112 lines
2.6 KiB
C++
112 lines
2.6 KiB
C++
// Copyright (C) 2015 Jérôme Leclercq
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// This file is part of the "Nazara Development Kit"
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// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
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#include <Nazara/Core/Error.hpp>
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#include <type_traits>
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namespace Ndk
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{
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inline BaseSystem::BaseSystem(SystemId systemId) :
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m_systemId(systemId)
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{
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}
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inline const std::vector<EntityHandle>& BaseSystem::GetEntities() const
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{
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return m_entities;
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}
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inline SystemId BaseSystem::GetId() const
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{
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return m_systemId;
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}
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inline World& BaseSystem::GetWorld() const
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{
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return *m_world;
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}
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inline bool BaseSystem::HasEntity(const Entity* entity) const
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{
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if (!entity)
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return false;
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return m_entityBits.UnboundedTest(entity->GetId());
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}
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template<typename ComponentType>
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void BaseSystem::Excludes()
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{
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static_assert(std::is_base_of<BaseComponent, ComponentType>(), "ComponentType is not a component");
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ExcludesComponent(GetComponentId<ComponentType>());
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}
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template<typename ComponentType1, typename ComponentType2, typename... Rest>
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void BaseSystem::Excludes()
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{
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Excludes<ComponentType1>();
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Excludes<ComponentType2, Rest...>();
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}
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inline void BaseSystem::ExcludesComponent(ComponentId componentId)
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{
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m_excludedComponents.insert(componentId);
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}
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template<typename ComponentType>
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void BaseSystem::Requires()
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{
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static_assert(std::is_base_of<BaseComponent, ComponentType>(), "ComponentType is not a component");
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RequiresComponent(GetComponentId<ComponentType>());
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}
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template<typename ComponentType1, typename ComponentType2, typename... Rest>
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void BaseSystem::Requires()
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{
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Requires<ComponentType1>();
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Requires<ComponentType2, Rest...>();
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}
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inline void BaseSystem::RequiresComponent(ComponentId componentId)
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{
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m_requiredComponents.insert(componentId);
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}
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inline void BaseSystem::AddEntity(Entity* entity)
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{
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NazaraAssert(entity, "Invalid entity");
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m_entities.push_back(entity->CreateHandle());
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m_entityBits.UnboundedSet(entity->GetId(), true);
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entity->RegisterSystem(m_systemId);
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OnEntityAdded(entity);
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}
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inline void BaseSystem::RemoveEntity(Entity* entity)
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{
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NazaraAssert(entity, "Invalid entity");
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auto it = std::find(m_entities.begin(), m_entities.end(), *entity);
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NazaraAssert(it != m_entities.end(), "Entity is not part of this system");
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// Pour éviter de déplacer beaucoup de handles, on swap le dernier avec celui à supprimer
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std::swap(*it, m_entities.back());
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m_entities.pop_back(); // On le sort du vector
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m_entityBits.Reset(entity->GetId());
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entity->UnregisterSystem(m_systemId);
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OnEntityRemoved(entity); // Et on appelle le callback
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}
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inline void BaseSystem::SetWorld(World& world)
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{
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m_world = &world;
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}
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}
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