Re: A85: Sliding Pixels
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Re: A85: Sliding Pixels
On Tue, 6 Oct 1998 PXGray@aol.com wrote:
> In a message dated 10/6/98 1:22:24 PM US Eastern Standard Time,
> humberto@engr.csufresno.edu writes:
>
> > It depends on the size of your sprites (when you slide from left to right
> > or vice versa) If your sprites are 8 pixels wide then you draw over the
> > sprite (only up 1 pixel) then if you have a background, draw the
> > background where the bottom of the sprite used to be. This way you don't
> > use the graph mem and you have smooth scrolling.
> > Here's a picture if I made no sense..
> >
> > $FC00 ................ -> ..10001001....
> > $FC10 ..10001001...... -> ..10000001....
> > $FC20 ..10000001...... -> ..,,,,,,,,.... <-Uncovered BG
> > $FC30 ................ -> ..............
> >
> > If you're using a sprite routine that supports masking it makes using
> > backgrounds a lot easier. In that case you would just draw you sprite
> > shifted up 1 then redraw the background that was uncovered.
> >
> > -Humberto Yeverino Jr.
>
> This makes absolutely no sense. Can anyone explain it in a simpler form of
> the english language?
>
Sure, but I need a question that isn't as vague as "sliding sprites". Is
there a background? Is it a tile based game? Vague answers for vague
questions...
-Humberto Yeverino Jr.
"I kick ass for the Lord."
-Dead Alive (1992)
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