Just ignore thread now. Previously I stated that I figured out that I needed to blit the background and update it before the while loop. I have also, since learned how to use the Sprite and SpriteGroup classes, so I am using them now.
----- Original Message ----- From: Gabriel Hasbun To: [email protected] Sent: Saturday, May 24, 2008 1:54 PM Subject: Re: [pygame] Dirty Rect updating I think you are not correctly blitting the background to the screen Surface. Although I can't be sure about it since you did not post any real python code... --- On Sat, 5/17/08, etrek <[EMAIL PROTECTED]> wrote: From: etrek <[EMAIL PROTECTED]> Subject: [pygame] Dirty Rect updating To: [email protected] Date: Saturday, May 17, 2008, 7:01 PM Hi, I'm trying to update just the portions of my screen that change per frame. The problem I'm having is that only the image I'm animating is showing up. My background is not showing up - background is now black. I'm not using Sprite/SpriteGroup, but I will soon, and I'm thinking I'll have the same problem when I try to render the dirty rects list returned by RnderUpdates.draw() method. pseudocode: background = pygame.image.load(background.png) surface = pygame.image.load(spaceship) while true: get events clear screen to white blit background blit spaceship create rect of where surface is on screen pygame.display.update(rect) # which in this case is a rectangle in the location of my animated surface I'm following procedure from http://www.pygame.org/docs/tut/newbieguide.html: 1.. Blit a piece of the background over the sprite's current location, erasing it. 2.. Append the sprite's current location rectangle to a list called dirty_rects. 3.. Move the sprite. 4.. Draw the sprite at it's new location. 5.. Append the sprite's new location to my dirty_rects list. 6.. Call display.update(dirty_rects) Thanks for help Ethan
