MHFCCraftingManager.java

package mhfc.net.common.crafting;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

import mhfc.net.common.crafting.recipes.MHFCShapedRecipes;
import mhfc.net.common.crafting.recipes.MHFCShapelessRecipe;
import net.minecraft.block.Block;
import net.minecraft.inventory.InventoryCrafting;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.item.crafting.IRecipe;
import net.minecraft.world.World;

public class MHFCCraftingManager {
	private static final MHFCCraftingManager instance = new MHFCCraftingManager();

	private Set<IRecipe> recipes;

	public static final MHFCCraftingManager getInstance() {
		return instance;
	}

	public MHFCCraftingManager() {

		recipes = new LinkedHashSet<IRecipe>();

	}

	// TODO: beautify this, is an akward method to add recipes
	// TODO rework this, pls, separation of concerns
	public ItemStack findMatchingRecipe(
			InventoryCrafting par1InventoryCrafting, World par2World) {
		int var3 = 0;
		ItemStack var4 = null;
		ItemStack var5 = null;
		int var6;

		for (var6 = 0; var6 < par1InventoryCrafting.getSizeInventory(); ++var6) {
			ItemStack var7 = par1InventoryCrafting.getStackInSlot(var6);

			if (var7 != null) {
				if (var3 == 0) {
					var4 = var7;
				}

				if (var3 == 1) {
					var5 = var7;
				}

				++var3;
			}
		}

		if (var3 == 2 && var4.getItem() == var5.getItem()
				&& var4.stackSize == 1 && var5.stackSize == 1
				&& var5.getItem().isRepairable()) {
			Item var11 = var5.getItem();
			int var13 = var11.getMaxDamage() - var4.getItemDamageForDisplay();
			int var8 = var11.getMaxDamage() - var5.getItemDamageForDisplay();
			int var9 = var13 + var8 + var11.getMaxDamage() * 5 / 100;
			int var10 = var11.getMaxDamage() - var9;

			if (var10 < 0) {
				var10 = 0;
			}

			return new ItemStack(var4.getItem(), 1, var10);
		}

		for (IRecipe var12 : this.recipes) {
			if (var12.matches(par1InventoryCrafting, par2World)) {
				return var12.getCraftingResult(par1InventoryCrafting);
			}
		}

		return null;
	}

	public Set<IRecipe> getRecipeList() {
		return this.recipes;
	}

	public MHFCShapedRecipes addShapedRecipe(ItemStack par1ItemStack,
			Object... par2ArrayOfObj) {

		// TODO this should be moved into an constructor of shaped recipe
		String var3 = "";
		int var4 = 0;
		int var5 = 0;
		int var6 = 0;

		if (par2ArrayOfObj[var4] instanceof String[]) {
			String[] var7 = ((String[]) par2ArrayOfObj[var4++]);

			for (int var8 = 0; var8 < var7.length; ++var8) {
				String var9 = var7[var8];
				++var6;
				var5 = var9.length();
				var3 = var3 + var9;
			}
		} else {
			while (par2ArrayOfObj[var4] instanceof String) {
				String var11 = (String) par2ArrayOfObj[var4++];
				++var6;
				var5 = var11.length();
				var3 = var3 + var11;
			}
		}

		HashMap<Character, ItemStack> var12 = new HashMap<Character, ItemStack>();

		for (; var4 < par2ArrayOfObj.length; var4 += 2) {
			Character var13 = (Character) par2ArrayOfObj[var4];
			ItemStack var14 = null;

			if (par2ArrayOfObj[var4 + 1] instanceof Item) {
				var14 = new ItemStack((Item) par2ArrayOfObj[var4 + 1]);
			} else if (par2ArrayOfObj[var4 + 1] instanceof Block) {
				var14 = new ItemStack((Block) par2ArrayOfObj[var4 + 1], 1, -1);
			} else if (par2ArrayOfObj[var4 + 1] instanceof ItemStack) {
				var14 = (ItemStack) par2ArrayOfObj[var4 + 1];
			}

			var12.put(var13, var14);
		}

		ItemStack[] var15 = new ItemStack[var5 * var6];

		for (int var16 = 0; var16 < var5 * var6; ++var16) {
			char var10 = var3.charAt(var16);

			if (var12.containsKey(Character.valueOf(var10))) {
				var15[var16] = var12.get(Character.valueOf(var10)).copy();
			} else {
				var15[var16] = null;
			}
		}

		MHFCShapedRecipes var17 = new MHFCShapedRecipes(var5, var6, var15,
				par1ItemStack);
		this.recipes.add(var17);
		return var17;
	}

	public void addShapelessRecipe(ItemStack par1ItemStack,
			ItemStack... recipeStacks) {
		List<ItemStack> var3 = new ArrayList<ItemStack>();
		var3.addAll(Arrays.asList(recipeStacks));
		this.recipes.add(new MHFCShapelessRecipe(par1ItemStack, var3));
	}

}