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