cocos2d for iPhone

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

1. 

   carlosh
   Member

   Hi. So I am trying to animate using an atlas sprite animation. I set the animation instance to an atlas sprite object, and I can animate through with the method "setDisplayFrame", which I sent the frame I want it to display. I know I can iterate through my frames and make the animation. But what I want to know is, when I create the animation, I set a delay, for what is that? Is there a message I can send to the sprite so it can start the animation X, and move through each frame? Or I need to this manually?

   Thanks.

   Posted 2 years ago #
2. 

   bradparks
   Member

   You can run your AtlasAnimation using the Animate action... that'll make it automatically move through each frame.... that's what the delay is for... The following creates an animation and then tells an AtlasSprite to play the animation... not all the codes there, but this should give you the idea....

   AtlasAnimation *animation = [AtlasAnimation animationWithName:animationName delay:0.1f];
   for (int i=startFrame;i<=endFrame;i++)
   {
     int x= i * spriteWidth;
     int y= row * spriteHeight;
     [animation addFrameWithRect: CGRectMake(x, y, spriteWidth, spriteHeight) ];
   }
   id action = [Animate actionWithAnimation: animation];
   id repeat = [RepeatForever actionWithAction:action];
   
   [mySprite runAction:repeat];

   Posted 2 years ago #
3. 

   carlosh
   Member

   Thanks.

   Posted 2 years ago #
4. 

   mlashbro
   Member

   What am I missing here?

   1 AtlasAnimation *animation = [AtlasAnimation animationWithName:animationName delay:0.1f];
   2 for (int i=startFrame;i<=endFrame;i++)
   3 {
   4 int x= i * spriteWidth;
   5 int y= row * spriteHeight;
   6 [animation addFrameWithRect: CGRectMake(x, y, spriteWidth, spriteHeight) ];
   7 }

   I see in line 1 where you are creating an AtlasAnimation. I see in line 6 where you are adding frames to the animation. Where do you associate the AtlasSpriteManager (or specify the file name)? I guess my question is: How does my image file get associated with the animation so that addFrameWithRect is adding image from my file?

   Posted 2 years ago #
5. 

   nskhan
   Member

   The poster has not given the complete source since the question was about the animation.
   I assume there is an AtlasSpriteManager which holds the sprite sheet and mySprite in added to it.

   As far as i understand the animation objects only holds the Rectangle coordinates of the frames and only during rendering it takes the rectangle coordinates and sprite sheet from the manager to render the right frame.

   Posted 2 years ago #

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