NazaraEngine/SDK/include/NDK/World.hpp

96 lines
2.4 KiB
C++

// Copyright (C) 2015 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
#pragma once
#ifndef NDK_WORLD_HPP
#define NDK_WORLD_HPP
#include <Nazara/Core/Bitset.hpp>
#include <NDK/Entity.hpp>
#include <NDK/EntityHandle.hpp>
#include <NDK/System.hpp>
#include <algorithm>
#include <memory>
#include <vector>
#include <unordered_map>
namespace Ndk
{
class NDK_API World
{
friend Entity;
public:
using EntityList = std::vector<EntityHandle>;
inline World(bool addDefaultSystems = true);
World(const World&) = delete;
inline World(World&& world) noexcept;
~World() noexcept;
void AddDefaultSystems();
inline BaseSystem& AddSystem(std::unique_ptr<BaseSystem>&& system);
template<typename SystemType, typename... Args> SystemType& AddSystem(Args&&... args);
const EntityHandle& CreateEntity();
inline EntityList CreateEntities(unsigned int count);
void Clear() noexcept;
const EntityHandle& GetEntity(EntityId id);
inline const EntityList& GetEntities();
inline BaseSystem& GetSystem(SystemIndex index);
template<typename SystemType> SystemType& GetSystem();
inline bool HasSystem(SystemIndex index) const;
template<typename SystemType> bool HasSystem() const;
void KillEntity(Entity* entity);
inline void KillEntities(const EntityList& list);
inline bool IsEntityValid(const Entity* entity) const;
inline bool IsEntityIdValid(EntityId id) const;
inline void RemoveAllSystems();
inline void RemoveSystem(SystemIndex index);
template<typename SystemType> void RemoveSystem();
void Update();
inline void Update(float elapsedTime);
World& operator=(const World&) = delete;
inline World& operator=(World&& world) noexcept;
private:
inline void Invalidate();
inline void Invalidate(EntityId id);
struct EntityBlock
{
EntityBlock(Entity&& e) :
entity(std::move(e))
{
}
EntityBlock(EntityBlock&& block) = default;
Entity entity;
unsigned int aliveIndex;
};
std::vector<std::unique_ptr<BaseSystem>> m_systems;
std::vector<EntityBlock> m_entities;
std::vector<EntityId> m_freeIdList;
EntityList m_aliveEntities;
Nz::Bitset<Nz::UInt64> m_dirtyEntities;
Nz::Bitset<Nz::UInt64> m_killedEntities;
};
}
#include <NDK/World.inl>
#endif // NDK_WORLD_HPP