Kick clients who don't have the map when the host force-starts.

OpenRA.Game/Network/Session.cs

@@ -81,7 +81,7 @@ namespace OpenRA.Network
 			get { return Clients.Count(c => c.Bot == null) == 1; }
 		}
 
-		public enum ClientState { NotReady, Ready, Disconnected = 1000 }
+		public enum ClientState { NotReady, Invalid, Ready, Disconnected = 1000 }
 
 		public class Client
 		{
@@ -93,13 +93,14 @@ namespace OpenRA.Network
 			public int SpawnPoint;
 			public string Name;
 			public string IpAddress;
-			public ClientState State;
+			public ClientState State = ClientState.Invalid;
 			public int Team;
 			public string Slot;	// slot ID, or null for observer
 			public string Bot; // Bot type, null for real clients
 			public int BotControllerClientIndex; // who added the bot to the slot
 			public bool IsAdmin;
 			public bool IsReady { get { return State == ClientState.Ready; } }
+			public bool IsInvalid { get { return State == ClientState.Invalid; } }
 			public bool IsObserver { get { return Slot == null; } }
 			public int Latency = -1;
 			public int LatencyJitter = -1;

OpenRA.Game/Network/UnitOrders.cs

@@ -130,7 +130,7 @@ namespace OpenRA.Network
 							Country = "random",
 							SpawnPoint = 0,
 							Team = 0,
-							State = Session.ClientState.NotReady
+							State = Session.ClientState.Invalid
 						};
 
 						var response = new HandshakeResponse()

OpenRA.Game/Server/Server.cs

@@ -272,7 +272,7 @@ namespace OpenRA.Server
 					Country = "random",
 					SpawnPoint = 0,
 					Team = 0,
-					State = Session.ClientState.NotReady,
+					State = Session.ClientState.Invalid,
 					IsAdmin = !LobbyInfo.Clients.Any(c1 => c1.IsAdmin)
 				};
 
@@ -572,19 +572,31 @@ namespace OpenRA.Server
 
 		public void StartGame()
 		{
-			State = ServerState.GameStarted;
 			listener.Stop();
 
 			Console.WriteLine("Game started");
 
-			foreach (var c in Conns)
-				foreach (var d in Conns)
-					DispatchOrdersToClient(c, d.PlayerIndex, 0x7FFFFFFF, new byte[] { 0xBF });
-
 			// Drop any unvalidated clients
 			foreach (var c in PreConns.ToArray())
 				DropClient(c);
 
+			// Drop any players who are not ready
+			foreach (var c in Conns.ToArray())
+			{
+				if (GetClient(c).IsInvalid)
+				{
+					SendOrderTo(c, "ServerError", "You have been kicked from the server");
+					DropClient(c);
+				}
+			}
+
+			SyncLobbyInfo();
+			State = ServerState.GameStarted;
+
+			foreach (var c in Conns)
+				foreach (var d in Conns)
+					DispatchOrdersToClient(c, d.PlayerIndex, 0x7FFFFFFF, new byte[] { 0xBF });
+
 			DispatchOrders(null, 0,
 				new ServerOrder("StartGame", "").Serialize());