ActuallyAdditions/src/main/java/ellpeck/someprettyrandomstuff/inventory/slot/SlotOutput.java

package ellpeck.someprettyrandomstuff.inventory.slot;

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

public class SlotOutput extends Slot{

    public SlotOutput(IInventory inventory, int id, int x, int y){
        super(inventory, id, x, y);
    }

    @Override
    public boolean isItemValid(ItemStack stack){
        return false;
    }
}