forge/src/main/resources/META-INF/Connection.js

   1 var Opcodes = Java.type("org.objectweb.asm.Opcodes");
   2 var VarInsnNode = Java.type("org.objectweb.asm.tree.VarInsnNode");
   3 var MethodInsnNode = Java.type("org.objectweb.asm.tree.MethodInsnNode");
   4 var ASMAPI = Java.type("net.minecraftforge.coremod.api.ASMAPI");
   5
   6 function transformMethod(method) {
   7     var instructions = method.instructions;
   8     instructions.insert(new MethodInsnNode(Opcodes.INVOKESTATIC, "me/shedaniel/lightoverlay/forge/mixin/MixinClientConnection", "handlePacket", "(Lnet/minecraft/network/protocol/Packet;Lnet/minecraft/network/PacketListener;)V", false));
   9     instructions.insert(new VarInsnNode(Opcodes.ALOAD, 1));
  10     instructions.insert(new VarInsnNode(Opcodes.ALOAD, 0));
  11 }
  12
  13 function initializeCoreMod() {
  14     return {
  15         "lightoverlay": {
  16             'target': {
  17                 'type': 'CLASS',
  18                 'name': 'net.minecraft.network.Connection'
  19             },
  20             'transformer': function (classNode) {
  21                 var genericsFtw = ASMAPI.mapMethod("m_129517_");
  22                 for (i in classNode.methods) {
  23                     var method = classNode.methods[i];
  24                     if (method.name === genericsFtw) {
  25                         transformMethod(method)
  26                         break;
  27                     }
  28                 }
  29                 return classNode;
  30             }
  31         }
  32     }
  33 }