, x, y = os.pullEvent("monitor_touch")
+  print("The monitor on side " .. side .. " was touched at (" .. x .. ", " .. y .. ")")
+end
+```

doc/events/mouse_drag.md

@@ -20,5 +20,3 @@ while true do
   print(("The mouse button %s was dragged at %d, %d"):format(button, x, y))
 end
 ```
-
-

doc/events/mouse_up.md

@@ -19,6 +19,3 @@ while true do
   print(("The mouse button %s was released at %d, %d"):format(button, x, y))
 end
 ```
-
-[`string`]: string
-[`number`]: number

doc/events/paste.md

@@ -0,0 +1,18 @@
+---
+module: [kind=event] paste
+---
+
+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.
+
+## Example
+Prints pasted text:
+```lua
+while true do
+  local event, text = os.pullEvent("paste")
+  print('"' .. text .. '" was pasted')
+end
+```

doc/events/peripheral.md

@@ -0,0 +1,19 @@
+---
+module: [kind=event] peripheral
+see: peripheral_detach For the event fired when a peripheral is detached.
+---
+
+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.
+
+## Example
+Prints a message when a peripheral is attached:
+```lua
+while true do
+  local event, side = os.pullEvent("peripheral")
+  print("A peripheral was attached on side " .. side)
+end
+```

doc/events/peripheral_detach.md

@@ -0,0 +1,19 @@
+---
+module: [kind=event] peripheral_detach
+see: peripheral For the event fired when a peripheral is attached.
+---
+
+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.
+
+## Example
+Prints a message when a peripheral is detached:
+```lua
+while true do
+  local event, side = os.pullEvent("peripheral_detach")
+  print("A peripheral was detached on side " .. side)
+end
+```

doc/events/rednet_message.md

@@ -0,0 +1,30 @@
+---
+module: [kind=event] rednet_message
+see: modem_message For raw modem messages sent outside of Rednet.
+see: rednet.receive To wait for a Rednet message with an optional timeout and protocol filter.
+---
+
+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.
+
+@{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. @{string|nil}: The protocol of the message, if provided.
+
+## Example
+Prints a message when one is sent:
+```lua
+while true do
+  local event, sender, message, protocol = os.pullEvent("rednet_message")
+  if protocol ~= nil then
+    print("Received message from " .. sender .. " with protocol " .. protocol .. " and message " .. tostring(message))
+  else
+    print("Received message from " .. sender .. " with message " .. tostring(message))
+  end
+end
+```

doc/events/redstone.md

@@ -0,0 +1,14 @@
+---
+module: [kind=event] redstone
+---
+
+The @{redstone} event is fired whenever any redstone inputs on the computer change.
+
+## Example
+Prints a message when a redstone input changes:
+```lua
+while true do
+  os.pullEvent("redstone")
+  print("A redstone input has changed!")
+end
+```

doc/events/task_complete.md

@@ -0,0 +1,28 @@
+---
+module: [kind=event] task_complete
+see: commands.execAsync To run a command which fires a task_complete event.
+---
+
+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.)
+...: Any parameters returned from the command.
+
+## Example
+Prints the results of an asynchronous command:
+```lua
+local taskID = commands.execAsync("say Hello")
+local event
+repeat
+    event = {os.pullEvent("task_complete")}
+until event[2] == taskID
+if event[3] == true then
+  print("Task " .. event[2] .. " succeeded:", table.unpack(event, 4))
+else
+  print("Task " .. event[2] .. " failed: " .. event[4])
+end
+```

doc/events/term_resize.md

@@ -0,0 +1,15 @@
+---
+module: [kind=event] term_resize
+---
+
+The @{term_resize} event is fired when the main terminal is resized, mainly when a new tab is opened or closed in @{multishell}.
+
+## Example
+Prints :
+```lua
+while true do
+  os.pullEvent("term_resize")
+  local w, h = term.getSize()
+  print("The term was resized to (" .. w .. ", " .. h .. ")")
+end
+```

doc/events/terminate.md

@@ -0,0 +1,25 @@
+---
+module: [kind=event] terminate
+---
+
+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.
+
+@{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}.
+
+## Example
+Prints a message when Ctrl-T is held:
+```lua
+while true do
+  local event = os.pullEventRaw("terminate")
+  if event == "terminate" then print("Terminate requested!") end
+end
+```
+
+Exits when Ctrl-T is held:
+```lua
+while true do
+  os.pullEvent()
+end
+```

doc/events/timer.md

@@ -0,0 +1,21 @@
+---
+module: [kind=event] timer
+see: os.startTimer To start a timer.
+---
+
+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.
+
+## Example
+Starts a timer and then prints its ID:
+```lua
+local timerID = os.startTimer(2)
+local event, id
+repeat
+    event, id = os.pullEvent("timer")
+until id == timerID
+print("Timer with ID " .. id .. " was fired")
+```

doc/events/turtle_inventory.md

@@ -0,0 +1,14 @@
+---
+module: [kind=event] turtle_inventory
+---
+
+The @{turtle_inventory} event is fired when a turtle's inventory is changed.
+
+## Example
+Prints a message when the inventory is changed:
+```lua
+while true do
+  os.pullEvent("turtle_inventory")
+  print("The inventory was changed.")
+end
+```

doc/events/websocket_closed.md

@@ -0,0 +1,21 @@
+---
+module: [kind=event] websocket_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.
+
+## Example
+Prints a message when a WebSocket is closed (this may take a minute):
+```lua
+local myURL = "wss://example.tweaked.cc/echo"
+local ws = http.websocket(myURL)
+local event, url
+repeat
+    event, url = os.pullEvent("websocket_closed")
+until url == myURL
+print("The WebSocket at " .. url .. " was closed.")
+```

doc/events/websocket_failure.md

@@ -0,0 +1,25 @@
+---
+module: [kind=event] websocket_failure
+see: http.websocketAsync To send an HTTP request.
+---
+
+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}.
+
+## Return Values
+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:
+```lua
+local myURL = "wss://example.tweaked.cc/not-a-websocket"
+http.websocketAsync(myURL)
+local event, url, err
+repeat
+    event, url, err = os.pullEvent("websocket_failure")
+until url == myURL
+print("The URL " .. url .. " could not be reached: " .. err)
+```

doc/events/websocket_message.md

@@ -0,0 +1,26 @@
+---
+module: [kind=event] websocket_message
+---
+
+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.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL of the WebSocket.
+3. @{string}: The contents of the message.
+
+## Example
+Prints a message sent by a WebSocket:
+```lua
+local myURL = "wss://example.tweaked.cc/echo"
+local ws = http.websocket(myURL)
+ws.send("Hello!")
+local event, url, message
+repeat
+    event, url, message = os.pullEvent("websocket_message")
+until url == myURL
+print("Received message from " .. url .. " with contents " .. message)
+ws.close()
+```

doc/events/websocket_success.md

@@ -0,0 +1,28 @@
+---
+module: [kind=event] websocket_success
+see: http.websocketAsync To open a WebSocket asynchronously.
+---
+
+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}.
+
+## Return Values
+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):
+```lua
+local myURL = "wss://example.tweaked.cc/echo"
+http.websocketAsync(myURL)
+local event, url, handle
+repeat
+    event, url, handle = os.pullEvent("websocket_success")
+until url == myURL
+print("Connected to " .. url)
+handle.send("Hello!")
+print(handle.receive())
+handle.close()
+```

doc/stub/http.lua

@@ -58,10 +58,10 @@ function request(...) end
 -- @treturn string A message detailing why the request failed.
 -- @treturn Response|nil The failing http response, if available.
 --
--- @usage Make a request to [example.computercraft.cc](https://example.computercraft.cc),
+-- @usage Make a request to [example.tweaked.cc](https://example.tweaked.cc),
 -- and print the returned page.
 -- ```lua
--- local request = http.get("https://example.computercraft.cc")
+-- local request = http.get("https://example.tweaked.cc")
 -- print(request.readAll())
 -- -- => HTTP is working!
 -- request.close()
@@ -123,7 +123,7 @@ function checkURLAsync(url) end
 --
 -- @usage
 -- ```lua
--- print(http.checkURL("https://example.computercraft.cc/"))
+-- print(http.checkURL("https://example.tweaked.cc/"))
 -- -- => true
 -- print(http.checkURL("http://localhost/"))
 -- -- => false Domain not permitted

doc/stub/turtle.lua

@@ -1 +1,13 @@
+--[[- Craft a recipe based on the turtle's inventory.
+
+The turtle's inventory should set up like a crafting grid. For instance, to
+craft sticks, slots 1 and 5 should contain sticks. _All_ other slots should be
+empty, including those outside the crafting "grid".
+
+@tparam[opt=64] number limit The maximum number of crafting steps to run.
+@throws When limit is less than 1 or greater than 64.
+@treturn[1] true If crafting succeeds.
+@treturn[2] false If crafting fails.
+@treturn string A string describing why crafting failed.
+]]
 function craft(limit) end

gradle.properties

@@ -1,6 +1,6 @@
 # Mod properties
-mod_version=1.95.2
+mod_version=1.96.0
 
 # Minecraft properties (update mods.toml when changing)
-mc_version=1.15.2
-forge_version=31.1.41
+mc_version=1.16.4
+forge_version=35.1.16

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,5 +1,21 @@
 #!/usr/bin/env sh
 
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
 ##############################################################################
 ##
 ##  Gradle start up script for UN*X
@@ -28,7 +44,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
@@ -66,6 +82,7 @@ esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
+
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
@@ -109,10 +126,11 @@ if $darwin; then
     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
 fi
 
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
     JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath
@@ -138,19 +156,19 @@ if $cygwin ; then
         else
             eval `echo args$i`="\"$arg\""
         fi
-        i=$((i+1))
+        i=`expr $i + 1`
     done
     case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
     esac
 fi
 
@@ -159,14 +177,9 @@ save () {
     for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
     echo " "
 }
-APP_ARGS=$(save "$@")
+APP_ARGS=`save "$@"`
 
 # Collect all arguments for the java command, following the shell quoting and substitution rules
 eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
 
-# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
-if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
-  cd "$(dirname "$0")"
-fi
-
 exec "$JAVACMD" "$@"

gradlew.bat

@@ -1,3 +1,19 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
 @if "%DEBUG%" == "" @echo off
 @rem ##########################################################################
 @rem
@@ -13,15 +29,18 @@ if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if "%ERRORLEVEL%" == "0" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -35,7 +54,7 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
@@ -45,28 +64,14 @@ echo location of your Java installation.
 
 goto fail
 
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
 :execute
 @rem Setup the command line
 
 set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
+
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
 
 :end
 @rem End local scope for the variables with windows NT shell

illuaminate.sexp

@@ -88,27 +88,16 @@
 
 ;; Suppress warnings for currently undocumented modules.
 (at
-  (; Java APIs
-   /doc/stub/http.lua
-   /doc/stub/os.lua
-   /doc/stub/turtle.lua
-   /doc/stub/global.lua
-   ; Java generated APIs
-   /build/docs/luaJavadoc/turtle.lua
-   ; Peripherals
-   /build/docs/luaJavadoc/drive.lua
-   /build/docs/luaJavadoc/speaker.lua
-   /build/docs/luaJavadoc/printer.lua
-   ; Generic peripherals
-   /build/docs/luaJavadoc/fluid_storage.lua
-   ; Lua APIs
+  (; Lua APIs
    /src/main/resources/*/computercraft/lua/rom/apis/io.lua
    /src/main/resources/*/computercraft/lua/rom/apis/window.lua)
 
   (linters -doc:undocumented -doc:undocumented-arg -doc:undocumented-return))
 
-;; Suppress warnings for the BIOS using its own deprecated members for now.
-(at /src/main/resources/*/computercraft/lua/bios.lua
+;; Suppress warnings for various APIs using its own deprecated members.
+(at
+  (/src/main/resources/*/computercraft/lua/bios.lua
+   /src/main/resources/*/computercraft/lua/rom/apis/turtle/turtle.lua)
   (linters -var:deprecated))
 
 (at /src/test/resources/test-rom

src/generated/resources/data/minecraft/tags/items/piglin_loved.json

@@ -0,0 +1,10 @@
+{
+  "replace": false,
+  "values": [
+    "computercraft:computer_advanced",
+    "computercraft:turtle_advanced",
+    "computercraft:wireless_modem_advanced",
+    "computercraft:pocket_computer_advanced",
+    "computercraft:monitor_advanced"
+  ]
+}

src/main/java/dan200/computercraft/ComputerCraft.java

@@ -8,7 +8,6 @@ package dan200.computercraft;
 import dan200.computercraft.api.turtle.event.TurtleAction;
 import dan200.computercraft.core.apis.http.options.Action;
 import dan200.computercraft.core.apis.http.options.AddressRule;
-import dan200.computercraft.core.asm.GenericSource;
 import dan200.computercraft.shared.Config;
 import dan200.computercraft.shared.Registry;
 import dan200.computercraft.shared.computer.core.ClientComputerRegistry;
@@ -17,7 +16,6 @@ import dan200.computercraft.shared.peripheral.monitor.MonitorRenderer;
 import dan200.computercraft.shared.pocket.peripherals.PocketModem;
 import dan200.computercraft.shared.pocket.peripherals.PocketSpeaker;
 import dan200.computercraft.shared.turtle.upgrades.*;
-import dan200.computercraft.shared.util.ServiceUtil;
 import net.minecraftforge.fml.common.Mod;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -117,6 +115,5 @@ public final class ComputerCraft
     {
         Config.setup();
         Registry.setup();
-        GenericSource.setup( () -> ServiceUtil.loadServicesForge( GenericSource.class ) );
     }
 }

src/main/java/dan200/computercraft/ComputerCraftAPIImpl.java

@@ -8,6 +8,7 @@ package dan200.computercraft;
 import dan200.computercraft.api.ComputerCraftAPI.IComputerCraftAPI;
 import dan200.computercraft.api.filesystem.IMount;
 import dan200.computercraft.api.filesystem.IWritableMount;
+import dan200.computercraft.api.lua.GenericSource;
 import dan200.computercraft.api.lua.ILuaAPIFactory;
 import dan200.computercraft.api.media.IMediaProvider;
 import dan200.computercraft.api.network.IPacketNetwork;
@@ -18,9 +19,11 @@ import dan200.computercraft.api.pocket.IPocketUpgrade;
 import dan200.computercraft.api.redstone.IBundledRedstoneProvider;
 import dan200.computercraft.api.turtle.ITurtleUpgrade;
 import dan200.computercraft.core.apis.ApiFactories;
+import dan200.computercraft.core.asm.GenericMethod;
 import dan200.computercraft.core.filesystem.FileMount;
 import dan200.computercraft.core.filesystem.ResourceMount;
 import dan200.computercraft.shared.*;
+import dan200.computercraft.shared.peripheral.generic.GenericPeripheralProvider;
 import dan200.computercraft.shared.peripheral.modem.wireless.WirelessNetwork;
 import dan200.computercraft.shared.util.IDAssigner;
 import dan200.computercraft.shared.wired.WiredNode;
@@ -31,6 +34,7 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.IBlockReader;
 import net.minecraft.world.World;
+import net.minecraftforge.common.capabilities.Capability;
 import net.minecraftforge.common.util.LazyOptional;
 import net.minecraftforge.fml.ModList;
 import net.minecraftforge.fml.server.ServerLifecycleHooks;
@@ -54,7 +58,7 @@ public final class ComputerCraftAPIImpl implements IComputerCraftAPI
 
     public static InputStream getResourceFile( String domain, String subPath )
     {
-        IReloadableResourceManager manager = ServerLifecycleHooks.getCurrentServer().getResources();
+        IReloadableResourceManager manager = (IReloadableResourceManager) ServerLifecycleHooks.getCurrentServer().getDataPackRegistries().getResourceManager();
         try
         {
             return manager.getResource( new ResourceLocation( domain, subPath ) ).getInputStream();
@@ -97,7 +101,7 @@ public final class ComputerCraftAPIImpl implements IComputerCraftAPI
     @Override
     public IMount createResourceMount( @Nonnull String domain, @Nonnull String subPath )
     {
-        IReloadableResourceManager manager = ServerLifecycleHooks.getCurrentServer().getResources();
+        IReloadableResourceManager manager = (IReloadableResourceManager) ServerLifecycleHooks.getCurrentServer().getDataPackRegistries().getResourceManager();
         ResourceMount mount = ResourceMount.get( domain, subPath, manager );
         return mount.exists( "" ) ? mount : null;
     }
@@ -108,6 +112,18 @@ public final class ComputerCraftAPIImpl implements IComputerCraftAPI
         Peripherals.register( provider );
     }
 
+    @Override
+    public void registerGenericSource( @Nonnull GenericSource source )
+    {
+        GenericMethod.register( source );
+    }
+
+    @Override
+    public void registerGenericCapability( @Nonnull Capability<?> capability )
+    {
+        GenericPeripheralProvider.addCapability( capability );
+    }
+
     @Override
     public void registerTurtleUpgrade( @Nonnull ITurtleUpgrade upgrade )
     {

src/main/java/dan200/computercraft/api/ComputerCraftAPI.java

@@ -7,6 +7,7 @@ package dan200.computercraft.api;
 
 import dan200.computercraft.api.filesystem.IMount;
 import dan200.computercraft.api.filesystem.IWritableMount;
+import dan200.computercraft.api.lua.GenericSource;
 import dan200.computercraft.api.lua.ILuaAPIFactory;
 import dan200.computercraft.api.media.IMedia;
 import dan200.computercraft.api.media.IMediaProvider;
@@ -23,6 +24,7 @@ import net.minecraft.util.Direction;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.IBlockReader;
 import net.minecraft.world.World;
+import net.minecraftforge.common.capabilities.Capability;
 import net.minecraftforge.common.util.LazyOptional;
 
 import javax.annotation.Nonnull;
@@ -98,7 +100,9 @@ public final class ComputerCraftAPI
      * resource folder onto a computer's file system.
      *
      * The files in this mount will be a combination of files in all mod jar, and data packs that contain
-     * resources with the same domain and path.
+     * resources with the same domain and path. For instance, ComputerCraft's resources are stored in
+     * "/data/computercraft/lua/rom". We construct a mount for that with
+     * {@code createResourceMount("computercraft", "lua/rom")}.
      *
      * @param domain  The domain under which to look for resources. eg: "mymod".
      * @param subPath The subPath under which to look for resources. eg: "lua/myfiles".
@@ -114,7 +118,7 @@ public final class ComputerCraftAPI
     }
 
     /**
-     * Registers a peripheral provider to convert blocks into {@link IPeripheral} implementations.
+     * rers a peripheral provider to convert blocks into {@link IPeripheral} implementations.
      *
      * @param provider The peripheral provider to register.
      * @see IPeripheral
@@ -125,6 +129,28 @@ public final class ComputerCraftAPI
         getInstance().registerPeripheralProvider( provider );
     }
 
+    /**
+     * Registers a method source for generic peripherals.
+     *
+     * @param source The method source to register.
+     * @see GenericSource
+     */
+    public static void registerGenericSource( @Nonnull GenericSource source )
+    {
+        getInstance().registerGenericSource( source );
+    }
+
+    /**
+     * Registers a capability that can be used by generic peripherals.
+     *
+     * @param capability The capability to register.
+     * @see GenericSource
+     */
+    public static void registerGenericCapability( @Nonnull Capability<?> capability )
+    {
+        getInstance().registerGenericCapability( capability );
+    }
+
     /**
      * Registers a new turtle turtle for use in ComputerCraft. After calling this,
      * users should be able to craft Turtles with your new turtle. It is recommended to call
@@ -256,6 +282,10 @@ public final class ComputerCraftAPI
 
         void registerPeripheralProvider( @Nonnull IPeripheralProvider provider );
 
+        void registerGenericSource( @Nonnull GenericSource source );
+
+        void registerGenericCapability( @Nonnull Capability<?> capability );
+
         void registerTurtleUpgrade( @Nonnull ITurtleUpgrade upgrade );
 
         void registerBundledRedstoneProvider( @Nonnull IBundledRedstoneProvider provider );

src/main/java/dan200/computercraft/api/client/TransformedModel.java

@@ -6,11 +6,11 @@
 package dan200.computercraft.api.client;
 
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.TransformationMatrix;
 import net.minecraft.client.renderer.model.IBakedModel;
 import net.minecraft.client.renderer.model.ModelManager;
 import net.minecraft.client.renderer.model.ModelResourceLocation;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.math.vector.TransformationMatrix;
 
 import javax.annotation.Nonnull;
 import java.util.Objects;

src/main/java/dan200/computercraft/api/lua/GenericSource.java

@@ -0,0 +1,60 @@
+/*
+ * This file is part of the public ComputerCraft API - http://www.computercraft.info
+ * Copyright Daniel Ratcliffe, 2011-2021. This API may be redistributed unmodified and in full only.
+ * For help using the API, and posting your mods, visit the forums at computercraft.info.
+ */
+package dan200.computercraft.api.lua;
+
+import dan200.computercraft.api.ComputerCraftAPI;
+import dan200.computercraft.api.peripheral.IPeripheral;
+import dan200.computercraft.api.peripheral.IPeripheralProvider;
+import dan200.computercraft.core.asm.LuaMethod;
+import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.common.capabilities.Capability;
+import net.minecraftforge.items.IItemHandler;
+
+import javax.annotation.Nonnull;
+
+/**
+ * A generic source of {@link LuaMethod} functions.
+ *
+ * Unlike normal objects ({@link IDynamicLuaObject} or {@link IPeripheral}), methods do not target this object but
+ * instead are defined as {@code static} and accept their target as the first parameter. This allows you to inject
+ * methods onto objects you do not own, as well as declaring methods for a specific "trait" (for instance, a
+ * {@link Capability}).
+ *
+ * Currently the "generic peripheral" system is incompatible with normal peripherals. Normal {@link IPeripheralProvider}
+ * or {@link IPeripheral} implementations take priority. Tile entities which use this system are given a peripheral name
+ * determined by their id, rather than any peripheral provider. This will hopefully change in the future, once a suitable
+ * design has been established.
+ *
+ * For example, the main CC: Tweaked mod defines a generic source for inventories, which works on {@link IItemHandler}s:
+ *
+ * <pre>{@code
+ * public class InventoryMethods implements GenericSource {
+ *     \@LuaFunction( mainThread = true )
+ *     public static int size(IItemHandler inventory) {
+ *         return inventory.getSlots();
+ *     }
+ *
+ *     // ...
+ * }
+ * }</pre>
+ *
+ * @see ComputerCraftAPI#registerGenericSource(GenericSource)
+ * @see ComputerCraftAPI#registerGenericCapability(Capability) New capabilities (those not built into Forge) must be
+ * explicitly given to the generic peripheral system, as there is no way to enumerate all capabilities.
+ */
+public interface GenericSource
+{
+    /**
+     * A unique identifier for this generic source.
+     *
+     * This is currently unused, but may be used in the future to allow disabling specific sources. It is recommended
+     * to return an identifier using your mod's ID.
+     *
+     * @return This source's identifier.
+     */
+    @Nonnull
+    ResourceLocation id();
+}

src/main/java/dan200/computercraft/api/network/IPacketReceiver.java

@@ -5,7 +5,7 @@
  */
 package dan200.computercraft.api.network;
 
-import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.world.World;
 
 import javax.annotation.Nonnull;
@@ -29,7 +29,7 @@ public interface IPacketReceiver
      * @return The receiver's position.
      */
     @Nonnull
-    Vec3d getPosition();
+    Vector3d getPosition();
 
     /**
      * Get the maximum distance this receiver can send and receive messages.

src/main/java/dan200/computercraft/api/network/IPacketSender.java

@@ -5,7 +5,7 @@
  */
 package dan200.computercraft.api.network;
 
-import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.world.World;
 
 import javax.annotation.Nonnull;
@@ -29,7 +29,7 @@ public interface IPacketSender
      * @return The sender's position.
      */
     @Nonnull
-    Vec3d getPosition();
+    Vector3d getPosition();
 
     /**
      * Get some sort of identification string for this sender. This does not strictly need to be unique, but you

src/main/java/dan200/computercraft/api/turtle/ITurtleAccess.java

@@ -13,7 +13,7 @@ import net.minecraft.inventory.IInventory;
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.util.Direction;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.world.World;
 import net.minecraftforge.items.IItemHandlerModifiable;
 
@@ -67,7 +67,7 @@ public interface ITurtleAccess
      * @see #getVisualYaw(float)
      */
     @Nonnull
-    Vec3d getVisualPosition( float f );
+    Vector3d getVisualPosition( float f );
 
     /**
      * Returns the yaw the turtle is facing when it is rendered.

src/main/java/dan200/computercraft/client/ClientTableFormatter.java

@@ -12,14 +12,12 @@ import it.unimi.dsi.fastutil.ints.Int2IntOpenHashMap;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.FontRenderer;
 import net.minecraft.client.gui.NewChatGui;
-import net.minecraft.client.gui.RenderComponentsUtil;
 import net.minecraft.util.math.MathHelper;
 import net.minecraft.util.text.ITextComponent;
 import net.minecraft.util.text.TextFormatting;
 import org.apache.commons.lang3.StringUtils;
 
 import javax.annotation.Nullable;
-import java.util.List;
 
 public class ClientTableFormatter implements TableFormatter
 {
@@ -57,7 +55,7 @@ public class ClientTableFormatter implements TableFormatter
     @Override
     public int getWidth( ITextComponent component )
     {
-        return renderer().width( component.getColoredString() );
+        return renderer().width( component );
     }
 
     @Override
@@ -66,10 +64,11 @@ public class ClientTableFormatter implements TableFormatter
         Minecraft mc = Minecraft.getInstance();
         NewChatGui chat = mc.gui.getChat();
 
-        // Trim the text if it goes over the allowed length
-        int maxWidth = MathHelper.floor( chat.getWidth() / chat.getScale() );
-        List<ITextComponent> list = RenderComponentsUtil.wrapComponents( component, maxWidth, mc.font, false, false );
-        if( !list.isEmpty() ) chat.addMessage( list.get( 0 ), id );
+        // TODO: Trim the text if it goes over the allowed length
+        // int maxWidth = MathHelper.floor( chat.getChatWidth() / chat.getScale() );
+        // List<ITextProperties> list = RenderComponentsUtil.wrapComponents( component, maxWidth, mc.fontRenderer );
+        // if( !list.isEmpty() ) chat.printChatMessageWithOptionalDeletion( list.get( 0 ), id );
+        chat.addMessage( component, id );
     }
 
     @Override

src/main/java/dan200/computercraft/client/gui/FixedWidthFontRenderer.java

@@ -13,10 +13,14 @@ import dan200.computercraft.core.terminal.TextBuffer;
 import dan200.computercraft.shared.util.Colour;
 import dan200.computercraft.shared.util.Palette;
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.*;
+import net.minecraft.client.renderer.IRenderTypeBuffer;
+import net.minecraft.client.renderer.RenderState;
+import net.minecraft.client.renderer.RenderType;
 import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
 import net.minecraft.client.renderer.vertex.VertexFormat;
 import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.math.vector.Matrix4f;
+import net.minecraft.util.math.vector.TransformationMatrix;
 import org.lwjgl.opengl.GL11;
 
 import javax.annotation.Nonnull;

src/main/java/dan200/computercraft/client/gui/GuiComputer.java

@@ -5,6 +5,7 @@
  */
 package dan200.computercraft.client.gui;
 
+import com.mojang.blaze3d.matrix.MatrixStack;
 import com.mojang.blaze3d.systems.RenderSystem;
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.client.gui.widgets.WidgetTerminal;
@@ -21,6 +22,8 @@ import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.util.text.ITextComponent;
 import org.lwjgl.glfw.GLFW;
 
+import javax.annotation.Nonnull;
+
 import static dan200.computercraft.client.render.ComputerBorderRenderer.BORDER;
 import static dan200.computercraft.client.render.ComputerBorderRenderer.MARGIN;
 
@@ -120,7 +123,7 @@ public final class GuiComputer<T extends ContainerComputerBase> extends Containe
     }
 
     @Override
-    public void renderBg( float partialTicks, int mouseX, int mouseY )
+    public void renderBg( @Nonnull MatrixStack stack, float partialTicks, int mouseX, int mouseY )
     {
         // Draw terminal
         terminal.draw( terminalWrapper.getX(), terminalWrapper.getY() );
@@ -135,11 +138,10 @@ public final class GuiComputer<T extends ContainerComputerBase> extends Containe
     }
 
     @Override
-    public void render( int mouseX, int mouseY, float partialTicks )
+    public void render( @Nonnull MatrixStack stack, int mouseX, int mouseY, float partialTicks )
     {
-        renderBackground();
-        super.render( mouseX, mouseY, partialTicks );
-        renderTooltip( mouseX, mouseY );
+        super.render( stack, mouseX, mouseY, partialTicks );
+        renderTooltip( stack, mouseX, mouseY );
     }
 
     @Override
@@ -148,4 +150,10 @@ public final class GuiComputer<T extends ContainerComputerBase> extends Containe
         return (getFocused() != null && getFocused().mouseDragged( x, y, button, deltaX, deltaY ))
             || super.mouseDragged( x, y, button, deltaX, deltaY );
     }
+
+    @Override
+    protected void renderLabels( @Nonnull MatrixStack transform, int mouseX, int mouseY )
+    {
+        // Skip rendering labels.
+    }
 }

src/main/java/dan200/computercraft/client/gui/GuiDiskDrive.java

@@ -5,6 +5,7 @@
  */
 package dan200.computercraft.client.gui;
 
+import com.mojang.blaze3d.matrix.MatrixStack;
 import com.mojang.blaze3d.systems.RenderSystem;
 import dan200.computercraft.shared.peripheral.diskdrive.ContainerDiskDrive;
 import net.minecraft.client.gui.screen.inventory.ContainerScreen;
@@ -12,6 +13,8 @@ import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.text.ITextComponent;
 
+import javax.annotation.Nonnull;
+
 public class GuiDiskDrive extends ContainerScreen<ContainerDiskDrive>
 {
     private static final ResourceLocation BACKGROUND = new ResourceLocation( "computercraft", "textures/gui/disk_drive.png" );
@@ -22,26 +25,18 @@ public class GuiDiskDrive extends ContainerScreen<ContainerDiskDrive>
     }
 
     @Override
-    protected void renderLabels( int mouseX, int mouseY )
-    {
-        String title = this.title.getColoredString();
-        font.draw( title, (imageWidth - font.width( title )) / 2.0f, 6, 0x404040 );
-        font.draw( title, 8, imageHeight - 96 + 2, 0x404040 );
-    }
-
-    @Override
-    protected void renderBg( float partialTicks, int mouseX, int mouseY )
+    protected void renderBg( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
     {
         RenderSystem.color4f( 1.0F, 1.0F, 1.0F, 1.0F );
         minecraft.getTextureManager().bind( BACKGROUND );
-        blit( leftPos, topPos, 0, 0, imageWidth, imageHeight );
+        blit( transform, leftPos, topPos, 0, 0, imageWidth, imageHeight );
     }
 
     @Override
-    public void render( int mouseX, int mouseY, float partialTicks )
+    public void render( @Nonnull MatrixStack transform, int mouseX, int mouseY, float partialTicks )
     {
-        renderBackground();
-        super.render( mouseX, mouseY, partialTicks );
-        renderTooltip( mouseX, mouseY );
+        renderBackground( transform );
+        super.render( transform, mouseX, mouseY, partialTicks );
+        renderTooltip( transform, mouseX, mouseY );
     }
 }

src/main/java/dan200/computercraft/client/gui/GuiPrinter.java

@@ -5,14 +5,16 @@
  */
 package dan200.computercraft.client.gui;
 
+import com.mojang.blaze3d.matrix.MatrixStack;
 import com.mojang.blaze3d.systems.RenderSystem;
 import dan200.computercraft.shared.peripheral.printer.ContainerPrinter;
 import net.minecraft.client.gui.screen.inventory.ContainerScreen;
-import net.minecraft.client.resources.I18n;
 import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.text.ITextComponent;
 
+import javax.annotation.Nonnull;
+
 public class GuiPrinter extends ContainerScreen<ContainerPrinter>
 {
     private static final ResourceLocation BACKGROUND = new ResourceLocation( "computercraft", "textures/gui/printer.png" );
@@ -22,29 +24,29 @@ public class GuiPrinter extends ContainerScreen<ContainerPrinter>
         super( container, player, title );
     }
 
-    @Override
-    protected void renderLabels( int mouseX, int mouseY )
+    /*@Override
+    protected void drawGuiContainerForegroundLayer( int mouseX, int mouseY )
     {
-        String title = getTitle().getColoredString();
-        font.draw( title, (imageWidth - font.width( title )) / 2.0f, 6, 0x404040 );
-        font.draw( I18n.get( "container.inventory" ), 8, imageHeight - 96 + 2, 0x404040 );
-    }
+        String title = getTitle().getFormattedText();
+        font.drawString( title, (xSize - font.getStringWidth( title )) / 2.0f, 6, 0x404040 );
+        font.drawString( I18n.format( "container.inventory" ), 8, ySize - 96 + 2, 0x404040 );
+    }*/
 
     @Override
-    protected void renderBg( float partialTicks, int mouseX, int mouseY )
+    protected void renderBg( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
     {
         RenderSystem.color4f( 1.0F, 1.0F, 1.0F, 1.0F );
         minecraft.getTextureManager().bind( BACKGROUND );
-        blit( leftPos, topPos, 0, 0, imageWidth, imageHeight );
+        blit( transform, leftPos, topPos, 0, 0, imageWidth, imageHeight );
 
-        if( getMenu().isPrinting() ) blit( leftPos + 34, topPos + 21, 176, 0, 25, 45 );
+        if( getMenu().isPrinting() ) blit( transform, leftPos + 34, topPos + 21, 176, 0, 25, 45 );
     }
 
     @Override
-    public void render( int mouseX, int mouseY, float partialTicks )
+    public void render( @Nonnull MatrixStack stack, int mouseX, int mouseY, float partialTicks )
     {
-        renderBackground();
-        super.render( mouseX, mouseY, partialTicks );
-        renderTooltip( mouseX, mouseY );
+        renderBackground( stack );
+        super.render( stack, mouseX, mouseY, partialTicks );
+        renderTooltip( stack, mouseX, mouseY );
     }
 }

src/main/java/dan200/computercraft/client/gui/GuiPrintout.java

@@ -5,6 +5,7 @@
  */
 package dan200.computercraft.client.gui;
 
+import com.mojang.blaze3d.matrix.MatrixStack;
 import com.mojang.blaze3d.systems.RenderSystem;
 import dan200.computercraft.core.terminal.TextBuffer;
 import dan200.computercraft.shared.common.ContainerHeldItem;
@@ -12,18 +13,17 @@ import dan200.computercraft.shared.media.items.ItemPrintout;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.screen.inventory.ContainerScreen;
 import net.minecraft.client.renderer.IRenderTypeBuffer;
-import net.minecraft.client.renderer.Matrix4f;
-import net.minecraft.client.renderer.TransformationMatrix;
 import net.minecraft.entity.player.PlayerInventory;
+import net.minecraft.util.math.vector.Matrix4f;
 import net.minecraft.util.text.ITextComponent;
 import org.lwjgl.glfw.GLFW;
 
+import javax.annotation.Nonnull;
+
 import static dan200.computercraft.client.render.PrintoutRenderer.*;
 
 public class GuiPrintout extends ContainerScreen<ContainerHeldItem>
 {
-    private static final Matrix4f IDENTITY = TransformationMatrix.identity().getMatrix();
-
     private final boolean book;
     private final int pages;
     private final TextBuffer[] text;
@@ -91,27 +91,33 @@ public class GuiPrintout extends ContainerScreen<ContainerHeldItem>
     }
 
     @Override
-    public void renderBg( float partialTicks, int mouseX, int mouseY )
+    protected void renderBg( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
     {
         // Draw the printout
         RenderSystem.color4f( 1.0f, 1.0f, 1.0f, 1.0f );
         RenderSystem.enableDepthTest();
 
         IRenderTypeBuffer.Impl renderer = Minecraft.getInstance().renderBuffers().bufferSource();
-        drawBorder( IDENTITY, renderer, leftPos, topPos, getBlitOffset(), page, pages, book );
-        drawText( IDENTITY, renderer, leftPos + X_TEXT_MARGIN, topPos + Y_TEXT_MARGIN, ItemPrintout.LINES_PER_PAGE * page, text, colours );
+        Matrix4f matrix = transform.last().pose();
+        drawBorder( matrix, renderer, leftPos, topPos, getBlitOffset(), page, pages, book );
+        drawText( matrix, renderer, leftPos + X_TEXT_MARGIN, topPos + Y_TEXT_MARGIN, ItemPrintout.LINES_PER_PAGE * page, text, colours );
         renderer.endBatch();
     }
 
     @Override
-    public void render( int mouseX, int mouseY, float partialTicks )
+    public void render( @Nonnull MatrixStack stack, int mouseX, int mouseY, float partialTicks )
     {
         // We must take the background further back in order to not overlap with our printed pages.
         setBlitOffset( getBlitOffset() - 1 );
-        renderBackground();
+        renderBackground( stack );
         setBlitOffset( getBlitOffset() + 1 );
 
-        super.render( mouseX, mouseY, partialTicks );
-        renderTooltip( mouseX, mouseY );
+        super.render( stack, mouseX, mouseY, partialTicks );
+    }
+
+    @Override
+    protected void renderLabels( @Nonnull MatrixStack transform, int mouseX, int mouseY )
+    {
+        // Skip rendering labels.
     }
 }

src/main/java/dan200/computercraft/client/gui/GuiTurtle.java

@@ -5,6 +5,7 @@
  */
 package dan200.computercraft.client.gui;
 
+import com.mojang.blaze3d.matrix.MatrixStack;
 import com.mojang.blaze3d.systems.RenderSystem;
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.client.gui.widgets.WidgetTerminal;
@@ -18,6 +19,8 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.text.ITextComponent;
 import org.lwjgl.glfw.GLFW;
 
+import javax.annotation.Nonnull;
+
 public class GuiTurtle extends ContainerScreen<ContainerTurtle>
 {
     private static final ResourceLocation BACKGROUND_NORMAL = new ResourceLocation( ComputerCraft.MOD_ID, "textures/gui/turtle_normal.png" );
@@ -92,41 +95,38 @@ public class GuiTurtle extends ContainerScreen<ContainerTurtle>
         return super.keyPressed( key, scancode, modifiers );
     }
 
-    private void drawSelectionSlot( boolean advanced )
-    {
-        // Draw selection slot
-        int slot = container.getSelectedSlot();
-        if( slot >= 0 )
-        {
-            RenderSystem.color4f( 1.0F, 1.0F, 1.0F, 1.0F );
-            int slotX = slot % 4;
-            int slotY = slot / 4;
-            minecraft.getTextureManager().bind( advanced ? BACKGROUND_ADVANCED : BACKGROUND_NORMAL );
-            blit( leftPos + ContainerTurtle.TURTLE_START_X - 2 + slotX * 18, topPos + ContainerTurtle.PLAYER_START_Y - 2 + slotY * 18, 0, 217, 24, 24 );
-        }
-    }
-
     @Override
-    protected void renderBg( float partialTicks, int mouseX, int mouseY )
+    protected void renderBg( @Nonnull MatrixStack transform, float partialTicks, int mouseX, int mouseY )
     {
         // Draw term
-        boolean advanced = family == ComputerFamily.ADVANCED;
+        ResourceLocation texture = family == ComputerFamily.ADVANCED ? BACKGROUND_ADVANCED : BACKGROUND_NORMAL;
         terminal.draw( terminalWrapper.getX(), terminalWrapper.getY() );
 
         // Draw border/inventory
         RenderSystem.color4f( 1.0F, 1.0F, 1.0F, 1.0F );
-        minecraft.getTextureManager().bind( advanced ? BACKGROUND_ADVANCED : BACKGROUND_NORMAL );
-        blit( leftPos, topPos, 0, 0, imageWidth, imageHeight );
+        minecraft.getTextureManager().bind( texture );
+        blit( transform, leftPos, topPos, 0, 0, imageWidth, imageHeight );
 
-        drawSelectionSlot( advanced );
+        // Draw selection slot
+        int slot = container.getSelectedSlot();
+        if( slot >= 0 )
+        {
+            int slotX = slot % 4;
+            int slotY = slot / 4;
+            blit( transform,
+                leftPos + ContainerTurtle.TURTLE_START_X - 2 + slotX * 18,
+                topPos + ContainerTurtle.PLAYER_START_Y - 2 + slotY * 18,
+                0, 217, 24, 24
+            );
+        }
     }
 
     @Override
-    public void render( int mouseX, int mouseY, float partialTicks )
+    public void render( @Nonnull MatrixStack stack, int mouseX, int mouseY, float partialTicks )
     {
-        renderBackground();
-        super.render( mouseX, mouseY, partialTicks );
-        renderTooltip( mouseX, mouseY );
+        renderBackground( stack );
+        super.render( stack, mouseX, mouseY, partialTicks );
+        renderTooltip( stack, mouseX, mouseY );
     }
 
     @Override
@@ -135,4 +135,10 @@ public class GuiTurtle extends ContainerScreen<ContainerTurtle>
         return (getFocused() != null && getFocused().mouseDragged( x, y, button, deltaX, deltaY ))
             || super.mouseDragged( x, y, button, deltaX, deltaY );
     }
+
+    @Override
+    protected void renderLabels( @Nonnull MatrixStack transform, int mouseX, int mouseY )
+    {
+        // Skip rendering labels.
+    }
 }

src/main/java/dan200/computercraft/client/proxy/ComputerCraftProxyClient.java

@@ -11,13 +11,19 @@ import dan200.computercraft.client.render.TileEntityMonitorRenderer;
 import dan200.computercraft.client.render.TileEntityTurtleRenderer;
 import dan200.computercraft.client.render.TurtlePlayerRenderer;
 import dan200.computercraft.shared.Registry;
+import dan200.computercraft.shared.common.IColouredItem;
 import dan200.computercraft.shared.computer.inventory.ContainerComputer;
 import dan200.computercraft.shared.computer.inventory.ContainerViewComputer;
 import dan200.computercraft.shared.peripheral.monitor.ClientMonitor;
 import dan200.computercraft.shared.pocket.inventory.ContainerPocketComputer;
+import dan200.computercraft.shared.pocket.items.ItemPocketComputer;
 import net.minecraft.client.gui.ScreenManager;
 import net.minecraft.client.renderer.RenderType;
 import net.minecraft.client.renderer.RenderTypeLookup;
+import net.minecraft.item.IItemPropertyGetter;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemModelsProperties;
+import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.event.world.WorldEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
@@ -26,6 +32,8 @@ import net.minecraftforge.fml.client.registry.RenderingRegistry;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
 
+import java.util.function.Supplier;
+
 @Mod.EventBusSubscriber( modid = ComputerCraft.MOD_ID, value = Dist.CLIENT, bus = Mod.EventBusSubscriber.Bus.MOD )
 public final class ComputerCraftProxyClient
 {
@@ -49,6 +57,25 @@ public final class ComputerCraftProxyClient
         ClientRegistry.bindTileEntityRenderer( Registry.ModTiles.TURTLE_ADVANCED.get(), TileEntityTurtleRenderer::new );
 
         RenderingRegistry.registerEntityRenderingHandler( Registry.ModEntities.TURTLE_PLAYER.get(), TurtlePlayerRenderer::new );
+
+        registerItemProperty( "state",
+            ( stack, world, player ) -> ItemPocketComputer.getState( stack ).ordinal(),
+            Registry.ModItems.POCKET_COMPUTER_NORMAL, Registry.ModItems.POCKET_COMPUTER_ADVANCED
+        );
+        registerItemProperty( "state",
+            ( stack, world, player ) -> IColouredItem.getColourBasic( stack ) != -1 ? 1 : 0,
+            Registry.ModItems.POCKET_COMPUTER_NORMAL, Registry.ModItems.POCKET_COMPUTER_ADVANCED
+        );
+    }
+
+    @SafeVarargs
+    private static void registerItemProperty( String name, IItemPropertyGetter getter, Supplier<? extends Item>... items )
+    {
+        ResourceLocation id = new ResourceLocation( ComputerCraft.MOD_ID, name );
+        for( Supplier<? extends Item> item : items )
+        {
+            ItemModelsProperties.register( item.get(), id, getter );
+        }
     }
 
     private static void registerContainers()

src/main/java/dan200/computercraft/client/render/CableHighlightRenderer.java

@@ -14,14 +14,14 @@ import dan200.computercraft.shared.peripheral.modem.wired.CableShapes;
 import dan200.computercraft.shared.util.WorldUtil;
 import net.minecraft.block.BlockState;
 import net.minecraft.client.renderer.ActiveRenderInfo;
-import net.minecraft.client.renderer.Matrix4f;
 import net.minecraft.client.renderer.RenderType;
 import net.minecraft.client.renderer.WorldRenderer;
 import net.minecraft.entity.Entity;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.BlockRayTraceResult;
-import net.minecraft.util.math.Vec3d;
 import net.minecraft.util.math.shapes.VoxelShape;
+import net.minecraft.util.math.vector.Matrix4f;
+import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.world.World;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.client.event.DrawHighlightEvent;
@@ -63,7 +63,7 @@ public final class CableHighlightRenderer
             ? CableShapes.getModemShape( state )
             : CableShapes.getCableShape( state );
 
-        Vec3d cameraPos = info.getPosition();
+        Vector3d cameraPos = info.getPosition();
         double xOffset = pos.getX() - cameraPos.x();
         double yOffset = pos.getY() - cameraPos.y();
         double zOffset = pos.getZ() - cameraPos.z();

src/main/java/dan200/computercraft/client/render/ComputerBorderRenderer.java

@@ -10,10 +10,10 @@ import com.mojang.blaze3d.vertex.IVertexBuilder;
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.shared.computer.core.ComputerFamily;
 import net.minecraft.client.renderer.BufferBuilder;
-import net.minecraft.client.renderer.Matrix4f;
 import net.minecraft.client.renderer.Tessellator;
 import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
 import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.math.vector.Matrix4f;
 import org.lwjgl.opengl.GL11;
 
 import javax.annotation.Nonnull;
@@ -47,7 +47,10 @@ public class ComputerBorderRenderer
     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 GAP = 4;
+    private static final int LIGHT_BORDER_Y = 56;
+    private static final int LIGHT_CORNER_Y = 80;
+
+    public static final int LIGHT_HEIGHT = 8;
 
     private static final float TEX_SCALE = 1 / 256.0f;
 
@@ -101,15 +104,15 @@ public class ComputerBorderRenderer
 
     public static void render( Matrix4f transform, IVertexBuilder buffer, int x, int y, int z, int width, int height, float r, float g, float b )
     {
-        render( transform, buffer, x, y, z, width, height, 0, r, g, b );
+        render( transform, buffer, x, y, z, width, height, false, r, g, b );
     }
 
-    public static void render( Matrix4f transform, IVertexBuilder buffer, int x, int y, int z, int width, int height, int borderHeight, float r, float g, float b )
+    public static void render( Matrix4f transform, IVertexBuilder buffer, int x, int y, int z, int width, int height, boolean withLight, float r, float g, float b )
     {
-        new ComputerBorderRenderer( transform, buffer, z, r, g, b ).doRender( x, y, width, height, borderHeight );
+        new ComputerBorderRenderer( transform, buffer, z, r, g, b ).doRender( x, y, width, height, withLight );
     }
 
-    public void doRender( int x, int y, int width, int height, int bottomHeight )
+    public void doRender( int x, int y, int width, int height, boolean withLight )
     {
         int endX = x + width;
         int endY = y + height;
@@ -125,28 +128,18 @@ public class ComputerBorderRenderer
 
         // Bottom bar. We allow for drawing a stretched version, which allows for additional elements (such as the
         // pocket computer's lights).
-        if( bottomHeight <= 0 )
+        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 );
+        }
+        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 );
         }
-        else
-        {
-            // Bottom left, middle, right. We do this in three portions: the top inner corners, an extended region for
-            // lights, and then the bottom outer corners.
-            renderTexture( x - BORDER, endY, CORNER_LEFT_X, CORNER_BOTTOM_Y, BORDER, BORDER / 2 );
-            renderTexture( x, endY, 0, BORDER, width, BORDER / 2, BORDER, BORDER / 2 );
-            renderTexture( endX, endY, CORNER_RIGHT_X, CORNER_BOTTOM_Y, BORDER, BORDER / 2 );
-
-            renderTexture( x - BORDER, endY + BORDER / 2, CORNER_LEFT_X, CORNER_BOTTOM_Y + GAP, BORDER, bottomHeight, BORDER, GAP );
-            renderTexture( x, endY + BORDER / 2, 0, BORDER + GAP, width, bottomHeight, BORDER, GAP );
-            renderTexture( endX, endY + BORDER / 2, CORNER_RIGHT_X, CORNER_BOTTOM_Y + GAP, BORDER, bottomHeight, BORDER, GAP );
-
-            renderTexture( x - BORDER, endY + bottomHeight + BORDER / 2, CORNER_LEFT_X, CORNER_BOTTOM_Y + BORDER / 2, BORDER, BORDER / 2 );
-            renderTexture( x, endY + bottomHeight + BORDER / 2, 0, BORDER + BORDER / 2, width, BORDER / 2 );
-            renderTexture( endX, endY + bottomHeight + BORDER / 2, CORNER_RIGHT_X, CORNER_BOTTOM_Y + BORDER / 2, BORDER, BORDER / 2 );
-        }
     }
 
     private void renderCorner( int x, int y, int u, int v )

src/main/java/dan200/computercraft/client/render/ItemMapLikeRenderer.java

@@ -10,12 +10,12 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.player.AbstractClientPlayerEntity;
 import net.minecraft.client.renderer.FirstPersonRenderer;
 import net.minecraft.client.renderer.IRenderTypeBuffer;
-import net.minecraft.client.renderer.Vector3f;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.Hand;
 import net.minecraft.util.HandSide;
 import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.vector.Vector3f;
 
 public abstract class ItemMapLikeRenderer
 {

src/main/java/dan200/computercraft/client/render/ItemPocketRenderer.java

@@ -15,9 +15,13 @@ import dan200.computercraft.shared.computer.core.ComputerFamily;
 import dan200.computercraft.shared.pocket.items.ItemPocketComputer;
 import dan200.computercraft.shared.util.Colour;
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.*;
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.IRenderTypeBuffer;
+import net.minecraft.client.renderer.Tessellator;
 import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.math.vector.Matrix4f;
+import net.minecraft.util.math.vector.Vector3f;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.client.event.RenderHandEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
@@ -26,8 +30,7 @@ import org.lwjgl.opengl.GL11;
 
 import static dan200.computercraft.client.gui.FixedWidthFontRenderer.FONT_HEIGHT;
 import static dan200.computercraft.client.gui.FixedWidthFontRenderer.FONT_WIDTH;
-import static dan200.computercraft.client.render.ComputerBorderRenderer.BORDER;
-import static dan200.computercraft.client.render.ComputerBorderRenderer.MARGIN;
+import static dan200.computercraft.client.render.ComputerBorderRenderer.*;
 
 /**
  * Emulates map rendering for pocket computers.
@@ -35,8 +38,6 @@ import static dan200.computercraft.client.render.ComputerBorderRenderer.MARGIN;
 @Mod.EventBusSubscriber( modid = ComputerCraft.MOD_ID, value = Dist.CLIENT )
 public final class ItemPocketRenderer extends ItemMapLikeRenderer
 {
-    private static final int LIGHT_HEIGHT = 8;
-
     private static final ItemPocketRenderer INSTANCE = new ItemPocketRenderer();
 
     private ItemPocketRenderer()
@@ -127,7 +128,7 @@ public final class ItemPocketRenderer extends ItemMapLikeRenderer
         BufferBuilder buffer = tessellator.getBuilder();
         buffer.begin( GL11.GL_QUADS, DefaultVertexFormats.POSITION_COLOR_TEX );
 
-        ComputerBorderRenderer.render( transform, buffer, 0, 0, 0, width, height, LIGHT_HEIGHT, r, g, b );
+        ComputerBorderRenderer.render( transform, buffer, 0, 0, 0, width, height, true, r, g, b );
 
         tessellator.end();
     }

src/main/java/dan200/computercraft/client/render/ItemPrintoutRenderer.java

@@ -9,9 +9,9 @@ import com.mojang.blaze3d.matrix.MatrixStack;
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.shared.media.items.ItemPrintout;
 import net.minecraft.client.renderer.IRenderTypeBuffer;
-import net.minecraft.client.renderer.Matrix4f;
-import net.minecraft.client.renderer.Vector3f;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.math.vector.Matrix4f;
+import net.minecraft.util.math.vector.Vector3f;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.client.event.RenderHandEvent;
 import net.minecraftforge.client.event.RenderItemInFrameEvent;

src/main/java/dan200/computercraft/client/render/MonitorHighlightRenderer.java

@@ -9,12 +9,12 @@ import com.mojang.blaze3d.matrix.MatrixStack;
 import com.mojang.blaze3d.vertex.IVertexBuilder;
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.shared.peripheral.monitor.TileMonitor;
-import net.minecraft.client.renderer.Matrix4f;
 import net.minecraft.client.renderer.RenderType;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.Direction;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.vector.Matrix4f;
+import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.world.World;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.client.event.DrawHighlightEvent;
@@ -61,7 +61,7 @@ public final class MonitorHighlightRenderer
         if( monitor.getYIndex() != monitor.getHeight() - 1 ) faces.remove( monitor.getDown() );
 
         MatrixStack transformStack = event.getMatrix();
-        Vec3d cameraPos = event.getInfo().getPosition();
+        Vector3d cameraPos = event.getInfo().getPosition();
         transformStack.pushPose();
         transformStack.translate( pos.getX() - cameraPos.x(), pos.getY() - cameraPos.y(), pos.getZ() - cameraPos.z() );
 

src/main/java/dan200/computercraft/client/render/MonitorTextureBufferShader.java

@@ -11,8 +11,8 @@ import com.mojang.blaze3d.systems.RenderSystem;
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.client.gui.FixedWidthFontRenderer;
 import dan200.computercraft.shared.util.Palette;
-import net.minecraft.client.renderer.Matrix4f;
 import net.minecraft.client.renderer.texture.TextureUtil;
+import net.minecraft.util.math.vector.Matrix4f;
 import org.lwjgl.BufferUtils;
 import org.lwjgl.opengl.GL13;
 import org.lwjgl.opengl.GL20;

src/main/java/dan200/computercraft/client/render/PrintoutRenderer.java

@@ -10,11 +10,11 @@ import dan200.computercraft.client.gui.FixedWidthFontRenderer;
 import dan200.computercraft.core.terminal.TextBuffer;
 import dan200.computercraft.shared.util.Palette;
 import net.minecraft.client.renderer.IRenderTypeBuffer;
-import net.minecraft.client.renderer.Matrix4f;
 import net.minecraft.client.renderer.RenderState;
 import net.minecraft.client.renderer.RenderType;
 import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
 import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.math.vector.Matrix4f;
 import org.lwjgl.opengl.GL11;
 
 import static dan200.computercraft.client.gui.FixedWidthFontRenderer.FONT_HEIGHT;

src/main/java/dan200/computercraft/client/render/TileEntityMonitorRenderer.java

@@ -24,6 +24,9 @@ import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
 import net.minecraft.client.renderer.vertex.VertexBuffer;
 import net.minecraft.util.Direction;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.vector.Matrix4f;
+import net.minecraft.util.math.vector.TransformationMatrix;
+import net.minecraft.util.math.vector.Vector3f;
 import org.lwjgl.opengl.GL11;
 import org.lwjgl.opengl.GL13;
 import org.lwjgl.opengl.GL20;
@@ -141,6 +144,10 @@ public class TileEntityMonitorRenderer extends TileEntityRenderer<TileMonitor>
             (float) (xSize + 2 * TileMonitor.RENDER_MARGIN), (float) -(ySize + TileMonitor.RENDER_MARGIN * 2)
         );
 
+        // Force a flush of the blocker. WorldRenderer.updateCameraAndRender will "finish" all the built-in
+        // buffers before calling renderer.finish, which means the blocker isn't actually rendered at that point!
+        renderer.getBuffer( RenderType.solid() );
+
         transform.popPose();
     }
 

src/main/java/dan200/computercraft/client/render/TileEntityTurtleRenderer.java

@@ -19,8 +19,6 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.FontRenderer;
 import net.minecraft.client.renderer.Atlases;
 import net.minecraft.client.renderer.IRenderTypeBuffer;
-import net.minecraft.client.renderer.Matrix4f;
-import net.minecraft.client.renderer.Vector3f;
 import net.minecraft.client.renderer.model.BakedQuad;
 import net.minecraft.client.renderer.model.IBakedModel;
 import net.minecraft.client.renderer.model.ModelManager;
@@ -31,7 +29,9 @@ import net.minecraft.util.Direction;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.BlockRayTraceResult;
 import net.minecraft.util.math.RayTraceResult;
-import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.vector.Matrix4f;
+import net.minecraft.util.math.vector.Vector3d;
+import net.minecraft.util.math.vector.Vector3f;
 import net.minecraftforge.client.model.data.EmptyModelData;
 
 import javax.annotation.Nonnull;
@@ -99,7 +99,7 @@ public class TileEntityTurtleRenderer extends TileEntityRenderer<TileTurtle>
         transform.pushPose();
 
         // Setup the transform.
-        Vec3d offset = turtle.getRenderOffset( partialTicks );
+        Vector3d offset = turtle.getRenderOffset( partialTicks );
         float yaw = turtle.getRenderYaw( partialTicks );
         transform.translate( offset.x, offset.y, offset.z );
 

src/main/java/dan200/computercraft/client/render/TurtleModelLoader.java

@@ -57,16 +57,16 @@ public final class TurtleModelLoader implements IModelLoader<TurtleModelLoader.T
         }
 
         @Override
-        public Collection<Material> getTextures( IModelConfiguration owner, Function<ResourceLocation, IUnbakedModel> modelGetter, Set<Pair<String, String>> missingTextureErrors )
+        public Collection<RenderMaterial> getTextures( IModelConfiguration owner, Function<ResourceLocation, IUnbakedModel> modelGetter, Set<Pair<String, String>> missingTextureErrors )
         {
-            Set<Material> materials = new HashSet<>();
+            Set<RenderMaterial> materials = new HashSet<>();
             materials.addAll( modelGetter.apply( family ).getMaterials( modelGetter, missingTextureErrors ) );
             materials.addAll( modelGetter.apply( COLOUR_TURTLE_MODEL ).getMaterials( modelGetter, missingTextureErrors ) );
             return materials;
         }
 
         @Override
-        public IBakedModel bake( IModelConfiguration owner, ModelBakery bakery, Function<Material, TextureAtlasSprite> spriteGetter, IModelTransform transform, ItemOverrideList overrides, ResourceLocation modelLocation )
+        public IBakedModel bake( IModelConfiguration owner, ModelBakery bakery, Function<RenderMaterial, TextureAtlasSprite> spriteGetter, IModelTransform transform, ItemOverrideList overrides, ResourceLocation modelLocation )
         {
             return new TurtleSmartItemModel(
                 bakery.getBakedModel( family, transform, spriteGetter ),

src/main/java/dan200/computercraft/client/render/TurtleMultiModel.java

@@ -7,12 +7,12 @@ package dan200.computercraft.client.render;
 
 import dan200.computercraft.api.client.TransformedModel;
 import net.minecraft.block.BlockState;
-import net.minecraft.client.renderer.TransformationMatrix;
 import net.minecraft.client.renderer.model.BakedQuad;
 import net.minecraft.client.renderer.model.IBakedModel;
 import net.minecraft.client.renderer.model.ItemOverrideList;
 import net.minecraft.client.renderer.texture.TextureAtlasSprite;
 import net.minecraft.util.Direction;
+import net.minecraft.util.math.vector.TransformationMatrix;
 import net.minecraftforge.client.model.data.EmptyModelData;
 import net.minecraftforge.client.model.data.IModelData;
 import net.minecraftforge.client.model.pipeline.BakedQuadBuilder;

src/main/java/dan200/computercraft/client/render/TurtleSmartItemModel.java

@@ -15,14 +15,14 @@ import dan200.computercraft.shared.util.Holiday;
 import dan200.computercraft.shared.util.HolidayUtil;
 import net.minecraft.block.BlockState;
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.TransformationMatrix;
 import net.minecraft.client.renderer.model.*;
 import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.client.world.ClientWorld;
 import net.minecraft.entity.LivingEntity;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.Direction;
 import net.minecraft.util.ResourceLocation;
-import net.minecraft.world.World;
+import net.minecraft.util.math.vector.TransformationMatrix;
 import net.minecraftforge.client.model.data.IModelData;
 
 import javax.annotation.Nonnull;
@@ -109,7 +109,7 @@ public class TurtleSmartItemModel implements IBakedModel
         {
             @Nonnull
             @Override
-            public IBakedModel resolve( @Nonnull IBakedModel originalModel, @Nonnull ItemStack stack, @Nullable World world, @Nullable LivingEntity entity )
+            public IBakedModel resolve( @Nonnull IBakedModel originalModel, @Nonnull ItemStack stack, @Nullable ClientWorld world, @Nullable LivingEntity entity )
             {
                 ItemTurtle turtle = (ItemTurtle) stack.getItem();
                 int colour = turtle.getColour( stack );

src/main/java/dan200/computercraft/core/apis/HTTPAPI.java

@@ -14,6 +14,7 @@ import dan200.computercraft.core.apis.http.*;
 import dan200.computercraft.core.apis.http.request.HttpRequest;
 import dan200.computercraft.core.apis.http.websocket.Websocket;
 import io.netty.handler.codec.http.DefaultHttpHeaders;
+import io.netty.handler.codec.http.HttpHeaderNames;
 import io.netty.handler.codec.http.HttpHeaders;
 import io.netty.handler.codec.http.HttpMethod;
 
@@ -179,7 +180,7 @@ public class HTTPAPI implements ILuaAPI
     }
 
     @Nonnull
-    private static HttpHeaders getHeaders( @Nonnull Map<?, ?> headerTable ) throws LuaException
+    private HttpHeaders getHeaders( @Nonnull Map<?, ?> headerTable ) throws LuaException
     {
         HttpHeaders headers = new DefaultHttpHeaders();
         for( Map.Entry<?, ?> entry : headerTable.entrySet() )
@@ -197,6 +198,11 @@ public class HTTPAPI implements ILuaAPI
                 }
             }
         }
+
+        if( !headers.contains( HttpHeaderNames.USER_AGENT ) )
+        {
+            headers.set( HttpHeaderNames.USER_AGENT, apiEnvironment.getComputerEnvironment().getUserAgent() );
+        }
         return headers;
     }
 }

src/main/java/dan200/computercraft/core/apis/LuaDateTime.java

@@ -89,7 +89,7 @@ final class LuaDateTime
                             formatter.appendValue( ChronoField.HOUR_OF_DAY, 2 );
                             break;
                         case 'I':
-                            formatter.appendValue( ChronoField.HOUR_OF_AMPM );
+                            formatter.appendValue( ChronoField.HOUR_OF_AMPM, 2 );
                             break;
                         case 'j':
                             formatter.appendValue( ChronoField.DAY_OF_YEAR, 3 );

src/main/java/dan200/computercraft/core/apis/RedstoneAPI.java

@@ -191,7 +191,7 @@ public class RedstoneAPI implements ILuaAPI
     @LuaFunction
     public final int getBundledInput( ComputerSide side )
     {
-        return environment.getBundledOutput( side );
+        return environment.getBundledInput( side );
     }
 
     /**

src/main/java/dan200/computercraft/core/apis/http/request/HttpRequestHandler.java

@@ -80,10 +80,6 @@ public final class HttpRequestHandler extends SimpleChannelInboundHandler<HttpOb
         {
             request.headers().set( HttpHeaderNames.ACCEPT_CHARSET, "UTF-8" );
         }
-        if( !request.headers().contains( HttpHeaderNames.USER_AGENT ) )
-        {
-            request.headers().set( HttpHeaderNames.USER_AGENT, this.request.environment().getComputerEnvironment().getUserAgent() );
-        }
         request.headers().set( HttpHeaderNames.HOST, uri.getPort() < 0 ? uri.getHost() : uri.getHost() + ":" + uri.getPort() );
         request.headers().set( HttpHeaderNames.CONNECTION, HttpHeaderValues.CLOSE );
 

src/main/java/dan200/computercraft/core/apis/http/request/HttpResponseHandle.java

@@ -58,10 +58,10 @@ public class HttpResponseHandle implements ObjectSource
      * If multiple headers are sent with the same name, they will be combined with a comma.
      *
      * @return The response's headers.
-     * @cc.usage Make a request to [example.computercraft.cc](https://example.computercraft.cc), and print the
+     * @cc.usage Make a request to [example.tweaked.cc](https://example.tweaked.cc), and print the
      * returned headers.
      * <pre>{@code
-     * local request = http.get("https://example.computercraft.cc")
+     * local request = http.get("https://example.tweaked.cc")
      * print(textutils.serialize(request.getResponseHeaders()))
      * -- => {
      * --  [ "Content-Type" ] = "text/plain; charset=utf8",

src/main/java/dan200/computercraft/core/asm/Generator.java

@@ -11,10 +11,7 @@ import com.google.common.cache.LoadingCache;
 import com.google.common.primitives.Primitives;
 import com.google.common.reflect.TypeToken;
 import dan200.computercraft.ComputerCraft;
-import dan200.computercraft.api.lua.IArguments;
-import dan200.computercraft.api.lua.LuaException;
-import dan200.computercraft.api.lua.LuaFunction;
-import dan200.computercraft.api.lua.MethodResult;
+import dan200.computercraft.api.lua.*;
 import org.objectweb.asm.ClassWriter;
 import org.objectweb.asm.MethodVisitor;
 import org.objectweb.asm.Type;
@@ -111,7 +108,7 @@ public final class Generator<T>
             addMethod( methods, method, annotation, instance );
         }
 
-        for( GenericSource.GenericMethod method : GenericSource.GenericMethod.all() )
+        for( GenericMethod method : GenericMethod.all() )
         {
             if( !method.target.isAssignableFrom( klass ) ) continue;
 

src/main/java/dan200/computercraft/core/asm/GenericMethod.java

@@ -0,0 +1,90 @@
+/*
+ * This file is part of ComputerCraft - http://www.computercraft.info
+ * Copyright Daniel Ratcliffe, 2011-2021. Do not distribute without permission.
+ * Send enquiries to dratcliffe@gmail.com
+ */
+package dan200.computercraft.core.asm;
+
+import dan200.computercraft.ComputerCraft;
+import dan200.computercraft.api.lua.GenericSource;
+import dan200.computercraft.api.lua.LuaFunction;
+
+import javax.annotation.Nonnull;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+/**
+ * A generic method is a method belonging to a {@link GenericSource} with a known target.
+ */
+public class GenericMethod
+{
+    final Method method;
+    final LuaFunction annotation;
+    final Class<?> target;
+
+    private static final List<GenericSource> sources = new ArrayList<>();
+    private static List<GenericMethod> cache;
+
+    GenericMethod( Method method, LuaFunction annotation, Class<?> target )
+    {
+        this.method = method;
+        this.annotation = annotation;
+        this.target = target;
+    }
+
+    /**
+     * Find all public static methods annotated with {@link LuaFunction} which belong to a {@link GenericSource}.
+     *
+     * @return All available generic methods.
+     */
+    static List<GenericMethod> all()
+    {
+        if( cache != null ) return cache;
+        return cache = sources.stream()
+            .flatMap( x -> Arrays.stream( x.getClass().getDeclaredMethods() ) )
+            .map( method ->
+            {
+                LuaFunction annotation = method.getAnnotation( LuaFunction.class );
+                if( annotation == null ) return null;
+
+                if( !Modifier.isStatic( method.getModifiers() ) )
+                {
+                    ComputerCraft.log.error( "GenericSource method {}.{} should be static.", method.getDeclaringClass(), method.getName() );
+                    return null;
+                }
+
+                Type[] types = method.getGenericParameterTypes();
+                if( types.length == 0 )
+                {
+                    ComputerCraft.log.error( "GenericSource method {}.{} has no parameters.", method.getDeclaringClass(), method.getName() );
+                    return null;
+                }
+
+                Class<?> target = Reflect.getRawType( method, types[0], false );
+                if( target == null ) return null;
+
+                return new GenericMethod( method, annotation, target );
+            } )
+            .filter( Objects::nonNull )
+            .collect( Collectors.toList() );
+    }
+
+
+    public static synchronized void register( @Nonnull GenericSource source )
+    {
+        Objects.requireNonNull( source, "Source cannot be null" );
+
+        if( cache != null )
+        {
+            ComputerCraft.log.warn( "Registering a generic source {} after cache has been built. This source will be ignored.", cache );
+        }
+
+        sources.add( source );
+    }
+}

src/main/java/dan200/computercraft/core/asm/GenericSource.java

@@ -1,120 +0,0 @@
-/*
- * This file is part of ComputerCraft - http://www.computercraft.info
- * Copyright Daniel Ratcliffe, 2011-2021. Do not distribute without permission.
- * Send enquiries to dratcliffe@gmail.com
- */
-package dan200.computercraft.core.asm;
-
-import dan200.computercraft.ComputerCraft;
-import dan200.computercraft.api.lua.LuaFunction;
-import dan200.computercraft.shared.peripheral.generic.GenericPeripheralProvider;
-import dan200.computercraft.shared.util.ServiceUtil;
-import net.minecraft.util.ResourceLocation;
-
-import javax.annotation.Nonnull;
-import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
-import java.lang.reflect.Type;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
-import java.util.Objects;
-import java.util.function.Supplier;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-/**
- * A generic source of {@link LuaMethod} functions. This allows for injecting methods onto objects you do not own.
- *
- * Unlike conventional Lua objects, the annotated methods should be {@code static}, with their target as the first
- * parameter.
- *
- * This is used by the generic peripheral system ({@link GenericPeripheralProvider}) to provide methods for arbitrary
- * tile entities. Eventually this'll be be exposed in the public API. Until it is stabilised, it will remain in this
- * package - do not use it in external mods!
- */
-public interface GenericSource
-{
-    /**
-     * A unique identifier for this generic source. This may be used in the future to allow disabling specific sources.
-     *
-     * @return This source's identifier.
-     */
-    @Nonnull
-    ResourceLocation id();
-
-    /**
-     * Register a stream of generic sources.
-     *
-     * @param sources The source of generic methods.
-     * @see ServiceUtil For ways to load this. Sadly {@link java.util.ServiceLoader} is broken under Forge, but we don't
-     * want to add a hard-dep on Forge within core either.
-     */
-    static void setup( Supplier<Stream<GenericSource>> sources )
-    {
-        GenericMethod.sources = sources;
-    }
-
-    /**
-     * A generic method is a method belonging to a {@link GenericSource} with a known target.
-     */
-    class GenericMethod
-    {
-        final Method method;
-        final LuaFunction annotation;
-        final Class<?> target;
-
-        static Supplier<Stream<GenericSource>> sources;
-        private static List<GenericMethod> cache;
-
-        GenericMethod( Method method, LuaFunction annotation, Class<?> target )
-        {
-            this.method = method;
-            this.annotation = annotation;
-            this.target = target;
-        }
-
-        /**
-         * Find all public static methods annotated with {@link LuaFunction} which belong to a {@link GenericSource}.
-         *
-         * @return All available generic methods.
-         */
-        static List<GenericMethod> all()
-        {
-            if( cache != null ) return cache;
-            if( sources == null )
-            {
-                ComputerCraft.log.warn( "Getting GenericMethods without a provider" );
-                return cache = Collections.emptyList();
-            }
-
-            return cache = sources.get()
-                .flatMap( x -> Arrays.stream( x.getClass().getDeclaredMethods() ) )
-                .map( method ->
-                {
-                    LuaFunction annotation = method.getAnnotation( LuaFunction.class );
-                    if( annotation == null ) return null;
-
-                    if( !Modifier.isStatic( method.getModifiers() ) )
-                    {
-                        ComputerCraft.log.error( "GenericSource method {}.{} should be static.", method.getDeclaringClass(), method.getName() );
-                        return null;
-                    }
-
-                    Type[] types = method.getGenericParameterTypes();
-                    if( types.length == 0 )
-                    {
-                        ComputerCraft.log.error( "GenericSource method {}.{} has no parameters.", method.getDeclaringClass(), method.getName() );
-                        return null;
-                    }
-
-                    Class<?> target = Reflect.getRawType( method, types[0], false );
-                    if( target == null ) return null;
-
-                    return new GenericMethod( method, annotation, target );
-                } )
-                .filter( Objects::nonNull )
-                .collect( Collectors.toList() );
-        }
-    }
-}

src/main/java/dan200/computercraft/core/filesystem/ResourceMount.java

@@ -12,6 +12,7 @@ import com.google.common.io.ByteStreams;
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.api.filesystem.IMount;
 import dan200.computercraft.core.apis.handles.ArrayByteChannel;
+import dan200.computercraft.shared.util.IoUtil;
 import net.minecraft.resources.IReloadableResourceManager;
 import net.minecraft.resources.IResource;
 import net.minecraft.resources.IResourceManager;
@@ -103,9 +104,13 @@ public final class ResourceMount implements IMount
     private void load()
     {
         boolean hasAny = false;
+        String existingNamespace = null;
+
         FileEntry newRoot = new FileEntry( new ResourceLocation( namespace, subPath ) );
         for( ResourceLocation file : manager.listResources( subPath, s -> true ) )
         {
+            existingNamespace = file.getNamespace();
+
             if( !file.getNamespace().equals( namespace ) ) continue;
 
             String localPath = FileSystem.toLocal( file.getPath(), subPath );
@@ -114,6 +119,15 @@ public final class ResourceMount implements IMount
         }
 
         root = hasAny ? newRoot : null;
+
+        if( !hasAny )
+        {
+            ComputerCraft.log.warn( "Cannot find any files under /data/{}/{} for resource mount.", namespace, subPath );
+            if( existingNamespace != null )
+            {
+                ComputerCraft.log.warn( "There are files under /data/{}/{} though. Did you get the wrong namespace?", existingNamespace, subPath );
+            }
+        }
     }
 
     private FileEntry get( String path )
@@ -231,11 +245,20 @@ public final class ResourceMount implements IMount
             byte[] contents = CONTENTS_CACHE.getIfPresent( file );
             if( contents != null ) return new ArrayByteChannel( contents );
 
-            try( InputStream stream = manager.getResource( file.identifier ).getInputStream() )
+            try
             {
+                InputStream stream = manager.getResource( file.identifier ).getInputStream();
                 if( stream.available() > MAX_CACHED_SIZE ) return Channels.newChannel( stream );
 
-                contents = ByteStreams.toByteArray( stream );
+                try
+                {
+                    contents = ByteStreams.toByteArray( stream );
+                }
+                finally
+                {
+                    IoUtil.closeQuietly( stream );
+                }
+
                 CONTENTS_CACHE.put( file, contents );
                 return new ArrayByteChannel( contents );
             }

src/main/java/dan200/computercraft/core/terminal/TextBuffer.java

@@ -12,46 +12,12 @@ public class TextBuffer
     public TextBuffer( char c, int length )
     {
         text = new char[length];
-        for( int i = 0; i < length; i++ )
-        {
-            text[i] = c;
-        }
+        this.fill( c );
     }
 
     public TextBuffer( String text )
     {
-        this( text, 1 );
-    }
-
-    public TextBuffer( String text, int repetitions )
-    {
-        int textLength = text.length();
-        this.text = new char[textLength * repetitions];
-        for( int i = 0; i < repetitions; i++ )
-        {
-            for( int j = 0; j < textLength; j++ )
-            {
-                this.text[j + i * textLength] = text.charAt( j );
-            }
-        }
-    }
-
-    public TextBuffer( TextBuffer text )
-    {
-        this( text, 1 );
-    }
-
-    public TextBuffer( TextBuffer text, int repetitions )
-    {
-        int textLength = text.length();
-        this.text = new char[textLength * repetitions];
-        for( int i = 0; i < repetitions; i++ )
-        {
-            for( int j = 0; j < textLength; j++ )
-            {
-                this.text[j + i * textLength] = text.charAt( j );
-            }
-        }
+        this.text = text.toCharArray();
     }
 
     public int length()
@@ -59,39 +25,16 @@ public class TextBuffer
         return text.length;
     }
 
-    public String read()
-    {
-        return read( 0, text.length );
-    }
-
-    public String read( int start )
-    {
-        return read( start, text.length );
-    }
-
-    public String read( int start, int end )
-    {
-        start = Math.max( start, 0 );
-        end = Math.min( end, text.length );
-        int textLength = Math.max( end - start, 0 );
-        return new String( text, start, textLength );
-    }
-
     public void write( String text )
     {
-        write( text, 0, text.length() );
+        write( text, 0 );
     }
 
     public void write( String text, int start )
-    {
-        write( text, start, start + text.length() );
-    }
-
-    public void write( String text, int start, int end )
     {
         int pos = start;
         start = Math.max( start, 0 );
-        end = Math.min( end, pos + text.length() );
+        int end = Math.min( start + text.length(), pos + text.length() );
         end = Math.min( end, this.text.length );
         for( int i = start; i < end; i++ )
         {
@@ -101,23 +44,10 @@ public class TextBuffer
 
     public void write( TextBuffer text )
     {
-        write( text, 0, text.length() );
-    }
-
-    public void write( TextBuffer text, int start )
-    {
-        write( text, start, start + text.length() );
-    }
-
-    public void write( TextBuffer text, int start, int end )
-    {
-        int pos = start;
-        start = Math.max( start, 0 );
-        end = Math.min( end, pos + text.length() );
-        end = Math.min( end, this.text.length );
-        for( int i = start; i < end; i++ )
+        int end = Math.min( text.length(), this.text.length );
+        for( int i = 0; i < end; i++ )
         {
-            this.text[i] = text.charAt( i - pos );
+            this.text[i] = text.charAt( i );
         }
     }
 
@@ -126,11 +56,6 @@ public class TextBuffer
         fill( c, 0, text.length );
     }
 
-    public void fill( char c, int start )
-    {
-        fill( c, start, text.length );
-    }
-
     public void fill( char c, int start, int end )
     {
         start = Math.max( start, 0 );
@@ -141,52 +66,6 @@ public class TextBuffer
         }
     }
 
-    public void fill( String text )
-    {
-        fill( text, 0, this.text.length );
-    }
-
-    public void fill( String text, int start )
-    {
-        fill( text, start, this.text.length );
-    }
-
-    public void fill( String text, int start, int end )
-    {
-        int pos = start;
-        start = Math.max( start, 0 );
-        end = Math.min( end, this.text.length );
-
-        int textLength = text.length();
-        for( int i = start; i < end; i++ )
-        {
-            this.text[i] = text.charAt( (i - pos) % textLength );
-        }
-    }
-
-    public void fill( TextBuffer text )
-    {
-        fill( text, 0, this.text.length );
-    }
-
-    public void fill( TextBuffer text, int start )
-    {
-        fill( text, start, this.text.length );
-    }
-
-    public void fill( TextBuffer text, int start, int end )
-    {
-        int pos = start;
-        start = Math.max( start, 0 );
-        end = Math.min( end, this.text.length );
-
-        int textLength = text.length();
-        for( int i = start; i < end; i++ )
-        {
-            this.text[i] = text.charAt( (i - pos) % textLength );
-        }
-    }
-
     public char charAt( int i )
     {
         return text[i];

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

@@ -16,19 +16,18 @@ import net.minecraft.data.DataGenerator;
 import net.minecraft.util.Direction;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.client.model.generators.*;
+import net.minecraftforge.common.data.ExistingFileHelper;
 
 import javax.annotation.Nonnull;
 
 public class BlockModelProvider extends BlockStateProvider
 {
-    private final ModelFile monitorBase;
-    private final ModelFile orientable;
+    private ModelFile monitorBase;
+    private ModelFile orientable;
 
     public BlockModelProvider( DataGenerator generator, ExistingFileHelper existingFileHelper )
     {
         super( generator, ComputerCraft.MOD_ID, existingFileHelper );
-        monitorBase = models().getExistingFile( new ResourceLocation( ComputerCraft.MOD_ID, "block/monitor_base" ) );
-        orientable = models().getExistingFile( new ResourceLocation( "block/orientable" ) );
     }
 
     @Nonnull
@@ -41,6 +40,9 @@ public class BlockModelProvider extends BlockStateProvider
     @Override
     protected void registerStatesAndModels()
     {
+        monitorBase = models().getExistingFile( new ResourceLocation( ComputerCraft.MOD_ID, "block/monitor_base" ) );
+        orientable = models().getExistingFile( new ResourceLocation( "block/orientable" ) );
+
         registerMonitors( Registry.ModBlocks.MONITOR_NORMAL.get() );
         registerMonitors( Registry.ModBlocks.MONITOR_ADVANCED.get() );
 

src/main/java/dan200/computercraft/data/Generators.java

@@ -22,7 +22,7 @@ public class Generators
         DataGenerator generator = event.getGenerator();
         generator.addProvider( new Recipes( generator ) );
         generator.addProvider( new LootTables( generator ) );
-        generator.addProvider( new Tags( generator ) );
+        generator.addProvider( new Tags( generator, event.getExistingFileHelper() ) );
         generator.addProvider( new BlockModelProvider( generator, event.getExistingFileHelper() ) );
     }
 }

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

@@ -12,11 +12,11 @@ import dan200.computercraft.ComputerCraft;
 import net.minecraft.data.DataGenerator;
 import net.minecraft.data.DirectoryCache;
 import net.minecraft.data.IDataProvider;
+import net.minecraft.loot.LootParameterSets;
+import net.minecraft.loot.LootTable;
+import net.minecraft.loot.LootTableManager;
+import net.minecraft.loot.ValidationTracker;
 import net.minecraft.util.ResourceLocation;
-import net.minecraft.world.storage.loot.LootParameterSets;
-import net.minecraft.world.storage.loot.LootTable;
-import net.minecraft.world.storage.loot.LootTableManager;
-import net.minecraft.world.storage.loot.ValidationTracker;
 
 import javax.annotation.Nonnull;
 import java.io.IOException;

src/main/java/dan200/computercraft/data/LootTables.java

@@ -13,10 +13,10 @@ import dan200.computercraft.shared.data.PlayerCreativeLootCondition;
 import dan200.computercraft.shared.proxy.ComputerCraftProxyCommon;
 import net.minecraft.block.Block;
 import net.minecraft.data.DataGenerator;
+import net.minecraft.loot.*;
+import net.minecraft.loot.conditions.Alternative;
+import net.minecraft.loot.conditions.SurvivesExplosion;
 import net.minecraft.util.ResourceLocation;
-import net.minecraft.world.storage.loot.*;
-import net.minecraft.world.storage.loot.conditions.Alternative;
-import net.minecraft.world.storage.loot.conditions.SurvivesExplosion;
 import net.minecraftforge.fml.RegistryObject;
 
 import java.util.function.BiConsumer;
@@ -77,9 +77,9 @@ public class LootTables extends LootTableProvider
                 .setRolls( ConstantRange.exactly( 1 ) )
                 .add( DynamicLootEntry.dynamicEntry( new ResourceLocation( ComputerCraft.MOD_ID, "computer" ) ) )
                 .when( Alternative.alternative(
-                    BlockNamedEntityLootCondition.builder(),
-                    HasComputerIdLootCondition.builder(),
-                    PlayerCreativeLootCondition.builder().invert()
+                    BlockNamedEntityLootCondition.BUILDER,
+                    HasComputerIdLootCondition.BUILDER,
+                    PlayerCreativeLootCondition.BUILDER.invert()
                 ) )
             ).build() );
     }

src/main/java/dan200/computercraft/data/Recipes.java

@@ -22,7 +22,7 @@ import net.minecraft.advancements.criterion.ItemPredicate;
 import net.minecraft.block.Blocks;
 import net.minecraft.data.*;
 import net.minecraft.item.*;
-import net.minecraft.tags.Tag;
+import net.minecraft.tags.ITag;
 import net.minecraft.util.IItemProvider;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.common.Tags;
@@ -62,7 +62,7 @@ public class Recipes extends RecipeProvider
                 .requires( Items.PAPER )
                 .requires( DyeItem.byColor( ofColour( colour ) ) )
                 .group( "computercraft:disk" )
-                .unlocks( "has_drive", inventoryChange( Registry.ModBlocks.DISK_DRIVE.get() ) )
+                .unlockedBy( "has_drive", inventoryChange( Registry.ModBlocks.DISK_DRIVE.get() ) )
                 .save( RecipeWrapper.wrap(
                     ImpostorShapelessRecipe.SERIALIZER, add,
                     x -> x.putInt( IColouredItem.NBT_COLOUR, colour.getHex() )
@@ -92,7 +92,7 @@ public class Recipes extends RecipeProvider
                     .pattern( "#T" )
                     .define( '#', base.getItem() )
                     .define( 'T', upgrade.getCraftingItem().getItem() )
-                    .unlocks( "has_items",
+                    .unlockedBy( "has_items",
                         inventoryChange( base.getItem(), upgrade.getCraftingItem().getItem() ) )
                     .save(
                         RecipeWrapper.wrap( ImpostorRecipe.SERIALIZER, add, result.getTag() ),
@@ -127,7 +127,7 @@ public class Recipes extends RecipeProvider
                     .pattern( "P" )
                     .define( '#', base.getItem() )
                     .define( 'P', upgrade.getCraftingItem().getItem() )
-                    .unlocks( "has_items",
+                    .unlockedBy( "has_items",
                         inventoryChange( base.getItem(), upgrade.getCraftingItem().getItem() ) )
                     .save(
                         RecipeWrapper.wrap( ImpostorRecipe.SERIALIZER, add, result.getTag() ),
@@ -148,8 +148,8 @@ public class Recipes extends RecipeProvider
             .pattern( " # " )
             .define( '#', Tags.Items.STONE )
             .define( 'R', Tags.Items.DUSTS_REDSTONE )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
-            .unlocks( "has_modem", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_modem", inventoryChange( CCTags.COMPUTER ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -160,7 +160,7 @@ public class Recipes extends RecipeProvider
             .define( '#', Tags.Items.STONE )
             .define( 'R', Tags.Items.DUSTS_REDSTONE )
             .define( 'G', Tags.Items.GLASS_PANES )
-            .unlocks( "has_redstone", inventoryChange( Tags.Items.DUSTS_REDSTONE ) )
+            .unlockedBy( "has_redstone", inventoryChange( Tags.Items.DUSTS_REDSTONE ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -171,7 +171,7 @@ public class Recipes extends RecipeProvider
             .define( '#', Tags.Items.INGOTS_GOLD )
             .define( 'R', Tags.Items.DUSTS_REDSTONE )
             .define( 'G', Tags.Items.GLASS_PANES )
-            .unlocks( "has_components", inventoryChange( Items.REDSTONE, Items.GOLD_INGOT ) )
+            .unlockedBy( "has_components", inventoryChange( Items.REDSTONE, Items.GOLD_INGOT ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -182,7 +182,7 @@ public class Recipes extends RecipeProvider
             .define( '#', Tags.Items.INGOTS_GOLD )
             .define( 'R', Blocks.COMMAND_BLOCK )
             .define( 'G', Tags.Items.GLASS_PANES )
-            .unlocks( "has_components", inventoryChange( Blocks.COMMAND_BLOCK ) )
+            .unlockedBy( "has_components", inventoryChange( Blocks.COMMAND_BLOCK ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -192,7 +192,7 @@ public class Recipes extends RecipeProvider
             .pattern( "#R#" )
             .define( '#', Tags.Items.STONE )
             .define( 'R', Tags.Items.DUSTS_REDSTONE )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -202,7 +202,7 @@ public class Recipes extends RecipeProvider
             .pattern( "###" )
             .define( '#', Tags.Items.STONE )
             .define( 'G', Tags.Items.GLASS_PANES )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -212,7 +212,7 @@ public class Recipes extends RecipeProvider
             .pattern( "###" )
             .define( '#', Tags.Items.INGOTS_GOLD )
             .define( 'G', Tags.Items.GLASS_PANES )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -223,8 +223,8 @@ public class Recipes extends RecipeProvider
             .define( '#', Tags.Items.STONE )
             .define( 'A', Items.GOLDEN_APPLE )
             .define( 'G', Tags.Items.GLASS_PANES )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
-            .unlocks( "has_apple", inventoryChange( Items.GOLDEN_APPLE ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_apple", inventoryChange( Items.GOLDEN_APPLE ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -235,8 +235,8 @@ public class Recipes extends RecipeProvider
             .define( '#', Tags.Items.INGOTS_GOLD )
             .define( 'A', Items.GOLDEN_APPLE )
             .define( 'G', Tags.Items.GLASS_PANES )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
-            .unlocks( "has_apple", inventoryChange( Items.GOLDEN_APPLE ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_apple", inventoryChange( Items.GOLDEN_APPLE ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -247,7 +247,7 @@ public class Recipes extends RecipeProvider
             .define( '#', Tags.Items.STONE )
             .define( 'R', Tags.Items.DUSTS_REDSTONE )
             .define( 'D', Tags.Items.DYES )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -258,7 +258,7 @@ public class Recipes extends RecipeProvider
             .define( '#', Tags.Items.STONE )
             .define( 'N', Blocks.NOTE_BLOCK )
             .define( 'R', Tags.Items.DUSTS_REDSTONE )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -268,19 +268,19 @@ public class Recipes extends RecipeProvider
             .pattern( "###" )
             .define( '#', Tags.Items.STONE )
             .define( 'R', Tags.Items.DUSTS_REDSTONE )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
-            .unlocks( "has_cable", inventoryChange( Registry.ModItems.CABLE.get() ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_cable", inventoryChange( Registry.ModItems.CABLE.get() ) )
             .save( add );
 
         ShapelessRecipeBuilder
             .shapeless( Registry.ModBlocks.WIRED_MODEM_FULL.get() )
             .requires( Registry.ModItems.WIRED_MODEM.get() )
-            .unlocks( "has_modem", inventoryChange( CCTags.WIRED_MODEM ) )
+            .unlockedBy( "has_modem", inventoryChange( CCTags.WIRED_MODEM ) )
             .save( add, new ResourceLocation( ComputerCraft.MOD_ID, "wired_modem_full_from" ) );
         ShapelessRecipeBuilder
             .shapeless( Registry.ModItems.WIRED_MODEM.get() )
             .requires( Registry.ModBlocks.WIRED_MODEM_FULL.get() )
-            .unlocks( "has_modem", inventoryChange( CCTags.WIRED_MODEM ) )
+            .unlockedBy( "has_modem", inventoryChange( CCTags.WIRED_MODEM ) )
             .save( add, new ResourceLocation( ComputerCraft.MOD_ID, "wired_modem_full_to" ) );
 
         ShapedRecipeBuilder
@@ -290,7 +290,7 @@ public class Recipes extends RecipeProvider
             .pattern( "###" )
             .define( '#', Tags.Items.STONE )
             .define( 'E', Tags.Items.ENDER_PEARLS )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
             .save( add );
 
         ShapedRecipeBuilder
@@ -300,8 +300,8 @@ public class Recipes extends RecipeProvider
             .pattern( "###" )
             .define( '#', Tags.Items.INGOTS_GOLD )
             .define( 'E', Items.ENDER_EYE )
-            .unlocks( "has_computer", inventoryChange( CCTags.COMPUTER ) )
-            .unlocks( "has_wireless", inventoryChange( Registry.ModBlocks.WIRELESS_MODEM_NORMAL.get() ) )
+            .unlockedBy( "has_computer", inventoryChange( CCTags.COMPUTER ) )
+            .unlockedBy( "has_wireless", inventoryChange( Registry.ModBlocks.WIRELESS_MODEM_NORMAL.get() ) )
             .save( add );
     }
 
@@ -310,13 +310,13 @@ public class Recipes extends RecipeProvider
         return DyeColor.byId( 15 - colour.ordinal() );
     }
 
-    private static InventoryChangeTrigger.Instance inventoryChange( Tag<Item> stack )
+    private static InventoryChangeTrigger.Instance inventoryChange( ITag<Item> stack )
     {
-        return InventoryChangeTrigger.Instance.hasItem( ItemPredicate.Builder.item().of( stack ).build() );
+        return InventoryChangeTrigger.Instance.hasItems( ItemPredicate.Builder.item().of( stack ).build() );
     }
 
     private static InventoryChangeTrigger.Instance inventoryChange( IItemProvider... stack )
     {
-        return InventoryChangeTrigger.Instance.hasItem( stack );
+        return InventoryChangeTrigger.Instance.hasItems( stack );
     }
 }

src/main/java/dan200/computercraft/data/Tags.java

@@ -7,46 +7,55 @@ package dan200.computercraft.data;
 
 import dan200.computercraft.ComputerCraft;
 import dan200.computercraft.shared.Registry;
+import net.minecraft.data.BlockTagsProvider;
 import net.minecraft.data.DataGenerator;
 import net.minecraft.data.ItemTagsProvider;
 import net.minecraft.item.Item;
+import net.minecraft.tags.ITag;
 import net.minecraft.tags.ItemTags;
-import net.minecraft.tags.Tag;
 import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.common.data.ExistingFileHelper;
 
 import static dan200.computercraft.data.Tags.CCTags.*;
 
 public class Tags extends ItemTagsProvider
 {
+    private static final ITag.INamedTag<Item> PIGLIN_LOVED = ItemTags.PIGLIN_LOVED;
+
     public static class CCTags
     {
-        public static final Tag<Item> COMPUTER = item( "computer" );
-        public static final Tag<Item> TURTLE = item( "turtle" );
-        public static final Tag<Item> WIRED_MODEM = item( "wired_modem" );
-        public static final Tag<Item> MONITOR = item( "monitor" );
+        public static final ITag.INamedTag<Item> COMPUTER = item( "computer" );
+        public static final ITag.INamedTag<Item> TURTLE = item( "turtle" );
+        public static final ITag.INamedTag<Item> WIRED_MODEM = item( "wired_modem" );
+        public static final ITag.INamedTag<Item> MONITOR = item( "monitor" );
     }
 
-    public Tags( DataGenerator generator )
+    public Tags( DataGenerator generator, ExistingFileHelper helper )
     {
-        super( generator );
+        super( generator, new BlockTagsProvider( generator, ComputerCraft.MOD_ID, helper ), ComputerCraft.MOD_ID, helper );
     }
 
     @Override
     protected void addTags()
     {
-        tag( COMPUTER )
-            .add( Registry.ModItems.COMPUTER_NORMAL.get() )
-            .add( Registry.ModItems.COMPUTER_ADVANCED.get() )
-            .add( Registry.ModItems.COMPUTER_COMMAND.get() );
+        tag( COMPUTER ).add(
+            Registry.ModItems.COMPUTER_NORMAL.get(),
+            Registry.ModItems.COMPUTER_ADVANCED.get(),
+            Registry.ModItems.COMPUTER_COMMAND.get()
+        );
         tag( TURTLE ).add( Registry.ModItems.TURTLE_NORMAL.get(), Registry.ModItems.TURTLE_ADVANCED.get() );
         tag( WIRED_MODEM ).add( Registry.ModItems.WIRED_MODEM.get(), Registry.ModItems.WIRED_MODEM_FULL.get() );
-        tag( MONITOR )
-            .add( Registry.ModItems.MONITOR_NORMAL.get() )
-            .add( Registry.ModItems.MONITOR_ADVANCED.get() );
+        tag( MONITOR ).add( Registry.ModItems.MONITOR_NORMAL.get(), Registry.ModItems.MONITOR_ADVANCED.get() );
+
+        tag( PIGLIN_LOVED ).add(
+            Registry.ModItems.COMPUTER_ADVANCED.get(), Registry.ModItems.TURTLE_ADVANCED.get(),
+            Registry.ModItems.WIRELESS_MODEM_ADVANCED.get(), Registry.ModItems.POCKET_COMPUTER_ADVANCED.get(),
+            Registry.ModItems.MONITOR_ADVANCED.get()
+        );
     }
 
-    private static Tag<Item> item( String name )
+    private static ITag.INamedTag<Item> item( String name )
     {
-        return new ItemTags.Wrapper( new ResourceLocation( ComputerCraft.MOD_ID, name ) );
+        return ItemTags.bind( new ResourceLocation( ComputerCraft.MOD_ID, name ).toString() );
     }
 }

src/main/java/dan200/computercraft/shared/Registry.java

@@ -56,6 +56,7 @@ import dan200.computercraft.shared.util.CreativeTabMain;
 import dan200.computercraft.shared.util.FixedPointTileEntityType;
 import dan200.computercraft.shared.util.ImpostorRecipe;
 import dan200.computercraft.shared.util.ImpostorShapelessRecipe;
+import net.minecraft.block.AbstractBlock;
 import net.minecraft.block.Block;
 import net.minecraft.block.material.Material;
 import net.minecraft.entity.EntityClassification;
@@ -92,21 +93,21 @@ public final class Registry
 
     public static final class ModBlocks
     {
-        static final DeferredRegister<Block> BLOCKS = new DeferredRegister<>( ForgeRegistries.BLOCKS, ComputerCraft.MOD_ID );
+        static final DeferredRegister<Block> BLOCKS = DeferredRegister.create( ForgeRegistries.BLOCKS, ComputerCraft.MOD_ID );
 
-        private static Block.Properties properties()
+        private static AbstractBlock.Properties properties()
         {
-            return Block.Properties.of( Material.STONE ).strength( 2 );
+            return AbstractBlock.Properties.of( Material.STONE ).strength( 2 );
         }
 
-        private static Block.Properties turtleProperties()
+        private static AbstractBlock.Properties turtleProperties()
         {
-            return Block.Properties.of( Material.STONE ).strength( 2.5f );
+            return AbstractBlock.Properties.of( Material.STONE ).strength( 2.5f );
         }
 
-        private static Block.Properties modemProperties()
+        private static AbstractBlock.Properties modemProperties()
         {
-            return Block.Properties.of( Material.STONE ).strength( 1.5f );
+            return AbstractBlock.Properties.of( Material.STONE ).strength( 1.5f );
         }
 
         public static final RegistryObject<BlockComputer> COMPUTER_NORMAL = BLOCKS.register( "computer_normal",
@@ -115,7 +116,7 @@ public final class Registry
             () -> new BlockComputer( properties(), ComputerFamily.ADVANCED, ModTiles.COMPUTER_ADVANCED ) );
 
         public static final RegistryObject<BlockComputer> COMPUTER_COMMAND = BLOCKS.register( "computer_command", () -> new BlockComputer(
-            Block.Properties.of( Material.STONE ).strength( -1, 6000000.0F ),
+            AbstractBlock.Properties.of( Material.STONE ).strength( -1, 6000000.0F ),
             ComputerFamily.COMMAND, ModTiles.COMPUTER_COMMAND
         ) );
 
@@ -145,7 +146,7 @@ public final class Registry
 
     public static class ModTiles
     {
-        static final DeferredRegister<TileEntityType<?>> TILES = new DeferredRegister<>( ForgeRegistries.TILE_ENTITIES, ComputerCraft.MOD_ID );
+        static final DeferredRegister<TileEntityType<?>> TILES = DeferredRegister.create( ForgeRegistries.TILE_ENTITIES, ComputerCraft.MOD_ID );
 
         private static <T extends TileEntity> RegistryObject<TileEntityType<T>> ofBlock( RegistryObject<? extends Block> block, Function<TileEntityType<T>, T> factory )
         {
@@ -183,7 +184,7 @@ public final class Registry
 
     public static final class ModItems
     {
-        static final DeferredRegister<Item> ITEMS = new DeferredRegister<>( ForgeRegistries.ITEMS, ComputerCraft.MOD_ID );
+        static final DeferredRegister<Item> ITEMS = DeferredRegister.create( ForgeRegistries.ITEMS, ComputerCraft.MOD_ID );
 
         private static Item.Properties properties()
         {
@@ -245,7 +246,7 @@ public final class Registry
     {
         // Upgrades
         ComputerCraft.TurtleUpgrades.wirelessModemNormal = new TurtleModem( false, new ResourceLocation( ComputerCraft.MOD_ID, "wireless_modem_normal" ) );
-        TurtleUpgrades.register( ComputerCraft.TurtleUpgrades.wirelessModemNormal );
+        ComputerCraftAPI.registerTurtleUpgrade( ComputerCraft.TurtleUpgrades.wirelessModemNormal );
 
         ComputerCraft.TurtleUpgrades.wirelessModemAdvanced = new TurtleModem( true, new ResourceLocation( ComputerCraft.MOD_ID, "wireless_modem_advanced" ) );
         ComputerCraftAPI.registerTurtleUpgrade( ComputerCraft.TurtleUpgrades.wirelessModemAdvanced );
@@ -281,7 +282,7 @@ public final class Registry
 
     public static class ModEntities
     {
-        static final DeferredRegister<EntityType<?>> ENTITIES = new DeferredRegister<>( ForgeRegistries.ENTITIES, ComputerCraft.MOD_ID );
+        static final DeferredRegister<EntityType<?>> ENTITIES = DeferredRegister.create( ForgeRegistries.ENTITIES, ComputerCraft.MOD_ID );
 
         public static final RegistryObject<EntityType<TurtlePlayer>> TURTLE_PLAYER = ENTITIES.register( "turtle_player", () ->
             EntityType.Builder.<TurtlePlayer>createNothing( EntityClassification.MISC )
@@ -293,7 +294,7 @@ public final class Registry
 
     public static class ModContainers
     {
-        static final DeferredRegister<ContainerType<?>> CONTAINERS = new DeferredRegister<>( ForgeRegistries.CONTAINERS, ComputerCraft.MOD_ID );
+        static final DeferredRegister<ContainerType<?>> CONTAINERS = DeferredRegister.create( ForgeRegistries.CONTAINERS, ComputerCraft.MOD_ID );
 
         public static final RegistryObject<ContainerType<ContainerComputer>> COMPUTER = CONTAINERS.register( "computer",
             () -> ContainerData.toType( ComputerContainerData::new, ContainerComputer::new ) );

src/main/java/dan200/computercraft/shared/TurtlePermissions.java

@@ -11,6 +11,7 @@ import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.World;
+import net.minecraft.world.server.ServerWorld;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
 
@@ -20,13 +21,12 @@ public final class TurtlePermissions
     public static boolean isBlockEnterable( World world, BlockPos pos, PlayerEntity player )
     {
         MinecraftServer server = world.getServer();
-        return server == null || world.isClientSide || !server.isUnderSpawnProtection( world, pos, player );
+        return server == null || world.isClientSide || (world instanceof ServerWorld && !server.isUnderSpawnProtection( (ServerWorld) world, pos, player ));
     }
 
     public static boolean isBlockEditable( World world, BlockPos pos, PlayerEntity player )
     {
-        MinecraftServer server = world.getServer();
-        return server == null || world.isClientSide || !server.isUnderSpawnProtection( world, pos, player );
+        return isBlockEnterable( world, pos, player );
     }
 
     @SubscribeEvent

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

@@ -30,6 +30,7 @@ import net.minecraft.inventory.container.Container;
 import net.minecraft.inventory.container.INamedContainerProvider;
 import net.minecraft.network.play.server.SPlayerPositionLookPacket;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.text.IFormattableTextComponent;
 import net.minecraft.util.text.ITextComponent;
 import net.minecraft.util.text.StringTextComponent;
 import net.minecraft.util.text.TranslationTextComponent;
@@ -283,7 +284,7 @@ public final class CommandComputerCraft
 
     private static ITextComponent linkComputer( CommandSource source, ServerComputer serverComputer, int computerId )
     {
-        ITextComponent out = new StringTextComponent( "" );
+        IFormattableTextComponent out = new StringTextComponent( "" );
 
         // Append the computer instance
         if( serverComputer == null )

src/main/java/dan200/computercraft/shared/command/CommandCopy.java

@@ -12,6 +12,7 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.command.CommandSource;
 import net.minecraft.util.text.ITextComponent;
 import net.minecraft.util.text.StringTextComponent;
+import net.minecraft.util.text.Style;
 import net.minecraft.util.text.TranslationTextComponent;
 import net.minecraft.util.text.event.ClickEvent;
 import net.minecraft.util.text.event.HoverEvent;
@@ -57,10 +58,8 @@ public final class CommandCopy
 
     public static ITextComponent createCopyText( String text )
     {
-        StringTextComponent name = new StringTextComponent( text );
-        name.getStyle()
-            .setClickEvent( new ClickEvent( ClickEvent.Action.RUN_COMMAND, PREFIX + text ) )
-            .setHoverEvent( new HoverEvent( HoverEvent.Action.SHOW_TEXT, new TranslationTextComponent( "gui.computercraft.tooltip.copy" ) ) );
-        return name;
+        return new StringTextComponent( text ).withStyle( Style.EMPTY
+            .withClickEvent( new ClickEvent( ClickEvent.Action.RUN_COMMAND, PREFIX + text ) )
+            .withHoverEvent( new HoverEvent( HoverEvent.Action.SHOW_TEXT, new TranslationTextComponent( "gui.computercraft.tooltip.copy" ) ) ) );
     }
 }

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

@@ -13,6 +13,7 @@ import com.mojang.brigadier.context.CommandContext;
 import com.mojang.brigadier.tree.CommandNode;
 import com.mojang.brigadier.tree.LiteralCommandNode;
 import net.minecraft.command.CommandSource;
+import net.minecraft.util.text.IFormattableTextComponent;
 import net.minecraft.util.text.ITextComponent;
 import net.minecraft.util.text.StringTextComponent;
 import net.minecraft.util.text.TextFormatting;
@@ -173,7 +174,7 @@ public final class HelpingArgumentBuilder extends LiteralArgumentBuilder<Command
         temp.addChild( node );
         String usage = dispatcher.getSmartUsage( temp, context.getSource() ).get( node ).substring( node.getName().length() );
 
-        ITextComponent output = new StringTextComponent( "" )
+        IFormattableTextComponent output = new StringTextComponent( "" )
             .append( coloured( "/" + command + usage, HEADER ) )
             .append( " " )
             .append( coloured( translate( "commands." + id + ".synopsis" ), SYNOPSIS ) )
@@ -189,8 +190,8 @@ public final class HelpingArgumentBuilder extends LiteralArgumentBuilder<Command
 
             output.append( "\n" );
 
-            ITextComponent component = coloured( child.getName(), NAME );
-            component.getStyle().setClickEvent( new ClickEvent(
+            IFormattableTextComponent component = coloured( child.getName(), NAME );
+            component.getStyle().withClickEvent( new ClickEvent(
                 ClickEvent.Action.SUGGEST_COMMAND,
                 "/" + command + " " + child.getName()
             ) );

src/main/java/dan200/computercraft/shared/command/text/ChatHelpers.java

@@ -19,37 +19,35 @@ public final class ChatHelpers
 
     private ChatHelpers() {}
 
-    public static ITextComponent coloured( String text, TextFormatting colour )
+    public static IFormattableTextComponent coloured( String text, TextFormatting colour )
     {
-        ITextComponent component = new StringTextComponent( text == null ? "" : text );
-        component.getStyle().setColor( colour );
+        return new StringTextComponent( text == null ? "" : text ).withStyle( colour );
+    }
+
+    public static <T extends IFormattableTextComponent> T coloured( T component, TextFormatting colour )
+    {
+        component.withStyle( colour );
         return component;
     }
 
-    public static <T extends ITextComponent> T coloured( T component, TextFormatting colour )
-    {
-        component.getStyle().setColor( colour );
-        return component;
-    }
-
-    public static ITextComponent text( String text )
+    public static IFormattableTextComponent text( String text )
     {
         return new StringTextComponent( text == null ? "" : text );
     }
 
-    public static ITextComponent translate( String text )
+    public static IFormattableTextComponent translate( String text )
     {
         return new TranslationTextComponent( text == null ? "" : text );
     }
 
-    public static ITextComponent translate( String text, Object... args )
+    public static IFormattableTextComponent translate( String text, Object... args )
     {
         return new TranslationTextComponent( text == null ? "" : text, args );
     }
 
-    public static ITextComponent list( ITextComponent... children )
+    public static IFormattableTextComponent list( ITextComponent... children )
     {
-        ITextComponent component = new StringTextComponent( "" );
+        IFormattableTextComponent component = new StringTextComponent( "" );
         for( ITextComponent child : children )
         {
             component.append( child );
@@ -57,31 +55,31 @@ public final class ChatHelpers
         return component;
     }
 
-    public static ITextComponent position( BlockPos pos )
+    public static IFormattableTextComponent position( BlockPos pos )
     {
         if( pos == null ) return translate( "commands.computercraft.generic.no_position" );
         return translate( "commands.computercraft.generic.position", pos.getX(), pos.getY(), pos.getZ() );
     }
 
-    public static ITextComponent bool( boolean value )
+    public static IFormattableTextComponent bool( boolean value )
     {
         return value
             ? coloured( translate( "commands.computercraft.generic.yes" ), TextFormatting.GREEN )
             : coloured( translate( "commands.computercraft.generic.no" ), TextFormatting.RED );
     }
 
-    public static ITextComponent link( ITextComponent component, String command, ITextComponent toolTip )
+    public static IFormattableTextComponent link( IFormattableTextComponent component, String command, ITextComponent toolTip )
     {
         Style style = component.getStyle();
 
-        if( style.getColor() == null ) style.setColor( TextFormatting.YELLOW );
-        style.setClickEvent( new ClickEvent( ClickEvent.Action.RUN_COMMAND, command ) );
-        style.setHoverEvent( new HoverEvent( HoverEvent.Action.SHOW_TEXT, toolTip ) );
+        if( style.getColor() == null ) style = style.withColor( TextFormatting.YELLOW );
+        style = style.withClickEvent( new ClickEvent( ClickEvent.Action.RUN_COMMAND, command ) );
+        style = style.withHoverEvent( new HoverEvent( HoverEvent.Action.SHOW_TEXT, toolTip ) );
 
-        return component;
+        return component.setStyle( style );
     }
 
-    public static ITextComponent header( String text )
+    public static IFormattableTextComponent header( String text )
     {
         return coloured( text, HEADER );
     }

src/main/java/dan200/computercraft/shared/common/ColourableRecipe.java

@@ -79,7 +79,10 @@ public final class ColourableRecipe extends SpecialRecipe
         }
 
         if( colourable.isEmpty() ) return ItemStack.EMPTY;
-        return ((IColouredItem) colourable.getItem()).withColour( colourable, tracker.getColour() );
+
+        ItemStack stack = ((IColouredItem) colourable.getItem()).withColour( colourable, tracker.getColour() );
+        stack.setCount( 1 );
+        return stack;
     }
 
     @Override