Re: A83: Need a vertical clipping AND sprite routine
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Re: A83: Need a vertical clipping AND sprite routine
Yeah, inverting would be VERY slow, also, you would have to do INVERT, COPY
TO THE SCREEN, AND INVERT AGAIN to restore it black on white to work as
before :( Very slow....
>From: "D Weiss" <dwedit@hotmail.com>
>
>
>um...INVERTING SLOW! Besides, I already have the routine written...
>(modified Crashman's one)
>
>>From: "David Phillips" <david@acz.org>
>>
>>Maybe you could try inverting the screen at the end, as you're copying the
>>double buffer?
>>
>> > Well, I needed an AND routine because I'm drawing white sprites onto a
>>black
>> > background, and XORing causes 2 sprites to become invisible if they
>>take
>>the
>> > same space. Drawing white sprites onto a dark backround allows a fast
>> > moving game on lower contrast (lower batteries).
>>
>>
>>
>
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