Added Components
Former-commit-id: 02f9e9892b58a725697b83e7b75127db5b3a27f4
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@@ -3,7 +3,9 @@
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// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
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#include <NDK/World.hpp>
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#include <Nazara/Core/Error.hpp>
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#include <algorithm>
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#include <stdexcept>
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#include <utility>
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namespace Ndk
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@@ -14,6 +16,60 @@ namespace Ndk
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{
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}
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template<typename C, typename... Args>
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C& Entity::AddComponent(Args&&... args)
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{
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static_assert(std::is_base_of<BaseComponent, C>(), "C is not a component");
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// Nous supprimons l'ancien component, s'il existe
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RemoveComponent<C>();
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// Récupération de l'identification du component, qui va nous servir d'indice
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nzUInt32 componentId = C::ComponentId;
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// Nous nous assurons que le vecteur de component est suffisamment grand pour contenir le nouveau component
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if (m_components.size() <= componentId)
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m_components.resize(componentId + 1);
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// Allocation et affectation du component
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std::unique_ptr<C> ptr(new C(std::forward(args)...));
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C* component = ptr.get();
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m_components[componentId] = std::move(ptr);
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return *component;
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}
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template<typename C>
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C& Entity::GetComponent()
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{
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///DOC: Lance une exception si le component n'est pas présent
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static_assert(std::is_base_of<BaseComponent, C>(), "C is not a component");
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if (!HasComponent<C>())
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throw std::runtime_error("Tried to get a non-present component");
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BaseComponent* component = m_components[C::ComponentId].get();
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NazaraAssert(component, "Invalid component pointer");
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return *static_cast<C*>(component);
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}
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template<typename C>
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const C& Entity::GetComponent() const
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{
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///DOC: Lance une exception si le component n'est pas présent
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static_assert(std::is_base_of<BaseComponent, C>(), "C is not a component");
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if (!HasComponent<C>())
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throw std::runtime_error("Tried to get a non-present component");
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BaseComponent* component = m_components[C::ComponentId].get();
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NazaraAssert(component, "Invalid component pointer");
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return *static_cast<C*>(component);
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}
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inline Entity::Id Entity::GetId() const
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{
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return m_id;
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@@ -24,6 +80,29 @@ namespace Ndk
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return m_world;
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}
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template<typename C>
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bool Entity::HasComponent() const
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{
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static_assert(std::is_base_of<BaseComponent, C>(), "C is not a component");
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nzUInt32 componentId = C::ComponentId;
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return m_components.size() > componentId && m_components[componentId];
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}
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inline void Entity::RemoveAllComponent()
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{
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m_components.clear();
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}
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template<typename C>
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void Entity::RemoveComponent()
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{
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static_assert(std::is_base_of<BaseComponent, C>(), "C is not a component");
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if (HasComponent<C>())
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m_components[C::ComponentId].reset();
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}
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inline void Entity::RegisterHandle(EntityHandle* handle)
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{
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///DOC: Un handle ne doit être enregistré qu'une fois, des erreurs se produisent s'il l'est plus d'une fois
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