From f0b2f2a6595c97eb0c25a896aa11b5e61961516c Mon Sep 17 00:00:00 2001
From: ViktorLjung <ljunga_93@hotmail.com>
Date: Tue, 22 Apr 2014 17:18:54 +0200
Subject: [PATCH] Barebones entity component commit events

Conflicts:
	src/GameWorld.cpp
---
 src/GameWorld.cpp | 10 ++++++++++
 src/System.h      |  2 ++
 src/World.cpp     |  9 +++++++++
 src/World.h       |  2 ++
 4 files changed, 23 insertions(+)

diff --git a/src/GameWorld.cpp b/src/GameWorld.cpp
index ee282f2..7da4e68 100755
--- a/src/GameWorld.cpp
+++ b/src/GameWorld.cpp
@@ -16,6 +16,7 @@ void GameWorld::Initialize()
 		cameraComp->FarClip = 2000.f;
 		AddComponent(camera, "Input");
 		auto freeSteering = AddComponent<Components::FreeSteering>(camera, "FreeSteering");
+		CommitEntity(camera);
 	}
 
 
@@ -35,6 +36,8 @@ void GameWorld::Initialize()
 		auto physics = AddComponent<Components::Physics>(ground, "Physics");
 		physics->Mass = 10;
 		physics->Static = true;
+
+		CommitEntity(ground);
 	}
 
 
@@ -66,6 +69,7 @@ void GameWorld::Initialize()
 			Wheel->Mass = 10;
 			Wheel->Radius = 0.6f;
 			Wheel->Steering = true;
+			CommitEntity(ent);
 		}
 		{
 			// Front Left Wheel
@@ -78,6 +82,7 @@ void GameWorld::Initialize()
 			Wheel->Mass = 10;
 			Wheel->Radius = 0.6f;
 			Wheel->Steering = true;
+			CommitEntity(ent);
 		}
 		{
 			// Back Right Wheel
@@ -90,6 +95,7 @@ void GameWorld::Initialize()
 			Wheel->Mass = 10;
 			Wheel->Radius = 0.6f;
 			Wheel->Steering = false;
+			CommitEntity(ent);
 		}
 		{
 			// Back Left Wheel
@@ -102,8 +108,10 @@ void GameWorld::Initialize()
 			Wheel->Mass = 10;
 			Wheel->Radius = 0.6f;
 			Wheel->Steering = false;
+			CommitEntity(ent);
 		}
 
+		CommitEntity(car);
 	}
 
 
@@ -123,6 +131,7 @@ void GameWorld::Initialize()
 		box->Width = 5.f;
 		box->Height = 5.f;
 		box->Depth = 5.f;
+		CommitEntity(ball);
 	}
 
 	{
@@ -132,6 +141,7 @@ void GameWorld::Initialize()
 		emitter->Path = "Sounds/korvring.wav";
 		emitter->Loop = true;
 		GetSystem<Systems::SoundSystem>("SoundSystem")->PlaySound(emitter);
+		CommitEntity(entity);
 	}
 }
 
diff --git a/src/System.h b/src/System.h
index cbe9cb8..d433871 100755
--- a/src/System.h
+++ b/src/System.h
@@ -24,6 +24,8 @@ 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;
diff --git a/src/World.cpp b/src/World.cpp
index d7a8ee4..49a5c3b 100755
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -147,6 +147,15 @@ 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));
diff --git a/src/World.h b/src/World.h
index bae324e..0d15b89 100755
--- a/src/World.h
+++ b/src/World.h
@@ -64,6 +64,8 @@ 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);*/