Hey! So here's a super completely unfinished look at something you'll have to convince me to finish if you want it: Dungeon Dash! WASD to scroll around, Mouse to toggle block type. 'F' is kinda a reset type thing if it breaks...
This is just a scrolling engine (No border?! Whaa?!?! :O) and also the auto-tiling engine, which I've never successfully done either of without extreme lag. Auto-tiling: So yeah, there's basically 47 costumes for the walls, meaning the code needs to be able to figure out which one based on itself and the surrounding 8 blocks, so I have a big list, tileNeighborData, with all the info for each case, which it sorts through for each tile.