38 lines
732 B
C++
38 lines
732 B
C++
#pragma once
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#include <optional>
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#include <vector>
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#include <QVector2D>
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#include "EcsComponents.h"
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#include "Tick.h"
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#include "entt/entity/entity.hpp"
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class EntityAdmin;
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struct ScrapInfo
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{
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entt::entity entity;
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QVector2D position;
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};
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class ScrapSystem
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{
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public:
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explicit ScrapSystem(EntityAdmin& admin);
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entt::entity spawn(QVector2D position, int amount, Tick despawnAt);
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void tickDespawn(Tick currentTick);
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// Removes the scrap and returns its amount, or nullopt if not found.
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std::optional<int> consume(entt::entity entity);
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// Lightweight snapshot for callers that need to iterate all scrap.
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std::vector<ScrapInfo> allScrapInfo() const;
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private:
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EntityAdmin& m_admin;
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};
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