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Dylan Merritt
Dylan Merritt
15,682 Points

My moves aren't being recognized as variables. I've checked it against the code in the video multiple times but am stuck

import random

CELLS = [(0,0), (0,1), (0,2),
         (1,0), (1,1), (1,2),
         (2,0), (2,1), (2,2)]

def get_locations():
    monster = random.choice(CELLS)
    door = random.choice(CELLS)
    start = random.choice(CELLS)

    if monster == door or door == start or monster == start:
        return get_locations()

    return monster, door, start

def move_player(player, move):
    x,y = player
    if move == 'LEFT':
        y -= 1
    elif move == 'RIGHT':
        y += 1
    elif move == 'UP':
        x += 1
    elif move == 'DOWN':
        x -= 1

    return x,y

def get_moves(player):
    moves = ['LEFT', 'RIGHT', 'UP', 'DOWN']
    if player[1] == 0:
    if player[1] == 2:
    if player[0] == 0:
    if player[0] == 2:

    return moves

print("Welcome to the dungeon!")
monster, door, player = get_locations()

while True:
    moves = get_moves(player)

    print("You are currently in room {}.".format(player))
    print("You can move {}.".format(moves))
    print("Enter QUIT to quit.")

    move = input("> ")
    move = move.upper()

    if move == 'QUIT':

    if move in moves:
        player = move_player(player, move)
        print("***Walls are hard, quit running into them!***")
    if player == door:
        print("You escaped!")
    elif player == monster:
        print("You were too young to die!")

1 Answer

Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

Up is down and Down is up. The math is reversed on your UP and DOWN. Up should subtract 1 to get to lower numbered row. Down should add 1 to get to a higher numbered row:

def move_player(player, move):
    x, y = player
    if move == 'LEFT':
        y -= 1
    elif move == 'RIGHT':
        y += 1
    elif move == 'UP':
        x -= 1  # <-- changed to subtract 1
    elif move == 'DOWN':
        x += 1  # <-- changed to add 1

    return x, y

After this change, it appears to work as intended.