1.8.9ForgeTemplateMixin

Mixin version of DxxxxY/1.8.9ForgeTemplate

A fixed and ready to use template for minecraft forge modding on 1.8.9 with mixin and shadow plugins integrated including two useful artifacts. Tested flawlessly on IntelliJ IDEA Ultimate 2022.2

        java   8
      gradle   3.1
      shadow   2.0.4
   minecraft   1.8.9
 forgegradle   2.1-SNAPSHOT
 mixingradle   0.6-SNAPSHOT
mixinlibrary   0.7.10-SNAPSHOT

Setup

Clone this repository.
Import build.gradle as a project.
Let it configure.
Run setupDecompWorkspace in Gradle: Tasks > forgegradle > setupDecompWorkspace
Reload gradle project.

Check out #build, #run, #mixin and #artifacts for more information.

Build

Note: If the build ever finishes with an error looking like duplicate entry, then run clean in Gradle: Tasks > build > clean

Run build in Gradle: Tasks > build > build

Output .jar will be located in build/libs/

Run

Run genIntellijRuns in Gradle: Tasks > forgegradle > genIntellijRuns

This will create the run configurations.
Note: you will need to change the classpath module to .main

You should add CopyResources from #artifacts as a Task before launch and drag it in front of build.

Artifacts

Note: If the artifacts are not detected on setup, you might need to restart your IntelliJ.

I have included two useful artifacts that I always use when developing mods:

CopyMod copies the mod from your #build folder into your %appdata%/.minecraft/mods
CopyResources copies the resources folder to your build/classes/main so they are accessible in the development environment

Mixin

This section will cover how to set up mixin the right way.

.../build.gradle:

//...

jar {
    manifest {
        attributes "FMLCorePlugin": "studio.dreamys.mixin.MixinLoader", //change this to your path to MixinLoader class
                "ForceLoadAsMod": true,
                "TweakOrder": 0,
                "ModSide": "CLIENT",
                'FMLCorePluginContainsFMLMod': true,
                'TweakClass': 'org.spongepowered.asm.launch.MixinTweaker',
                'MixinConfigs': 'mixins.examplemod.json' //change examplemod to your modid
    }
}

sourceSets {
    main {
        ext.refMap = "mixins.examplemod.refmap.json" //change examplemod to your modid
    }
}

//...

.../src/main/resources/mixins.examplemod.json:

{
  "required": true,
  "package": "studio.dreamys.mixin", //change this to your path to mixin package
  "refmap": "mixins.examplemod.refmap.json", //change examplemod to your modid
  "compatibilityLevel": "JAVA_8",
  "client": [
    "client.MixinMinecraft"
  ]
}

../src/main/java/studio/dreamys/mixin/MixinLoader.java:

public class MixinLoader implements IFMLLoadingPlugin {
    public MixinLoader() {
        System.out.println("[ExampleMod] Injecting with IFMLLoadingPlugin.");
        MixinBootstrap.init();
        Mixins.addConfiguration("mixins.examplemod.json"); //change examplemod to your modid
        MixinEnvironment.getDefaultEnvironment().setSide(MixinEnvironment.Side.CLIENT);
    }
    
//...

Optional

If you ever want to debug with mixins in your client, add this to your VM options in the Minecraft Client run configuration:

-Dfml.coreMods.load="studio.dreamys.mixin.MixinLoader"

Change to your path to MixinLoader class.

However, Hotswap will not work even if you don't modify the mixin.