Hi there,

 

I've implemented an Item with a 1-slot inventory using capabilities. The inventory is then accessible through a GUI on item right click. Everything seems to work fine, but I've observed that the `serializeNBT()` method is fired too often (every tick apparently) when the item is in the players' inventory, even though I do not fire at all such method manually (afaik...).

 

Is this the expected behaviour of the capabilities system, or am I missing or wrongdoing something? 

 

Thanks in advance

 

 

public class MyItem extends Item {
		
	public MyItem(){
		super();
	}
	
	@Override
	public ActionResult<ItemStack> onItemRightClick(World world, EntityPlayer player, EnumHand hand){
		ItemStack stack = player.getHeldItem(hand);

		if(!world.isRemote)
			player.openGui(MyMod.instance, 0, world, (int)player.posX, (int)player.posY, (int)player.posZ);

		return ActionResult.newResult(EnumActionResult.PASS, stack);
	}
	
	@Override
	public ICapabilityProvider initCapabilities(ItemStack item, NBTTagCompound nbt)
	{
		if(item.getItem() instanceof MyItem)
		{
			return new MyCapabilityProvider();
		}
		return null;
	}
	
	public class MyCapabilityProvider implements ICapabilityProvider, ICapabilitySerializable<NBTTagCompound> {

		private final IItemHandler inventory;
		
		public MyCapabilityProvider(){
			inventory = new ItemStackHandler(1);
		}
		
		@Override
		public NBTTagCompound serializeNBT() 
		{
			return ((ItemStackHandler)inventory).serializeNBT();
		}

		@Override
		public void deserializeNBT(NBTTagCompound nbt) 
		{
			((ItemStackHandler)inventory).deserializeNBT(nbt);
		}

		@Override
		public boolean hasCapability(Capability<?> capability, EnumFacing facing) 
		{
			if (capability == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY)
				return true;
			
			return false;
		}

		@Override
		public <T> T getCapability(Capability<T> capability, EnumFacing facing) 
		{
			if(capability == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY)
			{
				return (T)inventory;
			}
			return null;
		}
	}
}

Edited June 25, 20205 yr by logalu
Marked as solved

Thanks for the reply. Good to know I didn't cause this, not so good to know this is unavoidable, but it is what it is

 

Marking as solved