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package org.bukkit.craftbukkit.inventory;
import java.util.HashMap;
import java.util.Map;
import net.minecraft.server.EnchantmentManager;
import net.minecraft.server.NBTTagCompound;
import net.minecraft.server.NBTTagList;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.inventory.ItemStack;
import org.bukkit.Material;
import org.bukkit.configuration.serialization.DelegateDeserialization;
@DelegateDeserialization(ItemStack.class)
public class CraftItemStack extends ItemStack {
protected net.minecraft.server.ItemStack item;
public CraftItemStack(net.minecraft.server.ItemStack item) {
super(
item != null ? item.id: 0,
item != null ? item.count : 0,
(short)(item != null ? item.getData() : 0)
);
this.item = item;
}
public CraftItemStack(ItemStack item) {
this(item.getTypeId(), item.getAmount(), item.getDurability());
addUnsafeEnchantments(item.getEnchantments());
}
/* 'Overwritten' constructors from ItemStack, yay for Java sucking */
public CraftItemStack(final int type) {
this(type, 0);
}
public CraftItemStack(final Material type) {
this(type, 0);
}
public CraftItemStack(final int type, final int amount) {
this(type, amount, (byte) 0);
}
public CraftItemStack(final Material type, final int amount) {
this(type.getId(), amount);
}
public CraftItemStack(final int type, final int amount, final short damage) {
this(type, amount, damage, null);
}
public CraftItemStack(final Material type, final int amount, final short damage) {
this(type.getId(), amount, damage);
}
public CraftItemStack(final Material type, final int amount, final short damage, final Byte data) {
this(type.getId(), amount, damage, data);
}
public CraftItemStack(int type, int amount, short damage, Byte data) {
this(new net.minecraft.server.ItemStack(type, amount, data != null ? data : damage));
}
/*
* Unsure if we have to sync before each of these calls the values in 'item'
* are all public.
*/
@Override
public Material getType() {
super.setTypeId(item != null ? item.id : 0); // sync, needed?
return super.getType();
}
@Override
public int getTypeId() {
super.setTypeId(item != null ? item.id : 0); // sync, needed?
return item != null ? item.id : 0;
}
@Override
public void setTypeId(int type) {
if (type == 0) {
super.setTypeId(0);
super.setAmount(0);
item = null;
} else {
if (item == null) {
item = new net.minecraft.server.ItemStack(type, 1, 0);
super.setAmount(1);
} else {
item.id = type;
super.setTypeId(item.id);
}
}
}
@Override
public int getAmount() {
super.setAmount(item != null ? item.count : 0); // sync, needed?
return (item != null ? item.count : 0);
}
@Override
public void setAmount(int amount) {
if (amount == 0) {
super.setTypeId(0);
super.setAmount(0);
item = null;
} else {
super.setAmount(amount);
item.count = amount;
}
}
@Override
public void setDurability(final short durability) {
// Ignore damage if item is null
if (item != null) {
super.setDurability(durability);
item.setData(durability);
}
}
@Override
public short getDurability() {
if (item != null) {
super.setDurability((short) item.getData()); // sync, needed?
return (short) item.getData();
} else {
return -1;
}
}
@Override
public int getMaxStackSize() {
return (item == null) ? 0 : item.getItem().getMaxStackSize();
}
@Override
public void addUnsafeEnchantment(Enchantment ench, int level) {
Map<Enchantment, Integer> enchantments = getEnchantments();
enchantments.put(ench, level);
rebuildEnchantments(enchantments);
}
@Override
public boolean containsEnchantment(Enchantment ench) {
return getEnchantmentLevel(ench) > 0;
}
@Override
public int getEnchantmentLevel(Enchantment ench) {
if (item == null) return 0;
return EnchantmentManager.getEnchantmentLevel(ench.getId(), item);
}
@Override
public int removeEnchantment(Enchantment ench) {
Map<Enchantment, Integer> enchantments = getEnchantments();
Integer previous = enchantments.remove(ench);
rebuildEnchantments(enchantments);
return (previous == null) ? 0 : previous;
}
@Override
public Map<Enchantment, Integer> getEnchantments() {
Map<Enchantment, Integer> result = new HashMap<Enchantment, Integer>();
NBTTagList list = (item == null) ? null : item.getEnchantments();
if (list == null) {
return result;
}
for (int i = 0; i < list.size(); i++) {
short id = ((NBTTagCompound) list.get(i)).getShort("id");
short level = ((NBTTagCompound) list.get(i)).getShort("lvl");
result.put(Enchantment.getById(id), (int) level);
}
return result;
}
private void rebuildEnchantments(Map<Enchantment, Integer> enchantments) {
if (item == null) return;
NBTTagCompound tag = item.tag;
NBTTagList list = new NBTTagList("ench");
if (tag == null) {
tag = item.tag = new NBTTagCompound();
}
for (Map.Entry<Enchantment, Integer> entry : enchantments.entrySet()) {
NBTTagCompound subtag = new NBTTagCompound();
subtag.setShort("id", (short) entry.getKey().getId());
subtag.setShort("lvl", (short) (int) entry.getValue());
list.add(subtag);
}
if (enchantments.isEmpty()) {
tag.remove("ench");
} else {
tag.set("ench", list);
}
}
public net.minecraft.server.ItemStack getHandle() {
return item;
}
@Override
public CraftItemStack clone() {
return new CraftItemStack(this.item == null ? this.item : this.item.cloneItemStack());
}
public static net.minecraft.server.ItemStack createNMSItemStack(ItemStack original) {
return new CraftItemStack(original).getHandle();
}
}
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