private void ParcelJoinHandler(Packet packet, LLAgent agent)
{
ParcelJoinPacket join = (ParcelJoinPacket)packet;
int startX = (int)Math.Round(join.ParcelData.West) / 4;
int startY = (int)Math.Round(join.ParcelData.South) / 4;
int endX = ((int)Math.Round(join.ParcelData.East) / 4) - 1;
int endY = ((int)Math.Round(join.ParcelData.North) / 4) - 1;
if (startX < 0 || startY < 0 || endX < startX || endY < startY ||
endX > 63 || endY > 63 || startX > endX || startY > endY)
{
m_log.Warn(agent.Name + String.Format(" sent invalid ParcelJoin: West {0} South {1} East {2} North {3}",
join.ParcelData.West, join.ParcelData.South, join.ParcelData.East, join.ParcelData.North));
return;
}
int largestArea = 0;
Vector3 aabbMin, aabbMax;
// Get the selected parcels
List <SceneParcel> selectedParcels = new List <SceneParcel>();
for (int y = startY; y <= endY; y++)
{
for (int x = startX; x <= endX; x++)
{
SceneParcel parcel;
if (m_parcels.TryGetParcel(m_parcels.GetParcelID(x, y), out parcel))
{
if (!selectedParcels.Contains(parcel) && m_permissions.CanEditParcel(agent, parcel))
{
// Largest parcel is the "master" parcel that smaller parcels are joined into
int area = ParcelManager.GetParcelArea(parcel, out aabbMin, out aabbMax);
if (area > largestArea)
{
largestArea = area;
selectedParcels.Insert(0, parcel);
}
else
{
selectedParcels.Add(parcel);
}
}
}
}
}
// Enough parcels selected check
if (selectedParcels.Count < 2)
{
m_scene.PresenceAlert(this, agent, "Not enough leased parcels in selection to join");
return;
}
// Same owner check
for (int i = 1; i < selectedParcels.Count; i++)
{
if (selectedParcels[i].OwnerID != selectedParcels[0].OwnerID)
{
m_scene.PresenceAlert(this, agent, "All parcels must have the same owner before joining");
return;
}
}
m_parcels.JoinParcels(selectedParcels);
// Broadcast the new parcel overlay info
m_scene.ForEachPresence(SendParcelOverlay);
}
