From: "Icehot" <max133 AT chalktv DOT com>
Newsgroups: comp.os.msdos.djgpp
References: <cPb64.12704$uj2 DOT 348729 AT newscontent-01 DOT sprint DOT ca> <MPG DOT 12c3107b3dc38e0b9896dd AT news DOT cso DOT uiuc DOT edu>
Subject: Re: Allegro mouse routines... Code probs
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Message-ID: <Qih64.13192$uj2.360806@newscontent-01.sprint.ca>
Date: Thu, 16 Dec 1999 21:34:50 -0800
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hehe, thanks. Code optimazation isn't one of my virtues. Oh, if you ever
want
to show off unoptimized code, just post and I'll give you some.

--
Max AKA Icehot
http://move.to/gametek         -- A Great C/C++ Programming Resource

---------------------------------------------------
"Don't try to be like Jackie.  There is only one Jackie...  Study computers
instead."
- Jackie Chan




Peter Johnson <locke AT mcs DOT net> wrote in message
news:MPG DOT 12c3107b3dc38e0b9896dd AT news DOT cso DOT uiuc DOT edu...
> In article <cPb64.12704$uj2 DOT 348729 AT newscontent-01 DOT sprint DOT ca>,
> max133 AT chalktv DOT com says...
> >  for (mx==x1; mx<x2; mx++)
> >  {
> >   for (my==y1; my<y2; my++)
> >   {
> >    if ((mouse_x==mx) && (mouse_y==my) )&& (mouse_b & 1))
> >    {
> >     newgame();
> >   }
> >   }
> >  }
>
> Instead of this, why not the following:
>
> if ((mouse_x < x2) && (mouse_x > x1) &&
>     (mouse_y < y2) && (mouse_y > y1) &&
>     (mouse_b & 1))
>         newgame();
>
> Looping through the entire coordinate range is wasteful.
>
> Also, a better way to do this test would be in a mouse callback instead
> of polling, but that's another topic entirely.. :)
>
> --
> Peter Johnson             locke AT mcs DOT net
> :Windows: Where do you want to go today?
> :Linux:   Where do you want to go tomorrow?
> :FreeBSD: Are you guys coming or what?