// Daniel Shiffman

// https://thecodingtrain.com/CodingChallenges/126-toothpicks.html

// https://youtu.be/-OL_sw2MiYw

​

class Toothpick {

​

  constructor(x, y, d) {

    this.newPick = true;

​

    this.dir = d;

    if (this.dir == 1) {

      this.ax = x - len / 2;

      this.bx = x + len / 2;

      this.ay = y;

      this.by = y;

    } else {

      this.ax = x;

      this.bx = x;

      this.ay = y - len / 2;

      this.by = y + len / 2;

    }

  }

​

​

  intersects(x,y) {

    if (this.ax == x && this.ay == y) {

      return true;

    } else if (this.bx == x && this.by == y) {

      return true;

    } else {

      return false;

    }

  }

​

​

​

   createA(others) {

    let available = true;

    for (let other of others) {

      if (other != this && other.intersects(this.ax, this.ay)) {

        available = false;

        break;

      }

    }

    if (available) {

      return new Toothpick(this.ax, this.ay, this.dir * -1);

    } else {

      return null;

    }

  }

​

   createB(others) {

    let available = true;

    for (let other of others) {

      if (other != this && other.intersects(this.bx, this.by)) {

        available = false;

        break;

      }

    }

    if (available) {

      return new Toothpick(this.bx, this.by, this.dir * -1);

    } else {

      return null;

    }

  }

​

  show(factor) {

    stroke(0);

    if (this.newPick) {

      stroke(0, 0, 255);

    }

    strokeWeight(1 / factor);

    line(this.ax, this.ay, this.bx, this.by);

  }

}