this.pos = createVector(x,y);

  this.vel = createVector();

  this.acc = createVector();

  this.size = s;

  //this.maxSpeed = -s+11;

  //this.maxSpeed = 4;

  this.maxForce = -1*(s/8)+6.5;

}

​

Particle.prototype.findTarget = function(x,y){

  this.target = createVector(x,y);

}

​

Particle.prototype.clearEffects = function(){

  this.maxSpeed = -this.size + 11;

}

​

Particle.prototype.effect = function(){

  this.maxSpeed = 1;

}

​

Particle.prototype.behaviors = function(){

  var arrive = this.arrive(this.target);

  arrive.mult(0.3);

  this.acc.add(arrive);

}

​

Particle.prototype.arrive = function(t){

  var dir = p5.Vector.sub(t,this.pos);

  var d = dir.mag();

  var speed = this.maxSpeed;

  if (d < 100){

    speed = map(d, 0, 100, 0, this.maxSpeed);

  }

  dir.setMag(speed);

  var steer = p5.Vector.sub(dir,this.vel);

  steer.limit(this.maxForce);

  return steer;

}

​

Particle.prototype.update = function(){

  this.pos.add(this.vel);

  this.vel.add(this.acc);

  this.acc.mult(0);

}

​

Particle.prototype.show = function(){

  var theta = this.vel.heading() + PI/2;

  fill(175);

  stroke(0);

  push();

  translate(this.pos.x,this.pos.y);

  rotate(theta);

  beginShape();

  vertex(0, -this.size*2);

  vertex(-this.size, this.size*2);

  vertex(this.size, this.size*2);

  endShape(CLOSE);

  pop();

}