SlotVendingMachine

package com.skcraft.creditvendor.gui;

import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;

public class SlotVendingMachine extends Slot {
    public IInventory inventory;

    public SlotVendingMachine( IInventory inventory, int id, int x, int y ) {
        super( inventory, id, x, y );
        this.inventory = inventory;
    }

    @Override
    public boolean isItemValid( ItemStack itemStack ) {
        return inventory.isItemValidForSlot( getSlotIndex(), itemStack );
    }
}