constructor(x,y){

    this.pos = createVector(x,y);

    this.color = 0;

    this.heading = 0;

    this.pen = true;

    this.weight = 0;

  }

  setColor(c){

    this.color = c;

  }

  setAngleMode(type){

    angleMode(type);

  }

  setWeight(w){

    this.weight = w;

  }

  penDown(){

    this.pen = true;

  }

  penUp(){

    this.pen = false;

  }

  rotate(a){

    this.heading += a;

    //this.draw();

  }

  moveForward(d){

    var futureX = d * sin(this.heading) + this.pos.x;

    var futureY = -d * cos(this.heading) + this.pos.y;

    if(this.pen){

      stroke(this.color);

      strokeWeight(this.weight);

      line(this.pos.x,this.pos.y,futureX,futureY);

    }

    this.pos.x = futureX;

    this.pos.y = futureY;

    //this.draw();

  }

  draw(){

    var theta = this.heading;

    push();

    translate(this.pos.x,this.pos.y);

    rotate(theta);

    strokeWeight(1);

    beginShape();

    vertex(0, -5 * 2);

    vertex(-5, 5 * 2);

    vertex(5, 5 * 2);

    endShape(CLOSE);

    pop();

  }

}

​

​