// The object is going dynamic (physical). Do any setup necessary
// for a dynamic linkset.
// Only the state of the passed object can be modified. The rest of the linkset
// has not yet been fully constructed.
// Return 'true' if any properties updated on the passed object.
// Called at taint-time!
public override bool MakeDynamic(BSPhysObject child)
{
bool ret = false;
DetailLog("{0},BSLinksetCompound.MakeDynamic,call,IsRoot={1}", child.LocalID, IsRoot(child));
if (IsRoot(child))
{
// The root is going dynamic. Make sure mass is properly set.
ScheduleRebuild(LinksetRoot);
}
else
{
// The origional prims are removed from the world as the shape of the root compound
// shape takes over.
BulletSimAPI.AddToCollisionFlags2(child.PhysBody.ptr, CollisionFlags.CF_NO_CONTACT_RESPONSE);
BulletSimAPI.ForceActivationState2(child.PhysBody.ptr, ActivationState.DISABLE_SIMULATION);
// We don't want collisions from the old linkset children.
BulletSimAPI.RemoveFromCollisionFlags2(child.PhysBody.ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
child.PhysBody.collisionType = CollisionType.LinksetChild;
ret = true;
}
return(ret);
}
private void SetPhysicalProperties()
{
BulletSimAPI.RemoveObjectFromWorld2(PhysicsScene.World.ptr, PhysBody.ptr);
ZeroMotion(true);
ForcePosition = _position;
// Set the velocity and compute the proper friction
ForceVelocity = _velocity;
// Setting the current and target in the motor will cause it to start computing any deceleration.
_velocityMotor.Reset();
_velocityMotor.SetCurrent(_velocity);
_velocityMotor.SetTarget(_velocity);
_velocityMotor.Enabled = false;
// This will enable or disable the flying buoyancy of the avatar.
// Needs to be reset especially when an avatar is recreated after crossing a region boundry.
Flying = _flying;
BulletSimAPI.SetRestitution2(PhysBody.ptr, BSParam.AvatarRestitution);
BulletSimAPI.SetMargin2(PhysShape.ptr, PhysicsScene.Params.collisionMargin);
BulletSimAPI.SetLocalScaling2(PhysShape.ptr, Scale);
BulletSimAPI.SetContactProcessingThreshold2(PhysBody.ptr, BSParam.ContactProcessingThreshold);
if (BSParam.CcdMotionThreshold > 0f)
{
BulletSimAPI.SetCcdMotionThreshold2(PhysBody.ptr, BSParam.CcdMotionThreshold);
BulletSimAPI.SetCcdSweptSphereRadius2(PhysBody.ptr, BSParam.CcdSweptSphereRadius);
}
UpdatePhysicalMassProperties(RawMass, false);
// Make so capsule does not fall over
BulletSimAPI.SetAngularFactorV2(PhysBody.ptr, OMV.Vector3.Zero);
BulletSimAPI.AddToCollisionFlags2(PhysBody.ptr, CollisionFlags.CF_CHARACTER_OBJECT);
BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, PhysBody.ptr, _position, _orientation);
// BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.ACTIVE_TAG);
BulletSimAPI.ForceActivationState2(PhysBody.ptr, ActivationState.DISABLE_DEACTIVATION);
BulletSimAPI.UpdateSingleAabb2(PhysicsScene.World.ptr, PhysBody.ptr);
// Do this after the object has been added to the world
PhysBody.collisionType = CollisionType.Avatar;
PhysBody.ApplyCollisionMask();
}
// Subscribe for collision events.
// Parameter is the millisecond rate the caller wishes collision events to occur.
public override void SubscribeEvents(int ms)
{
// DetailLog("{0},{1}.SubscribeEvents,subscribing,ms={2}", LocalID, TypeName, ms);
SubscribedEventsMs = ms;
if (ms > 0)
{
// make sure first collision happens
NextCollisionOkTime = Util.EnvironmentTickCountSubtract(SubscribedEventsMs);
PhysicsScene.TaintedObject(TypeName + ".SubscribeEvents", delegate()
{
if (PhysBody.HasPhysicalBody)
{
CurrentCollisionFlags = BulletSimAPI.AddToCollisionFlags2(PhysBody.ptr, CollisionFlags.BS_SUBSCRIBE_COLLISION_EVENTS);
}
});
}
else
{
// Subscribing for zero or less is the same as unsubscribing
UnSubscribeEvents();
}
}
