src/main/java/mekanism/common/recipe/inputs/AdvancedMachineInput.java

package mekanism.common.recipe.inputs;

import mekanism.api.gas.Gas;
import mekanism.api.gas.GasTank;
import mekanism.api.util.StackUtils;
import mekanism.common.util.InventoryUtils;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.NonNullList;

public class AdvancedMachineInput extends MachineInput<AdvancedMachineInput>
{
	public ItemStack itemStack;

	public Gas gasType;

	public AdvancedMachineInput(ItemStack item, Gas gas)
	{
		itemStack = item;
		gasType = gas;
	}
	
	public AdvancedMachineInput() {}
	
	@Override
	public void load(NBTTagCompound nbtTags)
	{
		itemStack = InventoryUtils.loadFromNBT(nbtTags.getCompoundTag("input"));
		gasType = Gas.readFromNBT(nbtTags.getCompoundTag("gasType"));
	}

	@Override
	public AdvancedMachineInput copy()
	{
		return new AdvancedMachineInput(itemStack.copy(), gasType);
	}

	@Override
	public boolean isValid()
	{
		return itemStack != null && gasType != null;
	}

	public boolean useItem(NonNullList<ItemStack> inventory, int index, boolean deplete)
	{
		if(inputContains(inventory.get(index), itemStack))
		{
			if(deplete)
			{
				inventory.set(index, StackUtils.subtract(inventory.get(index), itemStack));
			}
			
			return true;
		}
		
		return false;
	}

	public boolean useSecondary(GasTank gasTank, int amountToUse, boolean deplete)
	{
		if(gasTank.getGasType() == gasType && gasTank.getStored() >= amountToUse)
		{
			gasTank.draw(amountToUse, deplete);
			return true;
		}
		
		return false;
	}

	public boolean matches(AdvancedMachineInput input)
	{
		return StackUtils.equalsWildcard(itemStack, input.itemStack) && input.itemStack.getCount() >= itemStack.getCount();
	}

	@Override
	public int hashIngredients()
	{
		return StackUtils.hashItemStack(itemStack) << 8 | gasType.getID();
	}

	@Override
	public boolean testEquality(AdvancedMachineInput other)
	{
		if(!isValid())
		{
			return !other.isValid();
		}
		
		return StackUtils.equalsWildcardWithNBT(itemStack, other.itemStack) && gasType.getID() == other.gasType.getID();
	}

	@Override
	public boolean isInstance(Object other)
	{
		return other instanceof AdvancedMachineInput;
	}
}