Locking Doors

In order to stop the player from being able to get into parts of your maps until they satisfy parts of the puzzles, it may be useful to lock rooms until a puzzle has been solved. For this functionality we need to:

create a locked flag attribute in Room class
create a lock and unlock method to control the lock
in the move method, add a condition to control if movement to that room is allowed.
lock the locked rooms
create a way to unlock the locked room

Create a locked flag

in room.py

class Room():

number_of_rooms = 0

def __init__(self, room_name):

self.name = room_name

self.description = None

self.linked_rooms = {}

self.character = None

self.item = None

# add attribute here

self.locked = False #by default the room is created unlocked

Room.number_of_rooms = Room.number_of_rooms + 1

2. Create a lock and unlock method

in room.py

def get_character(self):

return self.character

def get_item(self):

return self.item

def set_item(self, item_name):

self.item = item_name

# add the method to lock the room

def lock(self):

self.locked = True

# add the method to unlock the room

def unlock(self):

self.locked = False

def describe(self):

print( self.description )

3. Edit the move method

in room.py

def move(self, direction):

if direction in self.linked_rooms:

# add the if condition that only allow movement if the linked_room.locked is False

if not self.linked_rooms[direction].locked:

return self.linked_rooms[direction]

else:

print("The door is locked")

return self

else:

print("You can't go that way")

return self

4. Lock the locked rooms

in main.py

kitchen.link_room(dining_hall, "south")

dining_hall.link_room(kitchen, "north")

dining_hall.link_room(ballroom, "west")

ballroom.link_room(dining_hall, "east")

# under the linking of the rooms, lock the rooms that should be locked

ballroom.lock()

5. Unlock with key

in main.py

cheese = Item("cheese")

cheese.set_description("A large and smelly block of cheese")

ballroom.set_item(cheese)

book = Item("book")

book.set_description("A really good book entitled 'Knitting for dummies'")

dining_hall.set_item(book)

# place a key in kitchen to pickup and place in backpack

key = Item("key")

key.set_description("A tarnished skeleton key")

kitchen.set_item(key)

current_room = kitchen

backpack = []

dead = False

while dead == False:

# add a checking backpack section to game loop

if key in backpack:

ballroom.unlock()

print("\n")

current_room.get_details()

inhabitant = current_room.get_character()

Unlock by defeating character

in main.py

current_room = kitchen

backpack = []

dead = False

while dead == False:

# add a character check section to game loop

if dining_hall.character == None:

ballroom.unlock()

print("\n")

current_room.get_details()

inhabitant = current_room.get_character()