This is an optimized version of my raycaster. A raycaster creates a 3D rendering from a 2D map or array. It does this by shooting rays for each vertical line of the screen (for speed, this raycaster does every 4 vertical lines) and marks the distance from the player position to the wall (gotten from the ray). This raycaster also supports lighting. This optimized version is about 10x faster than my old one. I optimized the raycasting cycle by removing unnecessary variables that were being used, and also now 5 raycasters are working in unison, speeding it up even more. I didn't write the original code for this raytracer; the original code was written in BlitzBasic. I simply ported it over to Scratch and hugely optimized it.
