cocos2d for iPhone

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

1. 

   NickFalk
   Member

   Hi there, I've been having a rough day following updating both the SDK/XCode and Cocos2D to the latest versions.
   I've finally managed to get my game up and running again. I have however experienced some problems with opacity and png's. The following code displayed just fine with 99.3 but since updating to 99.4 it only displays the front sprite with black where the transparency is supposed to be:
   

   CCSprite *backgroundSprite = [CCSprite spriteWithFile:@"lowScoreBackground.png"];
   	backgroundSprite.position = ccp(160.0,240.0);
   	// Then the front element
   	CCSprite *frontSprite = [CCSprite spriteWithFile:@"lowScoreFrontElement.png"];
   	frontSprite.position = ccp(160.0, 240.0);
   
   	// Then we add the sprites to this layer
   	[self addChild:backgroundSprite z:1];
   	[self addChild:frontSprite z: 2];

   Fairly straightforward stuff and the files are identical to the ones I used with 99.3 (when it worked). Is there some changes in the 99.4 release that could explain this, and if not, does anyone have a clue? Thanking you all in advance.

   Posted 1 year ago #
2. 

   NickFalk
   Member

   OK I'm guilty as charged when it comes to oversimplifying my problem above. I am no closer to rid myself of the problem but it seems it stems from the fact that both sprites have a CCLiquid action attached:
   

   [backgroundSprite runAction:[CCRepeatForever actionWithAction:[CCLiquid actionWithWaves:4 amplitude:2.0 grid:ccg(8,8) duration:15]]];
   	[frontSprite runAction:[CCRepeatForever actionWithAction:[CCLiquid actionWithWaves:6 amplitude:3.0 grid:ccg(8,8) duration:18]]];

   Removing the action from the frontSprite rids me of the problem, but then it doesn't appear the way I want it to. (And it worked with 99.3). It seems the CCLiquid doesn't work with transparent images anymore(?)

   Posted 1 year ago #
3. 

   NickFalk
   Member

   I hate people who bump their own threads so, yes, there is a certain amount of self loathing going on here.

   Despite this, I would be interested to see if anyone else can manage to recreate the problem or if it is something awry at my end. If this is a "real" problem I should probably report it...

   Posted 1 year ago #
4. 

   riq
   Key Master

   I think that v0.99.4 doesn't include any bug fix or modification in CCGrid, or at least I don't remember it. But it might be a bug.
   it would help if you post 2 screenshots: 1 with the v0.99.3 and the other with v0.99.4... I might (just might) have a clue of what is going on.

   Posted 1 year ago #

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