I guess that is a red herring.
I think people must be using JBox2d.
Here's a quick test I wrote in case it helps anyone:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Vec2 gravity = new Vec2(0, -10);
World world = new World(gravity, true);
world.setContactListener(new My_Listener());
BodyDef bodyDef = new BodyDef();
bodyDef.type = BodyType.DYNAMIC;
bodyDef.position = new Vec2(0, 110);
bodyDef.linearVelocity = new Vec2(100, 0);
Body body = world.createBody(bodyDef);
PolygonShape box = new PolygonShape();
box.setAsBox(0.5f, 0.5f);
FixtureDef fixtureDef = new FixtureDef();
fixtureDef.shape = box;
fixtureDef.density = 1.0f;
fixtureDef.friction = 0.3f;
body.createFixture(fixtureDef);
Vec2 pos1 = body.getPosition();
Log.d("test", "pos1: " + pos1.x + "," + pos1.y);
world.step((float) 1, 8, 1);
Vec2 pos2 = body.getPosition();
Log.d("test", "pos2: " + pos2.x + "," + pos2.y);
}
On Thursday, February 21, 2013 2:26:01 PM UTC-6, bob wrote:
>
> I heard rumors of people using Box2d on Android.
>
> I searched and came across this project:
>
> http://code.google.com/p/androidbox2d/
>
> However, it appears to be in disarray. Does anyone know if this is what
> people are really using to do Box2d on Android?
>
> Also, it has this curious outstanding issue of almost 4 years:
>
> *What steps will reproduce the problem?*
> 1. Open androidbox2d wiki
> 2. Search for instructions.
> 3. Deal with disappointment and dismay. No instructions will be found.
>
> *What is the expected output? What do you see instead?*
> Expected instructions. Instead, I see nothing.
>
> *What version of the product are you using? On what operating system?*
> Latest.
>
>
>
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