The usual scaling methods don't discriminate edge pixels vs center pixels, so you won't be able to achieve what you want. However, this looks like a problem for the 9-patch images. You can read about them here: http://wiresareobsolete.com/2010/06/9-patches/ There is a Love2d library that you might t...

First of all, +1 to what CRxTRDude said. I had to put a random tile set in in order to make it run. Second thing: the strange vertical artifact with half-full rightmost column is not related to anything else, it is just that your "tileSet" is too small. You initialize it for tileDisplayWid...

I totally agree with what chezrom said. Below is a short snippet with a possible implementation of findOptimal that predicts where the ball will hit the paddle. Note that I didn't include chezrom's modifications, you should try merging the code if you want. function findOptimal() for i = 1, #potenti...

You need to call "update" for the animation, not just "draw". Currently it never moves on from the first frame. This can be fixed by simply adding:
to the end of your update function.