Frontend: emulate motion sensor

src/citra/emu_window/emu_window_sdl2.cpp

@@ -19,16 +19,22 @@
 
 void EmuWindow_SDL2::OnMouseMotion(s32 x, s32 y) {
     TouchMoved((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
+    motion_emu->Tilt(x, y);
 }
 
 void EmuWindow_SDL2::OnMouseButton(u32 button, u8 state, s32 x, s32 y) {
-    if (button != SDL_BUTTON_LEFT)
-        return;
-
-    if (state == SDL_PRESSED) {
-        TouchPressed((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
-    } else {
-        TouchReleased();
+    if (button == SDL_BUTTON_LEFT) {
+        if (state == SDL_PRESSED) {
+            TouchPressed((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
+        } else {
+            TouchReleased();
+        }
+    } else if (button == SDL_BUTTON_RIGHT) {
+        if (state == SDL_PRESSED) {
+            motion_emu->BeginTilt(x, y);
+        } else {
+            motion_emu->EndTilt();
+        }
     }
 }
 
@@ -54,6 +60,7 @@ EmuWindow_SDL2::EmuWindow_SDL2() {
     keyboard_id = KeyMap::NewDeviceId();
 
     ReloadSetKeymaps();
+    motion_emu = std::make_unique<Motion::MotionEmu>(*this);
 
     SDL_SetMainReady();
 
@@ -109,6 +116,7 @@ EmuWindow_SDL2::EmuWindow_SDL2() {
 EmuWindow_SDL2::~EmuWindow_SDL2() {
     SDL_GL_DeleteContext(gl_context);
     SDL_Quit();
+    motion_emu = nullptr;
 }
 
 void EmuWindow_SDL2::SwapBuffers() {

src/citra/emu_window/emu_window_sdl2.h

@@ -4,8 +4,10 @@
 
 #pragma once
 
+#include <memory>
 #include <utility>
 #include "core/frontend/emu_window.h"
+#include "core/frontend/motion_emu.h"
 
 struct SDL_Window;
 
@@ -61,4 +63,7 @@ private:
 
     /// Device id of keyboard for use with KeyMap
     int keyboard_id;
+
+    /// Motion sensors emulation
+    std::unique_ptr<Motion::MotionEmu> motion_emu;
 };