OpenMW/apps/openmw/mwrender/water.hpp

#ifndef GAME_MWRENDER_WATER_H
#define GAME_MWRENDER_WATER_H

#include <Ogre.h>
#include <components/esm/loadcell.hpp>

namespace MWRender {

    /// Water rendering 	
    class Water : Ogre::RenderTargetListener
    {
        static const int CELL_SIZE = 8192;
        Ogre::Camera *mCamera;
        Ogre::SceneManager *mSceneManager;
        Ogre::Viewport *mViewport;

        Ogre::Plane mWaterPlane;
        Ogre::SceneNode *mWaterNode;
        Ogre::Entity *mWater;

        bool mIsUnderwater;
        int mTop;

        Ogre::Vector3 getSceneNodeCoordinates(int gridX, int gridY);

    protected:
        void preRenderTargetUpdate(const Ogre::RenderTargetEvent& evt);
        void postRenderTargetUpdate(const Ogre::RenderTargetEvent& evt);

        Ogre::RenderTarget* mReflectionTarget;
        Ogre::RenderTarget* mRefractionTarget;

    public:
        Water (Ogre::Camera *camera, const ESM::Cell* cell);
        ~Water();

        void toggle();

        void checkUnderwater(float y);
        void changeCell(const ESM::Cell* cell);
        void setHeight(const float height);

    };

}

#endif