Path: chuka.playstation.co.uk!news From: john Newsgroups: scee.yaroze.programming.2d_graphics Subject: animation, collision detection, backgrounds Date: Sat, 10 Jul 1999 01:04:02 -0700 Organization: PlayStation Net Yaroze (SCEE) Lines: 17 Message-ID: <3786FE72.1BE9@hotmail.com> NNTP-Posting-Host: du-1321.claranet.co.uk Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 2.02 (Win95; I; 16bit) How do I do animation with sprites. I want a character to appear to walk when he moves across the screen. When i wrote a simple function to test two spheres colliding as they bounced around the screen the program slows down when the spheres are near the edge of the screen (but only if collision detection is being used). Also when if a higher res mode (640 x512) the screen flickered constantly and when the spheres collided they produced a static double image until the spheres collided again. What's wrong? Also the spheres sometimes stick together if they collide whilst moving towards each other. Has anyone got a simple tutorial for using the background picture functions (ie. words not just code) Thanks