87 lines
3.7 KiB
Markdown
87 lines
3.7 KiB
Markdown
# Menu System
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ENiGMA½'s menu system is highly flexible and moddable. The possibilities are almost endless!
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This document and others will refer to `menu.hjson`. This should be seen as an alias to `yourboardname.hjson` (or whatever you reference in `config.hjson` using the `menuFile` property — see below). By modifying your `menu.hjson` you will be able to create a custom experience unique to your board.
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The default `menu.hjson` file lives within the `mods` directory. It is **highly recommended** to specify another file by setting the `menuFile` property in your `config.hjson` file:
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```hjson
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general: {
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/* Can also specify a full path */
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menuFile: yourboardname.hjson
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}
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```
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You can start by copying the default `mods/menu.hjson` to `yourboardname.hjson`.
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## The Basics
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Like all configuration within ENiGMA½, menu configuration is done in [HJSON](https://hjson.org/) format.
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Entries in `menu.hjson` are objects defining a menu. A menu in this sense is something the user can see or visit. Examples include but are not limited to:
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* Classical Main, Messages, and File menus
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* Art file display
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* Module driven menus such as door launchers
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Each entry in `menu.hjson` defines an object that represents a menu. These objects live within the `menus` parent object. Each object's *key* is a menu name you can reference within other menus in the system.
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## Example
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Let's look a couple basic menu entries:
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```hjson
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telnetConnected: {
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art: CONNECT
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next: matrix
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options: { nextTimeout: 1500 }
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}
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```
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The above entry `telnetConnected` is set as the Telnet server's first menu entry (set by `firstMenu` in the Telnet server's config).
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An art pattern of `CONNECT` is set telling the system to look for `CONNECT<n>.*` where `<n>` represents a optional integer in art files to cause randomness, e.g. `CONNECT1.ANS`, `CONNECT2.ANS`, and so on. If desired, you can also be explicit by supplying a full filename with an extention such as `CONNECT.ANS`.
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The entry `next` sets up the next menu, by name, in the stack (`matrix`) that we'll go to after `telnetConnected`.
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Finally, an `options` object may contain various common options for menus. In this case, `nextTimeout` tells the system to proceed to the `next` entry automatically after 1500ms.
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Now let's look at `matrix`, the `next` entry from `telnetConnected`:
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```hjson
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matrix: {
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art: matrix
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desc: Login Matrix
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form: {
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0: {
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VM: {
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mci: {
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VM1: {
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submit: true
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focus: true
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items: [ "login", "apply", "log off" ]
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argName: matrixSubmit
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}
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}
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submit: {
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*: [
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{
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value: { matrixSubmit: 0 }
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action: @menu:login
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}
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{
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value: { matrixSubmit: 1 },
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action: @menu:newUserApplication
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}
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{
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value: { matrixSubmit: 2 },
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action: @menu:logoff
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}
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]
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}
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}
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}
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}
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}
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```
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In the above entry, you'll notice `form`. This defines a form(s) object. In this case, a single form by ID of `0`. The system is then told to use a block only when the resulting art provides a `VM` (*VerticalMenuView*) MCI entry. `VM1` is then setup to `submit` and start focused via `focus: true` as well as have some menu entries ("login", "apply", ...) defined. We provide an `argName` for this action as `matrixSubmit`.
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The `submit` object tells the system to attempt to apply provided match entries from any view ID (`*`). Upon submit, the first match will be executed. For example, if the user selects "login", the first entry with a value of `{ matrixSubmit: 0 }` will match causing `action` of `@menu:login` to be executed (go to `login` menu).
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