Circle: groupMath center: Vec2 radius: number transform(tr: Mat23 , s?: Shape ): Ellipse bbox(r?: Rect ): Rect area(): number clone(): Circle collides(shape: ShapeType | Vec2 ): boolean contains(point: Vec2 ): boolean raycast(origin: Vec2 , direction: Vec2 ): RaycastResult random(): Vec2 serialize(): any support(direction: Vec2 ): Vec2 gjkCenter(): Vec2 closestPt(p: Vec2 ): Vec2 | undefined