Re: A82: Side-Scrolling
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Re: A82: Side-Scrolling
If you want to scroll right, use RR instead of RL
~Adamman
In a message dated 12/12/99 10:15:22 PM Eastern Standard Time,
evil_sam@hotmail.com writes:
> Does anyone have any ideas on how to smooth scroll (pixel by pixel) a
> picture onto the screen horizontally? The only minor snag is that the
> current contents of GRAPH_MEM cannot be deleted as the new data scrolls
onto
>
> the screen (the old data scrolls off as the new scrolls on, and that is
> easily accomplished). The technique I'm using now treats the entire
picture
> as one gigantic sprite. The current screen is GRAPH_MEM, the new screen is
> APD_BUF. It scrolls APD_BUF by changing the x coord and using a hacked
> version of CrASH_Man's PutSprClip that'll automask and work for an entire
> screen. The GRAPH_MEM scrolls off of the screen using a simple routine
> similar to CrASH_Man's Scrolling routines. My technique works, but the
> hacked sprite routine and utility routines take up too much room(~250
bytes)
>
> for such a trivial effect. Zelda will be a pretty tight budget of space,
so
> I really can't afford to waste space unneccessarily. Any thoughts?
> Sam
>
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