geometry.h

   1 #ifndef GEOMETRIA_H
   2 #define GEOMETRIA_H
   3 #include "SDL/SDL.h"
   4 #include "SDL/SDL_opengl.h"
   5
   6 struct Ponto {
   7         double x,y;
   8         Ponto () { }
   9         Ponto (double x1, double y1) {x = x1; y = y1;}
  10 };
  11
  12 double operator*(const Ponto &a, const Ponto &b);
  13 Ponto operator-(const Ponto &a, const Ponto &b);
  14 Ponto operator+(const Ponto &a, const Ponto &b);
  15
  16 struct Vetor {
  17         double x,y;
  18 };
  19
  20 class Linha {
  21         public:
  22         Ponto vertices[2];
  23
  24         void desenha();
  25         Linha(double x1,double y1,double x2, double y2);
  26         Linha(Ponto a, Ponto b) {vertices[0] = a; vertices[1] = b;}
  27 };
  28
  29 class Rect {
  30         private:
  31                 void normaliza();
  32         public:
  33         Ponto vertices[2];
  34         Rect(double x1,double y1,double x2, double y2);
  35         Rect(Ponto a, Ponto b) {vertices[0] = a; vertices[1] = b; normaliza();}
  36 };
  37
  38 void drawCircle(double radius, int lines);
  39
  40 #endif