EntitySyncRequest.java

package mods.ocminecart.network.message;

import cpw.mods.fml.common.network.simpleimpl.IMessage;
import cpw.mods.fml.common.network.simpleimpl.IMessageHandler;
import cpw.mods.fml.common.network.simpleimpl.MessageContext;
import io.netty.buffer.ByteBuf;
import mods.ocminecart.common.ISyncEntity;
import net.minecraft.entity.Entity;
import net.minecraft.world.World;
import net.minecraftforge.common.DimensionManager;

public class EntitySyncRequest implements IMessage{
	
	protected int enID;
	protected int dimId;
	
	public EntitySyncRequest(){}
	
	public EntitySyncRequest(Entity entity){
		enID = entity.getEntityId();
		dimId = entity.worldObj.provider.dimensionId;
	}
	
	@Override
	public void fromBytes(ByteBuf buf) {
		this.enID = buf.readInt();
		this.dimId = buf.readInt();
	}

	@Override
	public void toBytes(ByteBuf buf) {
		buf.writeInt(this.enID);
		buf.writeInt(this.dimId);
	}
	
	public static class Handler implements IMessageHandler<EntitySyncRequest, IMessage>{

		@Override
		public IMessage onMessage(EntitySyncRequest message, MessageContext ctx) {
			World world = DimensionManager.getWorld(message.dimId);
			if(world !=null){
				Entity entity = world.getEntityByID(message.enID);
				if(entity != null && (entity instanceof ISyncEntity)){
					return new EntitySyncData(entity);
				}
			}
			return null;
		}

	}

}