Fix crash in normal race (RaceEventManager NULL).

src/items/item_manager.cpp

@@ -324,7 +324,7 @@ void  ItemManager::checkItemHit(AbstractKart* kart)
         if((*i)->hitKart(kart->getXYZ(), kart))
         {
             // if we're not playing online, pick the item.
-            if (!RaceEventManager::getInstance()->isRunning())
+            if (!NetworkConfig::get()->isNetworking())
                 collectedItem(*i, kart);
             else if (NetworkConfig::get()->isServer())
             {

src/karts/kart.cpp

@@ -67,7 +67,6 @@
 #include "modes/soccer_world.hpp"
 #include "modes/world.hpp"
 #include "network/network_config.hpp"
-#include "network/race_event_manager.hpp"
 #include "network/rewind_manager.hpp"
 #include "physics/btKart.hpp"
 #include "physics/btKartRaycast.hpp"
@@ -1477,8 +1476,8 @@ void Kart::update(float dt)
     // Check if any item was hit.
     // check it if we're not in a network world, or if we're on the server
     // (when network mode is on)
-    if (!RaceEventManager::getInstance()->isRunning() ||
-        NetworkConfig::get()->isServer())
+    if(!NetworkConfig::get()->isNetworking() ||
+        NetworkConfig::get()->isServer()       )
         ItemManager::get()->checkItemHit(this);
 
     static video::SColor pink(255, 255, 133, 253);

src/main_loop.cpp

@@ -141,7 +141,8 @@ float MainLoop::getLimitedDt()
 void MainLoop::updateRace(float dt)
 {
     // The race event manager will update world in case of an online race
-    if (RaceEventManager::getInstance()->isRunning())
+    if ( RaceEventManager::getInstance() && 
+         RaceEventManager::getInstance()->isRunning() )
         RaceEventManager::getInstance()->update(dt);
     else
         World::getWorld()->updateWorld(dt);