[1.12.2] Chest empty when retrieving capability

[Kantaga]

For a feature in my mod, I need to loop through a (trapped) chest, and count the total number of items in the inventory.

For some reason, it will always result to 0, even if there are items in the inventory.

When using the debugger, and look at the inventory inside the capability, all slots show "1xtile.air@0"

 

This is my code for the function. Outside the function I already ensure that there is a chest at the position.

private int countChest(BlockPos pos) {
        TileEntityChest chest = (TileEntityChest) world.getTileEntity(pos);
        IItemHandler capability = chest.getSingleChestHandler();
        int val = 0;
        for(int i = 0; i < capability.getSlots(); i++) {
            val += capability.getStackInSlot(i).getCount();
        }
        return val;
    }

 

[Draco18s]

Are you doing this client side or server side?

[Kantaga]

Currently it executes after a press on a GUI button, so it's client side.

[Draco18s]

The client doesn't know what is in a chest unless that chest is opened.

[Kantaga]

So that would mean I either have to execute the program on the server-side, or I have to somehow retrieve the contents of the chest from the server. How would I go by doing that?

[Cadiboo]

How would you go about doing which one?

[Kantaga]

I've used the documentation on SimpleImpl to send it to the server-side, and it is now fixed. Thank you for helping me.