support for config-specified day of the year

Globals.cpp

@@ -552,18 +552,7 @@ void Global::ConfigParse(cParser &Parser)
                 std::tm *localtime = std::localtime(&timenow);
                 Global::fMoveLight = localtime->tm_yday + 1; // numer bieżącego dnia w roku
             }
-            if (fMoveLight > 0.f) // tu jest nadal zwiększone o 1
-            { // obliczenie deklinacji wg:
-                // http://naturalfrequency.com/Tregenza_Sharples/Daylight_Algorithms/algorithm_1_11.htm
-                // Spencer J W Fourier series representation of the position of the sun Search 2 (5)
-                // 172 (1971)
-                Global::fMoveLight =
-                    M_PI / 182.5 * (Global::fMoveLight - 1.0); // numer dnia w postaci kąta
-                fSunDeclination =
-                    0.006918 - 0.3999120 * std::cos(fMoveLight) + 0.0702570 * std::sin(fMoveLight) -
-                    0.0067580 * std::cos(2 * fMoveLight) + 0.0009070 * std::sin(2 * fMoveLight) -
-                    0.0026970 * std::cos(3 * fMoveLight) + 0.0014800 * std::sin(3 * fMoveLight);
-            }
+            // TODO: calculate lights single time here for static setup. or get rid of static setup
         }
         else if (token == "smoothtraction")
         {

Texture.cpp

@@ -505,6 +505,11 @@ opengl_texture::set_filtering() {
     ::glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
     ::glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
 
+    if( GLEW_EXT_texture_filter_anisotropic ) {
+        // anisotropic filtering
+        ::glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 16.0f );
+    }
+
     bool sharpen{ false };
     for( auto const &trait : traits ) {
 

World.cpp

@@ -1513,14 +1513,14 @@ void TWorld::Update_Lights() {
     Global::DayLight.position[2] = position.z;
     auto const direction = -1.0 * Sun.getDirection();
     Global::DayLight.direction = direction;
-    auto const intensity = std::min( 2.0f * Sun.getIntensity(), 1.0f );
+    auto const intensity = std::min( 2.0f * Sun.getIntensity(), 1.25f );
 
     Global::DayLight.diffuse[ 0 ] = 255.0 / 255.0 * intensity;
     Global::DayLight.diffuse[ 1 ] = 242.0 / 255.0 * intensity;
     Global::DayLight.diffuse[ 2 ] = 231.0 / 255.0 * intensity;
 //    Global::DayLight.diffuse[ 3 ] = 1.0f;// std::min( 0.15f + intensity, 1.0f );
-    Global::DayLight.ambient[ 0 ] = 205.0 / 255.0 * intensity * 0.75f;
-    Global::DayLight.ambient[ 1 ] = 217.0 / 255.0 * intensity * 0.75f;
+    Global::DayLight.ambient[ 0 ] = 155.0 / 255.0 * intensity * 0.75f;
+    Global::DayLight.ambient[ 1 ] = 192.0 / 255.0 * intensity * 0.75f;
     Global::DayLight.ambient[ 2 ] = 231.0 / 255.0 * intensity * 0.75f;
 //    Global::DayLight.ambient[ 3 ] = 1.0f;
     /*

parser.cpp

@@ -67,6 +67,7 @@ cParser::~cParser()
 // methods
 bool cParser::getTokens(int Count, bool ToLower, const char *Break)
 {
+    tokens.clear(); // emulates old parser behaviour. TODO, TBD: allow manual reset?
     /*
      if (LoadTraction==true)
       trtest="niemaproblema"; //wczytywać

sun.cpp

@@ -285,13 +285,33 @@ int cSun::yearday( int Day, const int Month, const int Year ) {
 	return Day;
 }
 
+void cSun::daymonth( WORD &Day, WORD &Month, WORD const Year, WORD const Yearday ) {
+
+    WORD daytab[ 2 ][ 13 ] = {
+        { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
+        { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
+    };
+
+    int leap = ( Year % 4 == 0 ) && ( Year % 100 != 0 ) || ( Year % 400 == 0 );
+    WORD idx = 1;
+    while( (idx < 13) && ( Yearday <= daytab[ leap ][ idx ] )) {
+
+        ++idx;
+    }
+    Month = idx + 1;
+    Day = Yearday - daytab[ leap ][ idx ];
+}
+
 // obtains current time for calculations
 void
 cSun::time( SYSTEMTIME *Time ) {
 
     ::GetLocalTime( Time );
     // NOTE: we're currently using local time to determine day/month/year
-    // TODO: enter scenario-defined day/month/year instead.
+    if( Global::fMoveLight > 0.0 ) {
+        // TODO: enter scenario-defined day/month/year instead.
+        daymonth( Time->wDay, Time->wMonth, Time->wYear, static_cast<WORD>(Global::fMoveLight) );
+    }
     Time->wHour = GlobalTime->hh;
     Time->wMinute = GlobalTime->mm;
     Time->wSecond = std::floor( GlobalTime->mr );

sun.h

@@ -54,6 +54,8 @@ protected:
 	void irradiance();
 	// calculates day of year from given date
 	int yearday( int Day, int const Month, int const Year );
+    // calculates day and month from given day of year
+    void daymonth( WORD &Day, WORD &Month, WORD const Year, WORD const Yearday );
     // obtains current time for calculations
     void time( SYSTEMTIME *Time );