ContainerHopper.java

package net.minecraft.inventory;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.item.ItemStack;

public class ContainerHopper extends Container
{
    private final IInventory field_94538_a;
    private static final String __OBFID = "CL_00001750";

    public ContainerHopper(InventoryPlayer p_i1814_1_, IInventory p_i1814_2_)
    {
        this.field_94538_a = p_i1814_2_;
        p_i1814_2_.openChest();
        byte b0 = 51;
        int i;

        for (i = 0; i < p_i1814_2_.getSizeInventory(); ++i)
        {
            this.addSlotToContainer(new Slot(p_i1814_2_, i, 44 + i * 18, 20));
        }

        for (i = 0; i < 3; ++i)
        {
            for (int j = 0; j < 9; ++j)
            {
                this.addSlotToContainer(new Slot(p_i1814_1_, j + i * 9 + 9, 8 + j * 18, i * 18 + b0));
            }
        }

        for (i = 0; i < 9; ++i)
        {
            this.addSlotToContainer(new Slot(p_i1814_1_, i, 8 + i * 18, 58 + b0));
        }
    }

    public boolean canInteractWith(EntityPlayer player)
    {
        return this.field_94538_a.isUseableByPlayer(player);
    }

    /**
     * Take a stack from the specified inventory slot.
     */
    public ItemStack transferStackInSlot(EntityPlayer player, int index)
    {
        ItemStack itemstack = null;
        Slot slot = (Slot)this.inventorySlots.get(index);

        if (slot != null && slot.getHasStack())
        {
            ItemStack itemstack1 = slot.getStack();
            itemstack = itemstack1.copy();

            if (index < this.field_94538_a.getSizeInventory())
            {
                if (!this.mergeItemStack(itemstack1, this.field_94538_a.getSizeInventory(), this.inventorySlots.size(), true))
                {
                    return null;
                }
            }
            else if (!this.mergeItemStack(itemstack1, 0, this.field_94538_a.getSizeInventory(), false))
            {
                return null;
            }

            if (itemstack1.stackSize == 0)
            {
                slot.putStack((ItemStack)null);
            }
            else
            {
                slot.onSlotChanged();
            }
        }

        return itemstack;
    }

    /**
     * Called when the container is closed.
     */
    public void onContainerClosed(EntityPlayer p_75134_1_)
    {
        super.onContainerClosed(p_75134_1_);
        this.field_94538_a.closeChest();
    }
}