this.pos = createVector(random(width), random(height));

  this.vel = createVector(0, 0);

  this.acc = createVector(0, 0);

  this.maxspeed = random(3.5) + 0.5;

  this.white = floor(random(3));

  // this.white = 0;

  this.colours = [...colours];

  // this.cap = floor(random(2));

  this.cap = 0;

  this.currentColour = floor(random(colours.length));

  this.colourHex = this.colours[this.currentColour];

  this.colourSwapFrame = floor(random(1000)) + 100;

​

  this.prevPos = this.pos.copy();

​

  this.newColour = function () {

    if (frameCount % this.colourSwapFrame === 0) {

      this.currentColour++;

      this.colourHex = this.colours[

        (this.currentColour + 1) % this.colours.length

      ];

    }

  };

​

  this.update = function () {

    this.vel.add(this.acc);

    this.vel.limit(this.maxspeed);

    this.pos.add(this.vel);

    this.acc.mult(0);

  };

​

  this.follow = function (vectors) {

    let x = floor(this.pos.x / scl);

    let y = floor(this.pos.y / scl);

    let index = x + y * cols;

    this.applyForce(vectors[index]);

  };

​

  this.applyForce = function (force) {

    this.acc.add(force);

  };

​

  this.show = function () {

    // stroke(255,10);

    strokeWeight(5 / this.maxspeed);

    // this.cap ? strokeCap(PROJECT) : strokeCap(ROUND);

    // point(this.pos.x, this.pos.y);

    // fill(colourHex);

    let lineColour = color(this.colourHex);

    lineColour.setAlpha(10)

    this.white ?  stroke(lineColour): stroke(255, 10);

    // circle(this.pos.x, this.pos.y, 4/this.maxspeed );

    line(this.pos.x, this.pos.y, this.prevPos.x, this.prevPos.y);

    this.updatePrev();

  };

​

  this.updatePrev = function () {

    this.prevPos.x = this.pos.x;

    this.prevPos.y = this.pos.y;

  };

​

  this.edges = function () {

    if (this.pos.x > width) {

      this.pos.x = 0;

      this.updatePrev();

    }

    if (this.pos.x < 0) {

      this.pos.x = width;

      this.updatePrev();

    }

    if (this.pos.y > height) {

      this.pos.y = 0;

      this.updatePrev();

    }

    if (this.pos.y < 0) {

      this.pos.y = height;

      this.updatePrev();

    }

  };

}

​