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#pragma once
#ifdef _WINDOWS64
#include <windows.h>
// HID usage page and usage for raw input registration
#ifndef HID_USAGE_PAGE_GENERIC
#define HID_USAGE_PAGE_GENERIC ((USHORT)0x01)
#endif
#ifndef HID_USAGE_GENERIC_MOUSE
#define HID_USAGE_GENERIC_MOUSE ((USHORT)0x02)
#endif
class KeyboardMouseInput
{
public:
KeyboardMouseInput();
~KeyboardMouseInput();
void Init(HWND hWnd);
void Tick();
void EndFrame();
// Called from WndProc
void OnKeyDown(WPARAM vk);
void OnKeyUp(WPARAM vk);
void OnRawMouseInput(LPARAM lParam);
void OnMouseButton(int button, bool down);
void OnMouseWheel(int delta);
void ClearAllState();
// Per-frame edge detection (for UI / per-frame logic like Alt toggle)
bool IsKeyDown(int vk) const;
bool IsKeyPressed(int vk) const;
bool IsKeyReleased(int vk) const;
bool IsMouseDown(int btn) const;
bool IsMousePressed(int btn) const;
bool IsMouseReleased(int btn) const;
// Game-tick consume methods: accumulate across frames, clear on read.
// Use these from code that runs at game tick rate (20Hz).
bool ConsumeKeyPress(int vk);
bool ConsumeMousePress(int btn);
void ConsumeMouseDelta(float &dx, float &dy);
int ConsumeScrollDelta();
// Mouse capture for FPS look
void SetCapture(bool capture);
bool IsCaptured() const;
private:
void CenterCursor();
// Per-frame double-buffered state (for IsKeyPressed/Released per-frame edge detection)
bool m_keyState[256];
bool m_keyStatePrev[256];
bool m_mouseButtons[3];
bool m_mouseButtonsPrev[3];
// Sticky press accumulators (persist until consumed by game tick)
bool m_keyPressedAccum[256];
bool m_mousePressedAccum[3];
// Mouse delta accumulators (persist until consumed by game tick)
float m_mouseDeltaXAccum;
float m_mouseDeltaYAccum;
// Scroll accumulator (persists until consumed by game tick)
int m_scrollDeltaAccum;
bool m_captured;
HWND m_hWnd;
bool m_initialized;
};
extern KeyboardMouseInput KMInput;
#endif // _WINDOWS64
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