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Interchange Javascript and Twine 2.0.3 Sugarcube 'web storage' variables

facehead1992facehead1992
in Help! with 2.0
Since both Javascript and Sugarcube's <<remember>> variables are supposed to use the web storage, I figured I would be able to somehow retrieve a Twine variable $var (set using the macro <<remember $var = 2>>) using the javascript code...
localStorage.getItem('var')
or...
localStorage.getItem('$var')
...neither of which are working for me. Is there another method made available for such an exchange?

Ultimately, I wish to be able to feed a Twine story data from a database via PHP script and JavaScript and then retrieve player decisions in the reverse direction, storing them in a database. Though I have been successful with plain html documents in doing this, I have yet to figure out how to using a Twine story. As of yet, my only options for controlling story flow have been to generate conditional statements based off of variables set using the Sugarcube macros.

1. How can I exchange the JavaScript and Twine web storage variables?
2. Is it possible to have JavaScript contained in a <<script>> tag to provide control flow systems without directly modifying the html content of document elements? Or would I need to simply rely on the macro system?

Comments

  • facehead1992facehead1992
    After investigating further, I believe the solution I'm looking for will mean simply writing my own macros using JavaScript which shouldn't be too complicated.
  • TheMadExileTheMadExile
    You may find the Macro API documentation and the standard macro library (macroslib.js) useful.

    As to why your first attempt failed.  SugarCube's storage for each story is prefixed (first by a slugified version of the story's title and secondly by subsystem) and compressed to save space.  You're probably better off doing your initial DB load simply as a section of the Story JavaScript, or as a macro if you don't plan on doing all of your loading at startup, and DB storing as a macro.

    Also, the following undocumented static Wikifier methods may help: (they operate on the currently active state)

    // Returns the value of the given story $variable
    Wikifier.getValue(storyVariable);

    // Sets the given story $variable to the given value
    Wikifier.setValue(storyVariable, value);

    // Examples:
    Wikifier.getValue("$foo");
    Wikifier.setValue("$foo", "bar");
    Wikifier.setValue("$foo", true);
    Wikifier.setValue("$foo", 42);
    Wikifier.setValue("$foo", someLocalVariable);
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