xmario/xSDL/xSprite.h

#ifndef DEF_XSPRITE_H
	#define DEF_XSPRITE_H

	#include <string>
	#include <vector>
	#include <mutex>
	#include "SDL.h"
	#include "SDL_image.h"
	#include "xElement.h"
	#include "xOrchestrable.h"
	#include "xApplication.h"
	using namespace std;

	class xSprite : public xElement, public xOrchestrable {

		public:
			// color sprite
			xSprite(const int rgba[]);
			// image sprite
			xSprite(const char *url);
			// image with default clip
			xSprite(const char *url, SDL_Rect clip);
			virtual ~xSprite();

			// replace surface
			void setSurface(const int rgba[]); // color sprite
			void setSurface(const char *url);  // image sprite
			void setSurface(SDL_Surface *t);   // copy surface

			// animation
			void addFrame(SDL_Rect clip);
			void clearFrames();

			// sets the sprite clip
			// + clears animation frames
			void setClip(SDL_Rect clip);

			// set projection into scene
			void project(SDL_Rect dest);

			// implement xElement
			virtual void draw(SDL_Renderer* renderer) override;

			// orchestrable process
			void tick(const uint32_t ticks);

			// animation handles
			void animate(uint32_t interval);
			void freeze();

		protected:
			SDL_Surface*      _surface = NULL;
			SDL_Rect          _projection;

			// surface clips
			// [0] : no clip, use default surface dimensions
			// [1] : global clip, use it every time
			// [2+]: clips are used for animation
			vector<SDL_Rect>  _frames;

			// active clip for animation ; equal to 0 if not an animated sprite
			size_t            _active_clip = 0;
			uint32_t          _animation_interval;

			mutex             _mutex;

	};

#endif