STONE.H

#ifndef STONE_H 
#define STONE_H 
 
#include "Color.h" 
#include "Point.h" 
 
class Stone { 
 public: 
  Stone(); 
  ~Stone(); 
  Stone operator=(Stone a); 
 
  void set_dimensions(GLfloat x, GLfloat y, GLfloat z); 
  void set_dimensions(Point p); 
  Point get_dimensions() {return dimensions;}; 
 
  /* p = 0 --> sharp corners, p == 1 --> completely rounded corners */ 
  void erode(float p); 
  float get_erosion() {return erosion;}; 
 
  void translate(GLfloat x, GLfloat y, GLfloat z); 
  void translate(Point p); 
 
  /* Angle in degrees */ 
  void rotate_self_aboutz(GLfloat angle); 
 
  void draw(); 
 
  void draw_shadow(Point dlight); 
  void draw_shadow(Point dlight, GLfloat blur, Color color, Color diffuse); 
 
 private: 
  Point translation; 
  GLfloat rotation; 
  /* dimensions contains the length, width, and height of the stone */ 
  Point dimensions; 
 
  GLfloat erosion; 
 
  Point points[24]; 
  int points_valid; 
  void compute_points(); 
 
  int transforms_valid; 
  inline Point trans_rot_point(Point p, float c, float s); 
  inline Point transform_point(Point p, float c, float s); 
  void transform_points(); 
   
  void draw_faces(int flat = 0); 
  void draw_faces(Point *p, int flat = 0); 
 
  void draw_edges(int flat = 0); 
  void draw_edges(Point *p, int flat = 0); 
  void draw_edge(Point n1, Point n2, Point *p, int a, int b, int c, int d, 
 int flat = 0); 
 
  void draw_corners(int flat = 0) {draw_corners(points, flat);}; 
  void draw_corners(Point *p, int flat = 0); 
}; 
 
#endif