Example #1
0
        protected override void OnAttach()
        {
            if (NativeCollisionObject == null)
            {
                MotionState = new XenkoMotionState(this);

                SetupBoneLink();

                var rbci = new BulletSharp.RigidBodyConstructionInfo(0.0f, MotionState, ColliderShape.InternalShape, Vector3.Zero);
                InternalRigidBody = new BulletSharp.RigidBody(rbci)
                {
                    UserObject = this,
                };

                NativeCollisionObject = InternalRigidBody;

                NativeCollisionObject.ContactProcessingThreshold = !Simulation.CanCcd ? 1e18f : 1e30f;
            }

            if (ColliderShape.NeedsCustomCollisionCallback)
            {
                NativeCollisionObject.CollisionFlags |= BulletSharp.CollisionFlags.CustomMaterialCallback;
            }

            if (ColliderShape.Is2D) //set different defaults for 2D shapes
            {
                InternalRigidBody.LinearFactor  = new Vector3(1.0f, 1.0f, 0.0f);
                InternalRigidBody.AngularFactor = new Vector3(0.0f, 0.0f, 1.0f);
            }

            var inertia = ColliderShape.InternalShape.CalculateLocalInertia(mass);

            InternalRigidBody.SetMassProps(mass, inertia);
            InternalRigidBody.UpdateInertiaTensor(); //this was the major headache when I had to debug Slider and Hinge constraint

            base.OnAttach();

            Mass            = mass;
            LinearDamping   = linearDamping;
            AngularDamping  = angularDamping;
            OverrideGravity = overrideGravity;
            Gravity         = gravity;
            RigidBodyType   = type;

            Simulation.AddRigidBody(this, (CollisionFilterGroupFlags)CollisionGroup, CanCollideWith);
        }