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#pragma once
#include <memory>
#include <string>
#include <unordered_map>
#include "state.h"
namespace Donut
{
class StateManager
{
public:
~StateManager() = default;
void shutdown();
void update(float delta_time);
void render();
void on_event(Event& event);
void register_state(const std::string& state_name, std::unique_ptr<State> state);
void switch_to_state(const std::string& state_name);
std::string get_current_state_name() const { return m_current_state_name; }
State* get_current_state() const { return m_current_state; }
State* get_state(const std::string& state_name);
bool has_state(const std::string& state_name) const;
private:
void create_states();
void destroy_states();
private:
State* m_current_state = nullptr;
std::string m_current_state_name = "";
std::unordered_map<std::string, std::unique_ptr<State>> m_states;
};
}
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