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Difference between revisions of "Mod:Use Guide"

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=Use=
 
=Use=
 
'''Roll20 Mods''' (API Scripts''') are a collection of scripts that can expand the [[Macro Guide|chat commands]], tools, automation & features both [[GM|GMs]] and [[players]] have access to inside a game.
 
'''Roll20 Mods''' (API Scripts''') are a collection of scripts that can expand the [[Macro Guide|chat commands]], tools, automation & features both [[GM|GMs]] and [[players]] have access to inside a game.
 +
 +
  
 
Roll20 Mods are not accessible outside Roll20 games, nor are there any outward pointing endpoint to hook into. They are limited to work within each individual Campaign they are installed in, and are inactive if there are no people inside the game. Read more on [[API:Sandbox Model]]
 
Roll20 Mods are not accessible outside Roll20 games, nor are there any outward pointing endpoint to hook into. They are limited to work within each individual Campaign they are installed in, and are inactive if there are no people inside the game. Read more on [[API:Sandbox Model]]
  
'''[[API:Script Index]]''' is a curated lists of the available APIs to install, and gives a short description for each.
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'''[[Mod:Script Index]]''' is a curated lists of the available APIs to install, and gives a short description for each.
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 +
See More:
 +
* '''[https://pages.roll20.net/mods pages.roll20.net/mods]'''
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* [[Mod Update 2024]] adds lots of improvements.
 
==Name Change==
 
==Name Change==
  
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The functionality is not changing for the scripts, only the name.|[https://app.roll20.net/forum/post/10967129/api-name-change-to-mod “API” Name Change to “Mod”], July 11th, 2022}}
 
The functionality is not changing for the scripts, only the name.|[https://app.roll20.net/forum/post/10967129/api-name-change-to-mod “API” Name Change to “Mod”], July 11th, 2022}}
 
__TOC__
 
__TOC__
==Install API==
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==Install Mod==
{{:API:Install Menu}}
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{{:Mod:Install Menu}}
  
 
==The Script Editor==
 
==The Script Editor==
 
[[File:Game-Management-API-scripts.png|thumbnail|left|350px|Access the editor]]
 
[[File:Game-Management-API-scripts.png|thumbnail|left|350px|Access the editor]]
 
<br><br><br>
 
<br><br><br>
To edit your game scripts (as a {{Pro}} user) , click on the '''API Scripts'''-option on the [[Game Details]] page for your game (the same place where options such as the "Chat Log" and "Copy/Extend Game" are located).
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To edit your game scripts (as a {{Pro}} user) , click on the '''Mod Scripts'''-option on the [[Game Details]] page for your game (the same place where options such as the "Chat Log" and "Copy/Extend Game" are located).
 
<br clear=all>
 
<br clear=all>
 
[[File:API-script-library.png|right|thumbnail|500px|The API Script Library, displaying an empty API Console at the bottom.]]
 
[[File:API-script-library.png|right|thumbnail|500px|The API Script Library, displaying an empty API Console at the bottom.]]
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{{:API Console}}
 
{{:API Console}}
  
==Popular APIs==
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==Popular Mods==
 
{{apibox}}
 
{{apibox}}
 
* [[TokenMod]]
 
* [[TokenMod]]
 
* [[ScriptCards]]
 
* [[ScriptCards]]
 
* [[GroupInit]]
 
* [[GroupInit]]
* See All: '''[[API:Script Index]]'''
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* [[ChatSetAttr]]
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* See All: '''[[Mod:Script Index]]'''
  
 
=Creation=
 
=Creation=
 
{{main|API:Development}}
 
{{main|API:Development}}
 
==Simple API Example==
 
==Simple API Example==
Simple API with embedded explanation on what is going on, by [[Aaron|The Aaron]]
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Simple script with embedded explanation on what is going on, by [[Aaron|The Aaron]]
 
<pre data-language="javascript">
 
<pre data-language="javascript">
 
// Register a function for the 'ready' event.  When it occurs, which happens only once
 
// Register a function for the 'ready' event.  When it occurs, which happens only once

Latest revision as of 13:04, 3 May 2024

Attention: This page is community-maintained. For the official Roll20 version of this article, see the Help Center for assistance: Here .

[edit] Use

Roll20 Mods (API Scripts) are a collection of scripts that can expand the chat commands, tools, automation & features both GMs and players have access to inside a game.


Roll20 Mods are not accessible outside Roll20 games, nor are there any outward pointing endpoint to hook into. They are limited to work within each individual Campaign they are installed in, and are inactive if there are no people inside the game. Read more on API:Sandbox Model

Mod:Script Index is a curated lists of the available APIs to install, and gives a short description for each.

See More:

[edit] Name Change

After long-time planning and research, Roll20 is changing the name for APIs. Roll20 is renaming our "APIs" to "Mods" for a few reasons: 1) Calling the scripts APIs is not technically accurate 2) Mods is a better descriptor of how the scripts are used in games 3) Players are more familiar with the term Mods Ultimately, we’re hoping this change will attract folks who found “APIs” intimidating even though they act as Mods. Basically, it’s like modding Skyrim but on Roll20. We’re gradually making the change since API is used in a lot of places, and it’s not something we will strictly enforce. Do you have videos, podcasts, or blogs about APIs? Rad! You don’t have to go back and change any wording to Mods unless that’s something you want to do. The functionality is not changing for the scripts, only the name.
   “API” Name Change to “Mod”, July 11th, 2022

Contents

[edit] Install Mod

Game Settings Menu Options.jpg

To add an Mod to your game, you need to select the "Mod Scripts" option in the Settings-menu found on a campaign's main page. Only a Campaign's Creator and GMs have access to this page.

You can either:

  • select Mods from the drop-down menu to install
  • or manually install a script. Click on the "New Script"-tab, give the script a name, paste the code into the editor, then press Save.

The Mod:Script Index gives a great overview of most available Mods by category, and Mod:Short Scripts include some smaller ones that aren't in the install menu but can be nice to have.

How to Install an API (Nick Olivo)


[edit] The Script Editor

Access the editor




To edit your game scripts (as a
Pro
info user) , click on the Mod Scripts-option on the Game Details page for your game (the same place where options such as the "Chat Log" and "Copy/Extend Game" are located).


The API Script Library, displaying an empty API Console at the bottom.

You will be presented with a page with several features:

  • A list of tabs along the top. Your game can have multiple scripts for ease of organization. Note that all scripts will still run in the same context, meaning that you shouldn't have multiple scripts trying to overwrite the same values at the same time or you could get unintended results.
  • A script code editor. You can use this editor, or edit your scripts in an external editor of choice and then paste them in here.
  • Along the bottom is an "API Console" (see below).


Whenever you click the "Save Scripts" button, the sandbox for your game will be restarted (losing any in-memory data which hasn't been persisted in the state object or in Roll20 objects) and use the new script modifications you just made. This also applies if you add a new script, delete a script, or toggle a script to enable/disable it.

[edit] The API Console

The API Console is your "window" into your scripts. Since API Scripts run in a sandbox, you don't have direct access to them while they are running to view information on the script's results or errors. The API Console brings this information out of the sandbox so you can view it while you are editing your scripts.

All log() commands will show here, as well as any errors that are encountered during the execution of your scripts. For more information, see API:Debugging.

API Issues:

If the APIs in your game doesn't seem to work, press on the Restart API Sandbox, and it fixes the issue usually.


[edit] Popular Mods

[edit] Creation

Main Page: API:Development

[edit] Simple API Example

Simple script with embedded explanation on what is going on, by The Aaron

// Register a function for the 'ready' event.  When it occurs, which happens only once
//   this function will get called.  This avoids getting events resulting from the
//   loading of all the game state into the API
on('ready',()=>{

  // Declare a function called myFunc.  This is using the "Fat Arrow" function syntax
  //   and the const declaration from Javascript ES6
  const myFunc = ()=>{
    sendChat('myFunc','myFunc was called!');
  };

  // Register a function for the 'chat:message' event.  This event occurs for all
  //   chat messages, so it's important to filter down to just the ones you care about
  on('chat:message',msg=>{
    //  First check the type is an API message.  API messages are not show shown in chat
    //    and begin with a ! in the first character of the message.
    //
    //  Next, make sure this is our API message.  The regular expression checks that the 
    //    command starts with "!call-my-func" and either ends or has a space, all case 
    //    insensitive.
    if('api'===msg.type && /^!call-my-func(\b\s|$)/i.test(msg.content)){
      myFunc();
    }
  });
});

[edit] Related Pages

External Tools for Roll20: