package net.minecraft.item; import javax.annotation.Nullable; import net.minecraft.entity.player.EntityPlayer; import net.minecraft.network.Packet; import net.minecraft.world.World; public class ItemMapBase extends Item { /** * false for all Items except sub-classes of ItemMapBase */ public boolean isMap() { return true; } @Nullable public Packet createMapDataPacket(ItemStack stack, World worldIn, EntityPlayer player) { return null; } }