CubicBezierCurve constructor
Implementation
CubicBezierCurve(Vector2? v0, Vector2? v1, Vector2? v2, Vector2? v3) {
type = 'CubicBezierCurve';
this.v0 = v0 ?? Vector2(null, null);
this.v1 = v1 ?? Vector2(null, null);
this.v2 = v2 ?? Vector2(null, null);
this.v3 = v3 ?? Vector2(null, null);
}