Geom.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 _GEOM_H
#define _GEOM_H
 
#include "../matrix4x4.h"
#include "../vector3.h"
 
struct CollisionContact;
class GeomTree;
struct isect_t;
struct Sphere;
struct BVHNode;
 
class Geom {
public:
    Geom(const GeomTree *geomtree, const matrix4x4d &m, const vector3d &pos, void *data);
    void MoveTo(const matrix4x4d &m);
    void MoveTo(const matrix4x4d &m, const vector3d &pos);
    inline const matrix4x4d &GetInvTransform() const { return m_invOrient; }
    inline const matrix4x4d &GetTransform() const { return m_orient; }
    //matrix4x4d GetRotation() const;
    inline const vector3d &GetPosition() const { return m_pos; }
    inline void Enable() { m_active = true; }
    inline void Disable() { m_active = false; }
    inline bool IsEnabled() const { return m_active; }
    inline const GeomTree *GetGeomTree() const { return m_geomtree; }
    void Collide(Geom *b, void (*callback)(CollisionContact *)) const;
    void CollideSphere(Sphere &sphere, void (*callback)(CollisionContact *)) const;
    inline void *GetUserData() const { return m_data; }
    inline void SetMailboxIndex(int idx) { m_mailboxIndex = idx; }
    inline int GetMailboxIndex() const { return m_mailboxIndex; }
    inline void SetGroup(int g) { m_group = g; }
    inline int GetGroup() const { return m_group; }
 
    matrix4x4d m_animTransform;
 
private:
    void CollideEdgesWithTrisOf(int &maxContacts, const Geom *b, const matrix4x4d &transTo, void (*callback)(CollisionContact *)) const;
    void CollideEdgesTris(int &maxContacts, const BVHNode *edgeNode, const matrix4x4d &transToB,
        const Geom *b, const BVHNode *btriNode, void (*callback)(CollisionContact *)) const;
 
    // double-buffer position so we can keep previous position
    matrix4x4d m_orient, m_invOrient;
    vector3d m_pos;
    const GeomTree *m_geomtree;
    void *m_data;
    int m_group;
    int m_mailboxIndex; // used to avoid duplicate collisions
    bool m_active;
};
 
#endif /* _GEOM_H */