Add onClientCommand event to cancel client-side commands

Client/mods/deathmatch/ClientCommands.cpp

@@ -45,6 +45,18 @@ bool COMMAND_Executed(const char* szCommand, const char* szArguments, bool bHand
             }
         }
 
+        // Give scripts a chance to cancel this command before processing
+        CClientPlayer* localPlayer = g_pClientGame->GetLocalPlayer();
+        if (localPlayer)
+        {
+            CLuaArguments cancelArguments;
+            cancelArguments.PushString(szCommandBufferPointer);
+            if (!localPlayer->CallEvent("onClientCommand", cancelArguments, true))
+            {
+                return true;
+            }
+        }
+
         // Toss them together so we can send it to the server
         SString strClumpedCommand;
         if (szArguments && szArguments[0])
@@ -60,7 +72,6 @@ bool COMMAND_Executed(const char* szCommand, const char* szArguments, bool bHand
         g_pClientGame->GetRegisteredCommands()->ProcessCommand(szCommandBufferPointer, szArguments);
 
         // Call the onClientConsole event
-        CClientPlayer* localPlayer = g_pClientGame->GetLocalPlayer();
 
         if (localPlayer != nullptr)
         {

Client/mods/deathmatch/logic/CClientGame.cpp

@@ -2722,6 +2722,7 @@ void CClientGame::AddBuiltInEvents()
     // Console events
     m_Events.AddEvent("onClientConsole", "text", NULL, false);
     m_Events.AddEvent("onClientCoreCommand", "command", NULL, false);
+    m_Events.AddEvent("onClientCommand", "command", NULL, false);
 
     // Chat events
     m_Events.AddEvent("onClientChatMessage", "text, r, g, b, messageType", NULL, false);