Barebones entity component commit events

src/GameWorld.cpp

@@ -20,6 +20,7 @@ void GameWorld::Initialize()
 		cameraComp->FarClip = 2000.f;
 		AddComponent(camera, "Input");
 		auto freeSteering = AddComponent<Components::FreeSteering>(camera, "FreeSteering");
+		CommitEntity(camera);
 	}
 
 
@@ -38,6 +39,7 @@ void GameWorld::Initialize()
 
 		auto physics = AddComponent<Components::Physics>(ground, "Physics");
 		physics->Mass = 10;
+		CommitEntity(ground);
 	}
 
 	{
@@ -47,6 +49,7 @@ void GameWorld::Initialize()
 
 		auto model = AddComponent<Components::Model>(TankTest, "Model");
 		model->ModelFile = "Models/Placeholders/tank/Chassi.obj";
+		CommitEntity(TankTest);
 	}
 
 	for(int i = 0; i < 83; i++)
@@ -65,6 +68,7 @@ void GameWorld::Initialize()
 
 		auto model = AddComponent<Components::Model>(light, "Model");
 		model->ModelFile = "Models/Placeholders/PhysicsTest/PointLight.obj";
+		CommitEntity(light);
 	}
 
 	for(int i = 0; i < 500; i++)
@@ -80,6 +84,7 @@ void GameWorld::Initialize()
 		sphere->Radius = 0.5;
 		auto physics = AddComponent<Components::Physics>(ball, "Physics");
 		physics->Mass = 1;
+		CommitEntity(ball);
 	}
 
 	/*{

src/System.h

@@ -28,6 +28,8 @@ public:
 	virtual void OnComponentCreated(std::string type, std::shared_ptr<Component> component) { }
 	// Called when a component is removed
 	virtual void OnComponentRemoved(std::string type, Component* component) { }
+	// Called when components are committed to an entity
+	virtual void OnEntityCommit(EntityID entity) { }
 
 protected:
 	World* m_World;

src/World.cpp

@@ -148,6 +148,15 @@ std::shared_ptr<Component> World::AddComponent(EntityID entity, std::string comp
 	return AddComponent<Component>(entity, componentType);
 }
 
+void World::CommitEntity(EntityID entity)
+{
+	for (auto pair : m_Systems)
+	{
+		auto system = pair.second;
+		system->OnEntityCommit(entity);
+	}
+}
+
 void World::AddSystem(std::string systemType)
 {
 	m_Systems[systemType] = std::shared_ptr<System>(m_SystemFactory.Create(systemType));

src/World.h

@@ -63,6 +63,8 @@ public:
 	std::shared_ptr<Component> AddComponent(EntityID entity, std::string componentType);
 	template <class T>
 	T* GetComponent(EntityID entity, std::string componentType);
+	// Triggers commit events in systems
+	void CommitEntity(EntityID entity);
 
 	/*std::vector<EntityID> GetEntityChildren(EntityID entity);*/