001    package net.minecraft.src;
002    
003    public class ContainerDispenser extends Container
004    {
005        private TileEntityDispenser tileEntityDispenser;
006    
007        public ContainerDispenser(IInventory par1IInventory, TileEntityDispenser par2TileEntityDispenser)
008        {
009            this.tileEntityDispenser = par2TileEntityDispenser;
010            int var3;
011            int var4;
012    
013            for (var3 = 0; var3 < 3; ++var3)
014            {
015                for (var4 = 0; var4 < 3; ++var4)
016                {
017                    this.addSlotToContainer(new Slot(par2TileEntityDispenser, var4 + var3 * 3, 62 + var4 * 18, 17 + var3 * 18));
018                }
019            }
020    
021            for (var3 = 0; var3 < 3; ++var3)
022            {
023                for (var4 = 0; var4 < 9; ++var4)
024                {
025                    this.addSlotToContainer(new Slot(par1IInventory, var4 + var3 * 9 + 9, 8 + var4 * 18, 84 + var3 * 18));
026                }
027            }
028    
029            for (var3 = 0; var3 < 9; ++var3)
030            {
031                this.addSlotToContainer(new Slot(par1IInventory, var3, 8 + var3 * 18, 142));
032            }
033        }
034    
035        public boolean canInteractWith(EntityPlayer par1EntityPlayer)
036        {
037            return this.tileEntityDispenser.isUseableByPlayer(par1EntityPlayer);
038        }
039    
040        /**
041         * Called to transfer a stack from one inventory to the other eg. when shift clicking.
042         */
043        public ItemStack transferStackInSlot(int par1)
044        {
045            ItemStack var2 = null;
046            Slot var3 = (Slot)this.inventorySlots.get(par1);
047    
048            if (var3 != null && var3.getHasStack())
049            {
050                ItemStack var4 = var3.getStack();
051                var2 = var4.copy();
052    
053                if (par1 < 9)
054                {
055                    if (!this.mergeItemStack(var4, 9, 45, true))
056                    {
057                        return null;
058                    }
059                }
060                else if (!this.mergeItemStack(var4, 0, 9, false))
061                {
062                    return null;
063                }
064    
065                if (var4.stackSize == 0)
066                {
067                    var3.putStack((ItemStack)null);
068                }
069                else
070                {
071                    var3.onSlotChanged();
072                }
073    
074                if (var4.stackSize == var2.stackSize)
075                {
076                    return null;
077                }
078    
079                var3.onPickupFromSlot(var4);
080            }
081    
082            return var2;
083        }
084    }