MessageSubRequester.java

package wesserboy.challengeMod.network;

import io.netty.buffer.ByteBuf;

import java.util.ArrayList;
import java.util.List;

import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import cpw.mods.fml.common.network.ByteBufUtils;

public class MessageSubRequester extends ChallengeMessageBase<MessageSubRequester>{
	
	public MessageSubRequester(){}
	
	private String[] items;
	
	public MessageSubRequester(String[] items){
		this.items = items;
	}

	@Override
	public void fromBytes(ByteBuf buf) {
		byte id = buf.readByte();
		int amount = 0;
		switch(id){
			case 0:
				amount = buf.readByte();
				break;
			case 1:
				amount = buf.readShort();
				break;
			case 2:
				amount = buf.readInt();
				break;
		}
		
		this.items = new String[amount];
		
		for(int i = 0; i < amount; i++){
			this.items[i] = ByteBufUtils.readUTF8String(buf);
		}
		
		System.out.println("Done reading stuff from bytebuffer");
		System.out.println(this.items == null);
	}

	@Override
	public void toBytes(ByteBuf buf) {
		//write how many items are being written (in a smart way)
		int amount = items.length;
		if(amount <= Byte.MAX_VALUE){
			buf.writeByte(0); //value is a byte
			buf.writeByte(amount);
		}else if(amount <= Short.MAX_VALUE){
			buf.writeByte(1); //value is a short
			buf.writeShort(amount);
		}else{
			buf.writeByte(2); //value is an integer
			buf.writeInt(amount);
		}
		
		for(int i = 0; i < items.length; i++){
			ByteBufUtils.writeUTF8String(buf, items[i]);
		}
		
		System.out.println("Done storing stuff to bytebuffer");
	}

	@Override
	public void handleClientSide(MessageSubRequester message) {
		System.out.println("Start handeling the Client");
		System.out.println(this.items == null);
		
		for(int i = 0; i < this.items.length; i++){
			Item item = (Item) Item.itemRegistry.getObject(this.items[i]);
			if(item != null && item.getCreativeTab() != null){
				List<ItemStack> subItems = new ArrayList<ItemStack>();
				item.getSubItems(item, null, subItems);
				if(subItems.size() > 0){
					NetworkHandler.sendToServer(new MessageListAdder(subItems.toArray(new ItemStack[]{})));
				}
			}
		}
		
		System.out.println("Done handeling the client");
	}

	@Override
	public void handleServerSide(MessageSubRequester message, EntityPlayerMP playerEntity) {
		
	}

}