/*
--------------------------------------------------------------------------------
This source file is part of SkyX.
Visit ---

Copyright (C) 2009 Xavier Verguín González <xavierverguin@hotmail.com>
                                           <xavyiy@gmail.com>

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.
--------------------------------------------------------------------------------
*/

#ifndef _SkyX_VCloudsManager_H_
#define _SkyX_VCloudsManager_H_

#include "SkyxPrerequisites.h"
#include "SkyxColorGradient.h"
#include "VClouds/SkyxVClouds.h"

namespace SkyX
{

	/*!
	*/
  class SkyXDllExport VCloudsManager 
	{
	public:
	protected:
	private:
    bool mCreated;
		ColorGradient mAmbientGradient;	//!< Ambient color gradient
		ColorGradient mSunGradient;		  //!< Sun color gradient
		VClouds::VClouds* mVClouds;		  //!< VClouds pointer
		Ogre::Vector2 mHeight;			    //!< Height parameters, x = Cloud field y-coord start, y: Field height (both in world coordinates)
		bool mAutoupdate;				        //!< Autoupdate wind speed depending of skyx time multiplier?
		Ogre::Real mWindSpeed;			    //!< Wind speed
		SkyX* mSkyX;					          //!< SkyX parent pointer

	public:
	    /*!
		Constructor
		@param s Parent SkyX pointer
		*/
		VCloudsManager(SkyX* s);

		/*!
		Destructor 
		*/
		~VCloudsManager();

		/*!
		Create all resources
		*/
		void create();

		/*!
		Update
		@param timeSinceLastFrame Time since last frame
		*/
		void update(const Ogre::Real& timeSinceLastFrame);

		/*!
		Remove all resources
		*/
		void remove();

		/*!
		Update wind speed config
		*/
		void _updateWindSpeedConfig();

		/*!
		Set ambient gradient
		@param AmbientGradient Ambient color gradient
		*/
		inline void setAmbientGradient(const ColorGradient& AmbientGradient)
		{
			mAmbientGradient = AmbientGradient;
		}

		/*!
		Get ambient color gradient
		@return Ambient color gradient
		*/
		inline const ColorGradient& getAmbientGradient() const
		{
			return mAmbientGradient;
		}

		/*!
		Set sun gradient
		@param SunGradient Sun color gradient
		*/
		inline void setSunGradient(const ColorGradient& SunGradient)
		{
			mSunGradient = SunGradient;
		}

		/*!
		Get sun color gradient
		@return Sun color gradient
		*/
		inline const ColorGradient& getSunGradient() const
		{
			return mSunGradient;
		}

		/*!
		Set height parameters
		@param Height x = Cloud field y-coord start, y: Field height (both in world coordinates)
		@remarks Call it before create(), for now...
				 For autocalculated height based on the radius length set (-1,-1) as height params
		*/
		inline void setHeight(const Ogre::Vector2& Height)
		{
			mHeight = Height;
		}

		/*!
		Get height parameters
		@return Height: x = Cloud field y-coord start, y: Field height (both in world coordinates)
		*/
		inline const Ogre::Vector2& getHeight() const
		{
			return mHeight;
		}

		/*!
		Set autoupdate
		@Autoupdate true if you want to update volumetric clouds wind depending of the SkyX time multiplier
		@remarks You can use VClouds->setWindSpeed(..) for different winds speeds
		*/
		inline void setAutoupdate(const bool& Autoupdate) 
		{
			mAutoupdate = Autoupdate;
			_updateWindSpeedConfig();
		}

		/*!
		Get autoupdate
		@return true if you want to update volumetric clouds wind depending of the SkyX time multiplier
		*/
		inline const bool& getAutoupdate() const
		{
			return mAutoupdate;
		}

		/*!
		Set wind speed
		@param WindSpeed Wind speed
		*/
		inline void setWindSpeed(const Ogre::Real& WindSpeed)
		{
			mWindSpeed = WindSpeed;
			_updateWindSpeedConfig();
		}

		/*!
		Get wind speed
		@return Wind speed
		*/
		inline const Ogre::Real& getWindSpeed() const
		{
			return mWindSpeed;
		}
	
		/*!
		Get VClouds
		*/
		inline VClouds::VClouds* getVClouds()
		{
			return mVClouds;
		}
	protected:
	private:
		/*!
		Set light parameters
		*/
		void _setLightParameters();
	};

}

#endif