TinkersConstruct/src/main/java/tconstruct/tools/gui/ChestSlot.java

package tconstruct.tools.gui;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.ISidedInventory;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;

public class ChestSlot extends Slot {
    /*
     * A Slot, used for adjacent Chest Inventories, that can be disabled.
     */
    public boolean enabled = true;
    private int accessSide;
    private int visualIndex;

    public ChestSlot(IInventory inventory, int index, int visualIndex, int xPosition, int yPosition, int accessSide) {
        super(inventory, index, xPosition, yPosition);
        this.accessSide = accessSide;
        this.visualIndex = visualIndex;
    }

    @SideOnly(Side.CLIENT)
    @Override
    public boolean func_111238_b/*isEnabled*/() {
        return enabled;
    }

    public int getVisualIndex() {
        return visualIndex;
    }

    public void disable() {
        enabled = false;
    }

    public void enable() {
        enabled = true;
    }

    @Override
    public boolean isItemValid(ItemStack itemStack) {
        if (inventory instanceof ISidedInventory) {
            ISidedInventory sided = (ISidedInventory) inventory;
            return sided.canInsertItem(this.getSlotIndex(), itemStack, accessSide);
        }
        return inventory.isItemValidForSlot(this.getSlotIndex(), itemStack);
    }

    @Override
    public boolean canTakeStack(EntityPlayer player) {
        if (inventory instanceof ISidedInventory) {
            ISidedInventory sided = (ISidedInventory) inventory;
            return sided.canExtractItem(this.getSlotIndex(), this.getStack(), accessSide);
        }
        return super.canTakeStack(player);
    }
}