An useful SKNode subclass that allows to animate a set of sprite frames of an atlas bundle.

Inspired from an interesting tutorial, read on RayWenderLich and written by Tony Dahbura (http://www.raywenderlich.com/45152/sprite-kit-tutorial-animations-and-texture-atlases) about Animations and Texture Atlases, I decide to develop an utility class (SKNode sublass) to achive this behavior in an EZ Way!

To implement an animation you have:

1. to add in the main bundle of the project, an atlas bundle with a set of sprite frames (within my example project there are some bundle).
2. create an instance of the class L3SDKTextureAtlasAnimation an initialite it with one of the init factory methods (see below).

//defines the motion direction behavior
typedef enum : NSUInteger {
    SpriteMovmentDirectionAll,
    SpriteMovmentDirectionX,
    SpriteMovmentDirectionY
} SpriteMovmentDirection;
//defines the orientation of the sprite frames
typedef enum : NSUInteger {
    SpriteOrientationRight,
    SpriteOrientationLeft,
    SpriteOrientationUp,
    SpriteOrientationDown
} SpriteOrientation;

-(void)setupRedBaron{ //NOTE: this example shows how to setup a custom umber format self.spriteAnimation=[[L3SDKTextureAtlasAnimation alloc] initWithAtlasBundle:@"baroncombo" andTextureBaseName:@"baron_combo" andTextureNumberFormat:@"0000"];

self.spriteAnimation.spriteNode.position=CGPointMake(self.size.width/2,self.size.height/2);;
self.spriteAnimation.spriteNode.size=CGSizeMake(400, 400);
self.spriteAnimation.timePerFrame=0.05f;
self.spriteAnimation.spriteOrientation=SpriteOrientationLeft;

[self addChild:self.spriteAnimation];

}

-(void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{ CGPoint location = [[touches anyObject] locationInNode:self]; [self.spriteAnimation animateToDirection:location]; }

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![ScreenShot](https://raw.github.com/alchimya/iOS-SpriteKit-TextureAtlasAnimation/master/screenshots/CaveMan.gif)
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![ScreenShot](https://raw.github.com/alchimya/iOS-SpriteKit-TextureAtlasAnimation/master/screenshots/VikingJump.gif)
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![ScreenShot](https://raw.github.com/alchimya/iOS-SpriteKit-TextureAtlasAnimation/master/screenshots/VikingRun.gif)