ActuallyAdditions/src/main/java/de/ellpeck/actuallyadditions/util/ItemUtil.java

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/*
* This file ("ItemUtil.java") is part of the Actually Additions Mod for Minecraft.
* It is created and owned by Ellpeck and distributed
* under the Actually Additions License to be found at
* http://github.com/Ellpeck/ActuallyAdditions/blob/master/README.md
* View the source code at https://github.com/Ellpeck/ActuallyAdditions
*
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* © 2015 Ellpeck
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*/
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package de.ellpeck.actuallyadditions.util;
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import net.minecraft.enchantment.Enchantment;
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import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagList;
import java.util.List;
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public class ItemUtil{
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public static Item getItemFromName(String name){
if(Item.itemRegistry.containsKey(name)){
return (Item)Item.itemRegistry.getObject(name);
}
return null;
}
/**
* Returns true if array contains stack or if both contain null
*/
public static boolean contains(ItemStack[] array, ItemStack stack, boolean checkWildcard){
return getPlaceAt(array, stack, checkWildcard) != -1;
}
/**
* Returns the place of stack in array, -1 if not present
*/
public static int getPlaceAt(ItemStack[] array, ItemStack stack, boolean checkWildcard){
if(array != null && array.length > 0){
for(int i = 0; i < array.length; i++){
if((stack == null && array[i] == null) || areItemsEqual(stack, array[i], checkWildcard)){
return i;
}
}
}
return -1;
}
public static boolean areItemsEqual(ItemStack stack1, ItemStack stack2, boolean checkWildcard){
return stack1 != null && stack2 != null && (stack1.isItemEqual(stack2) || (checkWildcard && stack1.getItem() == stack2.getItem() && (stack1.getItemDamage() == Util.WILDCARD || stack2.getItemDamage() == Util.WILDCARD)));
}
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/**
* Returns true if list contains stack or if both contain null
*/
public static boolean contains(List<ItemStack> list, ItemStack stack, boolean checkWildcard){
return !(list == null || list.isEmpty()) && getPlaceAt(list.toArray(new ItemStack[list.size()]), stack, checkWildcard) != -1;
}
public static void addEnchantment(ItemStack stack, Enchantment e, int level){
if(!hasEnchantment(stack, e)){
stack.addEnchantment(e, level);
}
}
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public static boolean hasEnchantment(ItemStack stack, Enchantment e){
NBTTagList ench = stack.getEnchantmentTagList();
if(ench != null){
for(int i = 0; i < ench.tagCount(); i++){
short id = ench.getCompoundTagAt(i).getShort("id");
if(id == e.effectId){
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return true;
}
}
}
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return false;
}
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public static void removeEnchantment(ItemStack stack, Enchantment e){
NBTTagList ench = stack.getEnchantmentTagList();
if(ench != null){
for(int i = 0; i < ench.tagCount(); i++){
short id = ench.getCompoundTagAt(i).getShort("id");
if(id == e.effectId){
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ench.removeTag(i);
}
}
}
}
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}