Trouble Setting a Variable

[myke]

So I'm having trouble keeping this in line. Granted, I am checking the outdated wiki when double checking my work, but in a previous project this worked.

At the start of my script I have a variable declared as

$ touched_wall = False

And further along I have an option that should activate it, or, if already activated leads to another path.

label walltouch:
if $ touched_wall = true:
jump walltouch2

else:
$ touched_wall = true

And beneath that it goes to the dialogue for that section.

But when I try to set that option in game i get this:

Code: Select all

I'm sorry, but an uncaught exception occurred.

While running game code:
  File "game/script.rpy", line 369, in script
    if $ touched_wall = true:
SyntaxError: invalid syntax (script.rpy, line 369)

-- Full Traceback ------------------------------------------------------------

Full traceback:
  File "game/script.rpy", line 369, in script
    if $ touched_wall = true:
  File "/Users/mike/Downloads/renpy-6.99.8-sdk/renpy/ast.py", line 1648, in execute
    if renpy.python.py_eval(condition):
  File "/Users/mike/Downloads/renpy-6.99.8-sdk/renpy/python.py", line 1605, in py_eval
    code = py_compile(code, 'eval')
  File "/Users/mike/Downloads/renpy-6.99.8-sdk/renpy/python.py", line 512, in py_compile
    raise e
SyntaxError: invalid syntax (script.rpy, line 369)

Darwin-14.5.0-x86_64-i386-64bit
Ren'Py 6.99.10.1227
Maze 0.0

Why is this happening to me? D:

[drKlauz]

$ symbol in front of line means it's python code
You assign value by =, but check by ==
Also python and renpy very indentation sensitive, check your spaces

Your code probably should looks like this

Code: Select all

label start:
  $walltouched=False

label touchwall:
  if walltouched==True:
    jump touchwall2
  "you look around, but find nothing"
  $walltouched=True
  jump touchwall

label touchwall2:
  "you found hidden door"

[myke]

I appreciate the help and that did solve that issue, but now it's saying that i've not declared the variable despite it having been set up top.

[namastaii]

Code: Select all

label start:
    $ touched_wall = False
    



label walltouch:
    if touched_wall:
        jump walltouch2
    else:
        $ touched_wall = True
        
        
####you can use - if touched_wall:
#               - if touched_wall == True:
#               - if touched_wall is True:

***Don't use $ in the IF statement. Don't use one '=' when checking the value of a variable. This is for assigning values ONLY. Use two: == or if you just say 'if touched_wall:' then it is automatically checking to see if the variable is True.

[myke]

I've got the variable listed directly beneath the start label, but starting and getting to the option still gives me the error exception of it not being defined.

Code: Select all

I'm sorry, but an uncaught exception occurred.

While running game code:
  File "game/script.rpy", line 371, in script
    if touched_wall:
  File "game/script.rpy", line 371, in <module>
    if touched_wall:
NameError: name 'touched_wall' is not defined

[namastaii]

Well what does the whole thing look like? And you can try putting the variable under an 'init' instead then.

Code: Select all

init:
    ###$ touched_wall = False ---this best way:
    default touched_wall = False

label start:

    "blah blah"
    jump walltouch

What do you mean by option? How do you have this set up?

[myke]

That's fixed it! Thanks a lot. But by option, I meant menu option. The setup I had was this would have a different result if the same choice was a second time.

[trooper6]

Please note: current best practices is to define your variables so:

Code: Select all

default touched_wall = False

label start:
    "Blah blah"

[namastaii]

Right. I keep forgetting.