lineTo( x, y ) {

		const curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );
		this.curves.push( curve );

		this.currentPoint.set( x, y );

		return this;

	}
Adds an instance of {@link LineCurve} to the path by connecting
the current point with the given one.

@param {number} x - The x coordinate of the end point.
@param {number} y - The y coordinate of the end point.
@return {Path} A reference to this path.