Right here we go once more! One other day, one other bizarre solution to play Doom . This time it’s not an obscure IoT gadget or retro laptop that’s operating everybody’s favourite demon-blasting FPS recreation. Michael Ayles has executed one thing far stranger and fewer sensible than that by combining KiCad and Doom into one bundle. Should you want a break from working in your PCB design, now you received’t even have to shut KiCad to do some gaming.
Ayles’ creation, referred to as KiDoom, technically doesn’t run Doom — that’s dealt with by the standard recreation engine by way of the doomgeneric supply code port. Nonetheless, KiCad’s PCB Editor is used because the frontend, displaying the graphics one of the simplest ways it is aware of how. What it is aware of, in fact, is PCBs. As such, copper traces had been drawn to characterize partitions, whereas part footprints served as enemies, well being packs, and different recreation objects. Be careful for these QFP-64 chips! These are the unhealthy guys.
As an alternative of making an attempt to render Doom pixel-by-pixel — which preliminary checks confirmed would crawl alongside at roughly 0.15 FPS — Ayles realized that the unique engine already builds geometry as vectors. PCB traces, in any case, are simply vectors in copper. By extracting wall and sprite information immediately from the sport’s drawsegs[] and vissprites[] constructions, KiCad solely has to replace 100–300 line segments per body as an alternative of pushing tens of hundreds of pixels. That effectivity is what makes this weird experiment playable, clocking in at round 10–25 frames per second, relying on the {hardware}.
It’s arduous to name KiDoom helpful, however that’s probably not the purpose. Doom has been run on every part from printers to oscilloscopes, and this mission raises the bar in its personal distinctive means. And when you’ve received nothing higher to do that weekend, you possibly can strive it out for your self .Enjoying Doom in KiCad (📷: Michael Ayles)
