001package net.minecraft.inventory;
002
003import net.minecraft.entity.player.EntityPlayer;
004import net.minecraft.item.ItemStack;
005import net.minecraft.tileentity.TileEntityDispenser;
006
007public class ContainerDispenser extends Container
008{
009    private TileEntityDispenser tileEntityDispenser;
010
011    public ContainerDispenser(IInventory par1IInventory, TileEntityDispenser par2TileEntityDispenser)
012    {
013        this.tileEntityDispenser = par2TileEntityDispenser;
014        int i;
015        int j;
016
017        for (i = 0; i < 3; ++i)
018        {
019            for (j = 0; j < 3; ++j)
020            {
021                this.addSlotToContainer(new Slot(par2TileEntityDispenser, j + i * 3, 62 + j * 18, 17 + i * 18));
022            }
023        }
024
025        for (i = 0; i < 3; ++i)
026        {
027            for (j = 0; j < 9; ++j)
028            {
029                this.addSlotToContainer(new Slot(par1IInventory, j + i * 9 + 9, 8 + j * 18, 84 + i * 18));
030            }
031        }
032
033        for (i = 0; i < 9; ++i)
034        {
035            this.addSlotToContainer(new Slot(par1IInventory, i, 8 + i * 18, 142));
036        }
037    }
038
039    public boolean canInteractWith(EntityPlayer par1EntityPlayer)
040    {
041        return this.tileEntityDispenser.isUseableByPlayer(par1EntityPlayer);
042    }
043
044    /**
045     * Called when a player shift-clicks on a slot. You must override this or you will crash when someone does that.
046     */
047    public ItemStack transferStackInSlot(EntityPlayer par1EntityPlayer, int par2)
048    {
049        ItemStack itemstack = null;
050        Slot slot = (Slot)this.inventorySlots.get(par2);
051
052        if (slot != null && slot.getHasStack())
053        {
054            ItemStack itemstack1 = slot.getStack();
055            itemstack = itemstack1.copy();
056
057            if (par2 < 9)
058            {
059                if (!this.mergeItemStack(itemstack1, 9, 45, true))
060                {
061                    return null;
062                }
063            }
064            else if (!this.mergeItemStack(itemstack1, 0, 9, false))
065            {
066                return null;
067            }
068
069            if (itemstack1.stackSize == 0)
070            {
071                slot.putStack((ItemStack)null);
072            }
073            else
074            {
075                slot.onSlotChanged();
076            }
077
078            if (itemstack1.stackSize == itemstack.stackSize)
079            {
080                return null;
081            }
082
083            slot.onPickupFromSlot(par1EntityPlayer, itemstack1);
084        }
085
086        return itemstack;
087    }
088}