/// <summary>
/// Calculates the bounding rectangle of the given zone based on a given world size and position.
/// </summary>
/// <param name="zone">Zone to calculate bounds for.</param>
/// <param name="target_zone">Target zone to calculate bounds for.</param>
/// <param name="world_x">X position of world.</param>
/// <param name="world_y">Y position of world.</param>
/// <param name="world_w">Width of world.</param>
/// <param name="world_h">Height of world.</param>
/// <param name="zone_x">Resulting zone boundry X position.</param>
/// <param name="zone_y">Resulting zone boundry Y position.</param>
/// <param name="zone_w">Resulting zone boundry width.</param>
/// <param name="zone_h">Resulting zone boundry height.</param>
private bool CalculateZoneBoundsInternal(Zone zone, Zone target_zone, int world_x, int world_y, int world_w, int world_h, out int zone_x, out int zone_y, out int zone_w, out int zone_h)
{
if (zone == target_zone)
{
zone_x = world_x;
zone_y = world_y;
zone_w = world_w;
zone_h = world_h;
return true;
}
// Is this split?
if (zone.ChildZone1 != null || zone.ChildZone2 != null)
{
if (zone.SplitOrientation == ZoneSplitOrientation.Horizontal)
{
if (CalculateZoneBoundsInternal(zone.ChildZone1, target_zone, world_x, world_y, world_w / 2, world_h, out zone_x, out zone_y, out zone_w, out zone_h) == true)
{
return true;
}
if (CalculateZoneBoundsInternal(zone.ChildZone2, target_zone, world_x + (world_w / 2), world_y, world_w / 2, world_h, out zone_x, out zone_y, out zone_w, out zone_h) == true)
{
return true;
}
}
else
{
if (CalculateZoneBoundsInternal(zone.ChildZone1, target_zone, world_x, world_y, world_w, world_h / 2, out zone_x, out zone_y, out zone_w, out zone_h) == true)
{
return true;
}
if (CalculateZoneBoundsInternal(zone.ChildZone2, target_zone, world_x, world_y + (world_h / 2), world_w, world_h / 2, out zone_x, out zone_y, out zone_w, out zone_h) == true)
{
return true;
}
}
}
zone_x = 0;
zone_y = 0;
zone_w = 0;
zone_h = 0;
return false;
}
/// <summary>
/// Returns true if connected to all super peers for the given zone.
/// </summary>
public bool ConnectedToAllZoneSuperPeers(Zone zone)
{
foreach (ZoneSuperPeer peer in zone.SuperPeers)
{
if (!RegisteredToZoneSuperPeer(peer))
{
return false;
}
else
{
bool found = false;
foreach (ClientToSuperPeerConnection c in m_superPeerConnections)
{
if (c.Connection.Connected == true &&
c.Connection.ConnectionEstablished == true &&
c.Connection.IPAddress == peer.ClientIPAddress &&
c.Connection.Port == peer.ClientListenPort)
{
found = true;
break;
}
}
if (found == false)
{
return false;
}
}
}
return true;
}
/// <summary>
/// Invoked when a super-peer lose's control over a zone.
/// </summary>
/// <param name="zone">Zone that super peer lost control of.</param>
/// <param name="superPeer">Super peer that lost control.</param>
internal void SuperPeerLostControl(Zone zone, ZoneSuperPeer superPeer)
{
// Peer from same zone was lost, we should try and serialize our state now.
if (superPeer.ZoneID == m_zone_id)
{
foreach (SuperPeerToClientConnection conn in m_registeredPeers)
{
conn.StoreAccount("SuperPeer In Zone Lost Control, SuperPeers="+zone.SuperPeers.Count+" Peers="+m_registeredPeers.Count);
}
}
}
/// <summary>
/// Removes the given zone from this grid.
/// </summary>
/// <param name="zone">Zone to remove.</param>
public void RemoveZone(Zone zone)
{
// Remove the zone.
for (int i = 0; i < m_zones.Count; i++)
{
int key = m_zones.Keys.ElementAt(i);
Zone sub_zone = m_zones[key];
if (sub_zone.ID == zone.ID)
{
m_zones.Remove(key);
}
}
// Remove references from all other zones.
foreach (Zone z in m_zones.Values)
{
if (z.ChildZone1 == zone)
{
z.ChildZone1 = null;
z.ChildZone1ID = 0;
}
if (z.ChildZone2 == zone)
{
z.ChildZone2 = null;
z.ChildZone2ID = 0;
}
if (z.Parent == zone)
{
z.Parent = null;
z.ParentID = 0;
}
}
if (m_rootZone == zone)
{
m_rootZone = null;
}
}
/// <summary>
/// Unregisters with all super peers that are not relevant to the new zone the player is moving ot.
/// </summary>
/// <param name="zone">Zone that player is moving to.</param>
private void UnregisterWithOldSuperPeers(Zone zone)
{
foreach (ZoneSuperPeer peer in m_registeredSuperPeers)
{
bool found = false;
bool alreadyUnregistering = false;
foreach (ZoneSuperPeer target_peer in zone.SuperPeers)
{
if (peer.ID == target_peer.ID)
{
found = true;
break;
}
}
foreach (ZoneSuperPeer target_peer in m_unregisteringSuperPeers)
{
if (peer.ID == target_peer.ID)
{
alreadyUnregistering = true;
break;
}
}
if (found == false && alreadyUnregistering == false)
{
bool foundConnection = false;
// Send unregister packets to the super peer.
foreach (ClientToSuperPeerConnection connection in m_superPeerConnections)
{
if (connection.Connection.IPAddress == peer.ClientIPAddress &&
connection.Connection.Port == peer.ClientListenPort)
{
Logger.Info("Unregistering with SuperPeer #{0}.", LoggerVerboseLevel.High, peer.ID);
SuperPeerUnregisterPacket packet = new SuperPeerUnregisterPacket();
packet.SuperPeerID = peer.ID;
packet.ChangeZoneSuperPeerCount = m_changeZoneSuperPeerCount;
connection.Connection.SendPacket(packet);
foundConnection = true;
}
}
// Add to unregistering list.
m_registerEventList.Add("Unregistering with " + peer.ID);
m_unregisteringSuperPeers.Add(peer);
m_superPeersDirty = true;
if (foundConnection == false)
{
throw new InvalidOperationException("Fialed to find connection to unregister.");
}
}
}
}
/// <summary>
/// Connects to superpeers that are required for the new zone.
/// </summary>
/// <param name="zone">Zone that player is moving to.</param>
private void ConnectToNewSuperPeers(Zone zone)
{
foreach (ZoneSuperPeer peer in zone.SuperPeers)
{
bool connected = false;
// Are we connected to the peer hosting this super peer?
foreach (ClientToSuperPeerConnection c in m_superPeerConnections)
{
if (c.ClientID == peer.ClientID)
{
connected = true;
break;
}
}
if (connected == false)
{
Logger.Info("Connecting to peer hosting SuperPeer #{0} for zone #{1} on {2}:{3}.", LoggerVerboseLevel.High, peer.ID, peer.ZoneID, peer.ClientIPAddress, peer.ClientListenPort);
// Connect to super peer!
Connection connection = new Connection();
connection.ConnectOverTime(peer.ClientIPAddress, (ushort)peer.ClientListenPort);
m_superPeerConnections.Add(new ClientToSuperPeerConnection(this, connection, peer.ClientID));
}
}
}
/// <summary>
/// Loads the zone map from the database.
/// </summary>
private void LoadZones()
{
DBConnection db = m_databaseConnection;
DBResults results = null;
results = db.Query("SELECT id, child_zone_1_id, child_zone_2_id, parent_id, split_orientation FROM {0}",
Settings.DB_TABLE_ZONES);
// Clear out the zone grid.
m_zoneGrid.Clear();
// Add New Grids.
for (int i = 0; i < results.RowsAffected; i++)
{
DBRow row = results[i];
Zone zone = new Zone((int)row["id"],
(int)row["parent_id"],
(int)row["child_zone_1_id"],
(int)row["child_zone_2_id"],
(ZoneSplitOrientation)((int)row["split_orientation"]));
m_zoneGrid.AddZone(zone);
}
}
/// <summary>
/// Gets a list of connections to super peers that are controlling
/// the given zone.
/// </summary>
/// <param name="zone">Zone that is being controlled.</param>
/// <returns>List of connections to super peers of the zone.</returns>
private List<ClientToSuperPeerConnection> GetZoneSuperPeerConnections(Zone zone)
{
List<ClientToSuperPeerConnection> connections = new List<ClientToSuperPeerConnection>();
foreach (ZoneSuperPeer peer in zone.SuperPeers)
{
foreach (ClientToSuperPeerConnection c in m_superPeerConnections)
{
if (c.Connection.Connected == true &&
c.Connection.ConnectionEstablished == true &&
c.Connection.IPAddress == peer.ClientIPAddress &&
c.Connection.Port == peer.ClientListenPort)
{
connections.Add(c);
}
}
}
return connections;
}
/// <summary>
/// Invoked to given a client super-peer level control over a zone.
/// </summary>
/// <param name="zone">Zone to give control over.</param>
/// <param name="client_id">ID of client to be given control.</param>
internal void SuperPeerGainControl(Zone zone, int client_id)
{
if (m_isMaster == false)
{
return;
}
// Check zone is valid.
if (zone == null)
{
return;
}
// See if we already have control.
foreach (ZoneSuperPeer peer in zone.SuperPeers)
{
if (peer.ClientID == client_id)
{
return;
}
}
// Give client control.
ZoneSuperPeer new_peer = new ZoneSuperPeer();
new_peer.ClientID = client_id;
new_peer.ZoneID = zone.ID;
// Get connection address for client.
DBResults results = m_databaseConnection.Query(@"SELECT
`ip_address`,
`listen_port`
FROM
{0}
WHERE
`id`={1}",
Settings.DB_TABLE_ACTIVE_CLIENTS,
client_id);
if (results.RowsAffected > 0)
{
new_peer.ClientIPAddress = results[0]["ip_address"].ToString();
new_peer.ClientListenPort = (int)results[0]["listen_port"];
}
else
{
Logger.Error("Attempt to give control of zone (id={1}) to client that dosen't exist in database (id={0}).", LoggerVerboseLevel.Normal, client_id, zone.ID);
}
zone.SuperPeers.Add(new_peer);
Logger.Info("Client #{0} has taken control of Zone #{1}. {2} SuperPeers now controlling zone.", LoggerVerboseLevel.High, client_id, zone.ID, zone.SuperPeers.Count);
}
/// <summary>
/// Invoked to take a clients super-peer level control over a zone.
/// </summary>
/// <param name="zone">Zone to have control.</param>
/// <param name="client_id">ID of client to have control taken.</param>
internal void SuperPeerLossControl(Zone zone, int client_id)
{
if (m_isMaster == false)
{
return;
}
// Check zone is valid.
if (zone == null)
{
return;
}
// See if we already have control.
bool found = false;
foreach (ZoneSuperPeer peer in zone.SuperPeers.ToList())
{
if (peer.ClientID == client_id)
{
zone.SuperPeers.Remove(peer);
found = true;
}
}
if (found == true)
{
Logger.Warning("Client #{0} has lost control of Zone #{1}. {2} SuperPeers now controlling zone.", LoggerVerboseLevel.High, client_id, zone.ID, zone.SuperPeers.Count);
}
}
/// <summary>
/// Removes a zone from the grid. Changes are applied immediately.
/// </summary>
/// <param name="zone">Zone to remove.</param>
private void DeleteZone(Zone zone)
{
// Remove from zone grid.
m_zoneGrid.RemoveZone(zone);
// Loose control of all super peers.
foreach (ZoneSuperPeer peer in zone.SuperPeers.ToList())
{
SuperPeerLossControl(zone, peer.ClientID);
}
}
/// <summary>
/// Adds a new zone to the grid with the given settings. The zone
/// is not propogated until SaveZones() is called.
/// </summary>
/// <param name="child_1_zone">Child zone one if split, null if not split.</param>
/// <param name="child_2_zone">Child zone two if split, null if not split.</param>
/// <param name="split">Split type of zone.</param>
/// <returns>Returns the zone that was added.</returns>
private Zone AddZone(Zone parentZone, Zone child_1_zone, Zone child_2_zone, ZoneSplitOrientation split)
{
Zone zone = new Zone(0, 0, 0, 0, split);
zone.ChildZone1 = child_1_zone;
zone.ChildZone2 = child_2_zone;
zone.Parent = parentZone;
if (zone.ChildZone1 != null)
{
zone.ChildZone1ID = zone.ChildZone1.ID;
}
if (zone.ChildZone2 != null)
{
zone.ChildZone2ID = zone.ChildZone2.ID;
}
if (zone.Parent != null)
{
zone.ParentID = zone.Parent.ID;
}
// We need to generate a unique ID for this zone.
// This will get overriden when we commit to the database, but it allows us
// to differentiate until then.
int id = int.MinValue;
while (true)
{
if (m_zoneGrid.GetZoneByID(id) == null)
{
break;
}
id++;
}
zone.ID = id;
m_zoneGrid.AddZone(zone);
return zone;
}
/// <summary>
/// Gets the ID for the least burdended client (the one that has been assigned the least number of zones to control).
/// </summary>
/// <param name="zone">Zone capable of being overtaken by client.</param>
/// <returns>Client ID of least burdended client, or below or equal to 0 if none found.</returns>
private int GetLeastBurdenedClientID(Zone zone)
{
// Find lowest burdened client.
DBResults results = m_databaseConnection.Query(@"SELECT
a.id,
(
SELECT
COUNT(*)
FROM
{0} AS c
WHERE
c.client_id = a.id
) AS controlled_zone_count,
(
SELECT
COUNT(*)
FROM
{0} AS c
WHERE
c.client_id = a.id &&
c.zone_id = {2}
) AS this_zone_count,
listening,
account_id
FROM
{1} AS a
ORDER BY
controlled_zone_count ASC,
last_active_timestamp DESC
",
Settings.DB_TABLE_ZONE_SUPERPEERS,
Settings.DB_TABLE_ACTIVE_CLIENTS,
zone.ID);
if (results.RowsAffected > 0)
{
for (int i = 0; i < results.RowsAffected; i++)
{
if ((long)results[i]["this_zone_count"] <= 0 &&
(results[i]["listening"] != null && (int)results[i]["listening"] > 0) &&
(results[i]["account_id"] != null && (int)results[i]["account_id"] > 0))
{
return (int)results[i]["id"];
}
}
}
return 0;
}
/// <summary>
/// Invoked when a super-peer gains control over a zone.
/// </summary>
/// <param name="zone">Zone that super peer gained control of.</param>
/// <param name="superPeer">Super peer that gained control.</param>
private void SuperPeerGainedControl(Zone zone, ZoneSuperPeer superPeer)
{
// Is this us thats gained control of a zone?
if (superPeer.ClientID == m_clientID)
{
SuperPeer peer = new SuperPeer(this, superPeer.ID, superPeer.ZoneID);
peer.Initialize();
m_superPeers.Add(peer);
Logger.Info("Gained control of zone #{0} as SuperPeer #{0}", LoggerVerboseLevel.High, zone.ID, superPeer.ID);
}
foreach (SuperPeer peer in m_superPeers)
{
peer.SuperPeerGainedControl(zone, superPeer);
}
}
/// <summary>
/// Simulates movement of this client around the map.
/// </summary>
private void SimulateMovement()
{
bool forceMovementUpdate = (m_service.CurrentZone != null &&
m_lastMovementZone != null &&
m_service.CurrentZone.ID != m_lastMovementZone.ID &&
m_service.ConnectedToAllZoneSuperPeers(m_service.CurrentZone) == true ||
m_service.SuperPeersDirty == true);
if (m_playerControlled == true)
{
int keyLeft = (Keyboard.GetKeyStates(System.Windows.Input.Key.Left) & KeyStates.Down) > 0 ? 1 : 0;
int keyRight = (Keyboard.GetKeyStates(System.Windows.Input.Key.Right) & KeyStates.Down) > 0 ? 1 : 0;
int keyUp = (Keyboard.GetKeyStates(System.Windows.Input.Key.Up) & KeyStates.Down) > 0 ? 1 : 0;
int keyDown = (Keyboard.GetKeyStates(System.Windows.Input.Key.Down) & KeyStates.Down) > 0 ? 1 : 0;
if ((keyLeft != m_keyLeft || keyRight != m_keyRight || keyUp != m_keyUp || keyDown != m_keyDown) ||
forceMovementUpdate == true)
{
m_lastMovementZone = m_service.CurrentZone;
m_service.SetMovementVector(keyRight - keyLeft, keyDown - keyUp, m_settings.ClientMovementSpeedMax);
}
m_keyLeft = keyLeft;
m_keyRight = keyRight;
m_keyUp = keyUp;
m_keyDown = keyDown;
}
else
{
if (Environment.TickCount > m_lastDirectionChange || forceMovementUpdate == true)
{
m_lastDirectionChange = Environment.TickCount + (int)(m_settings.ClientDirectionChangeTimeMin + (RandomHelper.RandomInstance.NextDouble() * (m_settings.ClientDirectionChangeTimeMax - m_settings.ClientDirectionChangeTimeMin)));
m_direction = RandomHelper.RandomInstance.Next(0, 4);
m_speed = (float)(m_settings.ClientMovementSpeedMin + (RandomHelper.RandomInstance.NextDouble() * (m_settings.ClientMovementSpeedMax - m_settings.ClientMovementSpeedMin)));
m_lastMovementZone = m_service.CurrentZone;
switch (m_direction)
{
case 0: // Left
{
m_service.SetMovementVector(-1, 0, m_speed);
break;
}
case 1: // Right
{
m_service.SetMovementVector(1, 0, m_speed);
break;
}
case 2: // Up
{
m_service.SetMovementVector(0, -1, m_speed);
break;
}
case 3: // Down
{
m_service.SetMovementVector(0, 1, m_speed);
break;
}
}
}
}
}
/// <summary>
/// Invoked when a super-peer lose's control over a zone.
/// </summary>
/// <param name="zone">Zone that super peer lost control of.</param>
/// <param name="superPeer">Super peer that lost control.</param>
private void SuperPeerLostControl(Zone zone, ZoneSuperPeer superPeer)
{
// Is this us thats gained control of a zone?
if (superPeer.ClientID == m_clientID)
{
foreach (SuperPeer peer in m_superPeers.ToList())
{
if (peer.ID == superPeer.ID)
{
peer.Deinitialize();
break;
}
}
Logger.Info("Lost control of zone #{0} as SuperPeer #{0}", LoggerVerboseLevel.High, superPeer.ZoneID, superPeer.ID);
}
// Is this a superpeer for the zone we are inside of?
// If so, any superpeers we are hosting, should start serializing now!
foreach (SuperPeer peer in m_superPeers)
{
peer.SuperPeerLostControl(zone, superPeer);
}
}
/// <summary>
/// Adds the given zone to this zone grid.
/// </summary>
/// <param name="zone">Zone to add.</param>
public void AddZone(Zone zone)
{
// Add to zones dictionary.
if (m_zones.ContainsKey(zone.ID))
{
m_zones.Remove(zone.ID);
}
m_zones.Add(zone.ID, zone);
// Add to all zones dictionary.
if (m_allZones.ContainsKey(zone.ID))
{
m_allZones.Remove(zone.ID);
}
m_allZones.Add(zone.ID, zone);
// Link up zones.
int lowest_id = -1;
foreach (int key in m_zones.Keys)
{
Zone z = m_zones[key];
if (lowest_id == -1 || z.ID < lowest_id)
{
lowest_id = z.ID;
}
if (z.ChildZone1ID != 0)
{
if (m_zones.ContainsKey(z.ChildZone1ID))
{
z.ChildZone1 = m_zones[z.ChildZone1ID];
}
else
{
z.ChildZone1 = z;
}
}
if (z.ChildZone2ID != 0)
{
if (m_zones.ContainsKey(z.ChildZone2ID))
{
z.ChildZone2 = m_zones[z.ChildZone2ID];
}
else
{
z.ChildZone2 = z;
}
}
if (z.ParentID != 0)
{
if (m_zones.ContainsKey(z.ParentID))
{
z.Parent = m_zones[z.ParentID];
}
else
{
z.Parent = z;
}
}
}
// Store root zone.
if (lowest_id != -1)
{
if (m_zones.ContainsKey(lowest_id))
{
m_rootZone = m_zones[lowest_id];
}
else
{
m_rootZone = null;
}
}
else
{
m_rootZone = null;
}
}
/// <summary>
/// Sends a packet to all super peers looking after a zone and waits for their replies.
/// </summary>
/// <param name="zone">Zone to send packet to.</param>
/// <param name="packet">Packet to send.</param>
private void SendPacketToZoneSuperPeersWaitForReply(Zone zone, SuperPeerPacket packet)
{
foreach (ZoneSuperPeer peer in zone.SuperPeers)
{
if (!RegisteredToZoneSuperPeer(peer))
{
continue;
}
foreach (ClientToSuperPeerConnection c in m_superPeerConnections)
{
if (c.Connection.Connected == true &&
c.Connection.ConnectionEstablished == true &&
c.Connection.IPAddress == peer.ClientIPAddress &&
c.Connection.Port == peer.ClientListenPort)
{
packet.SuperPeerID = peer.ID;
c.Connection.SendPacketAndWaitAsync(packet).Wait();
}
}
}
}
/// <summary>
/// Calculates the bounding rectangle of the given zone based on a given world size and position.
/// </summary>
/// <param name="zone">Zone to calculate bounds for.</param>
/// <param name="world_x">X position of world.</param>
/// <param name="world_y">Y position of world.</param>
/// <param name="world_w">Width of world.</param>
/// <param name="world_h">Height of world.</param>
/// <param name="zone_x">Resulting zone boundry X position.</param>
/// <param name="zone_y">Resulting zone boundry Y position.</param>
/// <param name="zone_w">Resulting zone boundry width.</param>
/// <param name="zone_h">Resulting zone boundry height.</param>
public void CalculateZoneBounds(Zone zone, int world_x, int world_y, int world_w, int world_h, out int zone_x, out int zone_y, out int zone_w, out int zone_h)
{
zone_x = 0;
zone_y = 0;
zone_w = 0;
zone_h = 0;
CalculateZoneBoundsInternal(m_rootZone, zone, world_x, world_y, world_w, world_h, out zone_x, out zone_y, out zone_w, out zone_h);
}
/// <summary>
/// Registers with all super peers that are relevant to the new zone the player is moving ot.
/// </summary>
/// <param name="zone">Zone that player is moving to.</param>
private void RegisterWithNewSuperPeers(Zone zone)
{
if (zone.SuperPeers.Count < m_settings.ZoneSuperPeerCount)
{
return;
}
foreach (ZoneSuperPeer peer in zone.SuperPeers)
{
bool alreadyRegistered = false;
bool alreadyRegistering = false;
foreach (ZoneSuperPeer target_peer in m_registeredSuperPeers)
{
if (peer.ID == target_peer.ID)
{
alreadyRegistered = true;
break;
}
}
foreach (ZoneSuperPeer target_peer in m_registeringSuperPeers)
{
if (peer.ID == target_peer.ID)
{
alreadyRegistering = true;
break;
}
}
if (alreadyRegistered == false && alreadyRegistering == false)
{
bool found = false;
// Send register packets to the super peer.
foreach (ClientToSuperPeerConnection connection in m_superPeerConnections)
{
if (connection.Connection.Connected == true &&
connection.Connection.ConnectionEstablished == true &&
connection.Connection.IPAddress == peer.ClientIPAddress &&
connection.Connection.Port == peer.ClientListenPort)
{
Logger.Info("Registering with SuperPeer #{0}.", LoggerVerboseLevel.High, peer.ID);
SuperPeerRegisterPacket packet = new SuperPeerRegisterPacket();
packet.SuperPeerID = peer.ID;
packet.ClientID = m_clientID;
connection.Connection.SendPacket(packet);
found = true;
}
}
// Add to registering list.
if (found == true)
{
m_registeringSuperPeers.Add(peer);
m_superPeersDirty = true;
m_registerEventList.Add("Registering with " + peer.ID);
}
}
}
}
/// <summary>
/// Converts a packet representation of this zone grid into the zone grid.
/// </summary>
/// <param name="packet">Packet to convert.</param>
public void FromPacket(ZoneGridPacket packet)
{
List<ZoneSuperPeer> old_superpeers = new List<ZoneSuperPeer>();
List<ZoneSuperPeer> new_superpeers = new List<ZoneSuperPeer>();
List<Zone> old_zones = new List<Zone>(m_zones.Values);
// Make a full list of all super peers that currently exist.
foreach (Zone zone in m_zones.Values)
{
old_superpeers.AddRange(zone.SuperPeers);
}
// Dispose of general stuff.
m_zones.Clear();
m_gained_superpeers.Clear();
m_lost_superpeers.Clear();
// Rebuild the zone grid.
foreach (ZoneGridPacketZoneInfo zoneInfo in packet.Zones)
{
Zone zone = null;
foreach (Zone z in old_zones)
{
if (z.ID == zoneInfo.ID)
{
zone = z;
zone.ParentID = zoneInfo.ParentID;
zone.ChildZone1ID = zoneInfo.ChildZone1ID;
zone.ChildZone2ID = zoneInfo.ChildZone2ID;
zone.Parent = null;
zone.ChildZone1 = null;
zone.ChildZone2 = null;
zone.SplitOrientation = zoneInfo.SplitOrientation;
break;
}
}
if (zone == null)
{
zone = new Zone(zoneInfo.ID, zoneInfo.ParentID, zoneInfo.ChildZone1ID, zoneInfo.ChildZone2ID, zoneInfo.SplitOrientation);
}
List<ZoneSuperPeer> oldZoneSuperPeers = new List<ZoneSuperPeer>(zone.SuperPeers);
zone.SuperPeers.Clear();
foreach (ZoneGridPacketSuperPeerInfo peerInfo in zoneInfo.SuperPeers)
{
ZoneSuperPeer peer = null;
foreach (ZoneSuperPeer p in oldZoneSuperPeers)
{
if (p.ID == peerInfo.ID)
{
peer = p;
break;
}
}
if (peer == null)
{
peer = new ZoneSuperPeer();
}
peer.ID = peerInfo.ID;
peer.ZoneID = peerInfo.ZoneID;
peer.ClientID = peerInfo.ClientID;
peer.ClientIPAddress = peerInfo.ClientIPAddress;
peer.ClientListenPort = peerInfo.ClientListenPort;
zone.SuperPeers.Add(peer);
}
new_superpeers.AddRange(zone.SuperPeers);
AddZone(zone);
}
// Calculate which super-peers are new.
foreach (ZoneSuperPeer peer in old_superpeers)
{
bool found = false;
foreach (ZoneSuperPeer peer2 in new_superpeers)
{
if (peer.ZoneID == peer2.ZoneID &&
peer.ClientID == peer2.ClientID)
{
found = true;
break;
}
}
if (found == false)
{
m_lost_superpeers.Add(peer);
}
}
// Calculate which super-peers have been list.
foreach (ZoneSuperPeer peer in new_superpeers)
{
bool found = false;
foreach (ZoneSuperPeer peer2 in old_superpeers)
{
if (peer.ZoneID == peer2.ZoneID &&
peer.ClientID == peer2.ClientID)
{
found = true;
break;
}
}
if (found == false)
{
m_gained_superpeers.Add(peer);
}
}
}
/// <summary>
/// Updates our connection to the zone we are currently inside of.
/// </summary>
private void UpdateZoneConnection()
{
if (m_account == null)
{
return;
}
// Work out what zone we are currently inside.
Zone zone = m_zoneGrid.GetZoneByPosition(0, 0, m_settings.WorldWidth, m_settings.WorldHeight, (int)m_account.PeristentState.X, (int)m_account.PeristentState.Y);
if (zone == null)
{
return;
}
// Different from the zone we are currently in?
if (m_currentZone == null || zone.ID != m_currentZone.ID)
{
// Send a message to arbitrator saying we have changed zone.
ChangeZonePacket packet = new ChangeZonePacket();
packet.ZoneID = zone.ID;
m_arbitratorConnection.SendPacket(packet);
Logger.Info("Changed zone from {0} to {1}.", LoggerVerboseLevel.High, m_currentZone == null ? "null" : m_currentZone.ID.ToString(), zone.ID);
// Count up how many super peers we were connected to when we switched. This is important
// for unregistering, as if we are not connected to enough we can't persist our position.
if (m_registeredSuperPeers.Count > 0)
{
m_changeZoneSuperPeerCount = (m_registeredSuperPeers.Count);// + m_registeringSuperPeers.Count);
}
else
{
m_changeZoneSuperPeerCount = 0;
}
// Store the zone we are now in.
m_currentZone = zone;
}
// Unregister with superpeers we are no longer intrested in.
UnregisterWithOldSuperPeers(zone);
// Register with superpeers we are intrested in, but only
// do this after we have unregistered all superpeers we are not intrested in.
if (m_unregisteringSuperPeers.Count <= 0)
{
RegisterWithNewSuperPeers(zone);
}
// Are we not connected to zone super peers?
ConnectToNewSuperPeers(zone);
// Prune dead connections.
PruneDeadConnections();
}
/// <summary>
/// Invoked when a super-peer gains control over a zone.
/// </summary>
/// <param name="zone">Zone that super peer gained control of.</param>
/// <param name="superPeer">Super peer that gained control.</param>
internal void SuperPeerGainedControl(Zone zone, ZoneSuperPeer superPeer)
{
}
