/// <summary>Create this fixture in the simulation</summary> public virtual void Initialise(LPBody bod) { body = bod; myIndex = body.AddFixture(this); GetPhysProps(); IntPtr shape = GetShape(); ThingPtr = LPAPIFixture.AddFixture(body.GetPtr(), (int)Shapetype , shape , Density, actualFriction, actualRestitution, IsSensor, myIndex); LPAPIFixture.SetFixtureFilterData(ThingPtr, (Int16)CollisionGroupIndex, categoryBits, maskBits); }