this.pos = createVector(x,y);

  this.vel = createVector();

  this.acc = createVector();

  this.size = 8;

  this.maxSpeed = 4;

  this.maxForce = 0.3;

}

​

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

  this.target = createVector(x,y);

}

​

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.inVision = function(other){

  var inVis = false;

  var theta = this.getTheta();

}

​

​

Particle.prototype.getTheta = function(){

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

  return theta;

}

​

Particle.prototype.show = function(){

  theta = this.getTheta();

  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);

  noFill();

  arc(0,-this.size*10,-this.size*20,-this.size*23,PI,TWO_PI);

  line(this.size*10,-this.size*10,-this.size*10,-this.size*10);

  line(0,0,this.size*10,-this.size*10);

  line(0,0,-this.size*10,-this.size*10);

  pop();

}