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Re: hi-res graphics animation, dynamically generated shape tables

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On Wednesday, September 28, 2016 at 4:15:46 PM UTC-5, mjm...@aol.com wrote:
> > -Goal
> > 
> > In the context of a game, fire a projectile in the shape of a line, from
> > a dynamic starting location (screen byte & line address), to a dynamic
> > target location (screen byte & line address)  
> > 
> > Ultimately I’m hoping to do something more complex than a simple line
> > (like a lightning bolt), but a line seems like a good proof of concept.
> > Let’s say the line shape is 16 pixels long X 1 pixels wide.

> You can probably get away with only one or two angles besides horizontal
> and vertical, which would allow precomputing the shapes and doing symmetry
> transforms (do one quadrant and reflect the shapes to get the other three).

That's a good point. I'm not really sure how many angles I would need, but maybe it's better to start with this simpler method and see if it gets the job done. 

So let's say I had 4 shape tables, in addition to horizontal and vertical, which contains the lightning bolt at different angles. Would selecting the shape table based on the slope of the hypothetical line between the start and target points be a good approach?

Thanks!

Mark

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hi-res graphics animation, dynamically generated shape tables Mark Lemmert <mark.lemmert@gmail.com> - 2016-09-28 12:20 -0700
  Re: hi-res graphics animation, dynamically generated shape tables Michael J. Mahon <mjmahon@aol.com> - 2016-09-28 16:15 -0500
    Re: hi-res graphics animation, dynamically generated shape tables Mark Lemmert <mark.lemmert@gmail.com> - 2016-09-28 21:47 -0700
      Re: hi-res graphics animation, dynamically generated shape tables Michael J. Mahon <mjmahon@aol.com> - 2016-09-29 12:50 -0500
  Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-09-28 16:27 -0700
    Re: hi-res graphics animation, dynamically generated shape tables Mark Lemmert <mark.lemmert@gmail.com> - 2016-09-28 21:54 -0700
    Re: hi-res graphics animation, dynamically generated shape tables qkumba <peter.ferrie@gmail.com> - 2016-09-29 21:21 -0700
      Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-09-30 00:06 -0700
  Re: hi-res graphics animation, dynamically generated shape tables Mark Lemmert <mark.lemmert@gmail.com> - 2016-10-07 10:23 -0700
    Re: hi-res graphics animation, dynamically generated shape tables Nick Westgate <nick.westgate@gmail.com> - 2016-10-09 16:55 -0700
      Re: hi-res graphics animation, dynamically generated shape tables Mark Lemmert <mark.lemmert@gmail.com> - 2016-10-10 18:07 -0700
        Re: hi-res graphics animation, dynamically generated shape tables Nick Westgate <nick.westgate@gmail.com> - 2016-10-10 19:43 -0700
      Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-10-17 10:19 -0700
        Re: hi-res graphics animation, dynamically generated shape tables Mark Lemmert <mark.lemmert@gmail.com> - 2016-10-17 11:55 -0700
          Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-10-19 18:54 -0700
            Re: hi-res graphics animation, dynamically generated shape tables Mark Lemmert <mark.lemmert@gmail.com> - 2016-10-20 11:17 -0700
              Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-10-20 18:52 -0700
                Re: hi-res graphics animation, dynamically generated shape tables Mark Lemmert <mark.lemmert@gmail.com> - 2016-10-21 15:41 -0700
              Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-10-24 19:15 -0700
    Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-10-17 10:15 -0700
  Re: hi-res graphics animation, dynamically generated shape tables Mark Lemmert <mark.lemmert@gmail.com> - 2016-10-21 15:43 -0700
    Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-10-24 09:01 -0700
      Re: hi-res graphics animation, dynamically generated shape tables 6502workshop@gmail.com - 2016-11-05 10:29 -0700
    Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-10-24 09:01 -0700
      Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-10-24 10:30 -0700
    Re: hi-res graphics animation, dynamically generated shape tables Michael Pohoreski <michael.pohoreski@gmail.com> - 2016-10-24 10:18 -0700

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