tgHillyGround.h

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#ifndef TG_HILLY_GROUND_H
#define TG_HILLY_GROUND_H

#include "tgBulletGround.h"

#include "LinearMath/btScalar.h"
#include "LinearMath/btVector3.h"
// Forward declarations
class btRigidBody;
class btTriangleIndexVertexArray;

class tgHillyGround : public tgBulletGround
{
    public:

        struct Config
        {
            public:
                Config(btVector3 eulerAngles = btVector3(0.0, 0.0, 0.0),
                       btScalar friction = 0.5,
                       btScalar restitution = 0.0,
                       btVector3 size = btVector3(500.0, 1.5, 500.0),
                       btVector3 origin = btVector3(0.0, 0.0, 0.0),
                       size_t nx = 50,
                       size_t ny = 50,
                       double margin = 0.05,
                       double triangleSize = 5.0,
                       double waveHeight = 5.0,
                       double offset = 0.5);

                btVector3 m_eulerAngles;

                btScalar  m_friction;

                btScalar  m_restitution;

                btVector3 m_size;

                btVector3 m_origin;

                size_t m_nx;

                size_t m_ny;

                double m_margin;

                double m_triangleSize;

                double m_waveHeight;

                double m_offset;
        };

        tgHillyGround();

        tgHillyGround(const tgHillyGround::Config& config);

        virtual ~tgHillyGround() { }

        virtual btRigidBody* getGroundRigidBody() const;

        btCollisionShape* hillyCollisionShape();

    private:  
        Config m_config;

        btTriangleIndexVertexArray* createMesh(size_t triangleCount, int indices[], size_t vertexCount, btVector3 vertices[]);

        btCollisionShape *createShape(btTriangleIndexVertexArray * pMesh);

        void setVertices(btVector3 vertices[]);

        void setIndices(int indices[]);

};

#endif  // TG_HILLY_GROUND_H