Port to Mixin

.gitignore

@@ -6,3 +6,5 @@ run/
 .classpath
 .project
 *.launch
+/.apt_generated/
+.factorypath

build.gradle

@@ -5,18 +5,25 @@ buildscript {
 			name 'forge'
 			url 'http://files.minecraftforge.net/maven'
 		}
+		maven {
+			name = 'sponge'
+			url = 'http://repo.spongepowered.org/maven'
+		}
 	}
 	dependencies {
 		classpath 'net.minecraftforge.gradle:ForgeGradle:2.0-SNAPSHOT'
+		classpath 'org.spongepowered:mixingradle:0.1-SNAPSHOT'
 	}
 }
 plugins {
+	id 'mnm.gradle.ap-ide' version '1.0.2'
 }
 
 ext.voxellib = project ':voxellib'
 ext.revision = 186
 
 apply plugin: 'net.minecraftforge.gradle.tweaker-client'
+apply plugin: 'org.spongepowered.mixin'
 
 archivesBaseName = "MineLittlePony"
 group = 'com.brohoof.minelp'
@@ -24,7 +31,7 @@ version = '1.8'
 
 minecraft {
 	version = "1.8"
-    mappings = 'snapshot_20151027'
+    mappings = 'stable_18'
 	runDir = 'run'
 	replace '@VERSION@',project.version
     tweakClass = 'com.mumfrey.liteloader.launch.LiteLoaderTweaker'
@@ -75,12 +82,14 @@ processResources {
 		exclude 'litemod.json'
 	}
 }
-allprojects {repositories{
-	maven {
-		name 'sponge'
-		url 'http://repo.spongepowered.org/maven'
+allprojects {
+	repositories{
+		maven {
+			name 'sponge'
+			url 'http://repo.spongepowered.org/maven'
+		}
 	}
-}}
+}
 dependencies {
 	provided project('LiteLoader')
 	provided voxellib
@@ -109,7 +118,10 @@ reobf {
 	jar.task.enabled = false
 	standaloneJar{}
 }
-
+sourceSets.main.refMap = 'mixin.minelp.refmap.json'
+mixin {
+    defaultObfuscationEnv notch
+}
 task installMod(type: Copy, dependsOn: build) {
 	from standaloneJar.archivePath
 	into file("$System.env.APPDATA/.minecraft/mods")

src/main/java/com/brohoof/minelittlepony/mixin/MixinRenderPlayer.java

@@ -1,19 +1,24 @@
-package com.brohoof.minelittlepony.renderer;
+package com.brohoof.minelittlepony.mixin;
 
 import static net.minecraft.client.renderer.GlStateManager.scale;
 
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Overwrite;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
 import com.brohoof.minelittlepony.MineLittlePony;
 import com.brohoof.minelittlepony.Pony;
 import com.brohoof.minelittlepony.PonySize;
 import com.brohoof.minelittlepony.model.PMAPI;
 import com.brohoof.minelittlepony.model.PlayerModel;
 import com.brohoof.minelittlepony.model.pony.ModelHumanPlayer;
+import com.brohoof.minelittlepony.renderer.IRenderPony;
 import com.brohoof.minelittlepony.renderer.layer.LayerHeldPonyItem;
 import com.brohoof.minelittlepony.renderer.layer.LayerPonyArmor;
 import com.brohoof.minelittlepony.renderer.layer.LayerPonyCape;
 import com.brohoof.minelittlepony.renderer.layer.LayerPonySkull;
-import com.mumfrey.liteloader.transformers.AppendInsns;
-import com.mumfrey.liteloader.transformers.Obfuscated;
 
 import net.minecraft.client.entity.AbstractClientPlayer;
 import net.minecraft.client.entity.EntityPlayerSP;
@@ -26,19 +31,18 @@ import net.minecraft.item.EnumAction;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.ResourceLocation;
 
-public abstract class RenderPony extends RendererLivingEntity implements IRenderPony {
-    @SuppressWarnings("unused")
-    private static RenderPlayer __TARGET;
+@Mixin(RenderPlayer.class)
+public abstract class MixinRenderPlayer extends RendererLivingEntity implements IRenderPony {
+
     private PlayerModel playerModel;
     private Pony thePony;
 
-    private RenderPony(RenderManager renderManager) {
+    private MixinRenderPlayer(RenderManager renderManager) {
         super(renderManager, null, 0.5F);
-        throw new InstantiationError("Overlay classes must not be instantiated");
     }
 
-    @AppendInsns("<init>")
-    private void init(RenderManager renderManager, boolean useSmallArms) {
+    @Inject(method="<init>(Lnet/minecraft/client/renderer/entity/RenderManager;Z)V", at=@At("RETURN"))
+    private void init(RenderManager renderManager, boolean useSmallArms, CallbackInfo ci) {
         this.playerModel = PMAPI.pony;
         this.mainModel = this.playerModel.getModel();
         this.shadowSize = this.playerModel.getShadowsize();
@@ -51,7 +55,7 @@ public abstract class RenderPony extends RendererLivingEntity implements IRender
         this.addLayer(new LayerPonyCape(this));
     }
 
-    @Obfuscated({ "a", "func_180596_a" })
+    @Overwrite
     public void doRender(AbstractClientPlayer player, double x, double y, double z, float yaw, float partialTicks) {
         ItemStack currentItemStack = player.inventory.getCurrentItem();
         this.thePony = MineLittlePony.getInstance().getManager().getPonyFromResourceRegistry(player);
@@ -106,9 +110,8 @@ public abstract class RenderPony extends RendererLivingEntity implements IRender
         this.playerModel.getModel().heldItemRight = 0;
     }
 
-    @AppendInsns("renderLivingAt")
-    @Obfuscated({ "a", "func_77039_a" })
-    public void setupPlayerScale(AbstractClientPlayer player, double xPosition, double yPosition, double zPosition) {
+    @Inject(method = "renderLivingAt", at = @At("RETURN"))
+    private void setupPlayerScale(AbstractClientPlayer player, double xPosition, double yPosition, double zPosition, CallbackInfo ci) {
 
         if (MineLittlePony.getConfig().getShowScale().get() && !(playerModel.getModel() instanceof ModelHumanPlayer)) {
             PonySize size = thePony.metadata.getSize();
@@ -119,17 +122,17 @@ public abstract class RenderPony extends RendererLivingEntity implements IRender
         }
     }
 
-    public ResourceLocation getEntityTexture(AbstractClientPlayer player) {
+    private ResourceLocation getEntityTexture(AbstractClientPlayer player) {
         Pony thePony = MineLittlePony.getInstance().getManager().getPonyFromResourceRegistry(player);
         return thePony.getTextureResourceLocation();
     }
 
     @Override
-    public ResourceLocation getEntityTexture(Entity entity) {
+    public final ResourceLocation getEntityTexture(Entity entity) {
         return this.getEntityTexture((AbstractClientPlayer) entity);
     }
 
-    protected PlayerModel getModel(AbstractClientPlayer player) {
+    private PlayerModel getModel(AbstractClientPlayer player) {
         Pony thePony = MineLittlePony.getInstance().getManager().getPonyFromResourceRegistry(player);
         return thePony.getModel();
     }

src/main/java/com/brohoof/minelittlepony/transformers/RenderPlayerTransformer.java

@@ -1,12 +0,0 @@
-package com.brohoof.minelittlepony.transformers;
-
-import com.mumfrey.liteloader.transformers.ClassOverlayTransformer;
-
-public class RenderPlayerTransformer extends ClassOverlayTransformer {
-
-    private static final String overlayClassName = "com.brohoof.minelittlepony.renderer.RenderPony";
-
-    public RenderPlayerTransformer() {
-        super(overlayClassName);
-    }
-}

src/main/resources/litemod.json

@@ -5,7 +5,7 @@
     "revision": "${revision}",
     "author": "Verdana, Rene_Z, Mumfrey, JoyJoy",
 	"voxelCommonJarName": "voxelcommon-2.4.0.jar",
-    "classTransformerClasses": "com.brohoof.minelittlepony.transformers.RenderPlayerTransformer",
+    "mixinConfigs": "mixin.minelp.json",
     "description": "Mine Little Pony turns players and mobs into ponies",
 	"description.minelittlepony": "Mine Little Pony turns players and mobs into ponies",
 	"description.hdskins": "Seperate skin server for Mine Little Pony that also supports HD skins. Access via Skin Manager key binding (default: F1) in the main menu."

src/main/resources/mixin.minelp.json

@@ -0,0 +1,7 @@
+{
+	"package": "com.brohoof.minelittlepony.mixin",
+	"refmap": "mixin.minelp.refmap.json",
+	"mixins": [
+		"MixinRenderPlayer"
+	]
+}