public override void PreSolve(Contact contact, Manifold oldManifold)
{
Manifold manifold = contact.Manifold;
if (manifold.PointCount == 0)
{
return;
}
Fixture fixtureA = contact.FixtureA;
Fixture fixtureB = contact.FixtureB;
PointState[] state1 = new PointState[Box2DSettings.b2_maxManifoldPoints],
state2 = new PointState[Box2DSettings.b2_maxManifoldPoints];
Manifold.GetPointStates(ref state1, ref state2, ref oldManifold, ref manifold);
WorldManifold worldManifold = contact.WorldManifold;
for (int i = 0; i < manifold.PointCount && m_pointCount < ContactPoint.k_maxContactPoints; ++i)
{
m_points[m_pointCount].fixtureA = fixtureA;
m_points[m_pointCount].fixtureB = fixtureB;
m_points[m_pointCount].position = worldManifold.Points[i];
m_points[m_pointCount].normal = worldManifold.Normal;
m_points[m_pointCount].state = state2[i];
++m_pointCount;
}
}