Introduce sub-protocols

src/client/component/getinfo.cpp

@@ -110,6 +110,7 @@ namespace getinfo
 				info.set("bots", std::to_string(get_bot_count()));
 				info.set("sv_maxclients", std::to_string(get_max_client_count()));
 				info.set("protocol", std::to_string(PROTOCOL));
+				info.set("sub_protocol", std::to_string(SUB_PROTOCOL));
 				info.set("playmode", std::to_string(game::Com_SessionMode_GetMode()));
 				info.set("gamemode", std::to_string(Com_SessionMode_GetGameMode()));
 				info.set("sv_running", std::to_string(game::is_server_running()));

src/client/component/party.cpp

@@ -157,6 +157,14 @@ namespace party
 				return;
 			}
 
+			const auto sub_protocol = atoi(info.get("sub_protocol").data());
+			if (sub_protocol != SUB_PROTOCOL && sub_protocol != (SUB_PROTOCOL - 1))
+			{
+				const auto str = "Invalid sub-protocol.";
+				printf("%s\n", str);
+				return;
+			}
+
 			const auto gamename = info.get("gamename");
 			if (gamename != "T7"s)
 			{

src/client/game/structs.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #define PROTOCOL 4
+#define SUB_PROTOCOL 1
 
 #ifdef __cplusplus
 namespace game

src/client/steam/interfaces/matchmaking_servers.cpp

@@ -31,6 +31,8 @@ namespace steam
 		gameserveritem_t create_server_item(const game::netadr_t& address, const ::utils::info_string& info,
 		                                    const uint32_t ping, const bool success)
 		{
+			const auto sub_protocol = atoi(info.get("sub_protocol").data());
+
 			gameserveritem_t server{};
 			server.m_NetAdr.m_usConnectionPort = address.port;
 			server.m_NetAdr.m_usQueryPort = address.port;
@@ -41,7 +43,7 @@ namespace steam
 			::utils::string::copy(server.m_szGameDir, "");
 			::utils::string::copy(server.m_szMap, info.get("mapname").data());
 			::utils::string::copy(server.m_szGameDescription, info.get("description").data());
-			server.m_nAppID = 311210;
+			server.m_nAppID = (sub_protocol == SUB_PROTOCOL || sub_protocol == (SUB_PROTOCOL - 1)) ? 311210 : 0;
 			server.m_nPlayers = atoi(info.get("clients").data());
 			server.m_nMaxPlayers = atoi(info.get("sv_maxclients").data());
 			server.m_nBotPlayers = atoi(info.get("bots").data());
@@ -231,8 +233,7 @@ namespace steam
 		}
 
 		static thread_local gameserveritem_t server_item{};
-		return queried_servers.access<gameserveritem_t*>([iServer](const servers& s) -> gameserveritem_t*
+		return queried_servers.access<gameserveritem_t*>([iServer](const servers& s) -> gameserveritem_t* {
-		{
 			if (iServer < 0 || static_cast<size_t>(iServer) >= s.size())
 			{
 				return nullptr;