let cols = ["#1fbfff","#1fdaff","#2ceef2","#8ccfb9","#d2b04b","#ffb01f","#fd8f21","#fc6722","#ea4334","#d7474c"]

​

function setup() {

  createCanvas(2880, 1920);

  for(i = 0; i < 7; i++){

    movers[movers.length] = new Mover(random(0, width), height, movers.length);

    movers[movers.length] = new Mover(random(0, width), 0, movers.length);

    movers[movers.length] = new Mover(0, random(0, height), movers.length);

    movers[movers.length] = new Mover(width, random(0, height), movers.length);

  }

  blendMode(ADD);

  background(0);

}

​

function draw() {

  for(a = 0; a < 200; a++){

    for(i = 0; i < movers.length; i++){

    movers[i].update();

    }

  }

}

​

class Mover{

  constructor(x, y, index){

    this.index = index;

    this.cpos = createVector(x, y);

    this.npos = createVector(x, y);

    this.vel = createVector(0, -1);

    // this.vel.setHeading(-PI);

    this.turn = createVector(1, 0);

    this.wiggle = createVector(0,1);

    this.wiggle.setMag(1);

    this.xoff = 0.0001;

    this.tav = -PI;

    this.tat = 0.001;

    this.taw = 0;

    this.i = 0;

    this.col = color(cols[this.index % cols.length])

  }

  update(){

    // this.xoff = this.xoff + 0.0000001;

    if(this.cpos.x > 10 && this.cpos.y > 10 && this.cpos.x < (width - 10) && this.cpos.y < (height - 10)){

      this.taw = this.vel.heading() + map(noise(this.cpos.x / 1000, this.cpos.y / 1000, this.index / 100), 0, 1, -1, 1);

    }else{

      this.taw = this.vel.heading();

    }

    this.wiggle.setHeading(this.taw);

    this.vel.add(this.wiggle);

    this.vel.limit(2);

    this.npos = p5.Vector.add(this.cpos, this.vel);

    this.col.setAlpha(2);

    stroke(this.col);

    strokeWeight(1);

    line(this.cpos.x, this.cpos.y, this.npos.x, this.npos.y);

    this.cpos.add(this.vel);

    if(this.cpos.x > width){

      this.cpos.x = 10;

      this.cpos.y = random(10, height - 10);

    }

    if(this.cpos.y > height){

      this.cpos.x = random(10, width - 10);

      this.cpos.y = 10;

    }

    if(this.cpos.x < 0){

      this.cpos.x = width -10;

      this.cpos.y = random(10, height - 10);

    }

    if(this.cpos.y < 0){

      this.cpos.x = random(10, width - 10);

      this.cpos.y = height -10;

    }

  }

}