KeepIvyRecipe.java

/**
 * This class was created by <Vazkii>. It's distributed as
 * part of the Botania Mod. Get the Source Code in github:
 * https://github.com/Vazkii/Botania
 *
 * Botania is Open Source and distributed under the
 * Botania License: http://botaniamod.net/license.php
 *
 * File Created @ [Mar 31, 2015, 9:23:22 PM (GMT)]
 */
package vazkii.botania.common.crafting.recipe;

import javax.annotation.Nonnull;

import net.minecraft.inventory.InventoryCrafting;
import net.minecraft.item.ItemStack;
import net.minecraft.item.crafting.IRecipe;
import net.minecraft.util.NonNullList;
import net.minecraft.world.World;
import net.minecraftforge.common.ForgeHooks;
import vazkii.botania.common.core.helper.ItemNBTHelper;
import vazkii.botania.common.item.ItemKeepIvy;
import vazkii.botania.common.item.ModItems;

public class KeepIvyRecipe implements IRecipe {

	@Override
	public boolean matches(@Nonnull InventoryCrafting var1, @Nonnull World var2) {
		boolean foundIvy = false;
		boolean foundItem = false;

		for(int i = 0; i < var1.getSizeInventory(); i++) {
			ItemStack stack = var1.getStackInSlot(i);
			if(!stack.isEmpty()) {
				if(stack.getItem() == ModItems.keepIvy)
					foundIvy = true;
				else if(!foundItem && !(stack.hasTagCompound() && ItemNBTHelper.getBoolean(stack, ItemKeepIvy.TAG_KEEP, false)) && !stack.getItem().hasContainerItem(stack))
					foundItem = true;
				else return false;
			}
		}

		return foundIvy && foundItem;
	}

	@Nonnull
	@Override
	public ItemStack getCraftingResult(@Nonnull InventoryCrafting var1) {
		ItemStack item = ItemStack.EMPTY;

		for(int i = 0; i < var1.getSizeInventory(); i++) {
			ItemStack stack = var1.getStackInSlot(i);
			if(!stack.isEmpty() && stack.getItem() != ModItems.keepIvy)
				item = stack;
		}

		ItemStack copy = item.copy();
		ItemNBTHelper.setBoolean(copy, ItemKeepIvy.TAG_KEEP, true);
		copy.setCount(1);
		return copy;
	}

	@Override
	public int getRecipeSize() {
		return 10;
	}

	@Nonnull
	@Override
	public ItemStack getRecipeOutput() {
		return ItemStack.EMPTY;
	}

	@Nonnull
	@Override
	public NonNullList<ItemStack> getRemainingItems(@Nonnull InventoryCrafting inv) {
		return ForgeHooks.defaultRecipeGetRemainingItems(inv);
	}
}