cocos2d for iPhone

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

1. 

   seymores
   Member

   Hi all,

   I'm new and I have searched around for discussions regarding sprites creation and object retention but so far I couldn't find any satisfactory answer.

   I'm working on a game scene where there will be many sprite created at random over time. I noticed that the FPS drop considerably after 5 minutes. Checking with the performance instrument I noticed that objects didn't seems to be released.

   I do call [layer removeChild:sprite cleanUp:Yes] but tht doesn't seems to help.

   The only thing I haven't try so far is to create a object pool for the sprites so that I don't keep creating new sprites but I can't find any tutorial to indicate that this is the how real-world practice.

   Btw, what is the right way to clean up sprites?

   Thanks in advance.

   Posted 1 year ago #
2. 

   Codemattic
   Moderator

   How do you create and add new sprites to your animation? Code examples please.

   Posted 1 year ago #
3. 

   seymores
   Member

   I'm using Sprite's spriteWithFile and removeChild all over the place.

   - (void)explode:(UITouch *)touch {
   CGPoint location = [touch locationInView:[touch view]];
   location = [[CCDirector sharedDirector] convertToGL:location];

   explosion = [CCSprite spriteWithFile:@"explode.png"];
   [explosion setPosition:location];
   [self addChild:explosion];

   [[self parent] removeChild:self cleanup:YES];
   }

   - (void)balloonExploded:(ccTime) dt {
   [self removeChild:explosion cleanup:YES];
   explosion = nil;
   }

   Posted 1 year ago #
4. 

   Codemattic
   Moderator

   -explode: seems a little strange to me. You add an explosion to self, but also immediately remove self from its parent? Why?

   Also, use backticks (or just hit the 'code' button) before and after code to make it more readable please. Like this:
   

   - (void)explode:(UITouch *)touch {
   	CGPoint location = [touch locationInView:[touch view]];
   	location = [[CCDirector sharedDirector] convertToGL:location];
   
   	explosion = [CCSprite spriteWithFile:@"explode.png"];
   	[explosion setPosition:location];
   	[self addChild:explosion];
   
   	[[self parent] removeChild:self cleanup:YES];
   }
   
   - (void)balloonExploded:(ccTime) dt {
   	[self removeChild:explosion cleanup:YES];
   	explosion = nil;
   }

   Posted 1 year ago #

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