Re: A89: Re: masking sprites

To: assembly-89@lists.ticalc.org
Subject: Re: A89: Re: masking sprites
From: TurboSoft@aol.com
Date: Sun, 26 Sep 1999 14:20:21 EDT
Reply-To: assembly-89@lists.ticalc.org

In a message dated 9/25/99 4:27:50 PM Eastern Daylight Time, 
m_rayman@bigfoot.com writes:

> What exactly are you sprites?  Something like this:?
>  
>  sprite:
>  00000
>  01110
>  01010
>  01110
>  00000
>  
>  mask:
>  00000
>  01110
>  01010
>  01110
>  00000

yeah, just like that.  However, this is what happens in real life:
instead of the result of the above being (on a black background)
00000
01110
01010
01110
00000

it might turn out to be something like this:

11101
11111
01111
11111
11110

where just a few of the pixels are turned off, even though the mask was '0' 
for that pixel.  it's weird.
--TurboSoft

Visit the TURBOSOFT HOMEPAGE:  The most current Basic programs created by 
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Follow-Ups:

A89: 12x12 sprite routine

From: Andrew Magness <AndrewM@ev1.net>