Jump to variable determined label? (solved)

[noeinan]

I was wondering if I could jump to a label, where the name of the label draws on a variable? Something like this:

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jump (current_week + "_evt")

Where current_week is a variable. So, if current_week = "Art" then it will jump to label Art_evt

[xela]

I was wondering if I could jump to a label, where the name of the label draws on a variable? Something like this:

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jump (current_week + "_evt")

Where current_week is a variable. So, if current_week = "Art" then it will jump to label Art_evt

There is a number of ways, I usually use:

$ renpy.jump("".join([current_week, "_evt"]))

basically the same thing as:

$ renpy.jump(current_week + "_evt")

and maybe:

jump expression current_week + "_evt"

But I have never used the last one.

[Ghuraok]

Hi! I'm just throwing it here, I don't know if it's still relevant but this script helped me a lot to work on my inventory system, the only issue I had is that I didn't know how to use it inside screens.
Recently I realised I could just type directly the "".join([thevariable]) inside the Jump arguments. So simply:

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Jump("".join([thevariable])

I don't know if it will help much people, but I know I had been searching for the solution for a while now, so hopefully people like me could find it in this thread.

[strayerror]

First, all of the options presented by xela will work for you. I'm just going to expand a little on the expression keyword, which is the way to do what you're asking without leaving renpy and jumping into python. The expression keyword causes the remainder of the line to be evaluated and the result used, rather than taking it literally. Here's an example:

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label start:
    $ foo = 'bar'
    jump foo
    return

label foo:
    "foo" "this is where we end up when foo is used literally ..."
    jump expression foo
    return

label bar:
    "bar" "... but using expression with foo, means it's evaluated to its
    value (bar) and now we're here!"
    return

Hope that helps!

[Ghuraok]

First, all of the options presented by xela will work for you. I'm just going to expand a little on the expression keyword, which is the way to do what you're asking without leaving renpy and jumping into python. The expression keyword causes the remainder of the line to be evaluated and the result used, rather than taking it literally. Here's an example:

Code: Select all

label start:
    $ foo = 'bar'
    jump foo
    return

label foo:
    "foo" "this is where we end up when foo is used literally ..."
    jump expression foo
    return

label bar:
    "bar" "... but using expression with foo, means it's evaluated to its
    value (bar) and now we're here!"
    return

Hope that helps!

Oh ! That's actually brilliant, it's more elegant than the "".join() in my opinion ! I don't seem to find a way to make it work in screens though.

[philat]

...or you could just do Jump(thevariable). The only reason the above post references .join() is because they're combining the variable with a static text suffix ("_evt").

[Ghuraok]

...or you could just do Jump(thevariable). The only reason the above post references .join() is because they're combining the variable with a static text suffix ("_evt").

I swear, why have I never considered writing (item.effect) instead of ("[item.effect]")
Well at the very least, it's great that I don't have to write that everywhere now.
I'm an idiot for not thinking of getting rid of the brackets and quotemarks altogether. That's what happens when you learn from scattered examples and not theory.
Thank you for your wisdom philat (which I assume was basic knowledge to you) and sorry for the nonsense.

[HammeredEnt]

Hi team,

I'm trying to do a very similar thing and it's just not coming together for me.

My code is as follows:

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label mjbusy:
$ random = renpy.random.randint(0, 13)
$ renpy.jump("".join(["mjbusy", random]))

and I've got a bunch of labels below under mjbusy0, mjbusy01, mjbusy02... mjbusy13. So I'm trying to simplify if from having 14 different 'if' statements but this code just comes back with the following error.

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I'm sorry, but an uncaught exception occurred.

While running game code:
  File "game/characters/mj.rpy", line 56, in script
    $ renpy.jump("mjbusy" + random)
  File "game/characters/mj.rpy", line 56, in <module>
    $ renpy.jump("mjbusy" + random)
TypeError: sequence item 1: expected string or Unicode, int found

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

Full traceback:
  File "game/characters/mj.rpy", line 56, in script
    $ renpy.jump("mjbusy" + random)
  File "C:\Users\Scott\Downloads\Cats\Omnaverse\renpy-7.0.0-sdk\renpy\ast.py", line 912, in execute
    renpy.python.py_exec_bytecode(self.code.bytecode, self.hide, store=self.store)
  File "C:\Users\Scott\Downloads\Cats\Omnaverse\renpy-7.0.0-sdk\renpy\python.py", line 2004, in py_exec_bytecode
    exec bytecode in globals, locals
  File "game/characters/mj.rpy", line 56, in <module>
    $ renpy.jump("mjbusy" + random)
TypeError: sequence item 1: expected string or Unicode, int found

Windows-8-6.2.9200
Ren'Py 7.3.2.320
Wed Jul 31 21:57:04 2019

It works fine if I have the excessive amount of 'if' statements in there, but I just don't seem to be getting the variable suffix in the jump link to work properly.

Any idea of what I'm doing wrong here?

[Alex]

Try to convert the value of 'random' to a string, like

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$ random = str(renpy.random.randint(0, 13))

to properly join it with prefix.

[xavimat]

You can add zfill to Alex's answer to add zeros to the left (in your post your labels have zeros):

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$ rand = str(renpy.random.randint(0, 13)).zfill(2)

Also, IMHO using"join" it's too much to join two simple strings. I'd use +

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jump expression "bla" + rand

[drKlauz]

Might as well use format:

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$rnd_val=renpy.random.randint(0,13)
...
jump expression 'event_{:0>2}'.format(rnd_val)

https://docs.python.org/2/library/strin ... ing-syntax
https://pyformat.info