RPG

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 one health point.

Commands:
    go [north | south | east | west ]
    get [item]
    map
    save
    quit
""")

def showStatus(health,currentRoom,inventory,rooms):
    # 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"])
    displayDirections(rooms,currentRoom)
    print("---------------------------")

def displayDirections(rooms,currentRoom):
    directions = ''
    if 'north' in rooms[currentRoom]:
        directions = 'North > {}'.format(rooms[currentRoom]['north']) + '; '
    if 'south' in rooms[currentRoom]:
        directions += 'South > {}'.format(rooms[currentRoom]['south']) + '; '
    if 'east' in rooms[currentRoom]:
        directions += 'East > {}'.format(rooms[currentRoom]['east']) + '; '
    if 'west' in rooms[currentRoom]:
        directions += 'West > {}'.format(rooms[currentRoom]['west']) + '; '
    print(directions)

def getDefaults():
    name = None
    health = 5
    currentRoom = "Hall"
    inventory = []
    return name,health,currentRoom,inventory

def getRooms():
# 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" }
        }
    return rooms

def getAction():
    action = ''
    while action == '':
        action = input('>')
    return action

def game(health,currentRoom,inventory,rooms):
    play = True
    result = ""
    while play:
        showStatus(health,currentRoom,inventory,rooms)
        action = getAction()

        action = action.lower().split()
        if action[0] == 'save':
            saveGame(name,health,currentRoom)
            print('Game Saved')

        if action[0] == 'quit':
            result = 'quit'
            play = False

        if action[0] == 'map':
            displayMap(rooms)

        if action[0] == "go":
            health = health - 1
            # Check that they are allowed wherever they want to go
            if action[1] in rooms[currentRoom]:
                # Set the current room to the new room
                currentRoom = rooms[currentRoom][action[1]]
                # 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 action[0] == "get" :
            # If the room contains an item, and the item is the one they want to get
            if "item" in rooms[currentRoom] and action[1] in rooms[currentRoom]["item"]:
                # Add the item to their inventory
                inventory += [action[1]]
                # Display a helpful message
                print(action[1] + " got!")
                # Delete the item from the room
                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 " + action[1] + "!")

        # Player loses if they enter a room with a monster
        if "item" in rooms[currentRoom] and "monster" in rooms[currentRoom]["item"]:
            result = 'monster'
            play = False

        if health == 0:
            result = 'health'
            play = False

        # 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:
            result = 'win'
            play = False

    return result

def displayMap(rooms):
    print(rooms)

def displayResult(result):
    if result == 'monster':
        print("A monster has got you ... GAME OVER!")
    elif result == 'health':
        print("You collapse from exhaustion ... GAME OVER!")
    elif result == 'win':
        print("You escaped the house ... YOU WIN!")
    elif result == 'quit':
        print("Goodbye, thanks for playing")
    else:
        print("Something went awry")

def loadSavedGame():
    response = input('Load Save Game (y/n)? ').strip()
    if response == 'y':
        load = True
    else:
        load = False
    return load

def loadGame():
    try:
        with open('gameData.json','r') as f:
            gameData = json.load(f)
            name = gameData['playername']
            health = gameData['playerhealth']
            currentRoom = gameData['playercurrentroom']
            inventory  = []
    except FileNotFoundError:
        name,health,currentRoom,inventory = getDefaults()
    return name,health,currentRoom,inventory

def saveGame(name,health,currentRoom):
    gameData = {
        'playername':name,
        'playerhealth':health,
        'playercurrentroom':currentRoom
        }
    with open('gameData.json','w') as f:
        json.dump(gameData,f)

rooms = getRooms()
name,health,currentRoom,inventory = getDefaults()
if loadSavedGame():
    name,health,currentRoom,inventory  = loadGame()

if name is None:
    name = input("What is your name, Adventurer? ")
    showInstructions()
result = game(health,currentRoom,inventory,rooms)
displayResult(result)