Terrain.h

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#ifndef TERRAIN_H_
#define TERRAIN_H_

#include "Box2D/Box2D.h"
#include "SFML/Graphics.hpp"
#include "SFML/Window.hpp"

#include "Config.h"

enum e_terrain_type {DEFAULT, V_TERRAIN, V2BL_TERRAIN, RAMP, BOX, V_STEPPER};

class Terrain {
public:
    Terrain();
    Terrain(b2World* world, sf::RenderWindow& window,  config::sTerrain terrainParam, int WINDOW_X_PX, double bodyLength=1);
    virtual ~Terrain();

    /*Default terrain is linear ground of width 2*m_runaway located at m_posY from the top of the window*/
    //TODO remove WINDOW_X_PX parameters and deduce it from window with window.getSize().x
    virtual void create(b2World* world, sf::RenderWindow& window, config::sTerrain terrainParam, int WINDOW_X_PX, double bodyLength);

    virtual void createBody(b2World* world);

    virtual void drawBody(sf::RenderWindow& window);

    virtual e_terrain_type getType();

    virtual b2Vec2 getTopLeftCorner();
    virtual b2Vec2 getTopRightCorner();
    virtual b2Vec2 getBottom();

    double getVLength(){return 0;};

    b2Body* getBody();

    const double getScale();

protected:
    b2Body* m_groundBody; //Pointer on the Box2D body of the terrain
    double m_bodyLength; //Copy of the body length unit. Used to convert the body length units given by the user to real ones (in m)
    double m_M_TO_PX; //Scale to do the conversion from real dimensions (m) to simulated ones (pixels)
    double m_width; //Width of the terrain when it makes sense. In the case of the default terrain it doesn't represent an actual dimension
    double m_height; //Height of the terrain. In the case of the default terrain it doesn't represent an actual dimension.
    double m_runaway; //Runaway of the terrain. In the case of the default terrain the length of the ground is of 3*m_runaway (with the width of the window of 2*m_runaway)
    double m_angle; //Angle of the obstacle in the terrain. In the case of the default terrain it doesn't make sense and is set to 0
    double m_posY=2.5; //In the case of the default terrain it represents the distance from the top of the window/world to the ground.

    config::sTerrain m_terrainParam; //Terrain configuration parameters described in Config.h file
};

#endif /* TERRAIN_H_ */