Hi Bob,
> That only works for missiles/ball with a height of 1 scanline
> though...right?
Not really but as you pointed out on AA I don't think this will work for you.
The ball/missile can be any height and use the stack method. You would
just make sure you only updated the sprite for a certain number of scan
lines (i.e. 4 height would only do the compare every 4th line).
IIRC your situation is different as the height of the missile/ball is
truely variable. Where as a game like Pong, Breakout, or Combat the height
of the missile/ball is static.
Take care,
Dennis
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