(NDK) First commit

-Still missing a build file
-This is an Entity Component System, without any component nor system,
so this is an Entity. Yay.


Former-commit-id: f04d2fdfe8819826f940469c2618140a26afa637

SDK/src/NDK/World.cpp

@@ -0,0 +1,119 @@
+// This file was automatically generated on 26 May 2014 at 01:05:31
+
+#include <NDK/World.hpp>
+#include <Nazara/Core/Error.hpp>
+
+namespace Ndk
+{
+	World::World() :
+	m_nextIndex(0)
+	{
+	}
+
+	World::~World() = default;
+
+	Entity World::CreateEntity()
+	{
+		Entity::Id id;
+		if (!m_freeIdList.empty())
+		{
+			// On récupère un identifiant
+			id = m_freeIdList.back();
+			m_freeIdList.pop_back();
+		}
+		else
+		{
+			// On alloue un nouvel identifiant
+			m_entitiesCounter.resize(m_entitiesCounter.size() + 1);
+
+			auto& counter = m_entitiesCounter.back();
+			counter = 1;
+
+			id.part.counter = counter;
+			id.part.index = m_nextIndex;
+
+			m_nextIndex++;
+		}
+
+		Entity entity(id, this);
+		m_aliveEntities.push_back(entity);
+
+		return entity;
+	}
+
+	World::EntityList World::CreateEntities(unsigned int count)
+	{
+		EntityList list;
+		for (unsigned int i = 0; i < count; ++i)
+			list.push_back(CreateEntity());
+
+		return list;
+	}
+
+	void World::KillEntity(Entity& entity)
+	{
+		m_killedEntities.push_back(entity);
+	}
+
+	void World::KillEntities(EntityList& list)
+	{
+		m_killedEntities.reserve(m_killedEntities.size() + list.size());
+		for (Entity& entity : list)
+			KillEntity(entity);
+	}
+
+	Entity World::GetEntity(Entity::Id id)
+	{
+		if (IsEntityIdValid(id))
+			return Entity(id, this);
+		else
+		{
+			NazaraError("Invalid ID");
+			return Entity();
+		}
+	}
+
+	bool World::IsEntityValid(const Entity& entity) const
+	{
+		return entity.GetWorld() == this && IsEntityIdValid(entity.GetId());
+	}
+
+	bool World::IsEntityIdValid(Entity::Id id) const
+	{
+		return m_entitiesCounter[id.part.index] == id.part.counter;
+	}
+
+	void World::Update()
+	{
+		if (!m_killedEntities.empty())
+		{
+			///FIXME: Inverser les deux boucles ?
+			for (unsigned int i = 0; i < m_aliveEntities.size(); ++i)
+			{
+				Entity::Id e1 = m_aliveEntities[i].GetId();
+
+				for (unsigned int j = 0; j < m_killedEntities.size(); ++j)
+				{
+					Entity::Id e2 = m_killedEntities[j].GetId();
+					if (e1 == e2)
+					{
+						// Remise en file de l'identifiant d'entité
+						nzUInt32& counter = m_entitiesCounter[e1.part.index];
+						counter++;
+
+						e1.part.counter = counter;
+						m_freeIdList.push_back(e1);
+
+						// Suppression de l'entité des deux tableaux
+						m_aliveEntities.erase(m_aliveEntities.begin() + i);
+						m_killedEntities.erase(m_killedEntities.begin() + j);
+						break;
+					}
+				}
+
+				if (m_killedEntities.empty())
+					break;
+			}
+		}
+	}
+}