display percentages without needing to load a bunch of costumes. at 2 stamps and 3 costumes, this is about as lean as it gets. while pure pen would technically be lighter, it wouldn't allow for fancy spritework. additionally. this method can easily be extended to use clones instead of the pen layer, a trait important if you need bars to display above sprites or if the bitmap scaling problems that occur in fullscreen are unacceptable. the idea is to draw a half-filled bar as a base layer and adjust it as needed using a mask layer. the mask layer covers up the filled portion of the base-layer when below 50% and adds to the filled portion when above 50%. I set things up such that the mask layer's position is always `value` units to the right of the base layer. in this demo, the top bar shows the base layer while second demonstrates how the mask layer interacts with it. the arrows represent the x-coordinate of the sprite's origin. since I see people using my old health bar project from time to time I figured I'd release an updated version that's more efficient. since it's meant to be a successor to that project, I left things pretty simple inside despite my gut telling me to throw in a few more complex optimizations like only updating bars when values change. if you plan to use this project directly, just delete the 3 demo costumes and it will draw as a single bar instead of the multiple demonstration bars. note that you can absolutely draw multiple bars to the screen by calling the procedure more than once without erasing the pen layer. that should more or less cover it, though as always if you have any questions I'll be happy to help.
