A fast, easy to use, free, and community supported 2D game engine
Yves
Member
Hey guys I'm new to cocos2d and Im confused about actions. From what I have read they "act" like methods the ccsprite class would encapsulate.
1. Is there a proper definition to cocos2d Actions? Is there a site that explains them in depth (beyond that they are orders that you send to a CCNode)?
2. What are scenarios where they are applicable and when should I write normal class methods instead?
Thanks so much!
Well actions are used as moving sprites. There are also rotating and many more.
One example is when you want a bird fly across the screen, you would use:
[bird runAction:[CCMoveBy actionWithDuration:2 position:ccp(50,0]]; <-- move the bird to position 50 in 2 seconds.If you want to find out more, this is a great website:
http://bobueland.com/cocos2d/?p=58
If you want to find out about other stuffs too, this has many tutorials for beginners:
http://bobueland.com/cocos2d/
You should check out this too:
http://www.cocos2d-iphone.org/forum/topic/3
Actions are timed async operations you can start, which modifies properties without you intervention. Like @gametreesnet said, you can ex move an object to a certain position in a certain time interval, without having to worry about it after you started it.
This approach suits the message driven Obj-C very well, and takes a lot of load of your code. The alternative would be, that you for any moving, scaling, fading, etc etc object in you scene, manually calculated the values for each screen update, and set the properties accordingly.
You must log in to post.
