Armed only with William Tang’s “Spectrum Machine Language for the Absolute Beginner”, I’ve somehow thrown together my first piece of Spectrum Machine Language programming in the form of a very simple Raycaster for Sir Clive’s wonder machine. Upfront, this isn’t a game, but a proof of concept that runs with snail pace with all the grace of a PowerPoint, heavy on the slide transitions. There are also a *lot* of graphical glitches, particularly when close up walls and when the intercept angle of the ray with a wall is small in certain grid directions. All of these are because I’ve done my best approximating to avoid needing to use floating point math and it shows…