Add and remove the FrobInert metaproperty based on the door state of this object. If the door is breakable, then the metaproperty is permanently removed when the door is Slain. A wooden door, for example, is still solid even when slain, but a glass door isn’t.
|Messages||DoorOpening, DoorClose, Slain|
|Parameters||breakable (boolean)||Once the door is slain, it will be treated as always open. The default is to ignore Slain.|