[nicse4]

I am working on a text-based RPG, and am having a few issues, can you help me?

global maxHP
global HP
global maxMP
global MP
global gold
global loop1
gold = 0
def start():
    print "An evil dragon known as Draco has taken control of the world.\nHe has a big army of minions who do his bidding and his dirty work.\nYou must rise and defeat him and all his minions."
    choice = raw_input("one is the choice")
    if choice == 1:
        dragoncave()
    else:
        dragoncave()
def dragoncave():
    while gold != 100:
        print "YOU NEED 100 GOLD TOO LEAVE!"
        print "You found 100 gold!"
        gold = 100
        loop1 = 1
    print "YOU WON!"

loop1 = 0
while loop1 == 0:
    start()

It says there is an error when going to the dragoncave, and that gold was used before it was defined. What is wrong? I have tried to define gold again, but it didn't work.

[Motoma]

You need to declare gold as being a global:

def dragoncave():
    global gold
    ...

[nicse4]

Oh so define gold in the dragons cave? but what about when i need it in the other parts later in development?
also I did it like this

global gold
#other codes
def dragoncave():
#rest of code

So why doesn't this work?

This post has been edited by nicse4: 17 August 2011 - 08:59 AM

[Motoma]

What you are doing is telling the interpreter that it should look for the variables in higher scopes; this allows you to define gold globally in for some functions and locally for others. If it was done your way, you would never be able to define gold as a local variable inside a function.

It may seem that they are quite similar, and your way is easier to use, but imagine if you declared the variable i in the global scope, then imported some other library: if that library ever used i to iterate over a list or range, you would lose what you were storing there.

[nicse4]

OK, I get it now, thank you so much.

[Wigglesniff]

How much more have you done with the program?

[atraub]

Could you clarify your question?

[Wigglesniff]

I was wondering if (s)he had worked on the program anymore.