48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
#pragma once
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#include <cstddef>
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#include <memory>
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#include <string>
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#include <unordered_map>
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namespace boundard {
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class Scene;
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class Game {
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private:
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size_t id_cnt;
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std::string current_scene_name_;
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std::string pending_scene_;
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std::unordered_map<std::string, std::shared_ptr<Scene>> scenes_;
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std::shared_ptr<Scene> current_scene_;
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public:
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Game();
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~Game();
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Game(const Game&) = delete;
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Game& operator=(const Game&) = delete;
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Game(Game&&) noexcept = delete;
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Game& operator=(Game&&) noexcept = delete;
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static Game& getInstance();
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void launch();
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size_t new_id();
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// 场景注册与查询。
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void add_scene(std::shared_ptr<Scene> scene);
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std::shared_ptr<Scene> scene(const std::string& name) const;
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std::shared_ptr<Scene> current_scene() const;
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const std::string& current_scene_name() const;
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bool has_scene(const std::string& name) const;
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// 引擎在安全时机调用，把目标场景设为当前场景。
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void set_current_scene(std::shared_ptr<Scene> scene);
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// 供行为函数调用的切换 API。场景会在主循环的安全时机切换。
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bool switch_scene(const std::string& name);
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void request_scene(const std::string& name);
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std::string take_scene_request();
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};
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} // namespace boundard
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