Changed System to take World through constructor and store it instead, cause it makes more sense.

include/Engine/Core/SystemPipeline.h

@@ -9,9 +9,11 @@
 class SystemPipeline
 {
 public:
-    SystemPipeline(EventBroker* eventBroker)
-        : m_EventBroker(eventBroker)
+    SystemPipeline(World* world, EventBroker* eventBroker)
+        : m_World(world)
+        , m_EventBroker(eventBroker)
     { }
+
     ~SystemPipeline()
     {
         for (UnorderedSystems& group : m_OrderedSystemGroups) {
@@ -29,7 +31,7 @@ public:
             m_OrderedSystemGroups.resize(updateOrderLevel + 1);
         }
         UnorderedSystems& group = m_OrderedSystemGroups[updateOrderLevel];
-        System* system = new T(m_EventBroker, args...);
+        System* system = new T(m_World, m_EventBroker, args...);
         group.Systems[typeid(T).name()] = system;
 
         PureSystem* pureSystem = dynamic_cast<PureSystem*>(system);
@@ -47,7 +49,7 @@ public:
         }
     }
 
-    void Update(World* world, double dt)
+    void Update(double dt)
     {
         for (UnorderedSystems& group : m_OrderedSystemGroups) {
             // Process events
@@ -57,18 +59,18 @@ public:
 
             // Update
             for (auto& system : group.ImpureSystems) {
-                system->Update(world, dt);
+                system->Update(dt);
             }
             for (auto& pair : group.PureSystems) {
                 const std::string& componentName = pair.first;
                 auto& systems = pair.second;
-                const ComponentPool* pool = world->GetComponents(componentName);
+                const ComponentPool* pool = m_World->GetComponents(componentName);
                 if (pool == nullptr) {
                     continue;
                 }
                 for (auto& component : *pool) {
                     for (auto& system : systems) {
-                        system->UpdateComponent(world, EntityWrapper(world, component.EntityID), component, dt);
+                        system->UpdateComponent(EntityWrapper(m_World, component.EntityID), component, dt);
                     }
                 }
             }
@@ -76,7 +78,9 @@ public:
     }
 
 private:
+    World* m_World;
     EventBroker* m_EventBroker;
+
     struct UnorderedSystems
     {
         std::map<std::string, System*> Systems;