cocos2d for iPhone

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

1. 

   cracka
   Member

   I recently discovered that iPhone apps can display an image before the startup process is finished. I would like to show a blurred image of the menu until everything is done loading. Then I want the image to morph or unblur to the menu. As far as I know there is no transition that does this.

   Is this something I'll have to do myself with OpenGL? I'll be glad to contribute my code if I can get it to work.

   Posted 2 years ago #
2. 

   Codemattic
   Moderator

   An idea: make your Default.png the blurred menu. Also load it as a sprite. then draw your menus but with the blurred menu sprite on top hiding them. Fade out the blurred menu sprite. Remove the blurred menu sprite and free the texture memory for it.

   Posted 2 years ago #
3. 

   cracka
   Member

   Thank you for the advice. It was very easy to code and looks nice.

   blurredMenu = [Sprite spriteWithFile:@"Default.png"];
   
   		blurredMenu.position = ccp(240, 160);
   		blurredMenu.rotation = -90.0;
   		[self addChild:blurredMenu];
   		[blurredMenu runAction:[FadeOut actionWithDuration:0.5]];
   		[self schedule: @selector(removeBlurredMenu) interval:0.6];
   
   - (void) removeBlurredMenu
   {
   	[self removeChild:blurredMenu cleanup:YES];
   }

   Posted 2 years ago #
4. 

   crmagicxxx
   Member

   @cracka

   You're aware that your method removeBlurredMenu is called every 0.6 seconds? And it still continues to work even you removed that child. Also, there is a tiny chance that your schedule will be called before animation is done if for any reason that action is not done in 0.5 seconds. May happen and your code will crash I suppose trying to finish an animation of the released object. So there are 2 options for you:

   1) call unschedule selector first line in removeBlurredMenu
   2) delete schedule and run action like this:

   [blurredMenu runAction:[Sequence actions:[FadeOut actionWithDuration:0.5],[CallFunc actionWithTarget:self selector:@selector(removeBlurredMenu)], nil]];

   So you're sure your selector is called just after fade finishes...

   Posted 2 years ago #

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