/**
* @file fog_effect.h
*/

#ifndef _FOG_EFFECT
#define _FOG_EFFECT

#include "vector.h"

#include "weather_effect.h"

class FogEffect : public WeatherEffect
{
	public:
		FogEffect(const TiXmlElement* root = NULL);
		virtual ~FogEffect();

		virtual void loadParams(const TiXmlElement* root);

		virtual bool init();

		virtual bool activate();
		virtual bool deactivate();

		void activateFog() { this->activate(); }
		void deactivateFog() { this->deactivate(); }

		virtual void draw() const;
		virtual void tick(float dt);

		inline void setFogMode(const std::string& mode) { this->fogMode = this->stringToFogMode(mode); }
		inline void setFogDensity(float density) { this->fogDensity = density; }
		inline void setFogRange(float start, float end) { this->fogStart = start; this->fogEnd = end; }
		inline void setFogColor(float r, float g, float b) { this->colorVector = Vector(r, g, b); }
		inline void setFogOption(const std::string& option) { if (option == "activate") this->fogActivate = true; }

		void startFogging();

	private:
		GLint stringToFogMode(const std::string& mode);

		bool				fogActivate;
		GLfloat				fogFadeDuration;
		float				localTimer;
		
		GLint				fogMode;
		GLfloat				fogDensity;
		GLfloat				fogFadeDensity;

		GLfloat				fogStart;
		GLfloat				fogEnd;
		Vector				colorVector;
};


#endif  /* _FOG_EFFECT */