TerrainBody.h

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// Copyright © 2008-2023 Pioneer Developers. See AUTHORS.txt for details
// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
 
#ifndef _TERRAINBODY_H
#define _TERRAINBODY_H
 
#include "Body.h"
#include "JsonFwd.h"
#include "matrix4x4.h"
 
class BaseSphere;
class Camera;
class Frame;
class Space;
class SystemBody;
 
namespace Graphics {
    class Renderer;
}
 
class TerrainBody : public Body {
public:
    OBJDEF(TerrainBody, Body, TERRAINBODY);
 
    virtual void Render(Graphics::Renderer *r, const Camera *camera, const vector3d &viewCoords, const matrix4x4d &viewTransform) override;
    virtual void SubRender(Graphics::Renderer *r, const matrix4x4d &modelView, const vector3d &camPos) {}
    virtual void SetFrame(FrameId fId) override;
    virtual bool OnCollision(Body *b, Uint32 flags, double relVel) override { return true; }
    virtual double GetMass() const override { return m_mass; }
    double GetTerrainHeight(const vector3d &pos) const;
    virtual const SystemBody *GetSystemBody() const override { return m_sbody; }
 
    // returns value in metres
    double GetMaxFeatureRadius() const { return m_maxFeatureHeight; }
 
    // implements calls to all relevant terrain management sub-systems
    static void OnChangeDetailLevel();
 
protected:
    TerrainBody() = delete;
    TerrainBody(SystemBody *);
    TerrainBody(const Json &jsonObj, Space *space);
    virtual ~TerrainBody();
 
    void InitTerrainBody();
 
    virtual void SaveToJson(Json &jsonObj, Space *space) override;
 
private:
    const SystemBody *m_sbody;
    double m_mass;
    std::unique_ptr<BaseSphere> m_baseSphere;
    double m_maxFeatureHeight;
};
 
#endif