Method scale

packages/melonjs/src/math/observableVector2d.ts:166–168

* Multiply this vector values by the given scalar * @param x x scale value * @param [y] y scale value, if not passed, it uses the x value * @returns Reference to this object for method chaining

(x: number, y = x)

	 * @returns Reference to this object for method chaining
	 */
	scale(x: number, y = x) {
		return this.set(this.x * x, this.y * y);
	}

	/**
	 * Convert this vector into isometric coordinate space