InvertedStackFilter.java

/**
 * Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team
 * http://www.mod-buildcraft.com
 * <p/>
 * BuildCraft is distributed under the terms of the Minecraft Mod Public
 * License 1.0, or MMPL. Please check the contents of the license located in
 * http://www.mod-buildcraft.com/MMPL-1.0.txt
 */
package buildcraft.core.lib.inventory.filters;

import net.minecraft.item.ItemStack;

public class InvertedStackFilter implements IStackFilter {

	private final IStackFilter filter;

	public InvertedStackFilter(IStackFilter filter) {
		this.filter = filter;
	}

	@Override
	public boolean matches(ItemStack stack) {
		if (stack == null) {
			return false;
		}
		return !filter.matches(stack);
	}
}