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(author) Hey, thanks! That Crystal Castles hack sounds great, by the way. Much more arcade-correct!
by classichasclass 4y ago
(author) Hey, thanks! That Crystal Castles hack sounds great, by the way. Much more arcade-correct!
- MarkusWandel 4y agoFor what it's worth, the game was pretty straight code, and didn't use the timer interrupt at all. I was able to crank up the rate of that, to successfully poll the quadrature signals from the trackball (in trackball, not virtual joystick mode). And then pulse modulate a virtual joystick register appropriately and patch the game to read that instead of the real one. Amazingly this worked well, especially because the movement in the original joystick mode was way too fast so a good range of speeds was possible. Directions other than X/Y were combinations of small X/Y steps.