platform.cpp

   1 #include "platform.h"
   2 #include "math.h"
   3
   4 Platform::Platform(Linha aline, bool pass, double r, double g, double b): line(aline), passable(pass) {
   5         line.color[0] = r;
   6         line.color[1] = g;
   7         line.color[2] = b;
   8         }
   9
  10 void Platform::desenha() {
  11         line.desenha();
  12 }
  13
  14 double Platform::angle() {
  15         double x1 = line.vertices[0].x, x2 = line.vertices[1].x,
  16                    y1 = line.vertices[0].y, y2 = line.vertices[1].y;
  17         double size = sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));
  18         if (size == 0.0)
  19                 return 0;
  20         return asin(abs(y2-y1)/size);
  21 }