Eckhard Stolberg wrote:
> Writing code that changes the colour of a freely moving sprite
> always at the same pixel is practically impossible. This trick
> only makes sense for stationary objects. I don't know of any
> games that change the sprite colour while it is being drawn,
> but Qbert changes the playfield colour several times per scanline
> for displaying the pyramid.
Yes, it would only be possible if the sprite was only allowed
to move at a poorer "resolution" - in other words, the sprite
would have to move, say, in multiples of 3? pixels at a time,
left and right. Still, it would occupy far too much processor
time for what the effect is worth.
--
Robin Harbron macbeth@xxxxxxxxxxx
http://www.tbaytel.net/macbeth
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