Animating multiple sprites - ios

Question

This is the code for creating single sprite, then animating it:
[[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:#"crowfl.plist"];
CCSpriteBatchNode *spriteSheet = [CCSpriteBatchNode batchNodeWithFile:#"crowfl.png"];
[self addChild:spriteSheet];
NSMutableArray *crowAnimFrames = [NSMutableArray array];
for (int i=1; i<=8; i++) {
[crowAnimFrames addObject:[[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName:[NSString stringWithFormat:#"crow%d.png", i]]];
}
CCAnimation *crowAnim = [CCAnimation animationWithSpriteFrames:crowAnimFrames delay:0.1f];
_crow = [CCSprite spriteWithSpriteFrameName:#"crow1.png"];
_crow.position = ccp(windowSize.width + _crow.contentSize.width/2, _crowFlightHeight);
id crowAction = [CCRepeatForever actionWithAction:[CCAnimate actionWithAnimation:crowAnim]];
[_crow runAction:crowAction];
[spriteSheet addChild:_crow];
...
id crowMoveAction = [CCSequence actions:
[CCMoveTo actionWithDuration:5.0 position:ccp(_flipCrow ? (windowSize.width + _crow.contentSize.width/2) : (-_crow.contentSize.width/2), _crowFlightHeight)],
crowMoveComplete,
nil];
[_crow runAction:crowMoveAction];
What I need is to create multiple sprites(_crow) and animate them asynchronously. I need to know what part of code can be reusable/shared among multiple sprites and what part should be unique for each animating sprite.

Answer 1

Cache animation in CCAnimationCache and that reduces delay in loading again and again:
CCAnimation* crowAnim = nil;
crowAnim = [[CCAnimationCache sharedAnimationCache] animationByName:#"crowAnim"];
if(!crowAnim)
{
[[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:#"crowfl.plist"];
CCSpriteBatchNode *spriteSheet = [CCSpriteBatchNode batchNodeWithFile:#"crowfl.png"];
[self addChild:spriteSheet];
NSMutableArray *crowAnimFrames = [NSMutableArray array];
for (int i=1; i<=8; i++) {
[crowAnimFrames addObject:[[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName:[NSString stringWithFormat:#"crow%d.png", i]]];
}
crowAnim = [CCAnimation animationWithSpriteFrames:crowAnimFrames delay:0.1f];
[[CCAnimationCache sharedAnimationCache] addAnimation:crowAnim name:#"crowAnim"];
}
_crow = [CCSprite spriteWithSpriteFrameName:#"crow1.png"];
_crow.position = ccp(windowSize.width + _crow.contentSize.width/2, _crowFlightHeight);
id crowAction = [CCRepeatForever actionWithAction:[CCAnimate actionWithAnimation:crowAnim]];
[_crow runAction:crowAction];
[spriteSheet addChild:_crow];
...
id crowMoveAction = [CCSequence actions:
[CCMoveTo actionWithDuration:5.0 position:ccp(_flipCrow ? (windowSize.width + _crow.contentSize.width/2) : (-_crow.contentSize.width/2), _crowFlightHeight)],
crowMoveComplete,
nil];
[_crow runAction:crowMoveAction];