/// <summary>
/// Updates the state of an agent that is already in transit.
/// </summary>
/// <param name='id'></param>
/// <param name='newState'></param>
/// <returns></returns>
/// <exception cref='Exception'>Illegal transitions will throw an Exception</exception>
internal void SetState(ScenePresenceState newState)
{
bool transitionOkay = false;
lock (this)
{
if (newState == m_state)
return;
else if (newState == ScenePresenceState.Running && m_state == ScenePresenceState.PreRemove)
transitionOkay = true;
else if (newState == ScenePresenceState.PreRemove && m_state == ScenePresenceState.Running)
transitionOkay = true;
else if (newState == ScenePresenceState.Removing)
{
if (m_state == ScenePresenceState.Running || m_state == ScenePresenceState.PreRemove)
transitionOkay = true;
}
else if (newState == ScenePresenceState.Removed && m_state == ScenePresenceState.Removing)
transitionOkay = true;
}
if (!transitionOkay)
{
throw new Exception(
string.Format(
"Scene presence {0} is not allowed to move from state {1} to new state {2} in {3}",
m_sp.Name, m_state, newState, m_sp.Scene.Name));
}
else
{
m_state = newState;
}
}
internal ScenePresenceStateMachine(ScenePresence sp)
{
m_sp = sp;
m_state = ScenePresenceState.Running;
}
internal ScenePresenceStateMachine(ScenePresence sp)
{
m_sp = sp;
m_state = ScenePresenceState.Running;
}