001package net.minecraft.inventory;
002
003import net.minecraft.entity.player.EntityPlayer;
004import net.minecraft.item.ItemStack;
005
006public class InventoryLargeChest implements IInventory
007{
008    /** Name of the chest. */
009    private String name;
010
011    /** Inventory object corresponding to double chest upper part */
012    private IInventory upperChest;
013
014    /** Inventory object corresponding to double chest lower part */
015    private IInventory lowerChest;
016
017    public InventoryLargeChest(String par1Str, IInventory par2IInventory, IInventory par3IInventory)
018    {
019        this.name = par1Str;
020
021        if (par2IInventory == null)
022        {
023            par2IInventory = par3IInventory;
024        }
025
026        if (par3IInventory == null)
027        {
028            par3IInventory = par2IInventory;
029        }
030
031        this.upperChest = par2IInventory;
032        this.lowerChest = par3IInventory;
033    }
034
035    /**
036     * Returns the number of slots in the inventory.
037     */
038    public int getSizeInventory()
039    {
040        return this.upperChest.getSizeInventory() + this.lowerChest.getSizeInventory();
041    }
042
043    /**
044     * Return whether the given inventory is part of this large chest.
045     */
046    public boolean isPartOfLargeChest(IInventory par1IInventory)
047    {
048        return this.upperChest == par1IInventory || this.lowerChest == par1IInventory;
049    }
050
051    /**
052     * Returns the name of the inventory.
053     */
054    public String getInvName()
055    {
056        return this.name;
057    }
058
059    /**
060     * Returns the stack in slot i
061     */
062    public ItemStack getStackInSlot(int par1)
063    {
064        return par1 >= this.upperChest.getSizeInventory() ? this.lowerChest.getStackInSlot(par1 - this.upperChest.getSizeInventory()) : this.upperChest.getStackInSlot(par1);
065    }
066
067    /**
068     * Removes from an inventory slot (first arg) up to a specified number (second arg) of items and returns them in a
069     * new stack.
070     */
071    public ItemStack decrStackSize(int par1, int par2)
072    {
073        return par1 >= this.upperChest.getSizeInventory() ? this.lowerChest.decrStackSize(par1 - this.upperChest.getSizeInventory(), par2) : this.upperChest.decrStackSize(par1, par2);
074    }
075
076    /**
077     * When some containers are closed they call this on each slot, then drop whatever it returns as an EntityItem -
078     * like when you close a workbench GUI.
079     */
080    public ItemStack getStackInSlotOnClosing(int par1)
081    {
082        return par1 >= this.upperChest.getSizeInventory() ? this.lowerChest.getStackInSlotOnClosing(par1 - this.upperChest.getSizeInventory()) : this.upperChest.getStackInSlotOnClosing(par1);
083    }
084
085    /**
086     * Sets the given item stack to the specified slot in the inventory (can be crafting or armor sections).
087     */
088    public void setInventorySlotContents(int par1, ItemStack par2ItemStack)
089    {
090        if (par1 >= this.upperChest.getSizeInventory())
091        {
092            this.lowerChest.setInventorySlotContents(par1 - this.upperChest.getSizeInventory(), par2ItemStack);
093        }
094        else
095        {
096            this.upperChest.setInventorySlotContents(par1, par2ItemStack);
097        }
098    }
099
100    /**
101     * Returns the maximum stack size for a inventory slot. Seems to always be 64, possibly will be extended. *Isn't
102     * this more of a set than a get?*
103     */
104    public int getInventoryStackLimit()
105    {
106        return this.upperChest.getInventoryStackLimit();
107    }
108
109    /**
110     * Called when an the contents of an Inventory change, usually
111     */
112    public void onInventoryChanged()
113    {
114        this.upperChest.onInventoryChanged();
115        this.lowerChest.onInventoryChanged();
116    }
117
118    /**
119     * Do not make give this method the name canInteractWith because it clashes with Container
120     */
121    public boolean isUseableByPlayer(EntityPlayer par1EntityPlayer)
122    {
123        return this.upperChest.isUseableByPlayer(par1EntityPlayer) && this.lowerChest.isUseableByPlayer(par1EntityPlayer);
124    }
125
126    public void openChest()
127    {
128        this.upperChest.openChest();
129        this.lowerChest.openChest();
130    }
131
132    public void closeChest()
133    {
134        this.upperChest.closeChest();
135        this.lowerChest.closeChest();
136    }
137}