Re: [stella] lines

Subject: Re: [stella] lines
From: Chris Wilkson - MCD <cwilkson@xxxxxxxxxxxxx>
Date: Wed, 3 Dec 1997 10:40:20 -0800 (PST)
> >Atari 2600 games with oblique or curved lines, like Laser Blast, Missile
> >Command or Fishing Derby have always puzzled me. What is obvious on any
> >other system becomes a challenge on the 2600.
> >I was wandering if there's a more or less "standard" way to draw such
> >lines. What do you think?
> 
> Well, you'd have to use an object for the Missile Command or Laser Blast
> lines.  I'd imagine you'd RESMx at the beginning of the frame, and keep a
> counter during the frame, incrementing it by a certain amount each scanline
> (the amount determines the angle of the line), and when it overflows, do an
> HMOVE by one pixel one way or the other.

How does Stargate do it?  Anyone know?  (I think it's Stargate...)

-Chris



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