class EllipseModification: Modification
placeable: {entity: Entity, factory: fun(): Entity}
topleft: Vector2
bottomright: Vector2
__new(
    self: EllipseModification,
    placeable: {entity: Entity, factory: fun(): Entity},
    center: any,
    rx: any,
    ry: any
)
center: any
rx: any
ry: any