KeyboardManager.h

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#pragma once
 
#include "message.h"
#include <SDL3/SDL.h>
#include <mutex>
#include "system_utils.h"
#include <string>
 
class KeyboardManager 
{
public:
    KeyboardManager()
    {
        name = "KeyboardManager";
        Initialize();
    }
    virtual ~KeyboardManager()
    {
        Shutdown();
    }
 
    static KeyboardManager& GetInstance();
    static KeyboardManager& Get() { return GetInstance(); }
 
    void Initialize();
    void Shutdown();
 
    void HandleEvent(const SDL_Event* ev);
 
    // Pull API for reading keyboard state
    void BeginFrame();
    bool IsKeyHeld(SDL_Scancode sc) ;
    bool IsKeyPressed(SDL_Scancode sc) ;
    bool IsKeyReleased(SDL_Scancode sc) ;
 
private:
    std::string name;
    std::mutex m_mutex;
    void PostKeyEvent(SDL_KeyboardEvent const& ke);
 
    // State tracking for pull API
    bool m_keyStates[SDL_SCANCODE_COUNT] = {false};
    bool m_keysPressedThisFrame[SDL_SCANCODE_COUNT] = {false};
    bool m_keysReleasedThisFrame[SDL_SCANCODE_COUNT] = {false};
};