src/main/java/rosegoldaddons/mixins/MixinNetworkManager.java


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package rosegoldaddons.mixins;

import io.netty.channel.ChannelHandlerContext;
import net.minecraft.network.NetworkManager;
import net.minecraft.network.Packet;
import net.minecraftforge.common.MinecraftForge;
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;
import rosegoldaddons.events.ReceivePacketEvent;

@Mixin(NetworkManager.class)
public class MixinNetworkManager {

    @Inject(method = "channelRead0", at = @At("HEAD"), cancellable = true)
    private void onReceivePacket(ChannelHandlerContext context, Packet<?> packet, CallbackInfo ci) {
        if (MinecraftForge.EVENT_BUS.post(new ReceivePacketEvent(packet))) ci.cancel();
    }
}