Portfolio project: Supermarket - the RPG

Data Science
1

Hi,

Sorry - I’m green as grass, and have fallen at the first hurdle. I’m on the portfolio project stage of the Computer Science pathway, and have decided to make a text-based RPG set in a supermarket.

Essentially, the functionality I’m trying to create is to give the player a choice of startup ‘pathways’ (trying not to use the word ‘classes’ in a gamer sense!) that gives them different beginning characteristics.

Based on their input choice, this index value is used to read from a nested list of attributes, and then a createPlayer method is called with these charactersitics.

This is what I have so far:

# Supermarket: the RPG


# start-up message
start_up_message = "###########################################\n\nWelcome to Supermarket: the RPG \n \n Choose a player class\n1: Mum with kids\n2: Sharp-elbowed Granny"

player_choice_of_class = 0

# Player class, influenced by which type of shopper they initially choose

startup_stats = [["Mum with kids", 0.8, 120, 120, 70, 70, 100], ["Sharp-elbowed Granny", 1.1, 70, 70, 100, 100, 80]]

class Player:
  def __init__(self, player_class, time_factor, stamina, max_stamina, patience, max_patience, money):
    self.player_class = player_class
    self.time_factor = time_factor
    self.stamina = stamina
    self.max_stamina = max_stamina
    self.patience = patience
    self.max_patience = max_patience
    self.money = money

  def __repr__(self, player_class, time_factor, stamina, max_stamina, patience, max_patience, money):
    pass

def create_player(player_choice_of_class):
  index_choice = int(player_choice_of_class) - 1
  init_player_class = startup_stats[index_choice][0]
  init_time_factor = startup_stats[index_choice][1]
  init_stamina = startup_stats[index_choice][2]
  init_max_stamina = startup_stats[index_choice][3]
  init_patience = startup_stats[index_choice][4]
  init_max_patience = startup_stats[index_choice][5]
  init_money = startup_stats[index_choice][6]
  # Create player as "new_player" with start-up data as drawn from startup stats list
  new_player = Player(init_player_class, init_time_factor, init_stamina, init_max_stamina, init_patience, init_max_patience, init_money)
  return new_player

  

  # block of code to call that shows character's current stats as a running item
def display_stats():
    stats = "Time Factor: " + str(self.time_factor) + "\n" + "Stamina: " + str(self.stamina) + "/" + str(self.max_stamina) + "\n" + "Patience: " + str(self.patience) + "/" + str(self.max_patience) + "\n" + "Money: £" + str(self.money)
    return stats
   
# ################################# GAME LOOP ########################
# Ask player which player_class they want to play with
player_choice_of_class = input(start_up_message)
#print(player_choice_of_class)
create_player(player_choice_of_class)
#test_player = Player("Mum with kids", 0.8, 120, 120, 70, 70, 100)

print(display_stats())

This throws an error - fundamentally, I’m struggling to refer to the ‘new_player’ object I’ve just created in order to display their stats (or do anything else with them going forwards.

Any help gratefully received!

2

what error does it throw? need this in order to work out the issue

3 
$ python 3 script.py
python: can't open file '3': [Errno 2] No such file or directory
$ python3 script.py
###########################################

Welcome to Supermarket: the RPG 
 
 Choose a player class
1: Mum with kids
2: Sharp-elbowed Granny2
Traceback (most recent call last):
  File "script.py", line 54, in <module>
    print(display_stats())
  File "script.py", line 44, in display_stats
    stats = "Time Factor: " + str(self.time_factor) + "\n" + "Stamina: " + str(self.stamina) + "/" + str(self.max_stamina) + "\n" + "Patience: " + str(self.patience) + "/" + str(self.max_patience) + "\n" + "Money: £" + str(self.money)
NameError: name 'self' is not defined
$ ^C
$

I can’t get it to work whether I refer to it as ‘self’ or as ‘new_player’

4 
  # block of code to call that shows character's current stats as a running item
def display_stats(player):
    stats = "Time Factor: " + str(player.time_factor) + "\n" + "Stamina: " + str(player.stamina) + "/" + str(player.max_stamina) + "\n" + "Patience: " + str(player.patience) + "/" + str(player.max_patience) + "\n" + "Money: £" + str(player.money)
    return stats



# ################################# GAME LOOP ########################
# Ask player which player_class they want to play with
player_choice_of_class = input(start_up_message)
#print(player_choice_of_class)
player = create_player(player_choice_of_class)
#test_player = Player("Mum with kids", 0.8, 120, 120, 70, 70, 100)

print(display_stats(player))

you need to make sure you are referencing your created classes properly. you created a new player class but didnt assign it to a variable, so you couldnt actually access that class. i have assigned it to a ‘player’ variable. so now you can reference it in the altered “display_stats” funciton.

hope this helps :slight_smile:

1 Like
5

Perfect. Makes complete sense.

Thanks so much!