Add SourceTV_SetClientTVTitle native

Change the stream title for a single client.
Changing tv_title resets this.

natives.cpp

@@ -890,6 +890,61 @@ static cell_t Native_PrintToConsole(IPluginContext *pContext, const cell_t *para
 	return 0;
 }
 
+
+// native SourceTV_SetClientTVTitle(client, const String:format[], any:...);
+static cell_t Native_SetClientTVTitle(IPluginContext *pContext, const cell_t *params)
+{
+	if (hltvserver == nullptr)
+		return 0;
+
+	cell_t client = params[1];
+	if (client < 1 || client > hltvserver->GetBaseServer()->GetClientCount())
+	{
+		pContext->ReportError("Invalid spectator client index %d.", client);
+		return 0;
+	}
+
+	HLTVClientWrapper *pClient = hltvserver->GetClient(client);
+	if (!pClient->IsConnected())
+	{
+		pContext->ReportError("Client %d is not connected.", client);
+		return 0;
+	}
+
+	char buffer[1024];
+	size_t len;
+	{
+		DetectExceptions eh(pContext);
+		len = smutils->FormatString(buffer, sizeof(buffer), pContext, params, 2);
+		if (eh.HasException())
+			return 0;
+	}
+
+	IGameEvent *msg = gameevents->CreateEvent("hltv_title", true);
+	if (!msg)
+		return 0;
+
+#if SOURCE_ENGINE == SE_CSGO
+	wchar_t wBuffer[1024];
+	V_UTF8ToUnicode(buffer, wBuffer, sizeof(wBuffer));
+	msg->SetWString("text", wBuffer);
+#else
+	msg->SetString("text", buffer);
+#endif
+
+	if (g_bHasClientFireGameEventOffset)
+	{
+		void *pGameClient = pClient->BaseClient();
+		// The IClient vtable is +4 from the CBaseClient vtable due to multiple inheritance.
+		pGameClient = (void *)((intptr_t)pGameClient - 4);
+		SH_MCALL(pGameClient, CBaseClient_FireGameEvent)(msg);
+	}
+
+	gameevents->FreeEvent(msg);
+
+	return 0;
+}
+
 const sp_nativeinfo_t sourcetv_natives[] =
 {
 	{ "SourceTV_GetServerInstanceCount", Native_GetServerInstanceCount },
@@ -928,5 +983,6 @@ const sp_nativeinfo_t sourcetv_natives[] =
 	{ "SourceTV_KickClient", Native_KickClient },
 	{ "SourceTV_PrintToChat", Native_PrintToChat },
 	{ "SourceTV_PrintToConsole", Native_PrintToConsole },
+	{ "SourceTV_SetClientTVTitle", Native_SetClientTVTitle },
 	{ NULL, NULL },
 };

sourcetv_test.sp

@@ -36,6 +36,7 @@ public OnPluginStart()
 	RegConsoleCmd("sm_speckick", Cmd_KickClient);
 	RegConsoleCmd("sm_specchatone", Cmd_PrintToChat);
 	RegConsoleCmd("sm_specconsoleone", Cmd_PrintToConsole);
+	RegConsoleCmd("sm_spectitle", Cmd_SetTVTitle);
 }
 
 public SourceTV_OnStartRecording(instance, const String:filename[])
@@ -471,4 +472,24 @@ public Action:Cmd_PrintToConsole(client, args)
 	SourceTV_PrintToConsole(iTarget, "%s", sMsg);
 	ReplyToCommand(client, "SourceTV sending console message to spectator %d: %s", iTarget, sMsg);
 	return Plugin_Handled;
+}
+
+public Action:Cmd_SetTVTitle(client, args)
+{
+	if (args < 2)
+	{
+		ReplyToCommand(client, "Usage: sm_spectitle <index> <title>");
+		return Plugin_Handled;
+	}
+	
+	new String:sIndex[16], String:sMsg[1024];
+	GetCmdArg(1, sIndex, sizeof(sIndex));
+	StripQuotes(sIndex);
+	GetCmdArg(2, sMsg, sizeof(sMsg));
+	StripQuotes(sMsg);
+	
+	new iTarget = StringToInt(sIndex);
+	SourceTV_SetClientTVTitle(iTarget, "%s", sMsg);
+	ReplyToCommand(client, "SourceTV set stream title of spectator %d to %s", iTarget, sMsg);
+	return Plugin_Handled;
 }

sourcetvmanager.inc

@@ -415,6 +415,19 @@ native SourceTV_PrintToChat(client, const String:format[], any:...);
  */
 native SourceTV_PrintToConsole(client, const String:format[], any:...);
 
+/**
+ * Change the stream title only for one spectator.
+ * This is like tv_title but for a single client.
+ * Gets overwritten when tv_title gets changed.
+ * 
+ * @param client	The spectator client index.
+ * @param format	The format string.
+ * @param ...	Variable number of format string arguments.
+ * @noreturn
+ * @error	Invalid client index or not connected.
+ */
+native SourceTV_SetClientTVTitle(client, const String:format[], any:...);
+
 /**
  * Called when a spectator wants to connect to the SourceTV server.
  * This is called before any other validation has happened.
@@ -543,5 +556,6 @@ public __ext_stvmngr_SetNTVOptional()
 	MarkNativeAsOptional("SourceTV_KickClient");
 	MarkNativeAsOptional("SourceTV_PrintToChat");
 	MarkNativeAsOptional("SourceTV_PrintToConsole");
+	MarkNativeAsOptional("SourceTV_SetClientTVTitle");
 }
 #endif