80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
#pragma once
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#include "ComponentArray.hpp"
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#include "Types.hpp"
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#include <any>
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#include <memory>
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#include <unordered_map>
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class ComponentManager
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{
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public:
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template<typename T>
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void RegisterComponent()
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{
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const char* typeName = typeid(T).name();
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assert(mComponentTypes.find(typeName) == mComponentTypes.end() && "Registering component type more than once.");
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mComponentTypes.insert({typeName, mNextComponentType});
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mComponentArrays.insert({typeName, std::make_shared<ComponentArray<T>>()});
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++mNextComponentType;
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}
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template<typename T>
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ComponentType GetComponentType()
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{
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const char* typeName = typeid(T).name();
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assert(mComponentTypes.find(typeName) != mComponentTypes.end() && "Component not registered before use.");
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return mComponentTypes[typeName];
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}
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template<typename T>
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void AddComponent(Entity entity, T component)
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{
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GetComponentArray<T>()->InsertData(entity, component);
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}
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template<typename T>
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void RemoveComponent(Entity entity)
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{
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GetComponentArray<T>()->RemoveData(entity);
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}
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template<typename T>
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T& GetComponent(Entity entity)
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{
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return GetComponentArray<T>()->GetData(entity);
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}
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void EntityDestroyed(Entity entity)
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{
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for (auto const& pair : mComponentArrays)
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{
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auto const& component = pair.second;
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component->EntityDestroyed(entity);
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}
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}
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private:
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std::unordered_map<const char*, ComponentType> mComponentTypes{};
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std::unordered_map<const char*, std::shared_ptr<IComponentArray>> mComponentArrays{};
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ComponentType mNextComponentType{};
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template<typename T>
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std::shared_ptr<ComponentArray<T>> GetComponentArray()
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{
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const char* typeName = typeid(T).name();
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assert(mComponentTypes.find(typeName) != mComponentTypes.end() && "Component not registered before use.");
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return std::static_pointer_cast<ComponentArray<T>>(mComponentArrays[typeName]);
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}
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};
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