Internet cycle fix

Fixed not checking packet size in internet cycle

Author: kolyaka32

src/cycles/serverGame.cpp

@@ -80,12 +80,14 @@ void ServerGameCycle::update(App& _app) {
     // Getting internet messages
     switch (connection.updateMessages()) {
     case ConnectionCode::GameTurn:
-        #if CHECK_CORRECTION
-        SDL_Log("Turn of opponent player: from %u to %u", connection.lastPacket->getData<Uint8>(2), connection.lastPacket->getData<Uint8>(3));
-        #endif
-        field.clickMultiplayerOpponent(connection.lastPacket->getData<Uint8>(2), connection.lastPacket->getData<Uint8>(3));
-        // Making sound
-        //_app.sounds.play(SND_RESET);
+        if (connection.lastPacket->isBytesAvaliable(4)) {
+            #if CHECK_CORRECTION
+            SDL_Log("Turn of opponent player: from %u to %u", connection.lastPacket->getData<Uint8>(2), connection.lastPacket->getData<Uint8>(3));
+            #endif
+            field.clickMultiplayerOpponent(connection.lastPacket->getData<Uint8>(2), connection.lastPacket->getData<Uint8>(3));
+            // Making sound
+            //_app.sounds.play(SND_RESET);
+        }
         return;
     }
 }