demo

JME Android Game

A simple 3D space game for Android built with jMonkeyEngine 3.6.

Features

• Touch drag to rotate the Earth on any axis
• Inertia — flick and it coasts to a stop
• Tap to earn points and cycle the Earth's colour
• Orbiting rocket — a procedural rocket ship (red nose, white body, 4 fins) circles the Earth on a tilted plane
• Orange exhaust trail behind the rocket (particle emitter)
• Bloom glow on the engine nozzle (BloomFilter, GlowMode.Objects)
• Starfield — 250 stars scattered on a sphere shell, batched to one draw call
• Ambient + directional lighting for shaded, non-harsh geometry

Requirements

Tool	Version
Android Studio	Hedgehog or later
Android NDK	bundled via jme3-android-native
Min SDK	21 (Android 5.0)
Target SDK	34
OpenGL ES	2.0+

Getting Started

1. Clone the repo:

   git clone https://github.com/yaturner/jme-android-game.git

2. Open the jme-android-game folder in Android Studio (File → Open).
3. Let Gradle sync complete — it will download jME 3.6.1 from Maven Central.
4. Connect an Android device (API 21+) or start an emulator.
5. Run app.

Project Structure

app/src/main/
├── java/com/example/jmegame/
│   ├── MainActivity.java   # AndroidHarness entry point
│   └── CubeGame.java       # SimpleApplication — all game logic
├── AndroidManifest.xml
└── res/
    ├── mipmap-*/ic_launcher.png
    └── values/strings.xml
gradle/
└── libs.versions.toml      # jME 3.6.1-stable dependency versions

Key Dependencies

jme3-core          = "3.6.1-stable"   # engine core, math, scene graph
jme3-android       = "3.6.1-stable"   # Android backend + AndroidHarness
jme3-android-native= "3.6.1-stable"   # native .so libs for OpenGL ES
jme3-effects       = "3.6.1-stable"   # BloomFilter, post-processing

Controls

Gesture	Action
Drag	Rotate the Earth
Flick	Spin with inertia
Tap	+10 points, cycle Earth colour

License

MIT