Press the green flag to start, then WS/UP DOWN make you go up and down, AD are the strafing keys (left and right without turning), LEFT and RIGHT are the turning keys and M is map. 0 is stop all. (Just in case you don't want to press the stop sign.) And C is coordinates. If you're on mobile or low end device go to: https://turbowarp.org/872553820/fullscreen?fps=120 for faster version.
--------------------------------------------------------------------------------- Credits --------------------------------------------------------------------------------- @griffpatch for a tutorial on how to make this. Me for the level --------------------------------------------------------------------------------- Experiments --------------------------------------------------------------------------------- Resolution 2 --------------------------------------------------------------------------------- How it works --------------------------------------------------------------------------------- https://en.wikipedia.org/wiki/Ray_casting ---------------------------------------------------------------------------------