59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
#pragma once
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#include <memory>
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#include <stack>
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#include <map>
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template<typename Type, class SpriteFactory, class Sprite,
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typename = std::enable_if_t<std::is_enum<Type>::value>>
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class SpriteContainer
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{
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public:
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explicit SpriteContainer(std::initializer_list<Type>&& types,
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std::unique_ptr<SpriteFactory>&& factory,
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std::size_t reserve_size = 20) :
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_sprite_factory(std::move(factory)),
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_poll_reserve_size(reserve_size)
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{
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for (const Type& type : types)
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reallocatePoll(type);
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}
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inline std::shared_ptr<Sprite> getSprite(Type type)
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{
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SpritePoll& poll = _sprite_dispatcher.at(type);
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if (poll.empty())
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reallocatePoll(type);
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std::shared_ptr<Sprite> sprite = poll.top();
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poll.pop();
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return sprite;
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}
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inline void resetSprite(const std::shared_ptr<Sprite> &sprite, Type action) noexcept
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{
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_sprite_dispatcher[action].push(sprite);
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}
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~SpriteContainer() = default;
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private:
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inline void reallocatePoll(Type sprite_type)
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{
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SpritePoll &poll = _sprite_dispatcher[sprite_type];
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for (std::size_t i = 0; i < _poll_reserve_size; ++i)
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{
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poll.push(_sprite_factory->create(sprite_type));
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}
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}
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using SpritePoll = std::stack<std::shared_ptr<Sprite>>;
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std::map<Type, SpritePoll> _sprite_dispatcher;
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std::unique_ptr<SpriteFactory> _sprite_factory;
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std::size_t _poll_reserve_size;
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};
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