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50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
//
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// Created by Zoe Roux on 2021-05-14.
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//
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#pragma once
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#include <chrono>
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#include <vector>
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#include <typeinfo>
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#include <typeindex>
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#include "Entity/Entity.hpp"
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namespace WAL
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{
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//! @brief A base system of WAL
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class System
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{
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private:
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//! @brief The list of dependencies of this system
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std::vector<std::type_index> _dependencies = {};
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public:
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//! @brief A virtual, default, destructor
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virtual ~System() = default;
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//! @brief A system can be moved
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System(System &&) = default;
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//! @brief Get the name of the component corresponding to this system.
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const std::vector<std::type_index> &getDependencies() const;
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//! @brief Update the corresponding component of the given entity
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//! @param entity The entity to update.
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//! @param dtime The delta time.
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virtual void onUpdate(Entity &entity, std::chrono::nanoseconds dtime);
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//! @brief An alternative of onUpdate that is called every 8ms (120 times per seconds). If the system slow down, it will try to catch up.
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//! @remark This should be used for Physics, AI and everything that could be imprecise due to float rounding.
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//! @param entity The entity to update.
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virtual void onFixedUpdate(Entity &entity);
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//! @brief A method called after all entities that this system manage has been updated.
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virtual void onSelfUpdate();
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protected:
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//! @brief A system can't be instantiated, it should be derived.
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explicit System(std::vector<std::type_index> dependencies);
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//! @brief A system can't be instantiated, it should be derived.
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System(const System &) = default;
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//! @brief A system can't be instantiated, it should be derived.
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System &operator=(const System &) = default;
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};
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} // namespace WAL
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