float sinval1;
float cosval1; 
float angle_sec = (second() * PI/30.0) + (3 * HALF_PI);
float sinval2;
float cosval2; 
float angle_min = (minute() * PI/30.0) + (3 * HALF_PI);
float sinval3;
float cosval3; 
float angle_heu = (hour() * PI/6.0) + (3 * HALF_PI);
float rayon_sec = 100.0;
float rayon_min = 70.0;
float rayon_heu = 40.0;
int sec = 0;
int minut = 0;  
int heure = 0;
float x1, y1, x2, y2, x3, y3;

void setup(){
  frameRate(1);
  size(300, 300);
  background(0);
  noStroke();
  smooth();
}

void draw(){
  noStroke();
  fill(0, 8);
  rect (0, 0, width, height);
  
sec = second();
minut = minute();
heure = hour();
  
  // definit l'aiguille des secondes
  angle_sec = (second() * PI/30.0) + (3 * HALF_PI);
  sinval1 = sin (angle_sec);
  cosval1 = cos (angle_sec);
  x1 = width/2 + (cosval1 * rayon_sec);
  y1 = height/2 + (sinval1 * rayon_sec);
  stroke(255);
  strokeWeight(2);
  line (width/2, height/2, x1, y1);
  
  // definit l'aiguille des minutes
  angle_min = (minute() * PI/30.0) + (3 * HALF_PI);
  sinval2 = sin (angle_min);
  cosval2 = cos (angle_min);
  x2 = width/2 + (cosval2 * rayon_min);
  y2 = height/2 + (sinval2 * rayon_min);
  stroke (102, 0, 0);
  line (width/2, height/2, x2, y2);
  
  // definit l'aiguille des heures
  sinval3 = sin (angle_heu);
  cosval3 = cos (angle_heu);
  x3 = width/2 + (cosval3 * rayon_heu);
  y3 = height/2 + (sinval3 * rayon_heu);
  stroke (51, 0, 0);
  line (width/2, height/2, x3, y3);

  sec +=1;
}