Cool project! The site is pretty laggy on firefox.
My resolution is 1440p and making the game fullscreen causes a noticable framerate drop. I don't notice the issue on Chromium.
Figured you might want to know.
Figured you might want to know.
Another tip is to make scrolling or some keyboard buttons rotate the pieces, snapping to 90° angles would be a good start. Making the pieces only snap when placed down instead of just when they are close to a compatible piece might also be good.
These things could be togglable or vary between the difficulty modes.
In any case, cool project and good luck with it!