#ifndef DEF_XSPRITEGROUP_H
	#define DEF_XSPRITEGROUP_H

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

	class xSpriteGroup : public xDrawable, public xOrchestrable {

		public:
			xSpriteGroup();
			virtual ~xSpriteGroup();

			// manage sprite list
			void add(xSprite* sprite);
			void remove(xSprite* sprite);
			void clear();

			// set absolute move for each sprite
			void displace(SDL_Rect displace);
			void displace(int x, int y, int w, int h);

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

			// implement xOrchestrable
			void tick(const uint32_t ticks);

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

		protected:
			void draw_sprite(SDL_Renderer* renderer, xSprite* sprite);

			SDL_Rect      _displace;

			set<xSprite*> _sprites;

			// if not animated, draw all sprites, else draw one at a time
			bool          _animated = false;
			// active sprite for animation
			size_t        _active_sprite = 0;
			uint32_t      _animation_interval = 0;

			mutex         _mutex;

	};

#endif