Actors with the Active setting raise collision events and participate
in collisions with other actors and will be push or moved by actors sharing
the Active or Fixed setting.
Actors with the Fixed setting raise collision events and participate in
collisions with other actors. Actors with the Fixed setting will not be
pushed or moved by other actors sharing the Fixed. Think of Fixed
actors as "immovable/unstoppable" objects. If two Fixed actors meet they will
not be pushed or moved by each other, they will not interact except to throw
collision events.
Actors with the Passive setting only raise collision events, but are not
influenced or moved by other actors and do not influence or move other actors.
Actors with the PreventCollision setting do not participate in any
collisions and do not raise collision events.
An enum that describes the types of collisions actors can participate in