So this is a bit tricky. I know I've been spamming up the forums lately, but here's yet another problem I can't solve.

 

I have successfully created a block and a GUI with container, however, I cannot get the custom crafting methods right. Essentially, I want to take two items and be able to combine them into one, but they don't craft. Nothing appears in the "result" slot, index 2. Image of GUI below for reference.

 

My custom crafting class:

https://github.com/ModMCdl/Magitech/blob/master/src/main/java/com/modmcdl/magitech/recipe/PestleRecipe.java

My Tile Entity:

https://github.com/ModMCdl/Magitech/blob/master/src/main/java/com/modmcdl/magitech/tileenitity/TileEntityPestle.java

My Container:

https://github.com/ModMCdl/Magitech/blob/master/src/main/java/com/modmcdl/magitech/gui/ContainerPestle.java

My Block:

https://github.com/ModMCdl/Magitech/blob/master/src/main/java/com/modmcdl/magitech/blocks/BlockPestle.java

 

If another class is needed, they're all in the github there.

 

 

Edited November 6, 20177 yr by ModMCdl
Still not solved...

1) Don't useIInventory. Use an IItemhandler (ItemStackHandler for most use-cases).

2) You never call TileEntityPestle#craftItem.

why do you cast ItemStack here https://github.com/ModMCdl/Magitech/blob/master/src/main/java/com/modmcdl/magitech/tileenitity/TileEntityPestle.java#L106

i dont think you can use a HashBasedTable here because the hashcode from the itemstacks are different  https://github.com/ModMCdl/Magitech/blob/master/src/main/java/com/modmcdl/magitech/recipe/PestleRecipe.java#L17

21 minutes ago, loordgek said:

i dont think you can use a HashBasedTable here because the hashcode from the itemstacks are different 

FurnaceRecipes uses a HashMap themselves so that's not the issue, because you never actually compare the hashcodes of the ItemStacks (HashMap#contains*()), just the ItemStacks themselves (going through the entry Set and compare them yourself).

2 hours ago, loordgek said:

why do you cast ItemStack here https://github.com/ModMCdl/Magitech/blob/master/src/main/java/com/modmcdl/magitech/tileenitity/TileEntityPestle.java#L106

i dont think you can use a HashBasedTable here because the hashcode from the itemstacks are different  https://github.com/ModMCdl/Magitech/blob/master/src/main/java/com/modmcdl/magitech/recipe/PestleRecipe.java#L17

The ItemStack is referring to the two input slots in my TileEntity, and I pretty much frankensteined the code from the furnace, which uses the HasBasedTable. The reason I used this instead of the workbench was because I was a bit more familiar with TileEntities, and I could not find an example relating to the workbench that was newer than 1.7.10. (and I hate having to scour the web to find named versions of all the various unnamed funcs and fields).

2 hours ago, larsgerrits said:

1) Don't useIInventory. Use an IItemhandler (ItemStackHandler for most use-cases).

2) You never call TileEntityPestle#craftItem.

I'll be honest, I'm confused. I can understand most of the reason behind using IItemHandler, but I don't understand where I need to call that TileEntity reference. This is a relatively new thing for me here, so I'm probably asking a stupid question.

You reference that I never compare the hashcodes of my two ItemStacks. I'm confused as by how to exactly implement that. Could you possibly provide an example of where and when?

1 minute ago, ModMCdl said:

I don't understand where I need to call that TileEntity reference.

Everywhere you want to trigger the crafting of the Item. If you want pestle to check for a crafting recipe every tick implement the ITickable interface on your TileEntityPestle and call it in the ITickable#update method.

 

5 minutes ago, ModMCdl said:

You reference that I never compare the hashcodes of my two ItemStacks. I'm confused as by how to exactly implement that. Could you possibly provide an example of where and when?

That was in response to @loordgek for suggesting the recipe class is at fault because of a hash-based solution. I told him that most likely wasn't the issue, as you aren't using the HashMap#contains*() functions to check for recipes, and so you never check based on the hash of the ItemStack.

14 minutes ago, larsgerrits said:

Everywhere you want to trigger the crafting of the Item. If you want pestle to check for a crafting recipe every tick implement the ITickable interface on your TileEntityPestle and call it in the ITickable#update method.

 

That was in response to @loordgek for suggesting the recipe class is at fault because of a hash-based solution. I told him that most likely wasn't the issue, as you aren't using the HashMap#contains*() functions to check for recipes, and so you never check based on the hash of the ItemStack.

I tried overriding update, but It wouldn't let me. I'll check again, maybe I'm just an idiot. 

Was typing that when I decided to read the first part and implement ITickable. That's probably my issue here. I thought it wasn't necessary, because I wouldn't be using methods for smelting time and such. Also, are you saying I need to call my TileEntity in my custom crafting class, or call it through ITickable to check for new crafting items.

(I know some of these questions are probably really stupid, but I'm just trying to learn here. This is new, and I couldn't find a decent tutorial or coherent example).

1 hour ago, larsgerrits said:

If you want pestle to check for a crafting recipe every tick implement the ITickable interface on your TileEntityPestle and call it in the ITickable#update method.

Alright, after a lot of experimentation and fails, I can't quite figure out how this update thing works, or more precisely, how to make it work in my case. Could you please give an example?(Not asking for you to do it for me, more of like a brief rundown of how one would do it).

Edited November 4, 20178 yr by ModMCdl

17 minutes ago, ModMCdl said:

Alright, after a lot of experimentation and fails, I can't quite figure out how this update thing works, or more precisely, how to make it work in my case. Could you please give an example?(Not asking for you to do it for me, more of like a brief rundown of how one would do it).

At the top of your class add "implements ITickable"

Let your IDE underline it in red.

Pick the only suggested solution that makes any sense "implement the interface")

One of the methods added automatically will be one called Update

4 minutes ago, Draco18s said:

At the top of your class add "implements ITickable"

Let your IDE underline it in red.

Pick the only suggested solution that makes any sense "implement the interface")

One of the methods added automatically will be one called Update

Yeah I got that. I'm just unsure what to do with it now. (As in what to call to specifically only update the recipes)

Look at the furnace.

1 minute ago, Draco18s said:

Look at the furnace.

I did, and I had omitted all of the "tickable" methods, because I didn't think they were needed unless I was doing some form of cooking? Would all I need from the furnace be the isRemote statement regarding the furnaceItemStacks, instead using that with my Pestle Recipes? Most of my code is frankensteined from the furnace, but I really have no idea what to do here.

If you're not cooking it over time, then you don't need ITickable.

2 minutes ago, Draco18s said:

If you're not cooking it over time, then you don't need ITickable.

That's what I thought, but now I'm lost. If you look above, I was informed I needed the update method to check the crafting recipe list each time I wanted to craft something. The only way to do this was through ITickable. Now, you're saying I don't need it, which puts me back to square one. Since you have never failed me before, Draco, (and if you haven't already), take a look at my original post and git and see if you can tell where I'm going wrong?

You don't need to check for a result every tick. You only need to do it when the inventory changes.

2 minutes ago, Draco18s said:

You don't need to check for a result every tick. You only need to do it when the inventory changes.

...so what method would I call upon to do that, if not ITickable. Sorry, I feel stupid. 

Edited November 4, 20178 yr by ModMCdl

23 minutes ago, ModMCdl said:

I was informed I needed the update method to check the crafting recipe list each time I wanted to craft something. The only way to do this was through ITickable

I told you this: 

2 hours ago, larsgerrits said:

If you want pestle to check for a crafting recipe every tick implement the ITickable interface

 

If you don't want to check every tick, don't implement ITickable.

 

9 minutes ago, ModMCdl said:

so what method would I call upon to do that

 

If you use an ItemStackHandler (again, use it instead of IInventory), you can make an anonymous subclass (is that what you call it?) or a normal subclass and override the ItemStackHandler#onContentsChanged method to call the TileEntityPestle#craftItem method.

Edited November 4, 20178 yr by larsgerrits

Just now, larsgerrits said:

I told you this: 

If you don't want to check every tick, don't implement ITickable.

 

If you use an ItemStackHandler (again, use it instead of IInventory), you can make an anonymous subclass (is that what you call it?) or a normal subclass and override the ItemStackHandler#onContentsChanged method to call the TileEntityPestle#craftItem.

So I have to re-write my old code with IItemHandler, which doesn't implement the same methods? Damn, that's gonna be a pain.

5 minutes ago, ModMCdl said:

So I have to re-write my old code with IItemHandler, which doesn't implement the same methods? Damn, that's gonna be a pain.

Not really. It's way easier actually.

 

Remove everything related to IInventory, and make a single instance of ItemStackHandler:

public ItemStackHandler inventory = new ItemStackHandler(INVENTORY_SIZE);

Everything related to the inventory is now inside that, and you can call various methods to interact with it.

 

If you want other machines to be able to manipulate your inventory, look at the docs to see how to expose your capability.

Edited November 4, 20178 yr by larsgerrits

2 minutes ago, larsgerrits said:

Remove everything related to IInventory, and make a single instance of ItemStackHandler:

Se essentially replace my NonNullList with that? If I'm not mistaken, that's what would change my inventory instance? Because doing that errors almost every instance of inventory I use...

9 minutes ago, ModMCdl said:

Se essentially replace my NonNullList with that?

Yes.

 

9 minutes ago, ModMCdl said:

Because doing that errors almost every instance of inventory I use...

Not only remove the "implements IInventory", but also every method you have to override from that. The only issues you'll have are in your TileEntityPestle#craftItem method and the ContainerPestle class.

 

Take a look at my TileEntity class, it has an ItemStackHandler with anonymous subclass: https://gist.github.com/Larsg310/0bafea64ccac7280f32158dc52ead2a2

Edited November 4, 20178 yr by larsgerrits

11 minutes ago, larsgerrits said:

Yes.

 

Not only remove the "implements IInventory", but also every method you have to override from that. The only issues you'll have are in your TileEntityPestle#craftItem method and the ContainerPestle class.

Oh, I see. So I'm no longer overriding IInventory, but instead solely using ItemStackHandler. 

 

But now what do I do with the canCraft and craftItem methods? You mentioned issues, but wouldn't that completely error them out because they rely on all the methods from IInventory?  Would I just replace .get with.getStackInSlot? And creategetInventoryStackLimit as my own method rather than an override?

 

Then I could just cast all of the methods in my other classes to IInventory?

Edited November 4, 20178 yr by ModMCdl

You call ItemStackHandler#getStackInSlot instead of NonNullIList#get to get stuff out of your inventory.

 

Instead of using the IInventory#getInventoryStackLimit method, you should override ItemStackHandler#getSlotLimit inside of an (anonymous) subclass of ItemStackHandler. Take a look at my previous edit for a link in which I do the same.

Edited November 4, 20178 yr by larsgerrits

14 minutes ago, larsgerrits said:

Instead of using the IInventory#getInventoryStackLimit method, you should override ItemStackHandler#getSlotLimit inside of an (anonymous) subclass of ItemStackHandler. Take a look at my previous edit for a link in which I do the same.

Alright, but what do I do about all of my other classes? My Container, GUI, and Block were all built around the original version. Am I casting those toIInventory? And what about my block'scanInteractWith?

Edited November 4, 20178 yr by ModMCdl

46 minutes ago, ModMCdl said:

Alright, but what do I do about all of my other classes? My Container, GUI, and Block were all built around the original version. Am I casting those toIInventory? And what about my block'scanInteractWith?

Instead of using Slot you use SlotItemHandler and instead of casting to IInventory you use getCapability().