add skeleton code

this should be the least common code for all the branches I work on...

21 files changed, 1203 insertions, 285 deletions

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000..9917fc4abe
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,35 @@
+* text eol=lf
+
+*.jar      binary
+
+*.png      binary
+*.jpg      binary
+*.jpeg     binary
+*.gif      binary
+*.tif      binary
+*.tiff     binary
+*.ico      binary
+*.svg      text
+*.eps      binary
+
+*.kar      binary
+*.m4a      binary
+*.mid      binary
+*.midi     binary
+*.mp3      binary
+*.ogg      binary
+*.ra       binary
+
+*.7z       binary
+*.gz       binary
+*.tar      binary
+*.tgz      binary
+*.zip      binary
+
+*.patch    -text
+
+*.bat      text eol=crlf
+*.cmd      text eol=crlf
+*.ps1      text eol=crlf
+
+*autogenerated binary
\ No newline at end of file
diff --git a/.github/scripts/test-no-crash-reports.sh b/.github/scripts/test-no-crash-reports.sh
deleted file mode 100644
index c67e342c06..0000000000
--- a/.github/scripts/test-no-crash-reports.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-directory="run/crash-reports"
-if [ -d $directory ]; then
-  echo "Crash reports detected:"
-  cat $directory/*
-  exit 1
-else
-  echo "No crash reports detected"
-  exit 0
-fi
diff --git a/.github/test-scala-presence.toml b/.github/test-scala-presence.toml
new file mode 100644
index 0000000000..ae0e9acd49
--- /dev/null
+++ b/.github/test-scala-presence.toml
@@ -0,0 +1,2 @@
+[exclude]
+"src/main/java/**/*.java" = "import scala."
\ No newline at end of file
diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 6c9b3cbc6c..3ee2f686fd 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -1,5 +1,3 @@
-# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
 
 name: Build and test
 
@@ -11,35 +9,5 @@ on:
 
 jobs:
   build-and-test:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-      with: 
-        fetch-depth: 0
-    
-    - name: Set up JDK 8
-      uses: actions/setup-java@v2
-      with:
-        java-version: '8'
-        distribution: 'adopt'
-        cache: gradle
-        
-    - name: Grant execute permission for gradlew
-      run: chmod +x gradlew
-
-    - name: Setup the workspace
-      run: ./gradlew setupCIWorkspace
-    
-    - name: Build the mod
-      run: ./gradlew build
-
-    - name: Run server for 1 minute
-      run: |
-        mkdir run
-        echo "eula=true" > run/eula.txt  
-        timeout 10 ./gradlew runServer || true
-
-    - name: Test no crashes happend
-      run: |
-        chmod +x .github/scripts/test-no-crash-reports.sh
-        .github/scripts/test-no-crash-reports.sh
+    uses: GTNewHorizons/GTNH-Actions-Workflows/.github/workflows/build-and-test.yml@master
+    secrets: inherit
diff --git a/.github/workflows/release-latest.yml b/.github/workflows/release-latest.yml
deleted file mode 100644
index 5ecccc044f..0000000000
--- a/.github/workflows/release-latest.yml
+++ /dev/null
@@ -1,44 +0,0 @@
-# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
-
-name: Release latest build
-
-on:
-  push:
-    branches: [ master, main ]
-
-jobs:
-  build-and-release:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-
-      - name: Set release version
-        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-
-      - name: Set up JDK 8
-        uses: actions/setup-java@v2
-        with:
-          java-version: '8'
-          distribution: 'adopt'
-          cache: gradle
-
-      - name: Grant execute permission for gradlew
-        run: chmod +x gradlew
-
-      - name: Setup the workspace
-        run: ./gradlew setupCIWorkspace
-
-      - name: Build the mod
-        run: ./gradlew build
-
-      - name: Update latest tag
-        uses: "marvinpinto/action-automatic-releases@latest"
-        with:
-          repo_token: "${{ secrets.GITHUB_TOKEN }}"
-          automatic_release_tag: "latest"
-          prerelease: false
-          title: "Latest build"
-          files: build/libs/*.jar
diff --git a/.github/workflows/release-tags.yml b/.github/workflows/release-tags.yml
index 25c354b227..e4c0be6b0d 100644
--- a/.github/workflows/release-tags.yml
+++ b/.github/workflows/release-tags.yml
@@ -1,45 +1,14 @@
-# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
 
 name: Release tagged build
 
 on:
   push:
-    tags:
-      - '*'
+    tags: [ '*' ]
 
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-
-      - name: Set release version
-        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-
-      - name: Set up JDK 8
-        uses: actions/setup-java@v2
-        with:
-          java-version: '8'
-          distribution: 'adopt'
-          cache: gradle
-
-      - name: Grant execute permission for gradlew
-        run: chmod +x gradlew
+permissions:
+  contents: write
 
-      - name: Setup the workspace
-        run: ./gradlew setupCIWorkspace
-
-      - name: Build the mod
-        run: ./gradlew build
-
-      - name: Release under current tag
-        uses: "marvinpinto/action-automatic-releases@latest"
-        with:
-          repo_token: "${{ secrets.GITHUB_TOKEN }}"
-          automatic_release_tag: "${{ env.RELEASE_VERSION }}"
-          prerelease: false
-          title: "${{ env.RELEASE_VERSION }}"
-          files: build/libs/*.jar
+jobs:
+  release-tags:
+    uses: GTNewHorizons/GTNH-Actions-Workflows/.github/workflows/release-tags.yml@master
+    secrets: inherit
diff --git a/.github/workflows/test-scala-presence.yml b/.github/workflows/test-scala-presence.yml
new file mode 100644
index 0000000000..6b1091e1fd
--- /dev/null
+++ b/.github/workflows/test-scala-presence.yml
@@ -0,0 +1,18 @@
+name: Test Scala Presence
+
+on:
+  pull_request:
+    branches: [ master, main ]
+  push:
+    branches: [ master, main ]
+
+jobs:
+  test-scala-presence:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Check file content
+        uses: mattsb42-meta/not-grep@1.0.0
+        with:
+          config-file: ./.github/test-scala-presence.toml
diff --git a/.github/workflows/toolchain-compatibility.yml b/.github/workflows/toolchain-compatibility.yml
deleted file mode 100644
index a082bf33ab..0000000000
--- a/.github/workflows/toolchain-compatibility.yml
+++ /dev/null
@@ -1,43 +0,0 @@
-# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
-
-name: Check if toolchain is applied when using differnt java versions
-
-on:
-  pull_request:
-    branches: [ master, main ]
-
-jobs:
-  check-compatibility-with-java-11:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-      with: 
-        fetch-depth: 0
-    
-    - name: Set up JDK 11
-      uses: actions/setup-java@v2
-      with:
-        java-version: '11'
-        distribution: 'adopt'
-        cache: gradle
-        
-    - name: Grant execute permission for gradlew
-      run: chmod +x gradlew
-
-    - name: Setup the workspace
-      run: ./gradlew setupCIWorkspace
-    
-    - name: Build the mod
-      run: ./gradlew build
-    
-    - name: Run server for 1 minute
-      run: |
-        mkdir run
-        echo "eula=true" > run/eula.txt  
-        timeout 10 ./gradlew runServer || true
-
-    - name: Test no crashes happend
-      run: |
-        chmod +x .github/scripts/test-no-crash-reports.sh
-        .github/scripts/test-no-crash-reports.sh
diff --git a/README.md b/README.md
new file mode 100644
index 0000000000..4e1db508e7
--- /dev/null
+++ b/README.md
@@ -0,0 +1,6 @@
+# GGFab
+
+THIS MOD DOES NOT HAVE AN API. EVERYTHING IS SUBJECT TO CHANGE WITHOUT NOTICE! DO NOT PROGRAM AGAINST ME!
+
+An API is planned, use patience! 
+However, IDs and names would probably keep the same.
\ No newline at end of file
diff --git a/addon.gradle b/addon.gradle
new file mode 100644
index 0000000000..e879a8b814
--- /dev/null
+++ b/addon.gradle
@@ -0,0 +1,7 @@
+idea {
+    module {
+        inheritOutputDirs = false
+        outputDir = compileJava.destinationDir
+        testOutputDir = compileTestJava.destinationDir
+    }
+}
diff --git a/build.gradle b/build.gradle
index 89bbf22205..997b94dc30 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,34 +1,82 @@
+//version: 1661114848
+/*
+ DO NOT CHANGE THIS FILE!
+ Also, you may replace this file at any time if there is an update available.
+ Please check https://github.com/GTNewHorizons/ExampleMod1.7.10/blob/main/build.gradle for updates.
+ */
+
+
+import com.github.jengelman.gradle.plugins.shadow.tasks.ConfigureShadowRelocation
+import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+import org.gradle.internal.logging.text.StyledTextOutput.Style
+import org.gradle.internal.logging.text.StyledTextOutputFactory
+
+import java.nio.file.Files
+import java.nio.file.Paths
 import java.util.concurrent.TimeUnit
+import java.util.zip.ZipEntry
+import java.util.zip.ZipInputStream
+import java.util.zip.ZipOutputStream
 
 buildscript {
     repositories {
+        mavenCentral()
+
         maven {
-            name = "forge"
-            url = "https://maven.minecraftforge.net"
+            name 'forge'
+            url 'https://maven.minecraftforge.net'
         }
         maven {
-            name = "sonatype"
-            url = "https://oss.sonatype.org/content/repositories/snapshots/"
+            // GTNH ForgeGradle Fork
+            name = "GTNH Maven"
+            url = "http://jenkins.usrv.eu:8081/nexus/content/groups/public/"
         }
         maven {
-            name = "Scala CI dependencies"
-            url = "https://repo1.maven.org/maven2/"
+            name 'sonatype'
+            url 'https://oss.sonatype.org/content/repositories/snapshots/'
         }
         maven {
-            name = "jitpack"
-            url = "https://jitpack.io"
+            name 'Scala CI dependencies'
+            url 'https://repo1.maven.org/maven2/'
         }
     }
     dependencies {
-        classpath 'com.github.GTNewHorizons:ForgeGradle:1.2.4'
+        classpath 'net.minecraftforge.gradle:ForgeGradle:1.2.9'
     }
 }
-
 plugins {
-    id("com.palantir.git-version") version("0.12.3")
-    id("se.bjurr.gitchangelog.git-changelog-gradle-plugin") version("1.65")
+    id 'java-library'
+    id 'idea'
+    id 'eclipse'
+    id 'scala'
+    id 'maven-publish'
+    id 'org.jetbrains.kotlin.jvm' version '1.5.30' apply false
+    id 'org.jetbrains.kotlin.kapt' version '1.5.30' apply false
+    id 'com.google.devtools.ksp' version '1.5.30-1.0.0' apply false
+    id 'org.ajoberstar.grgit' version '4.1.1'
+    id 'com.github.johnrengelman.shadow' version '4.0.4'
+    id 'com.palantir.git-version' version '0.13.0' apply false
+    id 'de.undercouch.download' version '5.0.1'
+    id 'com.github.gmazzo.buildconfig' version '3.0.3' apply false
+    id 'com.diffplug.spotless' version '6.7.2' apply false
+}
+boolean settingsupdated = verifySettingsGradle()
+settingsupdated = verifyGitAttributes() || settingsupdated
+if (settingsupdated)
+    throw new GradleException("Settings has been updated, please re-run task.")
+
+dependencies {
+    implementation 'com.diffplug:blowdryer:1.6.0'
 }
 
+apply plugin: 'com.diffplug.blowdryer'
+
+if (project.file('.git/HEAD').isFile()) {
+    apply plugin: 'com.palantir.git-version'
+}
+
+def out = services.get(StyledTextOutputFactory).create('an-output')
+
 apply plugin: 'forge'
 
 def projectJavaVersion = JavaLanguageVersion.of(8)
@@ -41,11 +89,104 @@ java {
 
 idea {
     module {
-        inheritOutputDirs = false
+        inheritOutputDirs = true
         downloadJavadoc = true
         downloadSources = true
-        outputDir = compileJava.destinationDir
-        testOutputDir = compileTestJava.destinationDir
+    }
+}
+
+boolean disableSpotless = project.hasProperty("disableSpotless") ? project.disableSpotless.toBoolean() : false
+
+if (!disableSpotless) {
+    apply plugin: 'com.diffplug.spotless'
+    apply from: Blowdryer.file('spotless.gradle')
+}
+
+if (JavaVersion.current() != JavaVersion.VERSION_1_8) {
+    throw new GradleException("This project requires Java 8, but it's running on " + JavaVersion.current())
+}
+
+checkPropertyExists("modName")
+checkPropertyExists("modId")
+checkPropertyExists("modGroup")
+checkPropertyExists("autoUpdateBuildScript")
+checkPropertyExists("minecraftVersion")
+checkPropertyExists("forgeVersion")
+checkPropertyExists("replaceGradleTokenInFile")
+checkPropertyExists("gradleTokenModId")
+checkPropertyExists("gradleTokenModName")
+checkPropertyExists("gradleTokenVersion")
+checkPropertyExists("gradleTokenGroupName")
+checkPropertyExists("apiPackage")
+checkPropertyExists("accessTransformersFile")
+checkPropertyExists("usesMixins")
+checkPropertyExists("mixinPlugin")
+checkPropertyExists("mixinsPackage")
+checkPropertyExists("coreModClass")
+checkPropertyExists("containsMixinsAndOrCoreModOnly")
+checkPropertyExists("usesShadowedDependencies")
+checkPropertyExists("developmentEnvironmentUserName")
+
+boolean noPublishedSources = project.hasProperty("noPublishedSources") ? project.noPublishedSources.toBoolean() : false
+boolean usesMixinDebug = project.hasProperty('usesMixinDebug') ?: project.usesMixins.toBoolean()
+boolean forceEnableMixins = project.hasProperty('forceEnableMixins') ? project.forceEnableMixins.toBoolean() : false
+String channel = project.hasProperty('channel') ? project.channel : 'stable'
+String mappingsVersion = project.hasProperty('mappingsVersion') ? project.mappingsVersion : '12'
+String javaSourceDir = "src/main/java/"
+String scalaSourceDir = "src/main/scala/"
+String kotlinSourceDir = "src/main/kotlin/"
+
+String targetPackageJava = javaSourceDir + modGroup.toString().replaceAll("\\.", "/")
+String targetPackageScala = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/")
+String targetPackageKotlin = kotlinSourceDir + modGroup.toString().replaceAll("\\.", "/")
+if (!(getFile(targetPackageJava).exists() || getFile(targetPackageScala).exists() || getFile(targetPackageKotlin).exists())) {
+    throw new GradleException("Could not resolve \"modGroup\"! Could not find " + targetPackageJava + " or " + targetPackageScala + " or " + targetPackageKotlin)
+}
+
+if (apiPackage) {
+    targetPackageJava = javaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + apiPackage.toString().replaceAll("\\.", "/")
+    targetPackageScala = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + apiPackage.toString().replaceAll("\\.", "/")
+    targetPackageKotlin = kotlinSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + apiPackage.toString().replaceAll("\\.", "/")
+    if (!(getFile(targetPackageJava).exists() || getFile(targetPackageScala).exists() || getFile(targetPackageKotlin).exists())) {
+        throw new GradleException("Could not resolve \"apiPackage\"! Could not find " + targetPackageJava + " or " + targetPackageScala + " or " + targetPackageKotlin)
+    }
+}
+
+if (accessTransformersFile) {
+    String targetFile = "src/main/resources/META-INF/" + accessTransformersFile
+    if (!getFile(targetFile).exists()) {
+        throw new GradleException("Could not resolve \"accessTransformersFile\"! Could not find " + targetFile)
+    }
+}
+
+if (usesMixins.toBoolean()) {
+    if (mixinsPackage.isEmpty() || mixinPlugin.isEmpty()) {
+        throw new GradleException("\"mixinPlugin\" requires \"mixinsPackage\" and \"mixinPlugin\" to be set!")
+    }
+
+    targetPackageJava = javaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinsPackage.toString().replaceAll("\\.", "/")
+    targetPackageScala = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinsPackage.toString().replaceAll("\\.", "/")
+    targetPackageKotlin = kotlinSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinsPackage.toString().replaceAll("\\.", "/")
+    if (!(getFile(targetPackageJava).exists() || getFile(targetPackageScala).exists() || getFile(targetPackageKotlin).exists())) {
+        throw new GradleException("Could not resolve \"mixinsPackage\"! Could not find " + targetPackageJava + " or " + targetPackageScala + " or " + targetPackageKotlin)
+    }
+
+    String targetFileJava = javaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinPlugin.toString().replaceAll("\\.", "/") + ".java"
+    String targetFileScala = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinPlugin.toString().replaceAll("\\.", "/") + ".scala"
+    String targetFileScalaJava = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinPlugin.toString().replaceAll("\\.", "/") + ".java"
+    String targetFileKotlin = kotlinSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinPlugin.toString().replaceAll("\\.", "/") + ".kt"
+    if (!(getFile(targetFileJava).exists() || getFile(targetFileScala).exists() || getFile(targetFileScalaJava).exists() || getFile(targetFileKotlin).exists())) {
+        throw new GradleException("Could not resolve \"mixinPlugin\"! Could not find " + targetFileJava + " or " + targetFileScala + " or " + targetFileScalaJava + " or " + targetFileKotlin)
+    }
+}
+
+if (coreModClass) {
+    String targetFileJava = javaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + coreModClass.toString().replaceAll("\\.", "/") + ".java"
+    String targetFileScala = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + coreModClass.toString().replaceAll("\\.", "/") + ".scala"
+    String targetFileScalaJava = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + coreModClass.toString().replaceAll("\\.", "/") + ".java"
+    String targetFileKotlin = kotlinSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + coreModClass.toString().replaceAll("\\.", "/") + ".kt"
+    if (!(getFile(targetFileJava).exists() || getFile(targetFileScala).exists() || getFile(targetFileScalaJava).exists() || getFile(targetFileKotlin).exists())) {
+        throw new GradleException("Could not resolve \"coreModClass\"! Could not find " + targetFileJava + " or " + targetFileScala + " or " + targetFileScalaJava + " or " + targetFileKotlin)
     }
 }
 
@@ -58,84 +199,255 @@ configurations.all {
 }
 
 // Fix Jenkins' Git: chmod a file should not be detected as a change and append a '.dirty' to the version
-'git config core.fileMode false'.execute()
-// Pulls version from git tag
-version = minecraftVersion + "-" + gitVersion()
+try {
+    'git config core.fileMode false'.execute()
+}
+catch (Exception ignored) {
+    out.style(Style.Failure).println("git isn't installed at all")
+}
+
+// Pulls version first from the VERSION env and then git tag
+String identifiedVersion
+String versionOverride = System.getenv("VERSION") ?: null
+try {
+    identifiedVersion = versionOverride == null ? gitVersion() : versionOverride
+}
+catch (Exception ignored) {
+    out.style(Style.Failure).text(
+        'This mod must be version controlled by Git AND the repository must provide at least one tag,\n' +
+            'or the VERSION override must be set! ').style(Style.SuccessHeader).text('(Do NOT download from GitHub using the ZIP option, instead\n' +
+        'clone the repository, see ').style(Style.Info).text('https://gtnh.miraheze.org/wiki/Development').style(Style.SuccessHeader).println(' for details.)'
+    )
+    versionOverride = 'NO-GIT-TAG-SET'
+    identifiedVersion = versionOverride
+}
+version = minecraftVersion + '-' + identifiedVersion
+ext {
+    modVersion = identifiedVersion
+}
+
+if (identifiedVersion == versionOverride) {
+    out.style(Style.Failure).text('Override version to ').style(Style.Identifier).text(modVersion).style(Style.Failure).println('!\7')
+}
+
 group = modGroup
-archivesBaseName = modId
+if (project.hasProperty("customArchiveBaseName") && customArchiveBaseName) {
+    archivesBaseName = customArchiveBaseName
+} else {
+    archivesBaseName = modId
+}
+
+def arguments = []
+def jvmArguments = []
+
+if (usesMixins.toBoolean() || forceEnableMixins) {
+    arguments += [
+        "--tweakClass org.spongepowered.asm.launch.MixinTweaker"
+    ]
+    if (usesMixinDebug.toBoolean()) {
+        jvmArguments += [
+            "-Dmixin.debug.countInjections=true",
+            "-Dmixin.debug.verbose=true",
+            "-Dmixin.debug.export=true"
+        ]
+    }
+}
 
 minecraft {
-    version = minecraftVersion + "-" + forgeVersion + "-" + minecraftVersion
-    runDir = "run"
+    version = minecraftVersion + '-' + forgeVersion + '-' + minecraftVersion
+    runDir = 'run'
+
+    if (replaceGradleTokenInFile) {
+        replaceIn replaceGradleTokenInFile
+        if (gradleTokenModId) {
+            replace gradleTokenModId, modId
+        }
+        if (gradleTokenModName) {
+            replace gradleTokenModName, modName
+        }
+        if (gradleTokenVersion) {
+            replace gradleTokenVersion, modVersion
+        }
+        if (gradleTokenGroupName) {
+            replace gradleTokenGroupName, modGroup
+        }
+    }
+
+    clientIntellijRun {
+        args(arguments)
+        jvmArgs(jvmArguments)
+
+        if (developmentEnvironmentUserName) {
+            args("--username", developmentEnvironmentUserName)
+        }
+    }
+
+    serverIntellijRun {
+        args(arguments)
+        jvmArgs(jvmArguments)
+    }
+}
 
-    replaceIn "GigaGramFab.java"
-    replace '${version}', versionDetails().lastTag
+if (file('addon.gradle').exists()) {
+    apply from: 'addon.gradle'
 }
 
-if(file("addon.gradle").exists()) {
-    apply from: "addon.gradle"
+apply from: 'repositories.gradle'
+
+configurations {
+    implementation.extendsFrom(shadowImplementation)  // TODO: remove after all uses are refactored
+    implementation.extendsFrom(shadowCompile)
+    implementation.extendsFrom(shadeCompile)
 }
 
 repositories {
     maven {
-        name = "Overmind forge repo mirror"
-        url = "https://gregtech.overminddl1.com/"
+        name 'Overmind forge repo mirror'
+        url 'https://gregtech.overminddl1.com/'
     }
-    maven {
-        name = "jitpack"
-        url = "https://jitpack.io"
-        content {
-            includeGroupByRegex 'com\\.github\\.[^.]*'
+    if (usesMixins.toBoolean() || forceEnableMixins) {
+        maven {
+            name 'sponge'
+            url 'https://repo.spongepowered.org/repository/maven-public'
+        }
+        maven {
+            url 'https://jitpack.io'
         }
     }
-    maven {
-        name = "ic2"
-        url = "https://maven.ic2.player.to/"
-        content {
-            includeGroup 'net.industrial-craft'
+}
+
+dependencies {
+    if (usesMixins.toBoolean()) {
+        annotationProcessor('org.ow2.asm:asm-debug-all:5.0.3')
+        annotationProcessor('com.google.guava:guava:24.1.1-jre')
+        annotationProcessor('com.google.code.gson:gson:2.8.6')
+        annotationProcessor('org.spongepowered:mixin:0.8-SNAPSHOT')
+    }
+    if (usesMixins.toBoolean() || forceEnableMixins) {
+        // using 0.8 to workaround a issue in 0.7 which fails mixin application
+        compile('com.github.GTNewHorizons:SpongePoweredMixin:0.7.12-GTNH') {
+            // Mixin includes a lot of dependencies that are too up-to-date
+            exclude module: 'launchwrapper'
+            exclude module: 'guava'
+            exclude module: 'gson'
+            exclude module: 'commons-io'
+            exclude module: 'log4j-core'
         }
-        metadataSources {
-            artifact()
+        compile('com.github.GTNewHorizons:SpongeMixins:1.5.0')
+    }
+}
+
+apply from: 'dependencies.gradle'
+
+def mixingConfigRefMap = 'mixins.' + modId + '.refmap.json'
+def refMap = "${tasks.compileJava.temporaryDir}" + File.separator + mixingConfigRefMap
+def mixinSrg = "${tasks.reobf.temporaryDir}" + File.separator + "mixins.srg"
+
+task generateAssets {
+    if (usesMixins.toBoolean()) {
+        def mixinConfigFile = getFile("/src/main/resources/mixins." + modId + ".json");
+        if (!mixinConfigFile.exists()) {
+            mixinConfigFile.text = """{
+  "required": true,
+  "minVersion": "0.7.11",
+  "package": "${modGroup}.${mixinsPackage}",
+  "plugin": "${modGroup}.${mixinPlugin}",
+  "refmap": "${mixingConfigRefMap}",
+  "target": "@env(DEFAULT)",
+  "compatibilityLevel": "JAVA_8",
+  "mixins": [],
+  "client": [],
+  "server": []
+}
+"""
         }
     }
 }
 
-dependencies {
-    compile "net.industrial-craft:industrialcraft-2:2.2.790-experimental:dev"
-    compile "com.github.GTNewHorizons:StructureLib:1.0.11:dev"
-    compile("com.github.GTNewHorizons:GT5-Unofficial:experimental-SNAPSHOT") {
-        transitive = false
+task relocateShadowJar(type: ConfigureShadowRelocation) {
+    target = tasks.shadowJar
+    prefix = modGroup + ".shadow"
+}
+
+shadowJar {
+    project.configurations.shadeCompile.each { dep ->
+        from(project.zipTree(dep)) {
+            exclude 'META-INF', 'META-INF/**'
+        }
+    }
+
+    manifest {
+        attributes(getManifestAttributes())
     }
 
-    runtimeOnly "com.github.GTNewHorizons:CodeChickenLib:1.1.4:dev"
-    runtimeOnly "com.github.GTNewHorizons:CodeChickenCore:1.0.9:dev"
-    runtimeOnly "com.github.GTNewHorizons:NotEnoughItems:2.1.16-GTNH:dev"
+    minimize()  // This will only allow shading for actually used classes
+    configurations = [
+        project.configurations.shadowImplementation,
+        project.configurations.shadowCompile
+    ]
+    dependsOn(relocateShadowJar)
 }
 
 jar {
+    project.configurations.shadeCompile.each { dep ->
+        from(project.zipTree(dep)) {
+            exclude 'META-INF', 'META-INF/**'
+        }
+    }
+
     manifest {
         attributes(getManifestAttributes())
     }
+
+    if (usesShadowedDependencies.toBoolean()) {
+        dependsOn(shadowJar)
+        enabled = false
+    }
 }
 
-runClient {
-    def arguments = []
+reobf {
+    if (usesMixins.toBoolean()) {
+        addExtraSrgFile mixinSrg
+    }
+}
+
+afterEvaluate {
+    if (usesMixins.toBoolean()) {
+        tasks.compileJava {
+            options.compilerArgs += [
+                "-AreobfSrgFile=${tasks.reobf.srg}",
+                "-AoutSrgFile=${mixinSrg}",
+                "-AoutRefMapFile=${refMap}",
+                // Elan: from what I understand they are just some linter configs so you get some warning on how to properly code
+                "-XDenableSunApiLintControl",
+                "-XDignore.symbol.file"
+            ]
+        }
+    }
+}
 
-    if(developmentEnvironmentUserName) {
+runClient {
+    if (developmentEnvironmentUserName) {
         arguments += [
-                "--username",
-                developmentEnvironmentUserName
+            "--username",
+            developmentEnvironmentUserName
         ]
     }
 
     args(arguments)
+    jvmArgs(jvmArguments)
+}
+
+runServer {
+    args(arguments)
+    jvmArgs(jvmArguments)
 }
 
 tasks.withType(JavaExec).configureEach {
     javaLauncher.set(
-            javaToolchains.launcherFor {
-                languageVersion = projectJavaVersion
-            }
+        javaToolchains.launcherFor {
+            languageVersion = projectJavaVersion
+        }
     )
 }
 
@@ -143,54 +455,122 @@ processResources {
     // this will ensure that this task is redone when the versions change.
     inputs.property "version", project.version
     inputs.property "mcversion", project.minecraft.version
+    exclude("spotless.gradle")
 
     // replace stuff in mcmod.info, nothing else
     from(sourceSets.main.resources.srcDirs) {
         include 'mcmod.info'
 
-        // replace version and mcversion
+        // replace modVersion and minecraftVersion
         expand "minecraftVersion": project.minecraft.version,
-                "modVersion": versionDetails().lastTag,
-                "modId": modId,
-                "modName": modName
+            "modVersion": modVersion,
+            "modId": modId,
+            "modName": modName
+    }
+
+    if (usesMixins.toBoolean()) {
+        from refMap
     }
 
-    // copy everything else, thats not the mcmod.info
+    // copy everything else that's not the mcmod.info
     from(sourceSets.main.resources.srcDirs) {
         exclude 'mcmod.info'
+        exclude 'spotless.gradle'
     }
 }
 
-static def getManifestAttributes() {
+def getManifestAttributes() {
     def manifestAttributes = [:]
+    if (!containsMixinsAndOrCoreModOnly.toBoolean() && (usesMixins.toBoolean() || coreModClass)) {
+        manifestAttributes += ["FMLCorePluginContainsFMLMod": true]
+    }
+
+    if (accessTransformersFile) {
+        manifestAttributes += ["FMLAT": accessTransformersFile.toString()]
+    }
+
+    if (coreModClass) {
+        manifestAttributes += ["FMLCorePlugin": modGroup + "." + coreModClass]
+    }
+
+    if (usesMixins.toBoolean()) {
+        manifestAttributes += [
+            "TweakClass"    : "org.spongepowered.asm.launch.MixinTweaker",
+            "MixinConfigs"  : "mixins." + modId + ".json",
+            "ForceLoadAsMod": !containsMixinsAndOrCoreModOnly.toBoolean()
+        ]
+    }
     return manifestAtt