Add access transformers

Author: lineargraph

README.md

@@ -30,6 +30,10 @@ are used by the build system but *do not work* in a normal forge installation.
 If you don't want mixins (which allow for modifying vanilla code), then you can remove the references to mixins from
 the `build.gradle.kts` at the lines specified with comments and the `com.example.mixin` package.
 
+If you don't want access transformers (which allow for making methods public/non-final) you can delete the
+`accesstransformer.cfg` file. If you make a change to the `accesstransformers.cfg` you might need to rebuild your
+project using `./gradlew build --refresh-dependencies`.
+
 ### For those who have not an attention span
 
 [![Youtube Tutorial](https://i.ytimg.com/vi/nWzHlomdCgc/maxresdefault.jpg)](https://www.youtube.com/watch?v=nWzHlomdCgc)

build.gradle.kts

@@ -15,6 +15,7 @@ val mcVersion: String by project
 val version: String by project
 val mixinGroup = "$baseGroup.mixin"
 val modid: String by project
+val transformerFile = file("src/main/resources/accesstransformer.cfg")
 
 // Toolchains:
 java {
@@ -44,6 +45,10 @@ loom {
         pack200Provider.set(dev.architectury.pack200.java.Pack200Adapter())
         // If you don't want mixins, remove this lines
         mixinConfig("mixins.$modid.json")
+	    if (transformerFile.exists()) {
+			println("Installing access transformer")
+		    accessTransformer(transformerFile)
+	    }
     }
     // If you don't want mixins, remove these lines
     mixin {
@@ -99,6 +104,8 @@ tasks.withType(org.gradle.jvm.tasks.Jar::class) {
         // If you don't want mixins, remove these lines
         this["TweakClass"] = "org.spongepowered.asm.launch.MixinTweaker"
         this["MixinConfigs"] = "mixins.$modid.json"
+	    if (transformerFile.exists())
+			this["FMLAT"] = "${modid}_at.cfg"
     }
 }
 
@@ -112,7 +119,7 @@ tasks.processResources {
         expand(inputs.properties)
     }
 
-    rename("(.+_at.cfg)", "META-INF/$1")
+    rename("accesstransformer.cfg", "META-INF/${modid}_at.cfg")
 }
 
 

src/main/java/com/example/ExampleMod.java

@@ -1,5 +1,6 @@
 package com.example;
 
+import net.minecraft.client.renderer.GlStateManager;
 import net.minecraft.init.Blocks;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.event.FMLInitializationEvent;
@@ -9,5 +10,7 @@ public class ExampleMod {
     @Mod.EventHandler
     public void init(FMLInitializationEvent event) {
         System.out.println("Dirt: " + Blocks.dirt.getUnlocalizedName());
+		// Below is a demonstration of an access-transformed class access.
+        System.out.println("Color State: " + new GlStateManager.Color());
     }
 }

src/main/resources/accesstransformer.cfg

@@ -0,0 +1,2 @@
+
+public net.minecraft.client.renderer.GlStateManager$Color