setup mixins using normal mixins

Author: Alexdoru

gradle.properties

@@ -74,21 +74,21 @@ apiPackage =
 accessTransformersFile =
 
 # Provides setup for Mixins if enabled. If you don't know what mixins are: Keep it disabled!
-usesMixins = false
+usesMixins = true
 
 # Set to a non-empty string to configure mixins in a separate source set under src/VALUE, instead of src/main.
 # This can speed up compile times thanks to not running the mixin annotation processor on all input sources.
 # Mixin classes will have access to "main" classes, but not the other way around.
 separateMixinSourceSet =
 
 # Adds some debug arguments like verbose output and class export.
-usesMixinDebug = false
+usesMixinDebug = true
 
 # Specify the location of your implementation of IMixinConfigPlugin. Leave it empty otherwise.
 mixinPlugin =
 
 # Specify the package that contains all of your Mixins. You may only place Mixins in this package or the build will fail!
-mixinsPackage =
+mixinsPackage = mixins
 
 # Specify the core mod entry class if you use a core mod. This class must implement IFMLLoadingPlugin!
 # This parameter is for legacy compatibility only

src/main/java/com/myname/mymodid/mixins/MixinMinecraft_Example.java

@@ -0,0 +1,18 @@
+package com.myname.mymodid.mixins;
+
+import net.minecraft.client.Minecraft;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(Minecraft.class) // the class targeted by this mixin
+public class MixinMinecraft_Example { // This is an example you should delete this class
+
+    @Inject(method = "startGame", at = @At("TAIL"))
+    private void example$sayHello(CallbackInfo ci) {
+        // this line of code will be injected at the end of the method "startGame" in the Minecraft class
+        System.out.println("Example mod says Hello from within Minecraft.startGame()!");
+    }
+}

src/main/resources/mixins.mymodid.json

@@ -0,0 +1,11 @@
+{
+  "required": true,
+  "minVersion": "0.8.5-GTNH",
+  "package": "com.myname.mymodid.mixins",
+  "refmap": "mixins.mymodid.refmap.json",
+  "target": "@env(DEFAULT)",
+  "compatibilityLevel": "JAVA_8",
+  "mixins": [],
+  "client": ["MixinMinecraft_Example"],
+  "server": []
+}