KeyBindings.hpp

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/*
** EPITECH PROJECT, 2026
** r-type
** File description:
** KeyBindings - Centralized key binding management
*/
 
#pragma once
 
#include <raylib.h>
#include <functional>
#include <string>
#include <unordered_map>
 
namespace Input {
 
    constexpr int GAMEPAD_BUTTON_OFFSET = 1000;
 
    inline bool IsGamepadBinding(int binding) {
        return binding >= GAMEPAD_BUTTON_OFFSET;
    }
 
    inline int GamepadButtonToBinding(int button) {
        return GAMEPAD_BUTTON_OFFSET + button;
    }
 
    inline int BindingToGamepadButton(int binding) {
        return binding - GAMEPAD_BUTTON_OFFSET;
    }
 
    enum class GameAction {
        // Movement
        MOVE_UP,
        MOVE_DOWN,
        MOVE_LEFT,
        MOVE_RIGHT,
 
        // Combat
        SHOOT,
 
        // UI/System
        PAUSE_MENU,
        CHAT_OPEN,
 
        // Menu Navigation
        MENU_NEXT,
        MENU_PREVIOUS,
        MENU_CONFIRM,
        MENU_BACK,
 
        COUNT  // Keep last for iteration
    };
 
    class KeyBindings {
       public:
        static KeyBindings &getInstance();
 
        // Delete copy/move constructors
        KeyBindings(const KeyBindings &) = delete;
        KeyBindings &operator=(const KeyBindings &) = delete;
        KeyBindings(KeyBindings &&) = delete;
        KeyBindings &operator=(KeyBindings &&) = delete;
 
        void ResetToDefaults();
 
        [[nodiscard]] int GetPrimaryKey(GameAction action) const;
 
        [[nodiscard]] int GetSecondaryKey(GameAction action) const;
 
        void SetPrimaryKey(GameAction action, int key);
 
        void SetSecondaryKey(GameAction action, int key);
 
        void ClearSecondaryKey(GameAction action);
 
        [[nodiscard]] bool IsKeyBoundToAction(GameAction action, int key) const;
 
        [[nodiscard]] static std::string GetKeyName(int key);
 
        [[nodiscard]] static std::string GetGamepadButtonName(int button);
 
        [[nodiscard]] static std::string GetBindingName(int binding);
 
        [[nodiscard]] static std::string GetActionName(GameAction action);
 
        void SetOnBindingsChanged(std::function<void()> callback);
 
        bool SaveToFile(const std::string &filepath) const;
 
        bool LoadFromFile(const std::string &filepath);
 
       private:
        KeyBindings();
        ~KeyBindings() = default;
 
        struct KeyBinding {
            int primary{KEY_NULL};
            int secondary{KEY_NULL};
        };
 
        std::unordered_map<GameAction, KeyBinding> _bindings;
        std::function<void()> _onBindingsChanged;
 
        void NotifyBindingsChanged();
    };
 
}  // namespace Input