[1.10.2] Ticking an inventory inside an item?

[AnZaNaMa]

So, I've been following this tutorial on making an item have an inventory. I've completed it and got it all working and such, but now I want to be able to access the inventory from the item in its onUpdate method. Basically, I'm making a handheld "generator" that you put fuel in and while it's in your inventory, it ticks and burns up fuel to put power into the player holding it (via nbt). I'm not sure how I can gain access to the inventory/container from the item that holds it. Sorry if any of this doesn't make sense. I've been up all night modding

 

Tutorial: https://github.com/coolAlias/Forge_Tutorials/blob/master/InventoryItemTutorial.java

Item Class: https://github.com/AnZaNaMa/EverythingInBetween/blob/master/src/main/java/com/anzanama/everythinginbetween/Common/item/ItemPersonalGenerator.java

Custom Inventory Class: https://github.com/AnZaNaMa/EverythingInBetween/blob/master/src/main/java/com/anzanama/everythinginbetween/Common/Inventory/InventoryPersonalGenerator.java

Custom Container Class: https://github.com/AnZaNaMa/EverythingInBetween/blob/master/src/main/java/com/anzanama/everythinginbetween/Common/Container/ContainerPersonalGenerator.java

[Animefan8888]

You csnt access the items container as a new onstance is created every time, same with the inventory h9wever you can access the nbt.

[AnZaNaMa]

is this really the only way to do it? it seems very....wrong

 

also, the fact that any time I change an itemstack by using NBT directly, I have to manually change the NBT to reflect those changes is very finnicky.

[Animefan8888]

Yes it is the only way as items dont have a "TE" to work with you must handle it directly through nbt

[Matryoshika]

Why do this only from the inventory? Why not just start it from the inventory, and handle everything in the item itself?

When you put something in the container, make it turn a boolean in the held item from "empty" = true, to "empty" = false; There, that states if it has something in it. If you never made a custom slot, (not sure if this is still an issue in 1.10.2, only did this back in 1.7.10) you can put any item inside, which would be bad. (Remember to cast the item to your own item to get access to the boolean, from the container)

 

So: you know how long the fuel lasts, and you know if the item has fuel or not. Every tick, countdown the lifetime left of the fuel, in the item's onUpdate, or a derivative method, and make it output energy.

 

If it runs out of energy, or everything that can use the energy is full, make it stop in it's tracks, and be "frozen" until it is refilled, or can output again. (Unless you want it to keep going nevertheless)

 

[AnZaNaMa]

I am using whatever vanilla's furnace fuel slot is, so that's not really a problem.

I have it to the point where it burns fuel perfectly, but I'm realizing that the GUI is only updating when I open it. How can I make it constantly update as long as it's open?

[Choonster]

You should a Capability to store an

IItemHandler

inventory instead of using the old-style

IInventory

loaded from and saved to the

ItemStack

's compound tag. This will store the inventory contents as objects and only write to NBT when the

ItemStack

is being saved.

 

The Bit Bag from Chisels and Bits uses

IItemHandler

for its inventory, you can see its implementation here and here.

 

I have a vanilla-style chest that uses

IItemHandler

here (all related classes are in the same repository).

 

I have some custom capabilities here: API, implementation

[AnZaNaMa]

I'm too tired to understand anything i'm looking at right now. I'll look into this tomorrow. thanks!

[Draco18s]

Not sure if this would help, but I have a monster spawner that needs to keep track of time till the next spawn even if it's chunk isn't loaded. I get the system time when the chunk is loaded and compare it with the next time the chunk gets loaded.

 

You realize that in SSP the game can be paused, right? If you were to stand on the spawner, hit escape, and walk away for a few hours, as soon as you resumed paying, you'd get a dozen spawns immediately.

[Draco18s]

Something something something getTotalWorldTime() something something...