Re: A big map with scrolling. How???

Article View: rec.games.programmer

Article #935

Back to rec.games.programmer Previous Next

#935

From: David Gudeman
Date: Tue, 11 Sep 1990 19:30

16 lines
1231 bytes

In article  <20299:Sep1114:53:0290@kramden.acf.nyu.edu> brnstnd@kramden.acf.nyu.edu (Dan Bernstein) writes:
]... I don't remember the exact dimensions of
]the maze, but it was somewhat wider than the screen and much longer.
]Anyway, scrolling was truly instantaneous: the CGA had something to set
]the byte offset of the screen within its many screenfuls of memory, and
]*blip* everything shifted...

I suspect that you are dis-remembering the dimensions and the actual
width was the same as the screen width.  I don't know of any way to
use this technique with a map width different from the screen width.
But if you do, please describe it.
-- 
					David Gudeman
Department of Computer Science
The University of Arizona        gudeman@cs.arizona.edu
Tucson, AZ 85721                 noao!arizona!gudeman

Technical Details

Message-ID: <25223@megaron.cs.arizona.edu>

Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!noao!arizona!gudeman

Show Full Headers

Complete Article Headers

Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!noao!arizona!gudeman
From: gudeman@cs.arizona.edu (David Gudeman)
Newsgroups: rec.games.programmer,comp.os.msdos.programmer
Subject: Re: A big map with scrolling.  How???
Message-ID: <25223@megaron.cs.arizona.edu>
Date: 11 Sep 90 19:30:36 GMT
Followup-To: rec.games.programmer
Organization: U of Arizona CS Dept, Tucson
Lines: 16