m_world.setParticleRadius(0.35f);
m_world.setParticleDamping(0.2f);
{
CircleShape shape = new CircleShape();
shape.m_p.set(0, 30);
shape.m_radius = 20;
ParticleGroupDef pd = new ParticleGroupDef();
pd.flags = ParticleType.b2_waterParticle;
pd.shape = shape;
m_world.createParticleGroup(pd);
}
{
BodyDef bd = new BodyDef();
bd.type = BodyType.DYNAMIC;
Body body = m_world.createBody(bd);
CircleShape shape = new CircleShape();
shape.m_p.set(0, 80);
shape.m_radius = 5;
body.createFixture(shape, 0.5f);
}