WiimoteEmu: Mark several getters as const

These don't modify internal class state, so they can be made const.

2 files changed, 34 insertions, 36 deletions

diff --git a/Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.cpp b/Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.cpp
index 8191c231ec..1ce8d6a55b 100644
--- a/Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.cpp
+++ b/Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.cpp
@@ -287,7 +287,7 @@ std::string Wiimote::GetName() const
   return fmt::format("Wiimote{}", 1 + m_index);
 }
 
-ControllerEmu::ControlGroup* Wiimote::GetWiimoteGroup(WiimoteGroup group)
+ControllerEmu::ControlGroup* Wiimote::GetWiimoteGroup(WiimoteGroup group) const
 {
   switch (group)
   {
@@ -323,52 +323,52 @@ ControllerEmu::ControlGroup* Wiimote::GetWiimoteGroup(WiimoteGroup group)
   }
 }
 
-ControllerEmu::ControlGroup* Wiimote::GetNunchukGroup(NunchukGroup group)
+ControllerEmu::ControlGroup* Wiimote::GetNunchukGroup(NunchukGroup group) const
 {
   return static_cast<Nunchuk*>(m_attachments->GetAttachmentList()[ExtensionNumber::NUNCHUK].get())
       ->GetGroup(group);
 }
 
-ControllerEmu::ControlGroup* Wiimote::GetClassicGroup(ClassicGroup group)
+ControllerEmu::ControlGroup* Wiimote::GetClassicGroup(ClassicGroup group) const
 {
   return static_cast<Classic*>(m_attachments->GetAttachmentList()[ExtensionNumber::CLASSIC].get())
       ->GetGroup(group);
 }
 
-ControllerEmu::ControlGroup* Wiimote::GetGuitarGroup(GuitarGroup group)
+ControllerEmu::ControlGroup* Wiimote::GetGuitarGroup(GuitarGroup group) const
 {
   return static_cast<Guitar*>(m_attachments->GetAttachmentList()[ExtensionNumber::GUITAR].get())
       ->GetGroup(group);
 }
 
-ControllerEmu::ControlGroup* Wiimote::GetDrumsGroup(DrumsGroup group)
+ControllerEmu::ControlGroup* Wiimote::GetDrumsGroup(DrumsGroup group) const
 {
   return static_cast<Drums*>(m_attachments->GetAttachmentList()[ExtensionNumber::DRUMS].get())
       ->GetGroup(group);
 }
 
-ControllerEmu::ControlGroup* Wiimote::GetTurntableGroup(TurntableGroup group)
+ControllerEmu::ControlGroup* Wiimote::GetTurntableGroup(TurntableGroup group) const
 {
   return static_cast<Turntable*>(
              m_attachments->GetAttachmentList()[ExtensionNumber::TURNTABLE].get())
       ->GetGroup(group);
 }
 
-ControllerEmu::ControlGroup* Wiimote::GetUDrawTabletGroup(UDrawTabletGroup group)
+ControllerEmu::ControlGroup* Wiimote::GetUDrawTabletGroup(UDrawTabletGroup group) const
 {
   return static_cast<UDrawTablet*>(
              m_attachments->GetAttachmentList()[ExtensionNumber::UDRAW_TABLET].get())
       ->GetGroup(group);
 }
 
-ControllerEmu::ControlGroup* Wiimote::GetDrawsomeTabletGroup(DrawsomeTabletGroup group)
+ControllerEmu::ControlGroup* Wiimote::GetDrawsomeTabletGroup(DrawsomeTabletGroup group) const
 {
   return static_cast<DrawsomeTablet*>(
              m_attachments->GetAttachmentList()[ExtensionNumber::DRAWSOME_TABLET].get())
       ->GetGroup(group);
 }
 
-ControllerEmu::ControlGroup* Wiimote::GetTaTaConGroup(TaTaConGroup group)
+ControllerEmu::ControlGroup* Wiimote::GetTaTaConGroup(TaTaConGroup group) const
 {
   return static_cast<TaTaCon*>(m_attachments->GetAttachmentList()[ExtensionNumber::TATACON].get())
       ->GetGroup(group);
@@ -799,7 +799,7 @@ void Wiimote::StepDynamics()
                    1.f / ::Wiimote::UPDATE_FREQ);
 }
 
-Common::Vec3 Wiimote::GetAcceleration(Common::Vec3 extra_acceleration)
+Common::Vec3 Wiimote::GetAcceleration(Common::Vec3 extra_acceleration) const
 {
   Common::Vec3 accel = GetOrientation() * GetTransformation().Transform(
                                               m_swing_state.acceleration + extra_acceleration, 0);
@@ -810,7 +810,7 @@ Common::Vec3 Wiimote::GetAcceleration(Common::Vec3 extra_acceleration)
   return accel;
 }
 
-Common::Vec3 Wiimote::GetAngularVelocity(Common::Vec3 extra_angular_velocity)
+Common::Vec3 Wiimote::GetAngularVelocity(Common::Vec3 extra_angular_velocity) const
 {
   return GetOrientation() * (m_tilt_state.angular_velocity + m_swing_state.angular_velocity +
                              m_point_state.angular_velocity + extra_angular_velocity);
@@ -835,22 +835,20 @@ Common::Matrix33 Wiimote::GetOrientation() const
          Common::Matrix33::RotateX(float(MathUtil::TAU / 4 * IsUpright()));
 }
 
-Common::Vec3 Wiimote::GetTotalAcceleration()
+Common::Vec3 Wiimote::GetTotalAcceleration() const
 {
-  auto accel = m_imu_accelerometer->GetState();
-  if (accel.has_value())
-    return GetAcceleration(accel.value());
-  else
-    return GetAcceleration();
+  if (const auto accel = m_imu_accelerometer->GetState())
+    return GetAcceleration(*accel);
+
+  return GetAcceleration();
 }
 
-Common::Vec3 Wiimote::GetTotalAngularVelocity()
+Common::Vec3 Wiimote::GetTotalAngularVelocity() const
 {
-  auto ang_vel = m_imu_gyroscope->GetState();
-  if (ang_vel.has_value())
-    return GetAngularVelocity(ang_vel.value());
-  else
-    return GetAngularVelocity();
+  if (const auto ang_vel = m_imu_gyroscope->GetState())
+    return GetAngularVelocity(*ang_vel);
+
+  return GetAngularVelocity();
 }
 
 Common::Matrix44 Wiimote::GetTotalTransformation() const
diff --git a/Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.h b/Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.h
index cfb1205941..8ded6f0dc4 100644
--- a/Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.h
+++ b/Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.h
@@ -114,15 +114,15 @@ public:
   std::string GetName() const override;
   void LoadDefaults(const ControllerInterface& ciface) override;
 
-  ControllerEmu::ControlGroup* GetWiimoteGroup(WiimoteGroup group);
-  ControllerEmu::ControlGroup* GetNunchukGroup(NunchukGroup group);
-  ControllerEmu::ControlGroup* GetClassicGroup(ClassicGroup group);
-  ControllerEmu::ControlGroup* GetGuitarGroup(GuitarGroup group);
-  ControllerEmu::ControlGroup* GetDrumsGroup(DrumsGroup group);
-  ControllerEmu::ControlGroup* GetTurntableGroup(TurntableGroup group);
-  ControllerEmu::ControlGroup* GetUDrawTabletGroup(UDrawTabletGroup group);
-  ControllerEmu::ControlGroup* GetDrawsomeTabletGroup(DrawsomeTabletGroup group);
-  ControllerEmu::ControlGroup* GetTaTaConGroup(TaTaConGroup group);
+  ControllerEmu::ControlGroup* GetWiimoteGroup(WiimoteGroup group) const;
+  ControllerEmu::ControlGroup* GetNunchukGroup(NunchukGroup group) const;
+  ControllerEmu::ControlGroup* GetClassicGroup(ClassicGroup group) const;
+  ControllerEmu::ControlGroup* GetGuitarGroup(GuitarGroup group) const;
+  ControllerEmu::ControlGroup* GetDrumsGroup(DrumsGroup group) const;
+  ControllerEmu::ControlGroup* GetTurntableGroup(TurntableGroup group) const;
+  ControllerEmu::ControlGroup* GetUDrawTabletGroup(UDrawTabletGroup group) const;
+  ControllerEmu::ControlGroup* GetDrawsomeTabletGroup(DrawsomeTabletGroup group) const;
+  ControllerEmu::ControlGroup* GetTaTaConGroup(TaTaConGroup group) const;
 
   void Update();
   void StepDynamics();
@@ -149,10 +149,10 @@ private:
 
   // Returns simulated accelerometer data in m/s^2.
   Common::Vec3 GetAcceleration(
-      Common::Vec3 extra_acceleration = Common::Vec3(0, 0, float(GRAVITY_ACCELERATION)));
+      Common::Vec3 extra_acceleration = Common::Vec3(0, 0, float(GRAVITY_ACCELERATION))) const;
 
   // Returns simulated gyroscope data in radians/s.
-  Common::Vec3 GetAngularVelocity(Common::Vec3 extra_angular_velocity = {});
+  Common::Vec3 GetAngularVelocity(Common::Vec3 extra_angular_velocity = {}) const;
 
   // Returns the transformation of the world around the wiimote.
   // Used for simulating camera data and for rotating acceleration data.
@@ -163,8 +163,8 @@ private:
   // Returns the world rotation from the effects of sideways/upright settings.
   Common::Matrix33 GetOrientation() const;
 
-  Common::Vec3 GetTotalAcceleration();
-  Common::Vec3 GetTotalAngularVelocity();
+  Common::Vec3 GetTotalAcceleration() const;
+  Common::Vec3 GetTotalAngularVelocity() const;
   Common::Matrix44 GetTotalTransformation() const;
 
   void HIDOutputReport(const void* data, u32 size);