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