public bool GetNextPosition(ScenePresence scenePresence, float closeToRange, TimeSpan diffFromLastFrame, float secondsBeforeForcedTeleport,
out Vector3 position, out TravelMode state, out bool needsToTeleportToPosition, out bool changingNodes)
{
changingNodes = false;
lock (m_lock)
{
while (true)
{
//Initialize default values
position = Vector3.Zero;
state = TravelMode.None;
needsToTeleportToPosition = false;
//See if we have a valid position to attempt to move to
if (CurrentPos < m_listOfPositions.Count)
{
//Get the position/state and make sure that it is within the region
position = m_listOfPositions[CurrentPos];
Util.ForceValidRegionXYZ(ref position);
state = m_listOfStates[CurrentPos];
if (state == TravelMode.Wait)
{
if (!m_waitingSince.HasValue)//Has no value, so we're just starting to wait
{
m_waitingSince = DateTime.Now;
}
else
{
double ms = (DateTime.Now - m_waitingSince.Value).TotalMilliseconds;
if (ms > (position.X * 1000f))
{
//We're done waiting, increment the position counter and go around the loop again
m_waitingSince = null;
CurrentPos++;
changingNodes = true;
m_timeSinceLastChangedPosition = TimeSpan.FromMilliseconds(0);
continue;
}
}
return(true);
}
else
{
//We are attempting to move somewhere
if (scenePresence.IsAtTarget(position, closeToRange))
{
//We made it to the position, begin proceeding towards the next position
CurrentPos++;
changingNodes = true;
m_timeSinceLastChangedPosition = TimeSpan.FromMilliseconds(0);
continue;
}
else
{
m_timeSinceLastChangedPosition = m_timeSinceLastChangedPosition.Add(diffFromLastFrame);
//We need to see if we should teleport to the next node rather than waiting for us to get there
if (m_timeSinceLastChangedPosition.TotalMilliseconds > (secondsBeforeForcedTeleport * 1000))
{
changingNodes = true;
m_timeSinceLastChangedPosition = TimeSpan.FromMilliseconds(0);
needsToTeleportToPosition = true;
}
}
return(true);
}
}
else
{
//We've finished all the states in the position list
m_timeSinceLastChangedPosition = TimeSpan.FromMilliseconds(0);
if (m_listOfPositions.Count == 0)//Sanity check
{
return(false);
}
if (FollowIndefinitely)
{
//If we're following indefinitely, then the counter is reset to the beginning and we go around again
CurrentPos = 0;
changingNodes = true;
continue;
}
return(false);
}
}
}
}