xsystem4-android

This is a work-in-progress Android port of xsystem4.

Android 5.0 or higher is required.

Downloading

APKs are available here.

Building

You can skip this section if you just want to run the app.

Prerequisites

• Linux or Mac
• Android SDK (Android Studio or Command Line Tools) https://developer.android.com/studio
• Android NDK, version r23 or higher https://developer.android.com/ndk
• CMake, version 3.21 or higher
• flex
• bison

Build Steps

1. Set the ANDROID_SDK_ROOT and ANDROID_NDK_HOME environment variables. For example, if you have installed Android Studio on a Mac:

   export ANDROID_SDK_ROOT=~/Library/Android/sdk
   export ANDROID_NDK_HOME=~/Library/Android/sdk/ndk/26.1.10909125

2. Clone this repository:

   git clone https://github.com/kichikuou/xsystem4-android.git
   cd xsystem4-android
   git submodule update --init --recursive

3. Run ./build-shared-libs.sh in the repository's root directory. This will build the native libraries and place them in project/app/src/main/jniLibs/.
4. Run ./gradlew build in the project directory. This will generate APK files under project/app/build/outputs/apk/.
5. To install the APK on your device, run ./gradlew installDebug in the project directory.

Installing Games

Follow the on-screen instructions to install a System4 game. You will need to transfer the game files to your device using MTP. For example, the directory structure for Rance VI should look like this:

Android
  data
    io.github.kichikuou.xsystem4
      files
        dummy.txt
        Rance6       <- Create this folder!
          Rance6.ain
          Rance6BA.ald
          ...
          Data
            DungeonData.dlf
            ...

If your device supports SD cards, you can place the game files under the Android/data/io.github.kichikuou.xsystem4/files/game_name directory on the SD card.

Alternatively, you can install a game from a ZIP archive on your device. Select "Install from ZIP" from the menu in the upper right corner.

Note: On some devices or Android versions, you may not be able to access the /Android/data directory via MTP. In such cases, you have to either use the "Install from ZIP" method or write directly to the SD card using a card reader on your PC.

Touch Gestures

The following operations can be simulated using touch gestures: