46 lines
881 B
C
46 lines
881 B
C
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#ifndef __COMMON_H__
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#define __COMMON_H__
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#include <SDL.h>
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#define GAMEFPS 60
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struct Vector
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{
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float x;
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float y;
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float z;
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};
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typedef Vector Point;
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struct FrameCounter
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{
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unsigned int curFrame;
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unsigned int lastTime;
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SDL_Surface *lastFrame;
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};
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/**
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* @class SharedCanvas2D
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* @brief A class that allows multiple objects to re-use a single SDL_Surface with reference counting for safe memory usage
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*
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* The only thing that might be confusing about this class is that it is just
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* a container for an SDL_Surface that implements refcounting.
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*/
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class SharedCanvas2D
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{
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protected:
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SDL_Surface *canvas;
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public:
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SharedCanvas2D();
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virtual ~SharedCanvas2D();
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SDL_Surface *getCanvas();
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virtual int shareCanvas(SharedCanvas2D *obj);
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virtual int shareCanvas(SDL_Surface *obj);
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virtual int releaseCanvas();
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};
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#endif // __COMMON_H__
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