cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   illinnovations
   Member

   I am attempting to use a large png image (1440x960) as a background for my game.

   Sprite *bg = [Sprite spriteWithFile:@"massattackbackground-1.png"];
   bg.position = ccp(1000,3000);
   [self addChild: bg];

   The code works fine if I use small images, and they are displayed on the screen. When I switch to this image, the program crashes. Any ideas?

   Posted 2 years ago #
2. 

   penguins
   Member

   I was having a similar problem. The iphone just doesn't like large images.

   I solved my problem by splitting the image up into 4-6 smaller images, then made sprites from each of them and positioned them so it looked like one big image, even though it was made up of lots of smaller images.

   Hope that helps.

   Posted 2 years ago #
3. 

   goldplated
   Member

   the max image is 1024x1024 i believe that cocos2d supports.. even though you can do 2048x2048 on the 3GS phone its kept at 1024 for backwards compatibility. hope this helps..

   Posted 2 years ago #
4. 

   illinnovations
   Member

   Helps a ton. Thanks!

   Posted 2 years ago #
5. 

   illinnovations
   Member

   Btw, is having a large background image going to severely affect the functionality of the app? Is there an efficient way of putting the image into the app so that the framerate stays high?

   Posted 2 years ago #
6. 

   pabloruiz55
   Member

   Having 1 or 2 large images kills your fps... as penguins said the best way is to split it in many smaller images, that way you can even turn of the visibility of the ones out of sight for better performance.

   Posted 2 years ago #

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