class ObservablePoint {
  /**
   * Creates a new `ObservablePoint`
   * @param cb - callback function triggered when `x` and/or `y` are changed
   * @param scope - owner of callback
   * @param {number} [x=0] - position of the point on the x axis
   * @param {number} [y=0] - position of the point on the y axis
   */
  constructor(cb, scope, x = 0, y = 0) {
    this._x = x, this._y = y, this.cb = cb, this.scope = scope;
  }
  /**
   * Creates a clone of this point.
   * The callback and scope params can be overridden otherwise they will default
   * to the clone object's values.
   * @override
   * @param cb - The callback function triggered when `x` and/or `y` are changed
   * @param scope - The owner of the callback
   * @returns a copy of this observable point
   */
  clone(cb = this.cb, scope = this.scope) {
    return new ObservablePoint(cb, scope, this._x, this._y);
  }
  /**
   * Sets the point to a new `x` and `y` position.
   * If `y` is omitted, both `x` and `y` will be set to `x`.
   * @param {number} [x=0] - position of the point on the x axis
   * @param {number} [y=x] - position of the point on the y axis
   * @returns The observable point instance itself
   */
  set(x = 0, y = x) {
    return (this._x !== x || this._y !== y) && (this._x = x, this._y = y, this.cb.call(this.scope)), this;
  }
  /**
   * Copies x and y from the given point (`p`)
   * @param p - The point to copy from. Can be any of type that is or extends `IPointData`
   * @returns The observable point instance itself
   */
  copyFrom(p) {
    return (this._x !== p.x || this._y !== p.y) && (this._x = p.x, this._y = p.y, this.cb.call(this.scope)), this;
  }
  /**
   * Copies this point's x and y into that of the given point (`p`)
   * @param p - The point to copy to. Can be any of type that is or extends `IPointData`
   * @returns The point (`p`) with values updated
   */
  copyTo(p) {
    return p.set(this._x, this._y), p;
  }
  /**
   * Accepts another point (`p`) and returns `true` if the given point is equal to this point
   * @param p - The point to check
   * @returns Returns `true` if both `x` and `y` are equal
   */
  equals(p) {
    return p.x === this._x && p.y === this._y;
  }
  /** Position of the observable point on the x axis. */
  get x() {
    return this._x;
  }
  set x(value) {
    this._x !== value && (this._x = value, this.cb.call(this.scope));
  }
  /** Position of the observable point on the y axis. */
  get y() {
    return this._y;
  }
  set y(value) {
    this._y !== value && (this._y = value, this.cb.call(this.scope));
  }
}
ObservablePoint.prototype.toString = function() {
  return `[@pixi/math:ObservablePoint x=${this.x} y=${this.y} scope=${this.scope}]`;
};
export {
  ObservablePoint
};
//# sourceMappingURL=ObservablePoint.mjs.map