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Introduction

Capacitor plugin for connecting and using services by Apple Game Center and Google Play Game Services. Features included are access to Sign-In, Leaderboard, and Achievements.

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Capacitor Version	Support Status
Capacitor v5	✅
Capacitor v4	✅
Capacitor v3	✅
Capacitor v2	❌
Capacitor v1	❌

✅ - Supported 🚧 - WIP Support ❌ - No plans to support

Maintainers

The lovely folks at OpenForge! Feel free to tag any of the following:

Maintainer	Github
Ricardo	@Ricardo385
Paulina	@paulpauldevelops
Jedi	@jedihacks

Example Projects

Checkout these existing Ionic/Angular/Capacitor mobile game with the plugin installed and integrated:

• Rock The Steps
• OpenFarm

Getting Started

Install

npm install @openforge/capacitor-game-connect
npx cap sync

Additional Code Setup

Android

In order to use the plugin, you need to make sure to include this meta-data tag in your AndroidManifest.xml file of your app:

<meta-data android:name="com.google.android.gms.games.APP_ID" android:value="@string/game_services_project_id"/>

Then you need to set your Game Services Project ID in your strings.xml file inside your app/src/main/res/values.xml:

<string translatable="false"  name="game_services_project_id">YOU_APP_ID</string>

• Then on your MainActivity.class file you will need to import and register the plugin in your onCreate method:

@Override
public void onCreate(Bundle savedInstanceState) {
    registerPlugin(CapacitorGameConnectPlugin.class);
    super.onCreate(savedInstanceState);
}

Setup for Android

Follow this guide to configure correctly your Google Play Console to be able to use the Capacitor Game Connect plugin:

1. Go to your Google Play Console
2. If you don't have an app created, create one as a Game.
3. Go to Play Games Services under Grow section.
   • Cick Configuration
   • Select the option 'No, my game doesn’t use Google APIs', set a name and click Create.
4. Let's create a OAuth consent screen in Google Cloud Platform:
   • Go to your Google Cloud Platform. Make sure you have selected the correct app you want to create the OAuth consent screen.
   • Go to APIs & Services section, then in the sidebar click on OAuth consent screen
   • Choose your User Type (External or Internal) and click Create.
   • Fill the App Informationn required filds and then click on Save and Continue button at the bottom.
   • On the Scopes tab, click on Add or remove scopes and in the Search box type the following:
     • auth/games and click enter.
     • Select the two options that appears. .../auth/games and ./auth/games_lite
     • Then start a new search and type drive.appdata and select the option showed.
     • Click the Update button.
     • Click Save and Continue button at the bottom.
   • Let's add your Test Users. ** This will be super important because your Google Play Services will only work with these users while is not into Production
     • Click Add Users button and type your users email.
     • Click Add.
     • Click Save and Continue button.
   • And that's all! Click on Back to Dashboard button and then click on Publish App button to finish creating your OAuth consent screen.
   • If you want to modify you information there, simple click on Back To Testing button and then click on Edit App at the top.
5. Back to your Google Play Console
6. In the Credentials section, click on Add Credential
   • Select the Type "Android"
   • Fill the other options
   • On the Authorization section, click Create OAuth client.
     • In the Popup that has been displayed, click on the Create OAuth Client ID link attached. This will be open a new window redirecting to the Google Cloud Platform Credentials section.
     • Select the Application Type. Should be Android.
     • Name your OAuth 2.0 client
     • Type your package name of your application.
     • Run the following command in your terminal:
       • keytool -keystore path-to-debug-or-production-keystore -list -v
       • If you don't have your keystore created yet, you can follow this link to create it.
       • Once you get your SHA-1 certificate fingerprint, copy and paste it into the required field.
       • Click Create and then back to your Google Play Console.
   • Now that you have completed created your Credential ID, click in the dropdown option and select the one you have created.
   • Click Save Changes button at the bottom.
7. Back to your configurations and click Review and Publish button at the top.
   • Review if there are Actions Required to complete and fill them.

Creating Achievements on Android

Before use the Achievement Methods of the plugin, you need to setup your Achievements and Leaderboards in your Google Play Console following the next steps:

1. Navigate to your Google Play Console portal and select your app.
2. On the sidebar, go to Grow section and then Setup and management
3. Click Leaderboards and configure it by filling the fields. Then click save and publish your changes
4. Click Achievements and configure it by filling the fields. Then click save and publish your changes
5. Make sure all your changes are published by going to the Publishing section.

Setup for iOS

1. Click on Target App in xcode
2. Add team to Signing and Capabilities
3. Add Game Center Capability
4. Go to your Apps in https://appstoreconnect.apple.com/ and add your application
5. Scroll down in your App Store tab from your application view and check the Game Center field
6. Go to Services tab and configure both Leaderboards and Achievements
7. Go back to App Store tab and select you Leaderboards and Achievements configurations

API

• signIn()
• showLeaderboard(...)
• submitScore(...)
• showAchievements()
• unlockAchievement(...)
• incrementAchievementProgress(...)
• getUserTotalScore(...)
• Interfaces

signIn()

signIn() => Promise<{ player_name: string; player_id: string; }>

• Method to sign-in a user

Returns: Promise<{ player_name: string; player_id: string; }>

---

showLeaderboard(...)

showLeaderboard(options: { leaderboardID: string; }) => Promise<void>

• Method to display the Leaderboards

Param	Type
options	{ leaderboardID: string; }

---

submitScore(...)

submitScore(options: { leaderboardID: string; totalScoreAmount: number; }) => Promise<void>

• Method to submit a score to the Google Play Services SDK

Param	Type
options	{ leaderboardID: string; totalScoreAmount: number; }

---

showAchievements()

showAchievements() => Promise<void>

• Method to display the Achievements view

---

unlockAchievement(...)

unlockAchievement(options: { achievementID: string; }) => Promise<void>

• Method to unlock an achievement

Param	Type
options	{ achievementID: string; }

---

incrementAchievementProgress(...)

incrementAchievementProgress(options: { achievementID: string; pointsToIncrement: number; }) => Promise<void>

• Method to increment the progress of an achievement

Param	Type
options	{ achievementID: string; pointsToIncrement: number; }

---

getUserTotalScore(...)

getUserTotalScore(options: { leaderboardID: string; }) => Promise<PlayerScore>

• Method to get total player score from a leaderboard

Param	Type	Description
options	{ leaderboardID: string; }	: string }

Returns: Promise<PlayerScore>

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Interfaces

PlayerScore

Prop	Type
player_score	number

Testing Limitations

Android

In order to test the functionality, you must have a physical Android device. Trying to connect to Google Play Services through Android Studio Emulator/Simulator will not work. Note: Certain functionality may require having to sign your APK when building to your device.