#ifndef MAT_WATER_H
#define MAT_WATER_H
#include <Ogre.h>
class App;
class Water : public Ogre::FrameListener, Ogre::RenderTargetListener {
	Ogre::SceneManager *mScnMgr;
	Ogre::RenderWindow * mWindow;
	Ogre::SceneNode *mWaterNode, *mCameraNode;
	Ogre::Vector3 mCameraPosition;
	Ogre::Camera *mCamera;
	Ogre::Plane mWaterPlane,
		mReflectionPlane,
		mReflectionClipPlaneAbove,
		mReflectionClipPlaneBelow,
		mRefractionClipPlaneAbove,
		mRefractionClipPlaneBelow;
	bool mAbove;
	std::vector<Ogre::Entity *> mWaterMeshes;
	// Reflection
	Ogre::RenderTexture * mReflectionTexture;
	Ogre::Camera * mReflectionCamera;
	// Refraction
	Ogre::RenderTexture * mRefractionTexture;
	Ogre::Camera * mRefractionCamera;
	bool mInRefTexUpdate;
	Ogre::Timer mtexture_dump;
	void create_cameras();

public:
	Water();
	virtual ~Water();
	void create_textures();
	void dump_textures();
	void createWater(Ogre::RenderWindow * window, Ogre::Camera *camera);
	void init();
	void updateWater(float delta);
	bool frameEnded(const Ogre::FrameEvent &evt) override;
	bool frameRenderingQueued(const Ogre::FrameEvent &evt) override;
	void preRenderTargetUpdate(const Ogre::RenderTargetEvent &evt) override;
	void
	postRenderTargetUpdate(const Ogre::RenderTargetEvent &evt) override;
	void add_submerged_entity(Ogre::Entity *ent);
	void add_surface_entity(Ogre::Entity *ent);
};
#endif