int p = 200;
float aa = 0;
float ab = 0;
float ac = 100;
float ad = 100;
float ae = 200;
float af = 200;
float aaspeed = 1;
float abspeed = 1;
float acspeed = 1;
float adspeed = 1;
float aespeed = 1;
float afspeed = 1;

int aadirection=4;
int abdirection=4;
int acdirection=2;
int addirection=2;
int aedirection=7;
int afdirection=7;

class line {

  void drawline() {
    aa = aa + (aaspeed * aadirection);
    ab = ab + (abspeed * abdirection);
    ac = ac + (acspeed * acdirection);
    ad = ad + (adspeed * addirection);
    ae = ae + (aespeed * aedirection);
    af = af + (afspeed * afdirection);

      if (aa > width-p || aa < 0) {
      aadirection *= -1;
      }
      if (ab > height-p||ab <0) {
        abdirection*=-1;
      }
      if (ac > width-p || ac < 0) {
      acdirection *= -1;
      }
      if (ad > height-p||ad <0) {
        addirection*=-1;
      }
      if (ae > width-p || ae < 0) {
      aedirection *= -1;
      }
      if (af > height-p||af <0) {
        afdirection*=-1;
      }
    fill(100,100,255);
    rect(aa,ab,150,150);
    rect(ac,ad,150,150);
    rect(ae,af,150,150);




    }
 }