CUAnimationNode.h

//
//  CUAnimationNode.h
//  Cornell Extensions to Cocos2D
//
//  Animation in Cocos2d is extremely heavy-weight.  You have to create a lot of
//  classes just to cycle through one simple filmstrip.  While there are many reasons
//  for this engineering decision (many of which I disagree with), it makes it very
//  difficult to get started with animation in Cocos2d.
//
//  This class helps makes things simple again.  It provides a straight-forward
//  filmstrip API, similar to what you saw in the intro class.  However, note that
//  this class extends PolygonNode and not Sprite.  Therefore, you could conceivably
//  animate the filmstrip over polygons.  However, this can have undesirable effects
//  if the polygon coordinates extend beyond a single animation frame; the Cocos2d
//  renderer does not allow us to wrap a single frame of a texture atlas.
//
//  Author: Walker White
//  Version: 12/10/15
//
#ifndef __CU_FILM_STRIP_H__
#define __CU_FILM_STRIP_H__

#include "CUPolygonNode.h"
#include <2d/CCSprite.h>


NS_CC_BEGIN

#pragma mark -
#pragma mark AnimationNode

class CC_DLL AnimationNode : public PolygonNode {
    
private:
    int _cols;
    int _size;
    int _frame;
    Rect _bounds;
    
public:
    static AnimationNode* create(Texture2D* texture, int rows, int cols);
    
    static AnimationNode* create(Texture2D* texture, int rows, int cols, int size);

    
#pragma mark Attribute Accessors

    int getSize()   { return _size; }
    
    unsigned int getFrame()  { return _frame; }
    
    void setFrame(int frame);

    
#pragma mark Internal Constructors
CC_CONSTRUCTOR_ACCESS:
    // WE FOLLOW THE TEMPLATE FOR SPRITE HERE
    AnimationNode();
    
    ~AnimationNode() { }

    bool initWithFilmstrip(Texture2D* texture, int rows, int cols, int size);

};

NS_CC_END

#endif /* defined(__CU_FILM_STRIP_H__) */