#ifndef __PBMWALL_H__
#define __PBMWALL_H__
/***************************************************************************
   File:        PBMWall.h                                                            
   Created:     03/03/2002                                                          
   Author:      Maxim Garber                                                
                Computer Science Department                                 
                University of North Carolina - Chapel Hill                  
                garber@cs.unc.edu                                           
                                                                            
   Description: An axis aligned wall with rendering and collision detection                                                           
                                                                            
----------------------------------------------------------------------------.
   Copyright 2002 Maxim Garber                                              
   UNC Collide Research Group                                               
                                                                            
                                                                            
*****************************************************************************/
#include "PQP.h"
#include "PBMConfiguration.h"

class PBMWall
{
public:
  PBMWall(float position[3], float normal[3], float right[3], float up[3], float width, float height);
  ~PBMWall();

   //////////////////////////////////////////////////////////////////////////////
  // Simulation 
  void Update(float timeStep);

  //////////////////////////////////////////////////////////////////////////////
  // Rendering
  void Draw();
  void SetColor(float color[3]){for(unsigned int i=0; i<3; i++) _color[i] = color[i];}

  //////////////////////////////////////////////////////////////////////////////
  // state
  void GetNormal  (float normal[3]);
  void GetPosition(float position[3]);

  //////////////////////////////////////////////////////////////////////////////
  // Test For Culling
  bool IsActive(){return true;}

  //////////////////////////////////////////////////////////////////////////////
  // Collision Testing
  void GetCollisionGeometry(PQP_Model* &geometry, Frame3 &frame);

private:
  // position of center
  float _position[3];
  
  // orientation vectors
  float _normal[3],
        _up[3], 
        _right[3];

  // rendering and collision matrices
  float _collisionRotation[3][3];
  float _renderTransform  [16];

  // extents
  float _width,     // along up vector
        _height;    // along right vector

  // color
  float _color[3];

  // collision model
  PQP_Model* _collisionGeometry;

  void _DrawGridPlane(unsigned int widthDivisions, unsigned int heightDivisions);
  void _InitCollision();

};
#endif //__PBMWALL_H__