Hey,

I've got my own crafting table, with it's Gui and container. I want the crafting recipes of my mod just to be crafted in the mod's workbench. So I created my own CraftingManager and used this method in my container class:

 

	@Override
public void onCraftMatrixChanged(IInventory inventoryIn) {
	this.craftResult.setInventorySlotContents(0,
			MyCraftingManager.getInstance().findMatchingRecipe(this.craftMatrix, this.worldObj));
}

 

 

I copied all methods from the CraftingManager to my own one and added my recipes. When I put the items in the correct shape, the result is displayed and I can take it out, but the items in the 3x3 slots are still there. I can take tons of result items, because they are not consumed. I also tried to use the forge CraftingManager. Then all works fine... I don't know what's wrong 

 

 

MyCraftingManager.class (I copied all methods from the original CraftingManager):

public class MyCraftingManager {

private static final MyCraftingManagerinstance = new MyCraftingManager();
private final List recipes = Lists.newArrayList();

public static MyCraftingManagergetInstance() {
	return instance;
}

private MyCraftingManager() {
	addRecipe(new ItemStack(MyBlocks.MyBlock, 2),
			new Object[] { "111", "111", "111", '1', Blocks.cobblestone });

	Collections.sort(this.recipes, new Comparator() {
		public int compare(IRecipe rec1, IRecipe rec2) {
			return rec1 instanceof ShapelessRecipes && rec2 instanceof ShapedRecipes ? 1
					: (rec2 instanceof ShapelessRecipes && rec1 instanceof ShapedRecipes ? -1
							: (rec2.getRecipeSize() < rec1.getRecipeSize() ? -1
									: (rec2.getRecipeSize() > rec1.getRecipeSize() ? 1 : 0)));
		}

		public int compare(Object rec1, Object rec2) {
			return this.compare((IRecipe) rec1, (IRecipe) rec2);
		}
	});
}

public ShapedRecipes addRecipe(ItemStack stack, Object... recipeComponents) {
	String s = "";
	int i = 0;
	int j = 0;
	int k = 0;

	if (recipeComponents[i] instanceof String[]) {
		String[] astring = (String[]) ((String[]) recipeComponents[i++]);

		for (int l = 0; l < astring.length; ++l) {
			String s1 = astring[l];
			++k;
			j = s1.length();
			s = s + s1;
		}
	} else {
		while (recipeComponents[i] instanceof String) {
			String s2 = (String) recipeComponents[i++];
			++k;
			j = s2.length();
			s = s + s2;
		}
	}

	HashMap hashmap;

	for (hashmap = Maps.newHashMap(); i < recipeComponents.length; i += 2) {
		Character character = (Character) recipeComponents[i];
		ItemStack itemstack1 = null;

		if (recipeComponents[i + 1] instanceof Item) {
			itemstack1 = new ItemStack((Item) recipeComponents[i + 1]);
		} else if (recipeComponents[i + 1] instanceof Block) {
			itemstack1 = new ItemStack((Block) recipeComponents[i + 1], 1, 32767);
		} else if (recipeComponents[i + 1] instanceof ItemStack) {
			itemstack1 = (ItemStack) recipeComponents[i + 1];
		}

		hashmap.put(character, itemstack1);
	}

	ItemStack[] aitemstack = new ItemStack[j * k];

	for (int i1 = 0; i1 < j * k; ++i1) {
		char c0 = s.charAt(i1);

		if (hashmap.containsKey(Character.valueOf(c0))) {
			aitemstack[i1] = ((ItemStack) hashmap.get(Character.valueOf(c0))).copy();
		} else {
			aitemstack[i1] = null;
		}
	}

	ShapedRecipes shapedrecipes = new ShapedRecipes(j, k, aitemstack, stack);
	this.recipes.add(shapedrecipes);
	return shapedrecipes;
}

public void addShapelessRecipe(ItemStack stack, Object... recipeComponents) {
	ArrayList arraylist = Lists.newArrayList();
	Object[] aobject = recipeComponents;
	int i = recipeComponents.length;

	for (int j = 0; j < i; ++j) {
		Object object1 = aobject[j];

		if (object1 instanceof ItemStack) {
			arraylist.add(((ItemStack) object1).copy());
		} else if (object1 instanceof Item) {
			arraylist.add(new ItemStack((Item) object1));
		} else {
			if (!(object1 instanceof Block)) {
				throw new IllegalArgumentException(
						"Invalid shapeless recipe: unknown type " + object1.getClass().getName() + "!");
			}

			arraylist.add(new ItemStack((Block) object1));
		}
	}

	this.recipes.add(new ShapelessRecipes(stack, arraylist));
}

public void addRecipe(IRecipe recipe) {
	this.recipes.add(recipe);
}

public ItemStack findMatchingRecipe(InventoryCrafting inv, World world) {
	Iterator iterator = this.recipes.iterator();
	IRecipe irecipe;

	do {
		if (!iterator.hasNext()) {
			return null;
		}

		irecipe = (IRecipe) iterator.next();
	} while (!irecipe.matches(inv, world));

	return irecipe.getCraftingResult(inv);
}

public ItemStack[] func_180303_b(InventoryCrafting inv, World world) {
	Iterator iterator = this.recipes.iterator();

	while (iterator.hasNext()) {
		IRecipe irecipe = (IRecipe) iterator.next();

		if (irecipe.matches(inv, world)) {
			return irecipe.getRemainingItems(inv);
		}
	}

	ItemStack[] aitemstack = new ItemStack[inv.getSizeInventory()];

	for (int i = 0; i < aitemstack.length; ++i) {
		aitemstack[i] = inv.getStackInSlot(i);
	}

	return aitemstack;
}

public List getRecipeList() {
	return this.recipes;
}
}

 

 

I think I has to do with this method, but I'm not really sure:

public ItemStack[] func_180303_b(InventoryCrafting inv, World world) {}

read about the keyword extends please. after that go and smash ur head soft against a wall

The constructor CraftingManager is not visible 

damn u mojang.

so u just want ur custom CraftingManager, which is basically the same, right?

Why not create ur own instance using reflection, instead of just copy pasting the whole code

Yes, I just want my recipes to be crafted just in my workbench.. Could you explain that?

Could you google that?

http://stackoverflow.com/questions/2599440/how-can-i-access-a-private-constructor-of-a-class

I added this to my constructor:

	public MyCraftingManager() {
	try {
		Constructor<CraftingManager> constructor = CraftingManager.class.getDeclaredConstructor(new Class[0]);
		constructor.setAccessible(true);
		CraftingManager cm = constructor.newInstance(new Object[0]);
	} catch (Exception e) {
		e.printStackTrace();
	}
        }

 

Should I do now

cm.addRecipe

instead of calling my copied method? This works, but now I can craft vanilla items too and the bigger problem is that the items are still not consumed...

not sure why u need ur own class. just save the instance in ur main mod class and access it in ur crafting gui.

 

For the problem with removing items, look at SlotCrafting#onPickupFromSlot

Because I need it for the crafting recipes. The container checks if the items are arranged as the recipes added in the constructor. Where do I have to call this?

EDIT: I override the method on slot click in the container class.

if u are only coping methods from the crafting manager u wont need ur own class.

So should I check in the container, if the items are a recipe?

exactly. just add the recipes to ur custom CraftingManager instance, after that check in ur container if the recipe is valid (using the crafting manager) , and consume the items if the result is taken out