private void LinkNonRootPart(SceneObjectPart part, Vector3 oldGroupPosition, Quaternion oldGroupRotation, int linkNum)
{
Quaternion oldRot = part.RotationOffset;
// first fix from old local to world
// position
Vector3 axPos = part.OffsetPosition;
axPos *= oldGroupRotation;
part.SetGroupPosition(oldGroupPosition + axPos);
//offset
part.SetRotationOffset(false, oldGroupRotation * oldRot ,false);
// have it in world coords lets fix other things
m_scene.SceneGraph.LinkPartToSOG(this, part, linkNum);
part.CreateSelected = true;
// now lets move to the new parent frame
Quaternion rootRotation = m_rootPart.RotationOffset;
Vector3 pos = part.GroupPosition - AbsolutePosition;
pos *= Quaternion.Inverse(rootRotation);
part.SetOffsetPosition(pos);
Quaternion newRot = Quaternion.Inverse(rootRotation) * oldRot;
part.SetRotationOffset(false,newRot,false);
// caller will tell the rest about this position changes..
}
/// <summary>
/// Delink the given prim from this group. The delinked prim is established as
/// an independent SceneObjectGroup.
/// </summary>
/// <param name="partID"></param>
/// <param name="sendEvents"></param>
/// <returns>The object group of the newly delinked prim.</returns>
public SceneObjectGroup DelinkFromGroup(SceneObjectPart linkPart, bool sendEvents)
{
// m_log.DebugFormat(
// "[SCENE OBJECT GROUP]: Delinking part {0}, {1} from group with root part {2}, {3}",
// linkPart.Name, linkPart.UUID, RootPart.Name, RootPart.UUID);
Quaternion worldRot = linkPart.GetWorldRotation();
// Remove the part from this object
m_scene.SceneGraph.DeLinkPartFromEntity(this, linkPart);
/* this is already done in DeLinkPartFromEntity
if (m_partsList.Count == 1 && RootPart != null) //Single prim is left
RootPart.LinkNum = 0;
else
{
lock (m_partsLock)
{
foreach (SceneObjectPart p in m_partsList)
{
if (p.LinkNum > linkPart.LinkNum)
p.LinkNum--;
}
}
}
*/
linkPart.SetParentLocalId(0);
linkPart.LinkNum = 0;
if (linkPart.PhysActor != null)
{
m_scene.SceneGraph.PhysicsScene.RemovePrim(linkPart.PhysActor);
// linkPart.PhysActor.delink();
}
// We need to reset the child part's position
// ready for life as a separate object after being a part of another object
Quaternion parentRot = m_rootPart.RotationOffset;
Vector3 axPos = linkPart.OffsetPosition;
axPos *= parentRot;
linkPart.SetOffsetPosition(axPos);
linkPart.FixGroupPosition(AbsolutePosition + linkPart.OffsetPosition,false);
linkPart.FixOffsetPosition(Vector3.Zero, false);
linkPart.RotationOffset = worldRot;
SceneObjectGroup objectGroup = new SceneObjectGroup(linkPart, Scene);
m_scene.SceneGraph.DelinkPartToScene(objectGroup);
if (sendEvents)
linkPart.TriggerScriptChangedEvent(Changed.LINK);
linkPart.Rezzed = RootPart.Rezzed;
//This is already set multiple places, no need to do it again
//HasGroupChanged = true;
//We need to send this so that we don't have issues with the client not realizing that the prims were unlinked
ScheduleGroupUpdate(PrimUpdateFlags.FullUpdate);
return objectGroup;
}
