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1

I'm writing a Legend of Zelda like game in pygame.

I have this code for loading a map from a text file.

#Load maps
f = open ("map1","r")#This file is a text file containing only: 1
map01 = f.read()

terrains = [{"sprite": dirt}, {"sprite": mountian}, {"sprite": water}]

themap = [[-1 for x in range(150)] for y in range (150)]

for x in range (0,150):
    for y in range (0,150):
        themap[x][y] = terrains[map01]#if I replace map01 here with a number or random.randint(0,2) it works as expected

    for x in range (0, 150):
        for y in range (0, 150):
            screen.blit(themap[x][y]["sprite"], [x * 16, y * 16])

But that gives me:

$ python map.py
Traceback (most recent call last):
  File "map.py", line 17, in <module>
    themap[x][y] = terrains[map01]
TypeError: list indices must be integers, not str

Ok I'm making this a bit clearer I want to make a file called map1 that looks like this

1, 2, 1, 0 etc.

I can make a random screen with random.randint: random.randint

and I can make it a solid texture: with solid

but I can't figure out how to predefine a map.

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closed as off-topic by Byte56♦ Oct 1 '13 at 23:57

  • This question does not appear to be about game development within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.
    
While you are making a game, the question you're asking is not specific to game development. It's a general programming question. Those questions should be asked on stackoverflow.com –  Byte56♦ Sep 30 '13 at 15:43
    
Now that I've figured it out does it still need to be moved. Is there something a Mod can do to move the whole question? –  Cagentdog Oct 1 '13 at 18:03
    
It appears I can't move it. You might want to check if it's possible for you to post questions on stackoverflow.com –  Byte56♦ Oct 1 '13 at 23:59

2 Answers 2

up vote 0 down vote accepted

Ok I managed to fix it myself so I'll go ahead and put what I got.

Instead of loading a text file I made a map_data.py file and put a two dimensional array inside. then I imported the array in my main file:

from map_data import map1

and then I changed this line to:

for x in range (0,150):
    for y in range (0,150):
        themap[x][y] = terrains[map1[x][y]]

                                    /\
                     I had random.randint(0, 2) here before.
share|improve this answer
up vote 4 down vote

The read() function in this line:

map01 = f.read()

doesn't do any format checking to try determine what the text is. It just returns raw bytes as a string. You need to convert it to a number explicitly:

map01 = int(f.read())
share|improve this answer
    
That worked. But I can't make it like 1, 1 ,0, 0, 1 or it gives me an error. I can only use one character any idea how to fix that part? –  Cagentdog Sep 30 '13 at 16:56
    
Byte56's comment is correct, you're asking a Python programming question, not a game question. That's better asked on SO. Be sure to take some time going over the Python docs on reading text from files before you ask. The SO folks will want to see that you've done some research. –  Michael Kristofik Sep 30 '13 at 18:42

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