constructor(x,y){

    this.pos = createVector(x, y)

    this.vel = createVector(0, 0)

    this.acc = createVector(0, 0)

    this.r=16 //size

    this.maxSpeed = 4

    this.maxForce = 0.5

  }

  seek(target){

    let force = p5.Vector.sub(target, this.pos)

    // if (force.mag() < 110){

    //   force.limit(2.5)

    // } else {

    //   force.limit(this.maxSpeed)

    // }

    force.setMag(this.maxSpeed)

    force.sub(this.vel)

    force.limit(this.maxForce)

    this.applyForce(force)

  }

  applyForce(force){

    this.acc.add(force)

  }

  update() {

    this.vel.add(this.acc)

    this.vel.limit(this.maxSpeed)

    this.pos.add(this.vel)

    this.acc.set(0, 0)

  }

  show(){

    stroke(255)

    strokeWeight(2)

    fill(255)

    push()

    translate(this.pos.x,this.pos.y)

    rotate(this.vel.heading())

    triangle(-this.r,-this.r/2,-this.r,this.r/2,this.r,0)

    pop()

  }

}