BSWin32GamepadDevice.h

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#pragma once
 
#include "RE/B/BSPCGamepadDeviceDelegate.h"
 
#include "REX/W32/XINPUT.h"
 
namespace RE
{
    class BSWin32GamepadDevice : public BSPCGamepadDeviceDelegate
    {
    public:
        inline static constexpr auto RTTI = RTTI_BSWin32GamepadDevice;
        inline static constexpr auto VTABLE = VTABLE_BSWin32GamepadDevice;
 
        struct Keys
        {
            enum Key : std::uint32_t
            {
                // button masks for wButtons
                kUp = REX::W32::XINPUT_GAMEPAD_DPAD_UP,                    // 0x0001
                kDown = REX::W32::XINPUT_GAMEPAD_DPAD_DOWN,                // 0x0002
                kLeft = REX::W32::XINPUT_GAMEPAD_DPAD_LEFT,                // 0x0004
                kRight = REX::W32::XINPUT_GAMEPAD_DPAD_RIGHT,              // 0x0008
                kStart = REX::W32::XINPUT_GAMEPAD_START,                   // 0x0010
                kBack = REX::W32::XINPUT_GAMEPAD_BACK,                     // 0x0020
                kLeftThumb = REX::W32::XINPUT_GAMEPAD_LEFT_THUMB,          // 0x0040
                kRightThumb = REX::W32::XINPUT_GAMEPAD_RIGHT_THUMB,        // 0x0080
                kLeftShoulder = REX::W32::XINPUT_GAMEPAD_LEFT_SHOULDER,    // 0x0100
                kRightShoulder = REX::W32::XINPUT_GAMEPAD_RIGHT_SHOULDER,  // 0x0200
                kA = REX::W32::XINPUT_GAMEPAD_A,                           // 0x1000
                kB = REX::W32::XINPUT_GAMEPAD_B,                           // 0x2000
                kX = REX::W32::XINPUT_GAMEPAD_X,                           // 0x4000
                kY = REX::W32::XINPUT_GAMEPAD_Y,                           // 0x8000
 
                // arbitrary values
                // IDs meant to be used with ButtonEvent
                kLeftTrigger = 0x0009,
                kRightTrigger = 0x000A,
                // IDs meant to be used with ThumbstickEvent
                kLeftStick = 0x000B,
                kRightStick = 0x000C
            };
        };
        using Key = Keys::Key;
 
        struct ButtonState
        {
            bool up: 1;             // 0x0001
            bool down: 1;           // 0x0002
            bool left: 1;           // 0x0004
            bool right: 1;          // 0x0008
            bool start: 1;          // 0x0010
            bool back: 1;           // 0x0020
            bool leftThumb: 1;      // 0x0040
            bool rightThumb: 1;     // 0x0080
            bool leftShoulder: 1;   // 0x0100
            bool rightShoulder: 3;  // 0x0200, skip over 2 bits (XInput documentation says the state of these two bits are undefined)
            bool a: 1;              // 0x1000
            bool b: 1;              // 0x2000
            bool x: 1;              // 0x4000
            bool y: 1;              // 0x8000
        };
 
        ~BSWin32GamepadDevice() override;  // 00
 
        // override (BSPCGamepadDeviceDelegate)
        void Initialize() override;                           // 01
        void Process(float a_arg1) override;                  // 02
        void Release() override;                              // 03 - { return; }
        void Reset() override;                                // 08 - { std::memset(&unk0D8, 0, 0x50); }
        void SetRumble(float lValue, float rValue) override;  // 09 - { return; }
 
        // Returns the previous ButtonState of the gamepad
        ButtonState GetPreviousButtonState() const
        {
            return stl::unrestricted_cast<ButtonState>(previousState.gamepad.buttons & REX::W32::XINPUT_GAMEPAD_BUTTON_MASK);
        }
 
        // Returns the current ButtonState of the gamepad
        ButtonState GetCurrentButtonState() const
        {
            return stl::unrestricted_cast<ButtonState>(currentState.gamepad.buttons & REX::W32::XINPUT_GAMEPAD_BUTTON_MASK);
        }
 
        // members
        REX::W32::XINPUT_STATE previousState;  // 0D8
        float                  previousLT;     // 0E8
        float                  previousRT;     // 0EC
        float                  previousLX;     // 0F0
        float                  previousLY;     // 0F4
        float                  previousRX;     // 0F8
        float                  previousRY;     // 0FC
        REX::W32::XINPUT_STATE currentState;   // 100
        float                  currentLT;      // 110
        float                  currentRT;      // 114
        float                  currentLX;      // 118
        float                  currentLY;      // 11C
        float                  currentRX;      // 120
        float                  currentRY;      // 124
 
    protected:
        friend class BSGamepadDeviceHandler;
        BSWin32GamepadDevice();
    };
    static_assert(sizeof(BSWin32GamepadDevice) == 0x128);
}