Support 1.17 Forge

[LightOverlay.git] / forge / src / main / resources / META-INF / Connection.js

diff --git a/forge/src/main/resources/META-INF/Connection.js b/forge/src/main/resources/META-INF/Connection.js
new file mode 100644 (file)
index 0000000..7f7e122
--- /dev/null
+++ b/forge/src/main/resources/META-INF/Connection.js
@@ -0,0 +1,33 @@
+var Opcodes = Java.type("org.objectweb.asm.Opcodes");
+var VarInsnNode = Java.type("org.objectweb.asm.tree.VarInsnNode");
+var MethodInsnNode = Java.type("org.objectweb.asm.tree.MethodInsnNode");
+var ASMAPI = Java.type("net.minecraftforge.coremod.api.ASMAPI");
+
+function transformMethod(method) {
+    var instructions = method.instructions;
+    instructions.insert(new MethodInsnNode(Opcodes.INVOKESTATIC, "me/shedaniel/lightoverlay/forge/mixin/MixinClientConnection", "handlePacket", "(Lnet/minecraft/network/protocol/Packet;Lnet/minecraft/network/PacketListener;)V", false));
+    instructions.insert(new VarInsnNode(Opcodes.ALOAD, 1));
+    instructions.insert(new VarInsnNode(Opcodes.ALOAD, 0));
+}
+
+function initializeCoreMod() {
+    return {
+        "lightoverlay": {
+            'target': {
+                'type': 'CLASS',
+                'name': 'net.minecraft.network.Connection'
+            },
+            'transformer': function (classNode) {
+                var genericsFtw = ASMAPI.mapMethod("m_129517_");
+                for (i in classNode.methods) {
+                    var method = classNode.methods[i];
+                    if (method.name === genericsFtw) {
+                        transformMethod(method)
+                        break;
+                    }
+                }
+                return classNode;
+            }
+        }
+    }
+}
\ No newline at end of file