I'm trying to check if an ItemStack has the FluidHandler capability.

For that I tried using this:

		boolean hasCap = stack.hasCapability(CapabilityFluidHandler.FLUID_HANDLER_CAPABILITY, null);

The ItemStack passed was a ItemWaterBucket. I've also tried it using forge filled buckets, but both alway return false. Am I checking for the wrong capability?

Fluid handler items use CapabilityFluidHandler.FLUID_HANDLER_ITEM_CAPABILITY instead of CapabilityFluidHandler.FLUID_HANDLER_CAPABILITY.

 

I'm not sure exactly what you're doing with the fluid handler item, but you may want to check if the FluidUtil class already has a method that does what you want.

Thanks, was wondering what  FLUID_HANDLER_ITEM  was for... Also didn't know about FluidUtil. Is there also a ItemHandlerUtil of some sort for ItemStackHandlers?

Just now, Tschipp said:

Is there also a ItemHandlerUtil of some sort for ItemStackHandlers?

 

Yes, ItemHandlerHelper.

Thanks. One more thing:

This doesn't seem to drain the bucket:

FluidUtil.getFluidHandler(heldItem).drain(1000, true);

the FluidHandler isn't null, i do that check beforehand. What am I missing?

20 minutes ago, Tschipp said:

Thanks. One more thing:

This doesn't seem to drain the bucket:

FluidUtil.getFluidHandler(heldItem).drain(1000, true);

the FluidHandler isn't null, i do that check beforehand. What am I missing?

If I recall correctly, the second parameter of the drain method is about whether it'll be simulated(to check the validity) or the change is actually applied. So it should be false in your csse.

4 minutes ago, Abastro said:

If I recall correctly, the second parameter of the drain method is about whether it'll be simulated(to check the validity) or the change is actually applied. So it should be false in your csse.

I've tried both true and false, still doesn't empty the bucket.

 

8 minutes ago, Tschipp said:

I've tried both true and false, still doesn't empty the bucket.

 

Well, I recalled it incorrectly

What did you get as return from the method?

getFluidHandler returns a IFluidHandlerItem, which isn't null. drain returns a FluidStack, the stack that supposedly was drained, also correct.

Block#onBlockActivated, but only if !world.isRemote

 

else if(hasFluid(heldItem, BlockHandler.fluidSlop) && te.itemHandler.getStackInSlot(0).isEmpty())
		{
			te.fluidHandler.fill(new FluidStack(BlockHandler.fluidSlop, 1000), true);
			worldIn.playSound(null, pos.getX(), pos.getY(), pos.getZ(), SoundEvents.BLOCK_SLIME_PLACE, SoundCategory.PLAYERS, 0.6F, 0.8F);
			if(!playerIn.isCreative())
			{
				FluidStack fluid = FluidUtil.getFluidHandler(heldItem).drain(1000, true);
			}
			return true;

		}

 

Edited May 9, 20178 yr by Tschipp

@Override
	public boolean onBlockActivated(World worldIn, BlockPos pos, IBlockState state, EntityPlayer playerIn,
			EnumHand hand, EnumFacing facing, float hitX, float hitY, float hitZ) {

		ItemStack heldItem = playerIn.getHeldItem(hand);
		
		TileEntityTrough te = (TileEntityTrough) worldIn.getTileEntity(pos);

		if (worldIn.isRemote) {
			return true;
 
		}  
		//SOLIDS
		else if(!heldItem.isEmpty() && heldItem.getItem() == Items.WHEAT)
		{
			if((!te.itemHandler.getStackInSlot(0).isEmpty() && te.itemHandler.getStackInSlot(0).getCount() < 3) || te.itemHandler.getStackInSlot(0).isEmpty() && te.fluidHandler.getFluid() == null)
			{
				te.itemHandler.insertItem(0, new ItemStack(Items.WHEAT), false);
				if(!playerIn.isCreative())
					heldItem.shrink(1);
				return true;
			}

		}
		//LIQUIDS
		else if(hasFluid(heldItem, FluidRegistry.WATER) && te.itemHandler.getStackInSlot(0).isEmpty())
		{
			te.fluidHandler.fill(new FluidStack(FluidRegistry.WATER, 1000), true);
			worldIn.playSound(null, pos.getX(), pos.getY(), pos.getZ(), SoundEvents.ITEM_BUCKET_EMPTY, SoundCategory.PLAYERS, 0.6F, 0.8F);
			if(!playerIn.isCreative())
				FluidUtil.getFluidHandler(heldItem).drain(1000, true);
			return true;

		}
		else if(hasFluid(heldItem, BlockHandler.fluidSlop) && te.itemHandler.getStackInSlot(0).isEmpty())
		{
			te.fluidHandler.fill(new FluidStack(BlockHandler.fluidSlop, 1000), true);
			worldIn.playSound(null, pos.getX(), pos.getY(), pos.getZ(), SoundEvents.BLOCK_SLIME_PLACE, SoundCategory.PLAYERS, 0.6F, 0.8F);
			if(!playerIn.isCreative())
			{
				FluidStack fluid = FluidUtil.getFluidHandler(heldItem).drain(1000, true);
			}
			return true;

		}
		return false;

	}

 

14 minutes ago, diesieben07 said:

The IFluidHandlerItem might have to create a new ItemStack to allow for the modifications (e.g. when emptying a vanilla bucket, because they are different items). You can access the "up to date" stack with IFluidHandlerItem::getContainer. In this case you have to put it back in the player's hand.

That did the trick, thanks!