I am trying to make a custom crafting table with only my custom recipes.

I don't think I have the best way of going about it, but it seems to work, except when I place an item in the first slot in the crafting matrix (index 1), it appears in the output slot (index 0), also I cannot figure out how to stop players from putting items in the output slot.

Also, do I have to manually listen for the GUI render event and cancel the rendering of the hotbar, health, etc...

Current code:

public class CulinaryWorkbenchContainer extends Container {
    private CulinaryWorkbenchRecipe recipe;
    private World world;
    private BlockPos table;
    private InventoryCrafting matrix;
    private InventoryCraftResult result;
    private EntityPlayer player;
    private Boolean closed = true;

    CulinaryWorkbenchContainer(InventoryPlayer playerInventory, World world, BlockPos table) {
        world = world;
        table = table;
        matrix = new InventoryCrafting(this, 3, 3);
        player = playerInventory.player;

        result = new InventoryCraftResult();

        addSlotToContainer(new Slot(matrix, 0, 124, 35));
        for (int i = 0; i < 3; i++) {
            for (int j = 1; j < 4; j++) {
                addSlotToContainer(new Slot(matrix, (j - 1) + i * 3, 30 + (j - 1) * 18, 17 + i * 18));
            }
        }

        for (int k = 0; k < 3; k++) {
            for (int i = 1; i < 10; i++) {
                addSlotToContainer(new Slot(playerInventory, (i - 1) + k * 9 + 9, 8 + (i - 1) * 18, 84 + k * 18));
            }
        }

        for (int i = 1; i < 10; i++) {
            addSlotToContainer(new Slot(playerInventory, i - 1, 8 + (i - 1) * 18, 142));
        }
    }

    @Override
    public boolean canInteractWith(EntityPlayer playerIn) {
        BlockPos pos = playerIn.rayTrace(6, 1.0f).getBlockPos();
        World world = playerIn.getEntityWorld();
        Block block = world.getBlockState(pos).getBlock();
        Boolean equals = block.equals(BlockRegistry.blocks[0]);
        double distance = playerIn.getDistanceSq(pos);
        Boolean equals2 = distance <= 8 * 8;
        return equals && equals2;
    }

    @Override
    public void onContainerClosed(EntityPlayer playerIn) {
        super.onContainerClosed(playerIn);

        if (!world.isRemote) {
            for (int i = 0; i < 9; ++i) {
                ItemStack itemstack = matrix.removeStackFromSlot(i);

                if (!itemstack.isEmpty()) {
                    playerIn.dropItem(itemstack, false);
                }
            }
        }
    }

    @Override
    public ItemStack transferStackInSlot(EntityPlayer playerIn, int index) {
        ItemStack itemstack = ItemStack.EMPTY;
        Slot slot = inventorySlots.get(index);

        if (slot != null && slot.getHasStack()) {
            ItemStack currentItem = slot.getStack();
            itemstack = currentItem.copy();

            if (index == 0) {
                if (!getSlot(0).equals(ItemStack.EMPTY)) {
                    currentItem.getItem().onCreated(currentItem, world, playerIn);
                    onPickupFromSlot(recipe);
                    slot.onSlotChange(currentItem, itemstack);
                }
            } else if (index >= 11 && index < 38) {
                if (!mergeItemStack(currentItem, 37, 46, false)) {
                    return ItemStack.EMPTY;
                }
            } else if (index >= 38 && index < 46) {
                if (!mergeItemStack(currentItem, 10, 37, false)) {
                    return ItemStack.EMPTY;
                }
                if (recipe != null)
                    putStackInSlot(0, recipe.output);
            } else if (!mergeItemStack(currentItem, 10, 46, false)) {
                return ItemStack.EMPTY;
            }

            if (currentItem.isEmpty()) {
                slot.putStack(ItemStack.EMPTY);
            } else {
                slot.onSlotChanged();
            }

            if (currentItem.getCount() == itemstack.getCount()) {
                return ItemStack.EMPTY;
            }
            slot.onTake(playerIn, currentItem);
            if (index == 0) {
                playerIn.dropItem(currentItem, false);
            }
        }

        return itemstack;
    }

    @Override
    public boolean canMergeSlot(ItemStack stack, Slot slotIn) {
        return slotIn.slotNumber != 0 && super.canMergeSlot(stack, slotIn);
    }

    @Override
    public void onCraftMatrixChanged(IInventory in) {
        Boolean recipeFound = false;
        for (CulinaryWorkbenchRecipe recipe : CulinaryCraft.recipes) {
            boolean found = true;
            if (recipe.shaped) {
                for (int i = 0; i < 9; i++) {
                    for (ItemStack ingredient : OreDictionary.getOres(recipe.ingredients[i])) {
                        if (!found) break;
                        ItemStack item = matrix.getStackInSlot(i);
                        if (ingredient.getItem() != item.getItem()) found = false;
                        if (ingredient.getCount() > item.getCount()) found = false;
                    }
                    if (!found) break;
                }
            } else {
                for (String sIngredient : recipe.ingredients) {
                    int addedAmt = 0;
                    for (int i = 0; i < 9; i++) {
                        for (ItemStack ingredient : OreDictionary.getOres(sIngredient)) {
                            ItemStack item = matrix.getStackInSlot(i);
                            if (ingredient.getItem().equals(item.getItem()) && item.getCount() == ingredient.getCount()) {
                                addedAmt += 1;
                            }
                        }
                    }
                    if (addedAmt != recipe.ingredients.length) {
                        found = false;
                    }
                }
            }
            if (found) {
                recipeFound = true;
                result.setInventorySlotContents(0, recipe.output);
                recipe = recipe;
            }
        }
        if(!recipeFound) {
            recipe = null;
        }
    }

    private void onPickupFromSlot(CulinaryWorkbenchRecipe recipe) {
        for (int i = 0; i < matrix.getSizeInventory(); i++) {
            ItemStack currentItem = matrix.getStackInSlot(i);

            if (currentItem != null) {
                NonNullList<ItemStack> ores = OreDictionary.getOres(recipe.ingredients[i]);
                for (int i2 = 0; i < ores.size(); i++) {
                    if (matrix.getStackInSlot(i).getItem() == ores.get(i2).getItem()) {
                        matrix.decrStackSize(i, recipe.amounts[i2]);
                    }
                }
                if (currentItem.getItem().hasContainerItem(currentItem)) {
                    ItemStack containerItem = currentItem.getItem().getContainerItem(currentItem);

                    if (containerItem.isItemStackDamageable() && containerItem.getItemDamage() > containerItem.getMaxDamage()) {
                        MinecraftForge.EVENT_BUS.post(new PlayerDestroyItemEvent(player, containerItem, EnumHand.MAIN_HAND));
                        containerItem = null;
                    }

                    if (containerItem != null || !player.inventory.addItemStackToInventory(containerItem)) {
                        if (matrix.getStackInSlot(i) == null) {
                            matrix.setInventorySlotContents(i, containerItem);
                        } else {
                            player.dropItem(containerItem, false);
                        }
                    }
                }
            }
        }
    }
}

Recipe class:

public class CulinaryWorkbenchRecipe {

    public String[] ingredients;
    public int[] amounts;
    public ItemStack output;
    public Boolean shaped;

    public CulinaryWorkbenchRecipe(String[] ingredients, int[] amounts, ItemStack output, Boolean shaped) {
        this.ingredients = ingredients;
        this.output = output;
        this.amounts = amounts;
        this.shaped = shaped;
    }
}

I don't think much else is needed.

(I plan to add recipes to a list in my main class, and add shaped/shapeless ore dict. recipes. I know I can have a class extend IRecipe but I don't think I need to)

Edited August 4, 20187 yr by Big_Bad_E

Update: My problem was the output slot and the first slot both had an index of 0. I solved this by making an index variable and increasing it by 1 when I add a slot. Also, I made it to where I get the GUI's name from the lang, so yeah.

 

Edit: Also, to my problem of not letting people put items in the output slot, I just made an extension of Slot, and overrided isItemValid().

Edited August 4, 20187 yr by Big_Bad_E

This stuff got really painful for me (I was however trying to save the items to another inventory)

hope my code helps you

https://github.com/Cadiboo/WIPTech/blob/master/src/main/java/cadiboo/wiptech/inventory/ContainerAssemblyTable.java