main/include/GroundFog.h

/*
This file is part of Caelum.
See http://www.ogre3d.org/wiki/index.php/Caelum 

Copyright (c) 2006-2007 Caelum team. See Contributors.txt for details.

Caelum 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 3 of the License, or
(at your option) any later version.

Caelum 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 Caelum. If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef GROUNDFOG_H
#define GROUNDFOG_H

#include "CaelumPrerequisites.h"
#include "CameraBoundElement.h"

namespace caelum {

class CAELUM_EXPORT GroundFog: public CameraBoundElement {
    public:
        static const Ogre::String DEFAULT_PASS_NAME;

        GroundFog (Ogre::SceneManager *scene,
            Ogre::SceneNode *caelumRootNode,
            const Ogre::String &domeMaterialName = "CaelumGroundFogDome",
            const Ogre::String &domeEntityName = "CaelumGroundFogDome");

        virtual ~GroundFog ();

        typedef std::set<Ogre::Pass *> PassSet;

        PassSet& getPasses();

        const PassSet& getPasses () const;

        void findFogPassesByName (const Ogre::String& passName = DEFAULT_PASS_NAME);

        void setDensity (Ogre::Real density);

        Ogre::Real getDensity ();

        void setColour (const Ogre::ColourValue &colour);

        Ogre::ColourValue getColour ();

        void setVerticalDecay (Ogre::Real verticalDecay);

        Ogre::Real getVerticalDecay ();

        void setGroundLevel (Ogre::Real GroundLevela);

        Ogre::Real getGroundLevel ();

        void forceUpdate ();

    private:
        Ogre::Real mDensity;

        Ogre::Real mVerticalDecay;

        Ogre::Real mGroundLevel;

        Ogre::ColourValue mFogColour;

        PassSet mPasses;

        Ogre::MaterialPtr mDomeMaterial;

        Ogre::SceneNode *mDomeNode;

        Ogre::Entity *mDomeEntity;

        Ogre::SceneManager* mScene;

        // Called whenever something changes to update the sky dome.
        void updateSkyFogging();

    public:
        virtual void notifyCameraChanged (Ogre::Camera *cam);

    protected:
        virtual void setFarRadius (Ogre::Real radius);
};

}

#endif //GROUNDFOG_H

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