libGDX - cross-platform Java game development framework based on OpenGL (ES) that works on Windows, Linux, Mac OS X, Android, your WebGL enabled browser and iOS.
Comes with batteries included. Write 2D or 3D games, let libGDX worry about low-level details.
ProGuard rules for libGDX
Add the following lines to your ProGuard configuration proguard.cfg file in project.
-verbose
-dontwarn android.support.**
-dontwarn com.badlogic.gdx.backends.android.AndroidFragmentApplication
-dontwarn com.badlogic.gdx.utils.GdxBuild
-dontwarn com.badlogic.gdx.physics.box2d.utils.Box2DBuild
-dontwarn com.badlogic.gdx.jnigen.BuildTarget*
-keepclassmembers class com.badlogic.gdx.backends.android.AndroidInput* {
(com.badlogic.gdx.Application, android.content.Context, java.lang.Object, com.badlogic.gdx.backends.android.AndroidApplicationConfiguration);
}
-keepclassmembers class com.badlogic.gdx.physics.box2d.World {
boolean contactFilter(long, long);
void beginContact(long);
void endContact(long);
void preSolve(long, long);
void postSolve(long, long);
boolean reportFixture(long);
float reportRayFixture(long, float, float, float, float, float);
}
For more information about libGDX please see the website.