Initial structure

include/Core/System.h

@@ -0,0 +1,67 @@
+/*
+	This file is part of Daydream Engine.
+	Copyright 2014 Adam Byléhn, Tobias Dahl, Simon Holmberg, Viktor Ljung
+	
+	Daydream Engine is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+	
+	Daydream Engine is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+	
+	You should have received a copy of the GNU Lesser General Public License
+	along with Daydream Engine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef System_h__
+#define System_h__
+
+#include "Util/Factory.h"
+#include "Entity.h"
+#include "Component.h"
+#include "EventBroker.h"
+#include "ResourceManager.h"
+
+namespace dd
+{
+
+class World;
+
+class System
+{
+public:
+	System(World* world, std::shared_ptr<EventBroker> eventBroker)
+		: m_World(world)
+		, EventBroker(eventBroker)
+	{ }
+	virtual ~System() { }
+
+	virtual void RegisterComponents(ComponentFactory* cf) { }
+	virtual void RegisterResourceTypes(std::shared_ptr<dd::ResourceManager> rm) { }
+
+	virtual void Initialize() { }
+
+	// Called once per system every tick
+	virtual void Update(double dt) { }
+	// Called once for every entity in the world every tick
+	virtual void UpdateEntity(double dt, EntityID entity, EntityID parent) { }
+
+	// Called when a component is removed
+	virtual void OnComponentRemoved(EntityID entity, std::string type, Component* component) { }
+	// Called when components are committed to an entity
+	virtual void OnEntityCommit(EntityID entity) { }
+	virtual void OnEntityRemoved(EntityID entity) { }
+
+protected:
+	World* m_World;
+	std::shared_ptr<dd::EventBroker> EventBroker;
+};
+
+class SystemFactory : public Factory<System> { };
+
+}
+
+#endif // System_h__