Unity - Scripting API: PolygonCollider2D.CreatePrimitive

public function CreatePrimitive(sides: int, scale: Vector2 = Vector2.one, offset: Vector2 = Vector2.zero): void;

Parameters

sides	The number of sides in the polygon. This must be greater than two.
scale	The X/Y scale of the polygon. These must be greater than zero.
offset	The X/Y offset of the polygon.

Creates as regular primitive polygon with the specified number of sides.