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New utility methods in InventoryUtil

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This commit is contained in:
Olof Larsson 2013-03-14 17:59:46 +01:00
parent ad06dd854c
commit 3163253c49
1 changed files with 85 additions and 0 deletions
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85
src/com/massivecraft/mcore/util/InventoryUtil.java
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@ -1,11 +1,19 @@
package com.massivecraft.mcore.util;
import java.util.HashMap;
import org.bukkit.Bukkit;
import org.bukkit.craftbukkit.v1_4_R1.inventory.CraftInventoryCustom;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.InventoryHolder;
import org.bukkit.inventory.ItemStack;
public class InventoryUtil
{
// -------------------------------------------- //
// CREATE
// -------------------------------------------- //
public static Inventory create(int size)
{
return create(null, size, "Chest");
@ -25,4 +33,81 @@ public class InventoryUtil
{
return new CraftInventoryCustom(owner, size, title);
}
// -------------------------------------------- //
// CLONE ITEMSTACKS/INVENTORY
// -------------------------------------------- //
public static ItemStack[] cloneItemStacks(ItemStack[] itemStacks)
{
ItemStack[] ret = new ItemStack[itemStacks.length];
for (int i = 0; i < itemStacks.length; i++)
{
ItemStack stack = itemStacks[i];
if (stack == null) continue;
ret[i] = new ItemStack(itemStacks[i]);
}
return ret;
}
// NOTE: This method may not be compatible with player inventories
public static Inventory cloneInventory(Inventory inventory)
{
if (inventory == null) return null;
InventoryHolder holder = inventory.getHolder();
int size = inventory.getSize();
String title = inventory.getTitle();
ItemStack[] contents = cloneItemStacks(inventory.getContents());
Inventory ret = Bukkit.createInventory(holder, size, title);
ret.setContents(contents);
return ret;
}
// -------------------------------------------- //
// CAN I ADD MANY?
// -------------------------------------------- //
// Calculate how many times you could add this item to the inventory.
// NOTE: This method does not alter the inventory.
public static int roomLeft(Inventory inventory, ItemStack item, int limit)
{
inventory = cloneInventory(inventory);
int ret = 0;
while(limit <= 0 || ret < limit)
{
HashMap<Integer, ItemStack> result = inventory.addItem(item.clone());
if (result.size() != 0) return ret;
ret++;
}
return ret;
}
// NOTE: Use the roomLeft method first to ensure this method would succeed
public static void addItemTimes(Inventory inventory, ItemStack item, int times)
{
for (int i = 0 ; i < times ; i++)
{
inventory.addItem(item.clone());
}
}
// -------------------------------------------- //
// COUNT
// -------------------------------------------- //
public static int countSimilar(Inventory inventory, ItemStack itemStack)
{
int ret = 0;
for (ItemStack item : inventory.getContents())
{
if (item == null) continue;
if (!item.isSimilar(itemStack)) continue;
ret += item.getAmount();
}
return ret;
}
}