Path: utzoo!utgpu!attcan!uunet!lll-winken!ames!mailrus!cornell!rochester!rit!ultb!dgr0093
From: dgr0093@ultb.UUCP (D.G. Rutherford )
Newsgroups: comp.binaries.ibm.pc.d
Subject: Re: Making balls move with TC 2.0 graphics, a tough problem HELP
Summary: I want a more general answer than pageflipping
Keywords: movement, graphics, EGA, pages, steel factories
Message-ID: <287@ultb.UUCP>
Date: 13 Jan 89 14:15:11 GMT
References: <4343@freja.diku.dk> <781@hpwala.wal.hp.com>
Reply-To: dgr0093@ultb.UUCP (Michelangelo H. Jones)
Followup-To: comp.binaries.ibm.pc.d
Organization: Rochester Institute of Technology (Brick City Prison)
Lines: 11

> (stuff about moving a ball using two EGA pages)

Page-flipping is a good technique that all the best Apple games have
used since about 1983. And with machines which, like the EGA IBM, have
two graphics pages, it is a very simple and elegant solution. But
perhaps a more general solution would be useful; what if you were
writing a program for a CGA (yes, blecch, but..) or some other unipage
adaptor? Is there a simple way to do flickerless animation, or
minor-flicker animation, using only one display page?

Jones.