player arrow rotated correctly

apps/openmw/mwgui/layouts.hpp

@@ -14,6 +14,8 @@
 #include "../mwmechanics/stat.hpp"
 #include "window_base.hpp"
 
+#include <cmath>
+
 /*
   This file contains classes corresponding to window layouts
   defined in resources/mygui/ *.xml.
@@ -144,11 +146,16 @@ namespace MWGui
       mLocalMap->setViewOffset(pos);
 
       mPlayerArrow->setPosition(MyGUI::IntPoint(x*512-16, y*512-16));
+    }
 
+    void setPlayerDir(const float x, const float y)
+    {
+      if (!mVisible) return;
       MyGUI::ISubWidget* main = mPlayerArrow->getSubWidgetMain();
       MyGUI::RotatingSkin* rotatingSubskin = main->castType<MyGUI::RotatingSkin>();
       rotatingSubskin->setCenter(MyGUI::IntPoint(16,16));
-      rotatingSubskin->setAngle(3.141);
+      float angle = std::atan2(x,y);
+      rotatingSubskin->setAngle(angle);
     }
 
     void onDragStart(MyGUI::Widget* _sender, int _left, int _top, MyGUI::MouseButton _id)

apps/openmw/mwgui/window_manager.cpp

@@ -429,3 +429,8 @@ void WindowManager::setPlayerPos(const float x, const float y)
 {
     map->setPlayerPos(x,y);
 }
+
+void WindowManager::setPlayerDir(const float x, const float y)
+{
+    map->setPlayerDir(x,y);
+}

apps/openmw/mwgui/window_manager.hpp

@@ -155,6 +155,7 @@ namespace MWGui
 
     void changeCell(MWWorld::Ptr::CellStore* cell); ///< change the active cell
     void setPlayerPos(const float x, const float y); ///< set player position in map space
+    void setPlayerDir(const float x, const float y); ///< set player view direction in map space
     
     void setInteriorMapTexture(const int x, const int y);
     ///< set the index of the map texture that should be used (for interiors)

apps/openmw/mwrender/localmap.cpp

@@ -225,7 +225,7 @@ void LocalMap::render(const float x, const float y,
     mRendering->getScene()->setFog(FOG_LINEAR, clr, 0, fStart, fEnd);
 }
 
-void LocalMap::setPlayerPosition (const Ogre::Vector3& position)
+void LocalMap::updatePlayer (const Ogre::Vector3& position, const Ogre::Vector3& direction)
 {
     if (sFogOfWarSkip != 0)
     {
@@ -276,6 +276,7 @@ void LocalMap::setPlayerPosition (const Ogre::Vector3& position)
         texName = mInteriorName + "_" + coordStr(x,y);
     }
     mEnvironment->mWindowManager->setPlayerPos(u, v);
+    mEnvironment->mWindowManager->setPlayerDir(direction.x, -direction.z);
 
     // explore radius (squared)
     const float sqrExploreRadius = 0.01 * sFogOfWarResolution*sFogOfWarResolution;

apps/openmw/mwrender/localmap.hpp

@@ -40,12 +40,13 @@ namespace MWRender
                         Ogre::AxisAlignedBox bounds);
 
         /**
-         * Set the position of the player.
+         * Set the position & direction of the player.
          * @remarks This is used to draw a "fog of war" effect
          * to hide areas on the map the player has not discovered yet.
          * @param position (OGRE coordinates)
+         * @param view direction (OGRE coordinates)
          */
-        void setPlayerPosition (const Ogre::Vector3& position);
+        void updatePlayer (const Ogre::Vector3& position, const Ogre::Vector3& direction);
 
         /**
          * Save the fog of war for the current cell to disk.

apps/openmw/mwrender/renderingmanager.cpp

@@ -141,7 +141,7 @@ void RenderingManager::update (float duration){
     
     mRendering.update(duration);
 
-    mLocalMap->setPlayerPosition( mRendering.getCamera()->getRealPosition() );
+    mLocalMap->updatePlayer( mRendering.getCamera()->getRealPosition(), mRendering.getCamera()->getRealDirection() );
 }
 
 void RenderingManager::skyEnable ()