## Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

### Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today. Could you show me how to make a user input grid I am pretty sure it has something to do with for loops, I just don't know how.

```import os
import random
import sys

CELLS = [(0, 0), (1, 0), (2, 0), (3, 0), (4, 0),
(0, 1), (1, 1), (2, 1), (3, 1), (4, 1),
(0, 2), (1, 2), (2, 2), (3, 2), (4, 2),
(0, 3), (1, 3), (2, 3), (3, 3), (4, 3),
(0, 4), (1, 4), (2, 4), (3, 4), (4, 4)] # this is where I need the help

def double_space():
print("")
print("")

def clear_screen():
os.system('cls' if os.name == 'nt' else 'clear')

def get_locations():
return random.sample(CELLS, 3)

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

def get_moves(player):
moves = ["LEFT", "RIGHT", "UP", "DOWN"]
x, y = player
if x == 0:
moves.remove("LEFT")
if x == 4:
moves.remove("RIGHT")
if y == 0:
moves.remove("UP")
if y == 4:
moves.remove("DOWN")
return moves

def draw_map(player):
print(" _"*5)
tile = "|{}"

for cell in CELLS:
x, y = cell
if x < 4:
line_end = ""
if cell == player:
output = tile.format("X")
else:
output = tile.format("_")
else:
line_end = "\n"
if cell == player:
output = tile.format("X|")
else:
output = tile.format("_|")
print(output, end=line_end)

def retry():
retry = True
while retry:
retryInput = input("Play again? [Y/n] ").lower()
if retryInput == "y":
game_loop()
elif retryInput == "n":
sys.exit()
else:
clear_screen()
double_space()
print("  ** invalid input **")
double_space()

def game_loop():
monster, door, player = get_locations()
playing = True

while playing:
clear_screen()
draw_map(player)
valid_moves = get_moves(player)

print("You're currently in room {}".format(player))
print("You can move {}".format(", ".join(valid_moves)))
print("Enter QUIT to quit")

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

if move == 'QUIT':
print("\n ** See you next time! **\n")
break
if move in valid_moves:
player = move_player(player, move)

if player == monster:
double_space()
print(" ** Oh no! The monster got you! Better luck next time! **")
double_space()
playing = False
if player == door:
double_space()
print(" ** You escaped! Congratulations! **")
double_space()
playing = False
else:
if move == "UP" or move == "DOWN" or move == "LEFT" or move == "RIGHT":
double_space()
input(" ** Walls are hard! Don't run into them! **")
double_space()
else:
double_space()
input(" ** Invalid Input **")
double_space()
else:
double_space()
input("press enter to continue ")
retry()

clear_screen()
print("Welcome to the dungeon!")
clear_screen()
game_loop()
```

I really don't understand the question, so I looked over you program. Just from the code it's hard to figure out what the user stories are that you're trying to deliver on. From some of the game's 'screen response coaching' I think it's escaping a monster in a maze. Lots of code there so I ran it in my local IDLE to see what the problem might be. So it runs straight out of the box. Nice! First, you should offer some better instructions to the player. You as the coder know, but let's not keep those gems a secret <wink>. There's a monster in there - running into it you lose :-( , There are walls - the outside perimeter it looks like - and a door which you must find to win. And, while playing, you only know where you are and not where you've been, which might be helpful though you'd probably need to have a tracking array/list and another for loop. Operationally you've done a good job using random to seed the monsters' and the doors' locations. I hope I've addressed at least some of your concerns. Good luck! Hello, do you mean something like this?

```cells = []
for i in range(5):
for j in range(5):
cells.append((i, j))
```

this will generate a list of tuples from (0,0), to (4,4), you could of course replace the 5 in the range calls with a variable depending on a users input say.

can also do this with list comprehensions:

```cells = [ (i, j) for i in range(5) for j in range(5) ]
```

James