ItemHelper.java

package nl.lang2619.bagginses.helpers;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;

/**
 * Created by Tim on 4/12/2015.
 */
public class ItemHelper {
    public static ItemStack cloneItemStack(ItemStack itemStack, int stackSize)
    {
        ItemStack clonedItemStack = itemStack.copy();
        clonedItemStack.stackSize = stackSize;
        return clonedItemStack;
    }

    public static boolean equalsIgnoreStackSize(ItemStack itemStack1, ItemStack itemStack2)
    {
        if (itemStack1 != null && itemStack2 != null)
        {
            // Sort on itemID
            if (Item.getIdFromItem(itemStack1.getItem()) - Item.getIdFromItem(itemStack2.getItem()) == 0)
            {
                // Sort on item
                if (itemStack1.getItem() == itemStack2.getItem())
                {
                    // Then sort on meta
                    if (itemStack1.getItemDamage() == itemStack2.getItemDamage())
                    {
                        // Then sort on NBT
                        if (itemStack1.hasTagCompound() && itemStack2.hasTagCompound())
                        {
                            // Then sort on stack size
                            if (ItemStack.areItemStackTagsEqual(itemStack1, itemStack2))
                            {
                                return true;
                            }
                        }
                        else if (!itemStack1.hasTagCompound() && !itemStack2.hasTagCompound())
                        {
                            return true;
                        }
                    }
                }
            }
        }

        return false;
    }

    public static boolean hasOwnerUUID(ItemStack itemStack)
    {
        return NBTHelper.hasTag(itemStack, Names.NBT.OWNER_UUID_MOST_SIG) && NBTHelper.hasTag(itemStack, Names.NBT.OWNER_UUID_LEAST_SIG);
    }

    public static boolean hasOwnerName(ItemStack itemStack)
    {
        return NBTHelper.hasTag(itemStack, Names.NBT.OWNER);
    }

    public static void setOwner(ItemStack itemStack, EntityPlayer entityPlayer)
    {
        setOwnerName(itemStack, entityPlayer);
        setOwnerUUID(itemStack, entityPlayer);
    }

    public static void setOwnerUUID(ItemStack itemStack, EntityPlayer entityPlayer)
    {
        NBTHelper.setLong(itemStack, Names.NBT.OWNER_UUID_MOST_SIG, entityPlayer.getUniqueID().getMostSignificantBits());
        NBTHelper.setLong(itemStack, Names.NBT.OWNER_UUID_LEAST_SIG, entityPlayer.getUniqueID().getLeastSignificantBits());
    }

    public static void setOwnerName(ItemStack itemStack, EntityPlayer entityPlayer)
    {
        NBTHelper.setString(itemStack, Names.NBT.OWNER, entityPlayer.getName());
    }



}