Java tutorial
/** * Copyright (c) 2011-2014, SpaceToad and the BuildCraft Team * http://www.mod-buildcraft.com * * BuildCraft is distributed under the terms of the Minecraft Mod Public * License 1.0, or MMPL. Please check the contents of the license located in * http://www.mod-buildcraft.com/MMPL-1.0.txt */ package buildcraft.core.network.serializers; import io.netty.buffer.ByteBuf; import net.minecraft.item.Item; public class SerializerItem extends ClassSerializer { @Override public void write(ByteBuf data, Object o, SerializationContext context) { Item i = (Item) o; if (i == null) { data.writeBoolean(false); } else { data.writeBoolean(true); data.writeInt(Item.getIdFromItem(i)); } } @Override public Object read(ByteBuf data, Object o, SerializationContext context) { if (!data.readBoolean()) { return null; } else { return Item.getItemById(data.readInt()); } } }