public override void PreSolve(Box2D.Dynamics.Contacts.b2Contact contact, ref Box2D.Collision.b2Manifold oldManifold)
{
b2Manifold manifold = contact.GetManifold();
if (manifold.pointCount == 0)
{
return;
}
b2Fixture fixtureA = contact.GetFixtureA();
b2Fixture fixtureB = contact.GetFixtureB();
b2PointState[] state1 = new b2PointState[b2Settings.b2_maxManifoldPoints];
b2PointState[] state2 = new b2PointState[b2Settings.b2_maxManifoldPoints];
b2Collision.b2GetPointStates(state1, state2, ref oldManifold, ref manifold);
b2WorldManifold worldManifold = new b2WorldManifold();
contact.GetWorldManifold(ref worldManifold);
for (int i = 0; i < manifold.pointCount && m_pointCount < k_maxContactPoints; ++i)
{
ContactPoint cp = m_points[m_pointCount];
cp.fixtureA = fixtureA;
cp.fixtureB = fixtureB;
cp.position = worldManifold.points[i];
cp.normal = worldManifold.normal;
cp.state = state2[i];
m_points[m_pointCount] = cp;
++m_pointCount;
}
}
