#ifndef TERRAIN_H
#define TERRAIN_H

#include "vec3D.h"

class Terrain
{
public:
    Terrain(int width, int height);
    ~Terrain();

    void setHeight(int x, int z, float y);

    int width()  { return _width;  }
    int length() { return _length; }
    float getHeight(int x, int z) { return heights[z][x]; }

    void computeNormals();

    vec3D getNormals(int x, int z);

private:
    int _width;
    int _length;
    float** heights;
    vec3D** normals;
    bool computedNormals;
};

#endif // TERRAIN_H