Timers in Sprite Kit

Question

I don't have experience with Sprite Kit. I was wondering is there something similar to Cocos2D schedulers in Sprite Kit ? If no, what should be used NSTimer is the only option? I guess if the only option is using NSTimer we manually need to handle case when application is in background. Thank you.

Answer 1

To achieve functionality similar to cocos scheduler you can use SKAction.

For example for the to achieve something like this

[self schedule:@selector(fireMethod:) interval:0.5];

using SKAction You would write this

SKAction *wait = [SKAction waitForDuration:0.5];
SKAction *performSelector = [SKAction performSelector:@selector(fireMethod:) onTarget:self];
SKAction *sequence = [SKAction sequence:@[performSelector, wait]];
SKAction *repeat   = [SKAction repeatActionForever:sequence];
[self runAction:repeat]; 

It isn't best looking, and lacks some flexibility of CCScheduler, but it will pause upon backgrounding, pausing scene/view etc. + it is like playing with LEGOs :)