Switching to Capabilities from IInventory

[Pennyw95]

Hi, I need some help understanding how to use the new capabilities and IItemHandler from the old IInventory / ISidedInventory.

My main source of documentation is this :  https://mcforge.readthedocs.org/en/latest/datastorage/capabilities/

 

 

 

So, what I think I got right is:

The vanilla TileEntity.class already implements ICapabilityProvider

Forge provider the IItemHandler Capability, to use wherever you would use the old interfaces.

Implementing it means overriding getCapability() and hasCapability().  In the TE class?

Make my own implementation of IItemHandler for my inventories (don't use ItemStackHandler).

But then the two methods above don't use it?

 

What goes in my TE class and what goes in a different ad hoc one?

 

[Choonster]

You shouldn't need a custom implementation of

IItemHandler

, just use

ItemStackHandler

.

 

• Create an

  IItemHandler

  field in your

  TileEntity

  to contain its inventory and set it to an instance of

  ItemStackHandler

  . To replicate

  ISidedInventory

  , use a separate

  IItemHandler

  for each group of slots.
  

• Override

  hasCapability

  to return

  true

  when the

  Capability

  is

  CapabilityItemHandler.ITEM_HANDLER_CAPABILITY

  and the inventory can be accessed from the specified

  EnumFacing

  (if you actually care about the facing at all).
  

• Override

  getCapability

  to check if the

  Capability

  is

  CapabilityItemHandler.ITEM_HANDLER_CAPABILITY

  . If it is, return the appropriate

  IItemHandler

  for the specified

  EnumFacing

  .
  

 

In both

hasCapability

and

getCapability

, return the result of the super method when the

Capability

isn't

CapabilityItemHandler.ITEM_HANDLER_CAPABILITY

. This allows external capabilities attached from

AttachCapabilitiesEvent

to be used.

[Pennyw95]

Okay, I feel more confident now...I'll try to get it working on my own, thanks for your help