FLAG_ARE_DOOR_open = BIT0
FLAG_ARE_DOOR_locked = BIT1
FLAG_ARE_DOOR_trap_resets = BIT2
FLAG_ARE_DOOR_trap_detectable = BIT3
FLAG_ARE_DOOR_broken = BIT4
FLAG_ARE_DOOR_cannot_close = BIT5
FLAG_ARE_DOOR_linked = BIT6
FLAG_ARE_DOOR_hidden = BIT7
FLAG_ARE_DOOR_found = BIT8
FLAG_ARE_DOOR_not_blocking_line_of_sight = BIT9
FLAG_ARE_DOOR_remove_key_bg2 = BIT10
FLAG_ARE_DOOR_ignore_obstacles_when_closing = BIT11
