///<summary>
/// Adds a simulation island connection to the deactivation manager.
///</summary>
///<param name="connection">Connection to add.</param>
///<exception cref="ArgumentException">Thrown if the connection already belongs to a manager.</exception>
public void Add(SimulationIslandConnection connection)
{
//DO A MERGE IF NECESSARY
if (connection.DeactivationManager == null)
{
addLocker.Enter();
connection.DeactivationManager = this;
if (connection.entries.Count > 0)
{
var island = connection.entries.Elements[0].Member.SimulationIsland;
for (int i = 1; i < connection.entries.Count; i++)
{
SimulationIsland opposingIsland;
if (island != (opposingIsland = connection.entries.Elements[i].Member.SimulationIsland))
{
//Need to do a merge between the two islands.
//Note that this merge may eliminate the need for a merge with subsequent connection if they belong to the same island.
island = Merge(island, opposingIsland);
}
}
//If it was slated for removal, that means the flush stage will try to split it.
//Since it was just added back, splitting is known to be pointless.
//Just set the flag and the flush will ignore the split attempt.
if (connection.SlatedForRemoval)
{
connection.SlatedForRemoval = false;
}
else
{
//If the connection was NOT slated for removal, that means the reference don't currently exist.
//(If the connection was slated for removal, that would imply the connection existed previously, so it must have had references.)
connection.AddReferencesToConnectedMembers();
}
}
addLocker.Exit();
}
else
{
throw new ArgumentException("Cannot add connection to deactivation manager; it already belongs to one.");
}
}
