/// <summary>
/// Handler, when client requests to be put on specific level slot.
/// </summary>
/// <param name="sender">Client who sent request.</param>
/// <param name="identifier">Level identifier usually in format levelID_version.</param>
/// <param name="slot">Slot number from range 0-3.</param>
public void FillSlot(ConnectedClient sender, String identifier, Int32 slot)
{
// First off, check whether occupancy info already exists for such a level identifier.
OccupancyInfo occupancyInfo = null;
lock (this.occupiedSlotsSyncLock)
{
this.occupiedSlots.TryGetValue(identifier, out occupancyInfo);
}
if (occupancyInfo == null)
{
// It does not, which means that noone is currently occupying any slot of the specified level,
// therefore, we need to create new OccupancyInfo for it.
occupancyInfo = new OccupancyInfo(identifier);
lock (this.occupiedSlotsSyncLock)
{
this.occupiedSlots.Add(identifier, occupancyInfo);
}
// No need to check whether slot is free, because we just created new occupancy info, however we still
// need to check if client is occupying different slot which we need to clean firstly.
OccupancyInfo oldOccInfo = sender.OccupancyInfo;
if (oldOccInfo != null)
{
// Client is already occupying a slot, lets clear it firstly.
this.ClearSlot(sender, true);
}
// All done, lets assign occupancy info to client, fill slot and notify others.
sender.OccupancyInfo = occupancyInfo;
sender.OccupancyInfo.FillSlot(sender, slot);
this.broadcastFillSlot(sender, identifier, slot);
}
else
{
// OccupancyInfo already exists which means that either someone else has already filled one of slots
// for the specified level or it was filled in the past but it was not removed from the list.
// First of all, check whether client is not occupying any other slots already.
OccupancyInfo oldOccInfo = sender.OccupancyInfo;
if (oldOccInfo != null)
{
// Client is already occupying a slot, lets clear it firstly.
this.ClearSlot(sender, true);
}
// Next up check, whether specified slot is free.
if (occupancyInfo.IsSlotFree(slot))
{
// It is, we can finally assign occupancy info, fill slot and notify others.
sender.OccupancyInfo = occupancyInfo;
sender.OccupancyInfo.FillSlot(sender, slot);
this.broadcastFillSlot(sender, identifier, slot);
}
}
}
/// <summary>
/// Checks whether it is possible to start game of specified occupancy info.
/// If it is, initialize and start new race.
/// </summary>
/// <param name="occupancyInfo">Occupancy info to check.</param>
private void checkStartGame(OccupancyInfo occupancyInfo)
{
if (occupancyInfo.CanStartGame())
{
// We can start a new game, lets obtain list of clients.
List <ConnectedClient> clients = occupancyInfo.GetClients();
// Clear appropriate slots and remove clients from this right room.
foreach (ConnectedClient cli in clients)
{
this.ClearSlot(cli, false);
this.RemoveClientFromRightRoom(cli);
}
Race newRace = new Race(occupancyInfo.LevelIdentifier, clients);
newRace.Initialize();
newRace.StartRace();
}
}
