move MotionEmu from core/frontend to input_common as a InputDevice

src/core/frontend/motion_emu.h

@@ -1,52 +0,0 @@
-// Copyright 2016 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-#include "common/thread.h"
-#include "common/vector_math.h"
-
-class EmuWindow;
-
-namespace Motion {
-
-class MotionEmu final {
-public:
-    MotionEmu(EmuWindow& emu_window);
-    ~MotionEmu();
-
-    /**
-     * Signals that a motion sensor tilt has begun.
-     * @param x the x-coordinate of the cursor
-     * @param y the y-coordinate of the cursor
-     */
-    void BeginTilt(int x, int y);
-
-    /**
-     * Signals that a motion sensor tilt is occurring.
-     * @param x the x-coordinate of the cursor
-     * @param y the y-coordinate of the cursor
-     */
-    void Tilt(int x, int y);
-
-    /**
-     * Signals that a motion sensor tilt has ended.
-     */
-    void EndTilt();
-
-private:
-    Math::Vec2<int> mouse_origin;
-
-    std::mutex tilt_mutex;
-    Math::Vec2<float> tilt_direction;
-    float tilt_angle = 0;
-
-    bool is_tilting = false;
-
-    Common::Event shutdown_event;
-    std::thread motion_emu_thread;
-
-    void MotionEmuThread(EmuWindow& emu_window);
-};
-
-} // namespace Motion