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Mod Creation/Migrating from Scripts and Extensions: Difference between revisions

From Melvor Idle
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(Migrating your script or extension to the new mod format? Use these guidelines for a frustration-free experience.)
 
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== Metadata ==
== Metadata ==
Whether the mod being migrated was a userscript or extension, the majority of metadata that was previously defined in the respective locations (userscript comment block or extension <code>manifest.json</code> file) will instead be entered in the mod.io profile page for the mod. This includes the name, author (the uploading mod.io account), description, tags, and versioning.
Whether the mod being migrated was a userscript or extension, the majority of metadata that was previously defined in the respective locations (userscript comment block or extension <code>manifest.json</code> file) will instead be entered in the mod.io profile page for the mod. This includes the name, author (the uploading mod.io account), description, tags, and versioning.


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=== Userscript ===
=== Userscript ===
Userscripts should define a single <code>"load"</code> property within the manifest, with a string value pointing to the script's location relative to the <code>manifest.json</code> file. For example, given the following folder structure:
Userscripts should define a single <code>"load"</code> property within the manifest, with a string value pointing to the script's location relative to the <code>manifest.json</code> file. For example, given the following folder structure:


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The <code>manifest.json</code> should simply be:
The <code>manifest.json</code> should simply be:
  <nowiki>{
  <nowiki>{
   "load": "script.js"
   "load": "script.js"
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=== Extension ===
=== Extension ===
Extensions that previously defined icons in the manifest should now define a single value for the <code>"icon"</code> property instead. This icon file will be used in-game and displayed no larger than 38px x 38px by default.
Extensions that previously defined icons in the manifest should now define a single value for the <code>"icon"</code> property instead. This icon file will be used in-game and displayed no larger than 38px x 38px by default.


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And a previous <code>manifest.json</code> of (irrelevant properties stripped):
And a previous <code>manifest.json</code> of (irrelevant properties stripped):
  <nowiki>{
  <nowiki>{
   "icons": {
   "icons": {
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The new <code>manifest.json</code> would be:
The new <code>manifest.json</code> would be:
  <nowiki>{
  <nowiki>{
   "icon": "my-icon-48.png",
   "icon": "my-icon-48.png",
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== The "Loading Loop" ==
== The "Loading Loop" ==
Both userscripts and extensions would often end up with a ''funky'' loop that is some variation of the following in order to wait until the game has loaded into a character to perform actions:
Both userscripts and extensions would often end up with a ''funky'' loop that is some variation of the following in order to wait until the game has loaded into a character to perform actions:
  <nowiki>var loadInterval = setInterval(() => {
  <nowiki>var loadInterval = setInterval(() => {
   var isGameLoaded = window.isLoaded && !window.currentlyCatchingUp;
   var isGameLoaded = window.isLoaded && !window.currentlyCatchingUp;
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With the new mod system's context API, that's no longer necessary. Instead, the script should use a game lifecycle hook, with the most comparable being <code>onInterfaceReady</code>:
With the new mod system's context API, that's no longer necessary. Instead, the script should use a game lifecycle hook, with the most comparable being <code>onInterfaceReady</code>:
  <nowiki>mod.register(ctx => {
  <nowiki>mod.register(ctx => {
   ctx.onInterfaceReady(() => {
   ctx.onInterfaceReady(() => {
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== Loading Packaged Resources ==
== Loading Packaged Resources ==
This section is specific to extensions, as this isn't a concept (commonly) supported in userscripts. If the extension being migrated over contained scripts, stylesheets, images, audio, or other files that weren't automatically loaded as part of the <code>content_scripts</code> but utilized during runtime, chances are those resources were retrieved using the <code>browser.runtime.getURL</code> (or <code>chrome.runtime.getURL</code>) method. Instead, the migrated mod should rely on the new mod context API's method, <code>getResourceUrl</code>. This method takes in a string value that is the requested resource's location relative to the manifest.json (root) of the mod package.
This section is specific to extensions, as this isn't a concept (commonly) supported in userscripts. If the extension being migrated over contained scripts, stylesheets, images, audio, or other files that weren't automatically loaded as part of the <code>content_scripts</code> but utilized during runtime, chances are those resources were retrieved using the <code>browser.runtime.getURL</code> (or <code>chrome.runtime.getURL</code>) method. Instead, the migrated mod should rely on the new mod context API's method, <code>getResourceUrl</code>. This method takes in a string value that is the requested resource's location relative to the manifest.json (root) of the mod package.


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And assuming <code>entryScript.js</code> was loaded as part of the manifest's <code>"load"</code> property, the <code>entryScript.js</code> could retrieve and use or load the <code>icon.png</code> and <code>helper.js</code> with the following:
And assuming <code>entryScript.js</code> was loaded as part of the manifest's <code>"load"</code> property, the <code>entryScript.js</code> could retrieve and use or load the <code>icon.png</code> and <code>helper.js</code> with the following:
  <nowiki>mod.register(async (ctx) => {
  <nowiki>mod.register(async (ctx) => {
   var iconUrl = ctx.getResourceUrl('assets/icon.png');
   var iconUrl = ctx.getResourceUrl('assets/icon.png');
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== Next Steps ==
== Next Steps ==
Hopefully the mod has been successfully migrated and is working with the new mod system at this point. But that's only the beginning - explore all of the new APIs and techniques available to you in the other Official Mod Making Guides:
Hopefully the mod has been successfully migrated and is working with the new mod system at this point. But that's only the beginning - explore all of the new APIs and techniques available to you in the other Official Mod Making Guides:
* [[Mod Creation/Getting Started]]
* [[Mod Creation/Getting Started]]
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