Jitter be gone

Entry posted by SpiceWare in Draconian May 2, 2014

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ARM routine InitLevel() is now run mid-screen to eliminate problem where OverScan occasionally ran out of time
screen shifted down to give more time to Vertical Blank
player shots are faster
station shots are slower, and once again deadly
asteroid explosions are no longer deadly. They're also faster than mine explosions. Non-Deadly explosions are now drawn in white.

Have not seen any jitter since making these changes. Let me know if you encounter any as I may need to shift the screen down another scanline or two.

If you hold RESET you can visually see how long the ARM routine InitLevel() takes to run, it's denoted by the white bar at the top of the screen. You'll notice that it varies by a scanline or two, this is due to the routines randomly positioning the asteroids and mines and having to sometimes reposition them to prevent objects from overlapping.