Microtonic Scripts SDK

This repository contains all the necessary documentation and resources to create GUI scripts for Microtonic. The scripting engine in Microtonic uses a proprietary JavaScript engine based on ECMAScript 3. The engine only works when the Microtonic window is open. There is currently no way to create real-time scripts that process MIDI or audio. Apart from these restrictions, a script can do pretty much anything with the data in Microtonic, and the user interface can look and behave in any way you can imagine.

Disclaimer: many proprietary technologies, formats, and languages are involved in creating user interfaces for Sonic Charge plugins. These technologies have evolved organically over time and will continue to do so in the future. There is functional overlap and inconsistencies, and there is no guarantee that a script that works in the current version of Microtonic will work in the next (even though good compatibility is something that we strive for at Sonic Charge).

The documentation in this repository was written for Microtonic version 3.3.4 (build 1048).

Technology Overview

Here is a brief list of the technologies used in Microtonic GUIs:

Cushy: the layout engine and file format for describing layouts, based on Numbstrict with Makaron support.
ImpD: a simple imperative computer language disguised as a data format, or the other way around.
IVG (Imperative Vector Graphics): a language and file-format for 2D vector graphics, based on ImpD.
Makaron: a macro expansion syntax, used to make .cushy files easier to write.
Numbstrict: an object notation format similar to (but not compatible with) JSON.
NuXJScript: our JavaScript engine, fully ECMAScript 3 compliant with features from ECMAScript 5.
PikaScript: our legacy script language used by older Microtonic scripts and offline tools.

Repository Structure

CushyLint:
1. Command-line syntax checker for .cushy files.
2. Contains cushy.schema, the official reference for the .cushy format.
docs:
ivgfiddle: a browser "playground" for experimenting with IVG (compiled with emscripten).
IVGFontConverter: a converter from .ttf and .otf to .ivgfont (requires node.js).
JSConsole.mtscript: an interactive Javascript console for Microtonic.
legacy: contains documentation for the legacy scripting engine (based on PikaScript).
tmLanguages: syntax highlighting support for Sonic Charge formats and languages.

Cushy

Cushy is the GUI / layout engine used in all Sonic Charge products. .cushy files define the layout of views and configure how the user can interact with the plugin through GUI variables and GUI actions. The format is based on Numbstrict, the object notation format used in all Sonic Charge products. Numbstrict is similar to JSON with the following differences:

C-style comments are supported.
You use curly brackets ({ and }) for both structures and arrays.
To differentiate empty structures from empty arrays, you may use this syntax: { : }.
You may express integer values as hexadecimal numbers in this format: 0xABCD.
Real values include infinity (inf) and the NaN value (nan).
Free-form text values without quotes are allowed in many cases.
You can use \U inside quoted strings to escape a 32-bit Unicode character, e.g., \U0001F9FF.

Here is an "outline" of the Cushy file structure:

bounds: { <left>, <top>, <width>, <height> }
autoexecs: {
    ... actions to run on open, close, or regularly on a timer
}
transitions: {
    ... visual transition effects applied when this Cushy is opened or closed
}
translations: {
    ... special string translations used for this Cushy.
}
views: {
    ... view definitions
}

In Cushy, it's often possible to write mathematical expressions where numerical constants are expected. In these places, $ may be used to insert the default value for the field. E.g., updateRate: $*2 would set updateRate to twice the default. For rectangles such as view bounds you can also use the following variables: t, l, w, h, r, b for top, left, width, height, right and bottom of the default rectangle. E.g. bounds: { l+10,t+10,h-20,w-20 }. The default rectangle for a view bound is the full bounding box of the parent view.

The Numbstrict format can be challenging to write correctly, especially when containing deeply nested hierarchical views and actions. Therefore we created CushyLint, a command-line tool to check the syntax of a .cushy file against the official "schema" specification. Simple run CushyLint (Mac) or CushyLint.bat (Windows) from a command-line prompt with the single argument specifying a single .cushy file path to check or a directory if you want to check multiple files. Directories must end with a slash (/ or \).

The files are checked against the official cushy.schema file in the CushyLint directory, plus any other .schema files existing in the directory next to the .cushy file that you are checking. The cushy.schema file is designed to be readable and contains lots of comments, thus also serving as a kind of official reference documentation on .cushy files, available view types, and built-in actions.

Furthermore, you can use macros when writing .cushy files for easier development and maintenance. See Makaron Documentation for documentation on the macro expansion language we use. Macros you write are expanded when .cushy files are loaded inside the plugin, before they are parsed.

See cushy.schema and Microtonic JS Reference for more information on how to write Cushy.

IVGFiddle

Included in this distribution is a standalone .html application called IVGFiddle. You can run it simply by opening the ivgfiddle.html file in your favorite browser (Google Chrome). It will let you experiment with IVG code and see the graphical output in real-time.

See IVG Documentation for more information on IVG.

IVGFontConverter

Cushy (and IVG) uses a proprietary file format for fonts: .ivgfont. You can use IVGFontConverter to convert a TrueType or OpenType font to this format. To run, you must install node.js. Then use it like this:

node IVGFontConverter.node.js <input> [ ?|-|<feature>[,<feature>,...] ] [ <charset>[,<charset>,...] ] > <output>

  ?          List all GSUB features
  -          No extra GSUB feature
  <feature>  Enable GSUB feature by [<script>.[<language>.]]<feature>
  <charset>  Convert Unicode characters [<hex>[-<hex>]] (default is ISO-8859-1)

Example: node IVGFontConverter.node.js font.otf >font.ivgfont
Example: node IVGFontConverter.node.js font.otf ss01 >font.ivgfont
         node IVGFontConverter.node.js font.ttf latn.ROM.locl,latn.ss01 >font.ivgfont
         node IVGFontConverter.node.js font.ttf - 0020-007f,a0-cf >font.ivgfont

JSConsole

A console (JSConsole) is available for developing scripts. It runs inside Microtonic and allows you to enter JavaScript code interactively, see traces, reload all resources and see script performance (as frames per second).

Install it by copying JSConsole.mtscript to the Microtonic Scripts folder. (You can easily find this folder by choosing Open Scripts Folder from the "puzzle menu" in Microtonic.)

Syntax Highlighting

TextMate Language Grammars are available for most of the custom languages and formats used by Sonic Charge. You find them in the tmLanguages folder. We have tested them in Sublime Text and Visual Studio Code. Installation instructions:

Sublime Text

Use the menu Preferences > Browse Packages... to open Packages and copy the soniccharge folder into this folder.
Visual Studio Code

Copy the soniccharge folder into the .vscode/extensions/ directory under your "home folder".
- Windows: %USERPROFILE%\.vscode\extensions
- Mac/Linux: $HOME/.vscode/extensions

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