class bullet {
  constructor(targetx, targety, radius, speed, shotPosX, shotPosY, hasMoved) {  // Add hasMoved parameter
      this.targetx = targetx;
      this.targety = targety;
      this.x = shotPosX;
      this.y = shotPosY;
      this.radius = radius;
      this.speed = speed;
      this.bulletHit = false;
      this.directionX = null;
      this.directionY = null;
      if ((this.directionX === null) || (this.directionY === null)) {
          this.directionX = this.targetx;
          this.directionY = this.targety;
      }
      this.hasMoved = hasMoved;  // Set this.hasMoved to the value of hasMoved

      this.projectile = createVector(this.x, this.y);
      this.direction = createVector(this.targetx - this.projectile.x, this.targety - this.projectile.y);
      this.direction.normalize();
  }

  draw() {
      push();
      fill(0, 255, 0);
      circle(this.projectile.x, this.projectile.y, this.radius);
      pop();
  }

  update(targetx, targety) {
      this.targetx = targetx;
      this.targety = targety;
      this.projectile.add(p5.Vector.mult(this.direction, this.speed));

      let hit = false;
      let shot = true;

      if (dist(this.projectile.x, this.projectile.y, this.targetx, this.targety) <= this.radius) {
          hit = true;
          shot = false;
          if (this.hasMoved && lives != 0 && this.bulletHit == false) {
              this.bulletHit = true;
              lives -= 1;
          }
      } else if (this.projectile.x < 0 - 10 || this.projectile.x > width + 10 || this.projectile.y < 0 - 10 || this.projectile.y > height + 10) {
          shot = false;
      }

      return { hit, shot };
  }
}