RPG 103

import json
#=================================================================
def showInstructions():
    # Print a main menu and the commands
    print('''
RPG Game
========

Get to the Garden with a key and a potion.
Avoid the monsters!

You are getting tired; each time you move you lose 1 health point.

Commands:
    go [direction]
    get [item]
''')
#=================================================================
# Set up the game
def resetStatus():
    global name, health, currentRoom, inventory
    name = None
    health = 5
    currentRoom = 'Hall'
    inventory = []
#=================================================================
def showStatus():
    # Print the player's current status
    print('---------------------------')
    print(name + ' is in the ' + currentRoom)
    print("Health : " + str(health))
    # Print the current inventory
    print("Inventory : " + str(inventory))
    # Print an item if there is one
    if "item" in rooms[currentRoom]:
        print('You see a ' + rooms[currentRoom]['item'])
    print("---------------------------")
#=================================================================

# Load data from the file
try:
    print("Retrieving player details")
    with open("gamedata.json", "r") as f:
        gamedata = json.load(f)
        name = gamedata["playername"]
        health = gamedata["playerhealth"]
        currentRoom = gamedata["playercurrentRoom"]
        inventory = gamedata["playerbackpack"]

except FileNotFoundError:
    #print("No player found, creating a new gamedata file")
    resetStatus()

# A dictionary linking a room to other room positions
rooms = {
          'Hall' : { 'south' : 'Kitchen',
                     'east'  : 'Dining Room',
                     'item'  : 'key'
                   },

          'Kitchen' : { 'north' : 'Hall',
                        'item'  : 'monster'
                      },

          'Dining Room' : { 'west'  : 'Hall',
                            'south' : 'Garden',
                            'item'  : 'potion'
                          },

          'Garden' : { 'north' : 'Dining Room' }
        }
# Remove item from each room if item in backpack
for thisRoom in rooms:
    if rooms[thisRoom].get('item') in inventory:
        del rooms[thisRoom]['item']

# Ask the player their name
if name is None:
    name = input("What is your name, Adventurer? ")
    showInstructions()

# Loop forever .. until break
while True:
    gameOver = False
    showStatus()

    # Get the player's next 'move'
    move = ''
    while move == '':
        move = input('>').strip()

    move = move.lower().split()

    if len( move ) >= 2 :
        # If they type 'go' first
        if move[0] == 'go':
            health = health - 1
            goDirection = move[1]

            # Check that they are allowed wherever they want to go
            if goDirection in rooms[currentRoom]:
                # Set the current room to the new room
                currentRoom = rooms[currentRoom][ goDirection ]
            # or, if there is no door (link) to the new room
            else:
                print('You can\'t go that way!')

        # If they type 'get' first
        if move[0] == 'get' :
            # If the room contains an item, and the item is the one they want to get
            #if 'item' in rooms[currentRoom] and move[1] in rooms[currentRoom]['item']:
            itemRequested = move[1]
            #if 'item' in rooms[currentRoom] and rooms[currentRoom]['item'] == itemRequested :
            if rooms[currentRoom].get('item') == itemRequested :
                # Add the item to their inventory
                #inventory += [itemRequested]
                inventory.append( itemRequested )
                # Display a helpful message
                print( itemRequested + ' got!')
                # Delete the item from the roomplayerbackpack
                del rooms[currentRoom]['item']
            # Otherwise, if the item isn't there to get
            else:
                # Tell them they can't get it
                print('Can\'t get ' + itemRequested + '!')
    #-------------------------------------------------
    # Player wins if they get to the garden with a key and a potion
    if currentRoom == 'Garden' and 'key' in inventory and 'potion' in inventory:
        print('You escaped the house... YOU WIN!')
        print('*********************************')
        gameOver = True
        resetStatus()

    elif rooms[currentRoom].get('item') == 'monster':
    # Player loses if they enter a room with a monster
        print('A monster has got you... GAME OVER!')
        gameOver = True
        resetStatus()

    elif health <= 0:
        print('You collapse from exhaustion... GAME OVER!')
        gameOver = True
        resetStatus()

    # Save game data to the file
    gamedata = {
      "playername"       : name,
      "playerhealth"     : health,
      "playercurrentRoom": currentRoom,
      "playerbackpack"   : inventory
    }
    with open("gamedata.json", "w") as f:
        json.dump( gamedata, f )

    if gameOver == True:
        break