constructor(x, y, index) {

    this.pos1 = createVector(x, y);

    this.move = createVector(0, -10);    

    this.pos2 = p5.Vector.add(this.pos1, this.move);

    this.t1 = createVector(0, 20);

    this.t2 = createVector(0, 20);

    this.pos3 = p5.Vector.add(this.pos1, this.t1);

    this.pos4 = p5.Vector.add(this.pos1, this.t2);

    this.index = index;

    this.turn = PI;

    this.xoff = 0.001;

    this.yoff = 0.1

    this.h = this.move.heading();

    this.c = 0;

    this.col = color(cols[this.c]);

  }

  update() {

    this.yoff = this.yoff + 0.001

    this.move.setMag(noise(this.yoff) * 30 + 5);

    this.t1.setMag(noise(this.yoff) * 30 + 10);

    this.t2.setMag(noise(this.yoff) * 30 + 10);

    if(this.pos1.x < 0) {

      this.pos1.x = this.pos1.x + width;

      this.pos2.x = this.pos2.x + width;

      this.pos3.x = this.pos3.x + width;

      this.pos4.x = this.pos4.x + width;

    }

    if(this.pos1.y < 0) {

      this.pos1.y = this.pos1.y + height;

      this.pos2.y = this.pos2.y + height;

      this.pos3.y = this.pos3.y + height;

      this.pos4.y = this.pos4.y + height;

    }

    if(this.pos1.x > width) {

      this.pos1.x = this.pos1.x - width;

      this.pos2.x = this.pos2.x - width;

      this.pos3.x = this.pos3.x - width;

      this.pos4.x = this.pos4.x - width;

    }

    if(this.pos1.y > height) {

      this.pos1.y = this.pos1.y - height;

      this.pos2.y = this.pos2.y - height;

      this.pos3.y = this.pos3.y - height;

      this.pos4.y = this.pos4.y - height;

    }

    this.h = this.move.heading();

    this.t1.setHeading(this.h + (PI / 1.5))

    this.t2.setHeading(this.h - (PI / 1.5))

    this.pos3 = p5.Vector.add(this.pos1, this.t1);

    this.pos4 = p5.Vector.add(this.pos1, this.t2);

    this.c ++;

    if(this.c == cols.length) this.c = 0;

    this.col = color(cols[this.c]);

    stroke(0);

    fill(this.col)

    triangle(this.pos1.x, this.pos1.y, this.pos2.x, this.pos2.y, this.pos3.x, this.pos3.y);

    triangle(this.pos1.x, this.pos1.y, this.pos2.x, this.pos2.y, this.pos4.x, this.pos4.y);

    noStroke();

    circle(this.pos1.x, this.pos1.y, this.move.mag());

    this.xoff = this.xoff + 0.1;

    this.turn = noise(this.xoff) * (PI * PI);

    this.move.setHeading(this.turn);

    this.pos1.x = this.pos2.x;

    this.pos1.y = this.pos2.y;

    this.pos2 = p5.Vector.add(this.pos1, this.move);

​

  }

}