Fix mixin remapping for client hooks

build.gradle

@@ -15,6 +15,11 @@ repositories {
 }
 
 loom {
+    mixin {
+        useLegacyMixinAp = true
+        defaultRefmapName = "signleakshield.refmap.json"
+    }
+
     splitEnvironmentSourceSets()
 
     mods {

src/client/java/com/example/signleakshield/mixin/ClientConnectionMixin.java

@@ -17,7 +17,7 @@ import java.util.Arrays;
 
 @Mixin(ClientConnection.class)
 public abstract class ClientConnectionMixin {
-    @ModifyVariable(method = "send(Lnet/minecraft/network/packet/Packet;Lnet/minecraft/network/PacketCallbacks;Z)V", at = @At("HEAD"), argsOnly = true)
+    @ModifyVariable(method = "send(Lnet/minecraft/network/packet/Packet;)V", at = @At("HEAD"), argsOnly = true)
     private Packet<?> signleakshield$rewriteOutgoing(Packet<?> packet) {
         if (!(packet instanceof UpdateSignC2SPacket signPacket)) {
             return packet;

src/client/java/com/example/signleakshield/mixin/ClientPlayNetworkHandlerBlockEntityUpdateMixin.java

@@ -13,7 +13,7 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 @Mixin(ClientPlayNetworkHandler.class)
 public abstract class ClientPlayNetworkHandlerBlockEntityUpdateMixin {
-    @Inject(method = "method_11094(Lnet/minecraft/network/packet/s2c/play/BlockEntityUpdateS2CPacket;)V", at = @At("HEAD"))
+    @Inject(method = "onBlockEntityUpdate(Lnet/minecraft/network/packet/s2c/play/BlockEntityUpdateS2CPacket;)V", at = @At("HEAD"))
     private void signleakshield$captureSign(BlockEntityUpdateS2CPacket packet, CallbackInfo ci) {
         if (packet.getNbt() == null) {
             return;

src/client/java/com/example/signleakshield/mixin/ClientPlayNetworkHandlerChunkDataMixin.java

@@ -14,7 +14,7 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 @Mixin(ClientPlayNetworkHandler.class)
 public abstract class ClientPlayNetworkHandlerChunkDataMixin {
-    @Inject(method = "method_11128(Lnet/minecraft/network/packet/s2c/play/ChunkDataS2CPacket;)V", at = @At("HEAD"))
+    @Inject(method = "onChunkData(Lnet/minecraft/network/packet/s2c/play/ChunkDataS2CPacket;)V", at = @At("HEAD"))
     private void signleakshield$captureChunkData(ChunkDataS2CPacket packet, CallbackInfo ci) {
         packet.getChunkData().getBlockEntities(packet.getChunkX(), packet.getChunkZ()).accept((localPos, type, nbt) -> {
             if (nbt == null) {

src/main/resources/signleakshield.mixins.json

@@ -1,6 +1,7 @@
 {
   "required": true,
   "package": "com.example.signleakshield.mixin",
+  "refmap": "signleakshield.refmap.json",
   "compatibilityLevel": "JAVA_21",
   "client": [
     "ClientConnectionMixin",