87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
// Copyright (C) 2017 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 Prerequisites.hpp
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#pragma once
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#ifndef NDK_ENTITYLIST_HPP
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#define NDK_ENTITYLIST_HPP
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#include <Nazara/Core/Bitset.hpp>
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#include <NDK/Prerequisites.hpp>
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#include <NDK/Entity.hpp>
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namespace Ndk
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{
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class NDK_API EntityList
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{
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friend Entity;
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public:
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class iterator;
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friend iterator;
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using size_type = std::size_t;
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inline EntityList();
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inline EntityList(const EntityList& entityList);
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inline EntityList(EntityList&& entityList) noexcept;
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inline ~EntityList();
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inline void Clear();
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inline bool Has(const Entity* entity) const;
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inline bool Has(EntityId entity) const;
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inline void Insert(Entity* entity);
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inline void Remove(Entity* entity);
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inline void Reserve(std::size_t entityCount);
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// STL API
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inline iterator begin() const;
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inline bool empty() const;
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inline iterator end() const;
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inline size_type size() const;
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inline EntityList& operator=(const EntityList& entityList);
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inline EntityList& operator=(EntityList&& entityList) noexcept;
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private:
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inline std::size_t FindNext(std::size_t currentId) const;
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inline World* GetWorld() const;
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inline void NotifyEntityDestruction(const Entity* entity);
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Nz::Bitset<Nz::UInt64> m_entityBits;
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World* m_world;
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};
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class NDK_API EntityList::iterator : public std::iterator<std::forward_iterator_tag, const EntityHandle>
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{
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friend EntityList;
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public:
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inline iterator(const iterator& it);
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const EntityHandle& operator*() const;
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inline iterator& operator=(const iterator& it);
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inline iterator& operator++();
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inline iterator operator++(int);
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friend inline bool operator==(const iterator& lhs, const iterator& rhs);
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friend inline bool operator!=(const iterator& lhs, const iterator& rhs);
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friend inline void swap(iterator& lhs, iterator& rhs);
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private:
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inline iterator(const EntityList* world, std::size_t nextId);
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std::size_t m_nextEntityId;
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const EntityList* m_list;
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};
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}
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#include <NDK/EntityList.inl>
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#endif // NDK_ENTITYLIST_HPP
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