Two hundred and sixteen lifts

class Cube{

  float x,y,z,l,h,s,step,top,bottom=0;

  Cube(float x, float y, float l){

    this.x=x; this.y=y; this.l=l;

    top=random(20,300);

    step=random(1,3);

    z= bottom;

    h= random(255); s=55+ random(200);

  }

  void move(){

    fill(h,s,map(z,0,300,30,255));

    pushMatrix(); translate(x,y,z); box(l,l,l); popMatrix();

    z+=step;

    if(z>top){

      step=-(random(1,3));

    }else if (z<bottom){

      top=random(50,300);

      h= random(255); s= random(255);    

      step=(random(1,3));

    }

  }

}

​