bool GetGamepadState(
    GameInputGamepadState* state
);

void PlayerCrouch();
void PlayerStand();
void PlayerReload();
void PlayerMove(float, float);
void SetCameraOrientation(float, float);

void ProcessGamepadState(
    _In_ IGameInputReading * prevReading,
    _In_ IGameInputReading * currentReading) noexcept
{
    GameInputGamepadState prevState, currentState;
    prevReading->GetGamepadState(&prevState);
    currentReading->GetGamepadState(&currentState);

    GameInputGamepadButtons changedButtons = prevState.buttons ^ currentState.buttons;
    GameInputGamepadButtons pressedButtons = changedButtons & currentState.buttons;
    GameInputGamepadButtons releasedButtons = changedButtons ^ pressedButtons;

    if (pressedButtons & GameInputGamepadRightShoulder)
    {
        PlayerCrouch();
    }
    else if (releasedButtons & GameInputGamepadRightShoulder)
    {
        PlayerStand();
    }

    if (pressedButtons & GameInputGamepadLeftShoulder)
    {
        PlayerReload();
    }

    PlayerMove(currentState.leftThumbstickX, currentState.leftThumbstickY);
    SetCameraOrientation(currentState.rightThumbstickX, currentState.rightThumbstickY);
}