You cannot call non-static methods from a static one (without supplying an object for the non-static method to work on). A static method (or field) does not refer to any particular object of the class (so, there is no rotation or location to speak of). You could make subclasses of the bullet for red team bullets and blue team bullets and then have each fire their specific types; or, you could make use of an inner class (a subclass of bullet in generic Car class) to link the bullet to its creator. The second way may be more preferable, as less code is required, only a method to return the type of its parent or the parent itself so the type can be determined.