text: /**
   * PANDA 3D SOFTWARE
   * Copyright (c) Carnegie Mellon University.  All rights reserved.
   *
   * All use of this software is subject to the terms of the revised BSD
   * license.  You should have received a copy of this license along
   * with this source code in a file named "LICENSE."
   *
   * @file collisionFloorMesh.h
   * @author zpavlov
   * @date 2007-06-28
   */
  
  #ifndef COLLISIONFLOORMESH_H
  #define COLLISIONFLOORMESH_H
  
  #include "pandabase.h"
  
  #include "collisionPlane.h"
  #include "clipPlaneAttrib.h"
  #include "look_at.h"
  #include "pvector.h"
  
  class GeomNode;
  
  /**
   * This object represents a solid made entirely of triangles, which will only
   * be tested again z axis aligned rays
   */
  class EXPCL_PANDA_COLLIDE CollisionFloorMesh : public CollisionSolid {
  public:
    typedef struct {
      unsigned int p1;
      unsigned int p2;
      unsigned int p3;
      PN_stdfloat min_x;
      PN_stdfloat max_x;
      PN_stdfloat min_y;
      PN_stdfloat max_y;
    } TriangleIndices;
  
  PUBLISHED:
    INLINE CollisionFloorMesh();
  
    INLINE void add_vertex(const LPoint3 &vert);
    void add_triangle(unsigned int pointA, unsigned int pointB, unsigned int pointC);
  
    INLINE unsigned int get_num_vertices() const;
    INLINE const LPoint3 &get_vertex(unsigned int index) const;
    MAKE_SEQ(get_vertices, get_num_vertices, get_vertex);
    INLINE unsigned int get_num_triangles() const;
    INLINE LPoint3i get_triangle(unsigned int index) const;
    MAKE_SEQ(get_triangles, get_num_triangles, get_triangle);
  
    virtual LPoint3 get_collision_origin() const;
  
  PUBLISHED:
    MAKE_SEQ_PROPERTY(vertices, get_num_vertices, get_vertex);
    MAKE_SEQ_PROPERTY(triangles, get_num_triangles, get_triangle);
  
  public:
    CollisionFloorMesh(const CollisionFloorMesh &copy);
    virtual CollisionSolid *make_copy();
  
  public:
  
    virtual void xform(const LMatrix4 &mat);
  
    virtual PStatCollector &get_volume_pcollector();
    virtual PStatCollector &get_test_pcollector();
  
    virtual void output(ostream &out) const;
    virtual void write(ostream &out, int indent_level = 0) const;
  
    INLINE static void flush_level();
  
  protected:
    virtual PT(BoundingVolume) compute_internal_bounds() const;
  
    virtual PT(CollisionEntry)
      test_intersection_from_ray(const CollisionEntry &entry) const;
    virtual PT(CollisionEntry)
      test_intersection_from_sphere(const CollisionEntry &entry) const;
  
    virtual void fill_viz_geom();
  
  private:
    typedef pvector<LPoint3> Vertices;
    typedef pvector<TriangleIndices> Triangles;
  
    Vertices _vertices;
    Triangles _triangles;
  
    static PStatCollector _volume_pcollector;
    static PStatCollector _test_pcollector;
  
  protected:
    void fillin(DatagramIterator& scan, BamReader* manager);
  
  public:
    static void register_with_read_factory();
    virtual void write_datagram(BamWriter* manager, Datagram &me);
  
    static TypedWritable *make_CollisionFloorMesh(const FactoryParams &params);
    static TypeHandle get_class_type() {
      return _type_handle;
    }
    static void init_type() {
      CollisionSolid::init_type();
      register_type(_type_handle, "CollisionFloorMesh",
                    CollisionSolid::get_class_type());
    }
    virtual TypeHandle get_type() const {
      return get_class_type();
    }
    virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
  
  private:
    static TypeHandle _type_handle;
  };
  
  #include "collisionFloorMesh.I"
  
  #endif
  