[1.11.2][Solved] Cannot cast from boolean to ItemStack

[ModMCdl]

Hey, I'm trying to set up my custom crafting tile entity, and I cannot find out why I'm getting this error: Cannot cast from boolean to ItemStack

	private boolean canCraft() {
		if(((ItemStack)this.inventory.get(0).isEmpty() || ((ItemStack)this.inventory.get(1).isEmpty()))) //this line errors
			return false;
		else {
			ItemStack result = PestleRecipe.instance().getPestleResult((ItemStack)this.inventory.get(0), (ItemStack)this.inventory.get(1));
			
			if(result.isEmpty())
				return false;
			else {
				ItemStack output = (ItemStack)this.inventory.get(3);
				
				if(output.isEmpty()) return true;
				if(!output.isItemEqual(result)) return false;
				int res = output.getCount() + result.getCount();
				return res <= getInventoryStackLimit() && res <= output.getMaxStackSize();
				
			}
					
		}

	}

Nothing else is broken, just this small bit.

 

Thanks

Edited November 2, 2017 by ModMCdl
Solved

[aw_wolfe]

Because isEmpty() returns a boolean. and then you are trying to cast that boolean to (ItemStack)

 

[larsgerrits]

(ItemStack)this.inventory.get(0).isEmpty() 

 

Well... you can cast a boolean to an ItemStack because a boolean isn't an ItemStack...

 

You probably wanted to cast the result ofinventory.get(0) to ItemStack, and check that ItemStack#isEmpty().

[ModMCdl]

  On 11/2/2017 at 5:31 PM, aw_wolfe said:

Because isEmpty() returns a boolean. and then you are trying to cast that boolean to (ItemStack)

 

Expand  

Wow. I can't believe I missed that. (Essentially, I guess I put my parenthesis in the wrong place lol). The fixed code looks like this to those who are having a similar issue.

	if(((ItemStack)this.inventory.get(0)).isEmpty() || ((ItemStack)this.inventory.get(1)).isEmpty())

 

  On 11/2/2017 at 5:33 PM, larsgerrits said:

(ItemStack)this.inventory.get(0).isEmpty() 

 

Well... you can cast a boolean to an ItemStack because a boolean isn't an ItemStack...

 

You probably wanted to cast the result ofinventory.get(0) to ItemStack, and check that ItemStack#isEmpty().

Expand  

And a boolean would be used to do this, as the solution above depicts.