A sample project demonstrating use of the Android Game Development Kit libraries. AGDKTunnel is derived from the NDK sample Endless Tunnel.
AGDKTunnel uses the following AGDK libraries:
- Frame Pacing
- GameActivity
- GameController
- GameTextInput
- Oboe
AGDKTunnel can optionally use the following Play libraries:
- Play Games Services for Play identity and cloud save
- Play Asset Delivery (via Play core libraries)
- Input SDK for Google Play Games for PC
AGDKTunnel uses the Library Wrapper tool to generate interface files to call the Vibrator API in order to provide haptic feedback on in-game collisions.
- cd to
agdk/third_party
- git clone https://github.com/zeux/volk.git
- git clone https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git
Open the `agdktunnel' directory in Android Studio 2024.2.1 Patch 2 or higher.
The configuration file used to generate the wrapped Android API is located in
agdktunnel/library_wrapper/config.json
. The generated files are located in
agdktunnel/app/src/main/cpp/native_wrappers
.
The generation was done by copying the Library Wrapper lw.jar
file into the root agdk
directory
and running the following command from a terminal with adgk
as the working directory:
java -jar lw.jar -o "agdktunnel/app/src/main/cpp/native_wrappers" -c "agdktunnel/library_wrapper/config.json"
For more information on integrating generated wrapper code into your game, see the guide page.
Build variants are used to differentiate between the default (mobile) platform and the PC platform. To build AGDKTunnel to run in Google Play Games for PC follow these steps:
- Go to Build > Select Build Variant and select the
playGamesPC
build variant. - (Optional) Enable Play Games Services to turn-on cloud save on mobile and PC.
- (Optional) Enable Play Asset Delivery API to delivery DXT1 compressed texture assets.
Play Games Services (PGS) is used for sign-in and cloud save. To enable these features, follow these steps:
- Rename the package of AGDK Tunnel to a name of your choosing.
- Create an application on the Google Play Console and follow the steps to set up Play Games Services using your package name.
- Replace the game_services_project_id string value in
app/src/main/res/values/strings.xml
with the id of your project in the Google Play Console.
The Play Asset Delivery (PAD) API with Texture Compression Format Targeting (TCFT) is used to deliver optimal compressed textures (ETC2 by default and DXT1 for Google Play Games for PC). To enable PAD, follow these steps:
- Edit the
gradle.properties
file and change:PADEnabled=false
toPADEnabled=true
. - Download the Play Core API into the project
and copy the
play-core-native-sdk
directory into theapps/libs
directory. - Play Asset Delivery requires building an Android App Bundle instead of an APK. Bundletool will help you to test your Android App Bundle locally, download bundletool by visiting the bundletool releases page and install it in the root of the project.
- Using Android Studio build an App Bundle Build > Build bundle(s)/APK(s) > Build bundle(s)
- Install from the Android App Bundle file to your device using bundletool:
For the mobile variant in debug:
java -jar bundletool-all-1.9.1.jar build-apks
--bundle=app/build/outputs/bundle/mobileDebug/app-mobile-debug.aab
--output=agdktunnel.apks
--local-testing
java -jar bundletool-all-1.9.1.jar install-apks --apks=agdktunnel.apks
For the Google Play Games for PC variant in debug:
java -jar bundletool-all-1.9.1.jar build-apks
--bundle=app/build/outputs/bundle/playGamesPCDebug/app-playGamesPC-debug.aab
--output=agdktunnel.apks
--local-testing
java -jar bundletool-all-1.9.1.jar install-apks --apks=agdktunnel.apks
For more information see the codelab: Using Play Asset Delivery in native games
1.2.1 - Updated to current AGDK/NDK/AGP versions, deprecated Android Performance Tuner integration 1.2.0 - Major refactor to add basegameframework support, Vulkan/GLES simplerenderer, updating AGDK versions 1.0.4 - Merged Play integrations from AOSP. Play Asset Delivery, Input SDK, PGS sign in.