Refactoring in mwrender::Camera. enum for normal/preview/vanity mode.

apps/openmw/mwrender/camera.cpp

@@ -52,7 +52,8 @@ namespace MWRender
       mCamera(camera),
       mAnimation(nullptr),
       mFirstPersonView(true),
-      mPreviewMode(false),
+      mMode(Mode::Normal),
+      mVanityAllowed(true),
       mNearest(30.f),
       mFurthest(800.f),
       mIsNearest(false),
@@ -73,9 +74,6 @@ namespace MWRender
       mDynamicCameraDistanceEnabled(false),
       mShowCrosshairInThirdPersonMode(false)
     {
-        mVanity.enabled = false;
-        mVanity.allowed = true;
-
         mCameraDistance = mBaseCameraDistance;
 
         mUpdateCallback = new UpdateRenderCameraCallback(this);
@@ -133,9 +131,6 @@ namespace MWRender
 
     void Camera::updateCamera(osg::Camera *cam)
     {
-        if (mTrackingPtr.isEmpty())
-            return;
-
         osg::Vec3d focal, position;
         getPosition(focal, position);
 
@@ -165,11 +160,6 @@ namespace MWRender
         setPitch(pitch);
     }
 
-    void Camera::attachTo(const MWWorld::Ptr &ptr)
-    {
-        mTrackingPtr = ptr;
-    }
-
     void Camera::update(float duration, bool paused)
     {
         if (mAnimation->upperBodyReady())
@@ -193,13 +183,11 @@ namespace MWRender
 
         // only show the crosshair in game mode
         MWBase::WindowManager *wm = MWBase::Environment::get().getWindowManager();
-        wm->showCrosshair(!wm->isGuiMode() && !mVanity.enabled && !mPreviewMode
+        wm->showCrosshair(!wm->isGuiMode() && mMode != Mode::Preview && mMode != Mode::Vanity
                           && (mFirstPersonView || mShowCrosshairInThirdPersonMode));
 
-        if(mVanity.enabled)
-        {
+        if(mMode == Mode::Vanity)
             rotateCamera(0.f, osg::DegreesToRadians(3.f * duration), true);
-        }
 
         updateFocalPointOffset(duration);
 
@@ -280,9 +268,9 @@ namespace MWRender
 
     void Camera::allowVanityMode(bool allow)
     {
-        if (!allow && mVanity.enabled)
+        if (!allow && mMode == Mode::Vanity)
             toggleVanityMode(false);
-        mVanity.allowed = allow;
+        mVanityAllowed = allow;
     }
 
     bool Camera::toggleVanityMode(bool enable)
@@ -296,12 +284,12 @@ namespace MWRender
             return false;
         }
 
-        if(!mVanity.allowed && enable)
+        if (!mVanityAllowed && enable)
             return false;
 
-        if(mVanity.enabled == enable)
+        if ((mMode == Mode::Vanity) == enable)
             return true;
-        mVanity.enabled = enable;
+        mMode = enable ? Mode::Vanity : Mode::Normal;
 
         processViewChange();
         return true;
@@ -312,10 +300,10 @@ namespace MWRender
         if (mFirstPersonView && !mAnimation->upperBodyReady())
             return;
 
-        if(mPreviewMode == enable)
+        if((mMode == Mode::Preview) == enable)
             return;
 
-        mPreviewMode = enable;
+        mMode = enable ? Mode::Preview : Mode::Normal;
         processViewChange();
     }
 
@@ -350,26 +338,21 @@ namespace MWRender
 
     void Camera::updateBaseCameraDistance(float dist, bool adjust)
     {
-        if(mFirstPersonView && !mPreviewMode && !mVanity.enabled)
+        if (isFirstPerson())
             return;
 
         if (adjust)
             dist += std::min(mCameraDistance - getCameraDistanceCorrection(), mBaseCameraDistance);
 
         mIsNearest = dist <= mNearest;
-        dist = osg::clampBetween(dist, mNearest, mFurthest);
-
-        if (!mFirstPersonView)
-        {
-            mBaseCameraDistance = dist;
-            Settings::Manager::setFloat("third person camera distance", "Camera", dist);
-        }
+        mBaseCameraDistance = osg::clampBetween(dist, mNearest, mFurthest);
+        Settings::Manager::setFloat("third person camera distance", "Camera", mBaseCameraDistance);
         setCameraDistance();
     }
 
     void Camera::setCameraDistance(float dist, bool adjust)
     {
-        if(mFirstPersonView && !mPreviewMode && !mVanity.enabled)
+        if (isFirstPerson())
             return;
         if (adjust)
             dist += mCameraDistance;
@@ -392,7 +375,7 @@ namespace MWRender
     void Camera::setCameraDistance()
     {
         mFocalPointAdjustment = osg::Vec3d();
-        if (mFirstPersonView)
+        if (isFirstPerson())
             return;
         mCameraDistance = mBaseCameraDistance + getCameraDistanceCorrection();
         if (mDynamicCameraDistanceEnabled)

apps/openmw/mwrender/camera.hpp

@@ -23,6 +23,9 @@ namespace MWRender
     /// \brief Camera control
     class Camera
     {
+    public:
+        enum class Mode { Normal, Vanity, Preview };
+
     private:
         MWWorld::Ptr mTrackingPtr;
         osg::ref_ptr<const osg::Node> mTrackingNode;
@@ -33,15 +36,13 @@ namespace MWRender
         NpcAnimation *mAnimation;
 
         bool mFirstPersonView;
-        bool mPreviewMode;
+        Mode mMode;
+        bool mVanityAllowed;
+
         float mNearest;
         float mFurthest;
         bool mIsNearest;
 
-        struct {
-            bool enabled, allowed;
-        } mVanity;
-
         float mHeight, mBaseCameraDistance;
         float mPitch, mYaw;
 
@@ -78,6 +79,8 @@ namespace MWRender
         Camera(osg::Camera* camera);
         ~Camera();
 
+        /// Attach camera to object
+        void attachTo(const MWWorld::Ptr &ptr) { mTrackingPtr = ptr; }
         MWWorld::Ptr getTrackingPtr() const { return mTrackingPtr; }
 
         void setFocalPointTransitionSpeed(float v) { mFocalPointTransitionSpeedCoef = v; }
@@ -102,9 +105,6 @@ namespace MWRender
         float getPitch() const { return mPitch; }
         void setPitch(float angle);
 
-        /// Attach camera to object
-        void attachTo(const MWWorld::Ptr &);
-
         /// @param Force view mode switch, even if currently not allowed by the animation.
         void toggleViewMode(bool force=false);
 
@@ -117,8 +117,7 @@ namespace MWRender
         /// \brief Lowers the camera for sneak.
         void setSneakOffset(float offset);
 
-        bool isFirstPerson() const
-        { return !(mVanity.enabled || mPreviewMode || !mFirstPersonView); }
+        bool isFirstPerson() const { return mFirstPersonView && mMode == Mode::Normal; }
 
         void processViewChange();
 
@@ -147,8 +146,8 @@ namespace MWRender
         /// Stores focal and camera world positions in passed arguments
         void getPosition(osg::Vec3d &focal, osg::Vec3d &camera) const;
 
-        bool isVanityOrPreviewModeEnabled() const { return mPreviewMode || mVanity.enabled; }
-        bool isVanityModeEnabled() const { return mVanity.enabled; }
+        bool isVanityOrPreviewModeEnabled() const { return mMode != Mode::Normal; }
+        Mode getMode() const { return mMode; }
 
         bool isNearest() const { return mIsNearest; }
     };

apps/openmw/mwrender/viewovershoulder.cpp

@@ -51,12 +51,14 @@ namespace MWRender
         if (oldMode == mMode)
             return;
 
-        if (mCamera->isVanityOrPreviewModeEnabled())
-            mCamera->setFocalPointTransitionSpeed(mCamera->isVanityModeEnabled() ? 0.2 : 1);
-        else if (oldMode == Mode::Combat || mMode == Mode::Combat)
+        if (mCamera->getMode() == Camera::Mode::Vanity)
+            // Player doesn't touch controls for a long time. Transition should be very slow.
+            mCamera->setFocalPointTransitionSpeed(0.2f);
+        else if ((oldMode == Mode::Combat || mMode == Mode::Combat) && mCamera->getMode() == Camera::Mode::Normal)
+            // Transition to/from combat mode and we are not it preview mode. Should be fast.
             mCamera->setFocalPointTransitionSpeed(5.f);
         else
-            mCamera->setFocalPointTransitionSpeed(1.f);
+            mCamera->setFocalPointTransitionSpeed(1.f);  // Default transition speed.
 
         switch (mMode)
         {
@@ -98,4 +100,4 @@ namespace MWRender
             mMode = mDefaultShoulderIsRight ? Mode::RightShoulder : Mode::LeftShoulder;
     }
 
-}
+}