void keyPressed() {
  
  if (keyCode==UP) {
    rangeCount+=10;
  }
  if (keyCode==DOWN) {
    rangeCount-=10;
  }
  if (keyCode==RIGHT) {
    noiseValue+=0.001;
  }
  if (keyCode==LEFT) {
    noiseValue-=0.001;
  }
  if(key=='a' || key=='A') {
    //println("touche A enfoncée");
    dessineAxe = !dessineAxe;
  }
  if(key=='p' || key=='P') {
    //println("touche P enfoncée");
    dessinePlan = !dessinePlan;
  }
  if(key=='n' || key=='N') {
    //println("touche P enfoncée");
    afficheNoms = !afficheNoms;
  }
  range = constrain(rangeCount,0,1000);
  if(debug) {
    println("range vaut  "+range);
  }
}

void mousePressed(){
  for(int i=0; i<n.length; i++)
    n[i].pick(mouseX,mouseY); //pick an object
}