basic scenery data export in legacy text format

AnimModel.cpp

@@ -423,13 +423,6 @@ TAnimModel::~TAnimModel()
     SafeDelete(pRoot);
 }
 
-bool TAnimModel::Init(TModel3d *pNewModel)
-{
-    fBlinkTimer = double(Random(1000 * fOffTime)) / (1000 * fOffTime);
-    pModel = pNewModel;
-    return (pModel != nullptr);
-}
-
 bool TAnimModel::Init(std::string const &asName, std::string const &asReplacableTexture)
 {
     if( asReplacableTexture.substr( 0, 1 ) == "*" ) {
@@ -445,17 +438,21 @@ bool TAnimModel::Init(std::string const &asName, std::string const &asReplacable
         m_materialdata.textures_alpha = 0x31310031;
     }
     else{
-        // tekstura nieprzezroczysta - nie renderować w cyklu
+        // tekstura nieprzezroczysta - nie renderować w cyklu przezroczystych
         m_materialdata.textures_alpha = 0x30300030;
     }
-    // przezroczystych
+    
-    return (Init(TModelsManager::GetModel(asName)));
+    fBlinkTimer = double( Random( 1000 * fOffTime ) ) / ( 1000 * fOffTime );
+
+    pModel = TModelsManager::GetModel( asName );
+    return ( pModel != nullptr );
 }
 
 bool TAnimModel::Load(cParser *parser, bool ter)
 { // rozpoznanie wpisu modelu i ustawienie świateł
 	std::string name = parser->getToken<std::string>();
-    std::string texture = parser->getToken<std::string>(false); // tekstura (zmienia na małe)
+    std::string texture = parser->getToken<std::string>(); // tekstura (zmienia na małe)
+    replace_slashes( name );
     if (!Init( name, texture ))
     {
         if (name != "notload")
@@ -504,7 +501,7 @@ bool TAnimModel::Load(cParser *parser, bool ter)
 		while( ( token != "" )
 			&& ( token != "endmodel" ) ) {
 
-			LightSet( i, std::stod( token ) ); // stan światła jest liczbą z ułamkiem
+			LightSet( i, std::stof( token ) ); // stan światła jest liczbą z ułamkiem
             ++i;
 
 			token = "";
@@ -563,15 +560,6 @@ void TAnimModel::RaAnimate( unsigned int const Framestamp ) {
     m_framestamp = Framestamp;
 };
 
-// calculates piece's bounding radius
-void
-TAnimModel::radius_() {
-
-    if( pModel != nullptr ) {
-        m_area.radius = pModel->bounding_radius();
-    }
-}
-
 void TAnimModel::RaPrepare()
 { // ustawia światła i animacje we wzorcu modelu przed renderowaniem egzemplarza
     bool state; // stan światła
@@ -584,7 +572,11 @@ void TAnimModel::RaPrepare()
             state = ( fBlinkTimer < fOnTime );
             break;
         case ls_Dark: // zapalone, gdy ciemno
-            state = ( Global.fLuminance <= ( lsLights[i] - 3.0 ) );
+            state = (
+                Global.fLuminance <= (
+                    lsLights[i] == 3.f ?
+                        DefaultDarkThresholdLevel :
+                        ( lsLights[i] - 3.f ) ) );
             break;
         default: // zapalony albo zgaszony
             state = (lightmode == ls_On);
@@ -780,15 +772,17 @@ void TAnimModel::LightSet(int const n, float const v)
         }
         case ls_Dark: {
             // zapalenie świateł zależne od oświetlenia scenerii
-            if( v == 3.0 ) {
+/*
+            if( v == 3.f ) {
                 // standardowy próg zaplania
-                lsLights[ n ] = 3.0 + DefaultDarkThresholdLevel;
+                lsLights[ n ] = 3.f + DefaultDarkThresholdLevel;
             } 
+*/
             break;
         }
     }
 };
-//---------------------------------------------------------------------------
+
 void TAnimModel::AnimUpdate(double dt)
 { // wykonanie zakolejkowanych animacji, nawet gdy modele nie są aktualnie wyświetlane
     TAnimContainer *p = TAnimModel::acAnimList;
@@ -798,4 +792,72 @@ void TAnimModel::AnimUpdate(double dt)
         p = p->acAnimNext; // na razie bez usuwania z listy, bo głównie obrotnica na nią wchodzi
     }
 };
+
+// radius() subclass details, calculates node's bounding radius
+float
+TAnimModel::radius_() {
+
+    return (
+        pModel ?
+            pModel->bounding_radius() :
+            0.f );
+}
+
+// serialize() subclass details, sends content of the subclass to provided stream
+void
+TAnimModel::serialize_( std::ostream &Output ) const {
+    
+    // TODO: implement
+}
+// deserialize() subclass details, restores content of the subclass from provided stream
+void
+TAnimModel::deserialize_( std::istream &Input ) {
+
+    // TODO: implement
+}
+
+// export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+void
+TAnimModel::export_as_text_( std::ostream &Output ) const {
+    // header
+    Output << "model ";
+    // location and rotation
+    Output
+        << location().x << ' '
+        << location().y << ' '
+        << location().z << ' '
+        << vAngle.y << ' ';
+    // 3d shape
+    auto modelfile { (
+        pModel ?
+            pModel->NameGet() + ".t3d" : // rainsted requires model file names to include an extension
+            "none" ) };
+    if( modelfile.find( szModelPath ) == 0 ) {
+        // don't include 'models/' in the path
+        modelfile.erase( 0, std::string{ szModelPath }.size() );
+    }
+    Output << modelfile << ' ';
+    // texture
+    auto texturefile { (
+        m_materialdata.replacable_skins[ 1 ] != null_handle ?
+            GfxRenderer.Material( m_materialdata.replacable_skins[ 1 ] ).name :
+            "none" ) };
+    if( texturefile.find( szTexturePath ) == 0 ) {
+        // don't include 'textures/' in the path
+        texturefile.erase( 0, std::string{ szTexturePath }.size() );
+    }
+    Output << texturefile << ' ';
+    // light submodels activation configuration
+    if( iNumLights > 0 ) {
+        Output << "lights ";
+        for( int lightidx = 0; lightidx < iNumLights; ++lightidx ) {
+            Output << lsLights[ lightidx ] << ' ';
+        }
+    }
+    // footer
+    Output
+        << "endmodel"
+        << "\n";
+}
+
 //---------------------------------------------------------------------------

AnimModel.h

@@ -122,7 +122,7 @@ class TAnimAdvanced
 };
 
 // opakowanie modelu, określające stan egzemplarza
-class TAnimModel : public editor::basic_node {
+class TAnimModel : public scene::basic_node {
 
     friend class opengl_renderer;
 
@@ -133,15 +133,12 @@ public:
     ~TAnimModel();
 // methods
     static void AnimUpdate( double dt );
-    bool Init(TModel3d *pNewModel);
     bool Init(std::string const &asName, std::string const &asReplacableTexture);
     bool Load(cParser *parser, bool ter = false);
     TAnimContainer * AddContainer(std::string const &Name);
     TAnimContainer * GetContainer(std::string const &Name = "");
     void RaAnglesSet( glm::vec3 Angles ) {
-        vAngle.x = Angles.x;
+        vAngle = { Angles }; };
-        vAngle.y = Angles.y;
-        vAngle.z = Angles.z; };
     void LightSet( int const n, float const v );
     void AnimationVND( void *pData, double a, double b, double c, double d );
     bool TerrainLoaded();
@@ -159,16 +156,20 @@ public:
 // members
     static TAnimContainer *acAnimList; // lista animacji z eventem, które muszą być przeliczane również bez wyświetlania
 
-protected:
-    // calculates piece's bounding radius
-    void
-        radius_();
-
 private:
 // methods
     void RaPrepare(); // ustawienie animacji egzemplarza na wzorcu
     void RaAnimate( unsigned int const Framestamp ); // przeliczenie animacji egzemplarza
     void Advanced();
+    // radius() subclass details, calculates node's bounding radius
+    float radius_();
+    // serialize() subclass details, sends content of the subclass to provided stream
+    void serialize_( std::ostream &Output ) const;
+    // deserialize() subclass details, restores content of the subclass from provided stream
+    void deserialize_( std::istream &Input );
+    // export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+    void export_as_text_( std::ostream &Output ) const;
+
 // members
     TAnimContainer *pRoot { nullptr }; // pojemniki sterujące, tylko dla aniomowanych submodeli
     TModel3d *pModel { nullptr };

EvLaunch.cpp

@@ -194,11 +194,90 @@ bool TEventLauncher::IsGlobal() const {
           && ( dRadius < 0.0 ) ); // bez ograniczenia zasięgu
 }
 
-// calculates node's bounding radius
+// radius() subclass details, calculates node's bounding radius
-void
+float
 TEventLauncher::radius_() {
 
-    m_area.radius = std::sqrt( dRadius );
+    return std::sqrt( dRadius );
+}
+
+// serialize() subclass details, sends content of the subclass to provided stream
+void
+TEventLauncher::serialize_( std::ostream &Output ) const {
+
+    // TODO: implement
+}
+// deserialize() subclass details, restores content of the subclass from provided stream
+void
+TEventLauncher::deserialize_( std::istream &Input ) {
+
+    // TODO: implement
+}
+
+// export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+void
+TEventLauncher::export_as_text_( std::ostream &Output ) const {
+    // header
+    Output << "eventlauncher ";
+    // location
+    Output
+        << location().x << ' '
+        << location().y << ' '
+        << location().z << ' ';
+    // activation radius
+    Output
+        << ( dRadius > 0 ? std::sqrt( dRadius ) : dRadius ) << ' ';
+    // activation key
+    if( iKey != 0 ) {
+        auto const key { iKey & 0xff };
+        auto const modifier { ( iKey & 0xff00 ) >> 8 };
+        if( ( key >= GLFW_KEY_A ) && ( key <= GLFW_KEY_Z ) ) {
+            Output << static_cast<char>(( 'A' + key - GLFW_KEY_A + ( ( modifier & 1 ) == 0 ? 32 : 0 ) )) << ' ';
+        }
+        else if( ( key >= GLFW_KEY_0 ) && ( key <= GLFW_KEY_9 ) ) {
+            Output << static_cast<char>(( '0' + key - GLFW_KEY_0 )) << ' ';
+        }
+    }
+    else {
+        Output << "none ";
+    }
+    // activation interval or hour
+    if( DeltaTime != 0 ) {
+        // cyclical launcher
+        Output << -DeltaTime << ' ';
+    }
+    else {
+        // single activation at specified time
+        if( ( iHour < 0 )
+         && ( iMinute < 0 ) ) {
+            Output << DeltaTime << ' ';
+        }
+        else {
+        // NOTE: activation hour might be affected by user-requested time offset
+            auto const timeoffset{ static_cast<int>( Global.ScenarioTimeOffset * 60 ) };
+            auto const adjustedtime{ clamp_circular( iHour * 60 + iMinute - timeoffset, 24 * 60 ) };
+            Output
+                << ( adjustedtime / 60 ) % 24
+                << ( adjustedtime % 60 )
+                << ' ';
+        }
+    }
+    // associated event(s)
+    Output << ( asEvent1Name.empty() ? "none" : asEvent1Name ) << ' ';
+    Output << ( asEvent2Name.empty() ? "none" : asEvent2Name ) << ' ';
+    if( false == asMemCellName.empty() ) {
+        // conditional event
+        Output
+            << "condition "
+            << asMemCellName << ' '
+            << szText << ' '
+            << ( ( iCheckMask & conditional_memval1 ) != 0 ? to_string( fVal1 ) : "*" ) << ' '
+            << ( ( iCheckMask & conditional_memval2 ) != 0 ? to_string( fVal2 ) : "*" ) << ' ';
+    }
+    // footer
+    Output
+        << "end"
+        << "\n";
 }
 
 //---------------------------------------------------------------------------

EvLaunch.h

@@ -14,7 +14,7 @@ http://mozilla.org/MPL/2.0/.
 #include "Classes.h"
 #include "scenenode.h"
 
-class TEventLauncher : public editor::basic_node {
+class TEventLauncher : public scene::basic_node {
 
 public:
 // constructor
@@ -37,12 +37,17 @@ public:
     int iCheckMask { 0 };
     double dRadius { 0.0 };
 
-protected:
-    // calculates node's bounding radius
-    void
-        radius_();
-
 private:
+// methods
+    // radius() subclass details, calculates node's bounding radius
+    float radius_();
+    // serialize() subclass details, sends content of the subclass to provided stream
+    void serialize_( std::ostream &Output ) const;
+    // deserialize() subclass details, restores content of the subclass from provided stream
+    void deserialize_( std::istream &Input );
+    // export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+    void export_as_text_( std::ostream &Output ) const;
+
 // members
     int iKey { 0 };
     double DeltaTime { -1.0 };

Event.cpp

@@ -304,9 +304,9 @@ void TEvent::Load(cParser *parser, Math3D::vector3 const &org)
             if (token.find('#') != std::string::npos)
 				token.erase(token.find('#')); // obcięcie unikatowości
             win1250_to_ascii( token ); // get rid of non-ascii chars
-            bEnabled = false; // nie do kolejki (dla SetVelocity też, ale jak jest do toru
-            // dowiązany)
             Params[6].asCommand = cm_PassengerStopPoint;
+            // nie do kolejki (dla SetVelocity też, ale jak jest do toru dowiązany)
+            bEnabled = false;
         }
         else if (token == "SetVelocity")
         {
@@ -328,11 +328,6 @@ void TEvent::Load(cParser *parser, Math3D::vector3 const &org)
             bEnabled = false;
             Params[6].asCommand = cm_ShuntVelocity;
         }
-        //else if (str == "SetProximityVelocity")
-        //{
-        //    bEnabled = false;
-        //    Params[6].asCommand = cm_SetProximityVelocity;
-        //}
         else if (token == "OutsideStation")
         {
             bEnabled = false; // ma być skanowny, aby AI nie przekraczało W5
@@ -391,6 +386,11 @@ void TEvent::Load(cParser *parser, Math3D::vector3 const &org)
                 }
             }
         } while( token.compare( "endevent" ) != 0 );
+        while( paramidx < 8 ) {
+            // HACK: mark unspecified lights with magic value
+            Params[ paramidx ].asdouble = -2.0;
+            ++paramidx;
+        }
         break;
     }
     case tp_Visible: // zmiana wyświetlania obiektu
@@ -403,7 +403,7 @@ void TEvent::Load(cParser *parser, Math3D::vector3 const &org)
     case tp_Velocity:
         parser->getTokens();
         *parser >> token;
-        Params[0].asdouble = atof(token.c_str()) * 0.28;
+        Params[0].asdouble = atof(token.c_str()) * ( 1000.0 / 3600.0 );
         parser->getTokens();
         *parser >> token;
         break;
@@ -420,7 +420,6 @@ void TEvent::Load(cParser *parser, Math3D::vector3 const &org)
         *parser >> token;
         break;
     case tp_Exit:
-        asNodeName = ExchangeCharInString( asNodeName, '_', ' ' );
         parser->getTokens();
         *parser >> token;
         break;
@@ -605,6 +604,191 @@ void TEvent::Load(cParser *parser, Math3D::vector3 const &org)
     }
 };
 
+// sends basic content of the class in legacy (text) format to provided stream
+void
+TEvent::export_as_text( std::ostream &Output ) const {
+
+    if( Type == tp_Unknown ) { return; }
+
+    // header
+    Output << "event ";
+    // name
+    Output << asName << ' ';
+    // type
+    std::vector<std::string> const types {
+        "unknown", "sound", "exit", "disable", "velocity", "animation", "lights",
+        "updatevalues", "getvalues", "putvalues", "switch", "dynvel", "trackvel",
+        "multiple", "addvalues", "copyvalues", "whois", "logvalues", "visible",
+        "voltage", "message", "friction" };
+    Output << types[ Type ] << ' ';
+    // delay
+    Output << fDelay << ' ';
+    // associated node
+    Output << ( asNodeName.empty() ? "none" : asNodeName ) << ' ';
+    // type-specific attributes
+    switch( Type ) {
+        case tp_AddValues:
+        case tp_UpdateValues: {
+            Output
+                << ( ( iFlags & update_memstring ) == 0 ? "*" :            Params[ 0 ].asText ) << ' '
+                << ( ( iFlags & update_memval1 )   == 0 ? "*" : to_string( Params[ 1 ].asdouble ) ) << ' '
+                << ( ( iFlags & update_memval2 )   == 0 ? "*" : to_string( Params[ 2 ].asdouble ) ) << ' ';
+            break;
+        }
+        case tp_CopyValues: {
+            // NOTE: there's no way to get the original parameter value if it doesn't point to existing memcell
+            Output
+                << ( Params[ 9 ].asMemCell == nullptr ? "none" : Params[ 9 ].asMemCell->name() ) << ' '
+                << ( iFlags & ( update_memstring | update_memval1 | update_memval2 ) ) << ' ';
+            break;
+        }
+        case tp_PutValues: {
+            Output
+                // location
+                << Params[ 3 ].asdouble << ' '
+                << Params[ 4 ].asdouble << ' '
+                << Params[ 5 ].asdouble << ' '
+                // command
+                << Params[ 0 ].asText << ' '
+                << Params[ 1 ].asdouble << ' '
+                << Params[ 2 ].asdouble << ' ';
+            break;
+        }
+        case tp_Multiple: {
+            // NOTE: conditional_anyelse won't work when event cap is removed
+            bool hasconditionalelse { false };
+            for( auto eventidx = 0; eventidx < 8; ++eventidx ) {
+                if( Params[ eventidx ].asEvent == nullptr ) { continue; }
+                if( ( iFlags & ( conditional_else << eventidx ) ) == 0 ) {
+                    Output << Params[ eventidx ].asEvent->asName << ' ';
+                }
+                else {
+                    // this event is executed as part of the 'else' block
+                    hasconditionalelse = true;
+                }
+            }
+            // optional 'else' block
+            if( true == hasconditionalelse ) {
+                Output << "else ";
+                for( auto eventidx = 0; eventidx < 8; ++eventidx ) {
+                    if( Params[ eventidx ].asEvent == nullptr ) { continue; }
+                    if( ( iFlags & ( conditional_else << eventidx ) ) != 0 ) {
+                        Output << Params[ eventidx ].asEvent->asName << ' ';
+                    }
+                }
+            }
+            break;
+        }
+        case tp_Visible: {
+            Output << Params[ 0 ].asInt << ' ';
+            break;
+        }
+        case tp_Switch: {
+            Output << Params[ 0 ].asInt << ' ';
+            if( ( Params[ 1 ].asdouble != -1.0 )
+            ||  ( Params[ 2 ].asdouble != -1.0 ) ) {
+                Output << Params[ 1 ].asdouble << ' ';
+            }
+            if( Params[ 2 ].asdouble != -1.0 ) {
+                Output << Params[ 2 ].asdouble << ' ';
+            }
+            break;
+        }
+        case tp_Lights: {
+            auto lightidx { 0 };
+            while( ( lightidx < iMaxNumLights )
+                && ( Params[ lightidx ].asdouble > -2.0 ) ) {
+                Output << Params[ lightidx ].asdouble << ' ';
+                ++lightidx;
+            }
+            break;
+        }
+        case tp_Animation: {
+            // animation type
+            Output << (
+                Params[ 0 ].asInt == 1 ? "rotate" :
+                Params[ 0 ].asInt == 2 ? "translate" :
+                // NOTE: .vmd animation doesn't preserve file name, can't be exported. TODO: fix this
+                Params[ 0 ].asInt == 8 ? "digital" :
+                "none" )
+                << ' ';
+            // submodel
+            Output << (
+                Params[ 9 ].asAnimContainer != nullptr ?
+                    Params[ 9 ].asAnimContainer->NameGet() :
+                    "none" ) << ' ';
+            // animation parameters
+            Output
+                << Params[ 1 ].asdouble << ' '
+                << Params[ 2 ].asdouble << ' '
+                << Params[ 3 ].asdouble << ' '
+                << Params[ 4 ].asdouble << ' ';
+            break;
+        }
+        case tp_Sound: {
+            // playback mode
+            Output << Params[ 0 ].asInt << ' ';
+            // optional radio channel
+            if( Params[ 1 ].asdouble > 0.0 ) {
+                Output << Params[ 1 ].asdouble << ' ';
+            }
+            break;
+        }
+        case tp_DynVel:
+        case tp_TrackVel:
+        case tp_Voltage:
+        case tp_Friction: {
+            Output << Params[ 0 ].asdouble << ' ';
+            break;
+        }
+        case tp_Velocity: {
+            Output << Params[ 0 ].asdouble * ( 3600.0 / 1000.0 ) << ' ';
+            break;
+        }
+        case tp_WhoIs: {
+            Output
+                << ( iFlags & ( update_memstring | update_memval1 | update_memval2 ) ) << ' ';
+            break;
+        }
+        default: {
+            break;
+        }
+    }
+    // optional conditions
+    // NOTE: for flexibility condition check and export is performed for all event types rather than only for these which support it currently
+    auto const isconditional { ( conditional_trackoccupied | conditional_trackfree | conditional_propability | conditional_memcompare ) };
+    if( ( ( iFlags & isconditional ) != 0 ) ) {
+        Output << "condition ";
+        if( ( iFlags & conditional_trackoccupied ) != 0 ) {
+            Output << "trackoccupied ";
+        }
+        else if( ( iFlags & conditional_trackfree ) != 0 ) {
+            Output << "trackfree ";
+        }
+        else if( ( iFlags & conditional_propability ) != 0 ) {
+            Output
+                << "propability "
+                << Params[ 10 ].asdouble << ' ';
+        }
+        else if( ( iFlags & conditional_memcompare ) != 0 ) {
+            Output
+                << "memcompare "
+                << ( ( iFlags & conditional_memstring ) == 0 ? "*" :            Params[ 10 ].asText ) << ' '
+                << ( ( iFlags & conditional_memval1 )   == 0 ? "*" : to_string( Params[ 11 ].asdouble ) ) << ' '
+                << ( ( iFlags & conditional_memval2 )   == 0 ? "*" : to_string( Params[ 12 ].asdouble ) ) << ' ';
+        }
+    }
+    if( fRandomDelay != 0.0 ) {
+        Output
+            << "randomdelay "
+            << fRandomDelay << ' ';
+    }
+    // footer
+    Output
+        << "endevent"
+        << "\n";
+}
+
 void TEvent::AddToQuery( TEvent *Event, TEvent *&Start ) {
 
     TEvent *target( Start );
@@ -1002,6 +1186,10 @@ event_manager::CheckQuery() {
             case tp_Lights: {
                 if( m_workevent->Params[ 9 ].asModel ) {
                     for( i = 0; i < iMaxNumLights; ++i ) {
+                        if( m_workevent->Params[ i ].asdouble == -2.0 ) {
+                            // processed all supplied values, bail out
+                            break;
+                        }
                         if( m_workevent->Params[ i ].asdouble >= 0 ) {
                             // -1 zostawia bez zmiany
                             m_workevent->Params[ 9 ].asModel->LightSet(
@@ -1013,8 +1201,8 @@ event_manager::CheckQuery() {
                 break;
             }
             case tp_Visible: {
-                if( m_workevent->Params[ 9 ].asEditorNode )
+                if( m_workevent->Params[ 9 ].asSceneNode )
-                    m_workevent->Params[ 9 ].asEditorNode->visible( m_workevent->Params[ 0 ].asInt > 0 );
+                    m_workevent->Params[ 9 ].asSceneNode->visible( m_workevent->Params[ 0 ].asInt > 0 );
                 break;
             }
             case tp_Velocity: {
@@ -1022,8 +1210,12 @@ event_manager::CheckQuery() {
                 break;
             }
             case tp_Exit: {
-                MessageBox( 0, m_workevent->asNodeName.c_str(), " THE END ", MB_OK );
+                // wyłączenie takie samo jak sekwencja F10 -> Y
-                Global.iTextMode = -1; // wyłączenie takie samo jak sekwencja F10 -> Y
+                MessageBox(
+                    0,
+                    ExchangeCharInString( m_workevent->asNodeName, '_', ' ' ).c_str(),
+                    " THE END ",
+                    MB_OK );
                 return false;
             }
             case tp_Sound: {
@@ -1404,7 +1596,6 @@ event_manager::InitEvents() {
             else {
                 ErrorLog( "Bad event: animation event \"" + event->asName + "\" cannot find model instance \"" + event->asNodeName + "\"" );
             }
-            event->asNodeName = "";
             break;
         }
         case tp_Lights: {
@@ -1414,12 +1605,11 @@ event_manager::InitEvents() {
                 event->Params[ 9 ].asModel = instance;
             else
                 ErrorLog( "Bad event: lights event \"" + event->asName + "\" cannot find model instance \"" + event->asNodeName + "\"" );
-            event->asNodeName = "";
             break;
         }
         case tp_Visible: {
             // ukrycie albo przywrócenie obiektu
-            editor::basic_node *node = simulation::Instances.find( event->asNodeName ); // najpierw model
+            scene::basic_node *node = simulation::Instances.find( event->asNodeName ); // najpierw model
             if( node == nullptr ) {
                 // albo tory?
                 node = simulation::Paths.find( event->asNodeName );
@@ -1429,12 +1619,11 @@ event_manager::InitEvents() {
                 node = simulation::Traction.find( event->asNodeName );
             }
             if( node != nullptr )
-                event->Params[ 9 ].asEditorNode = node;
+                event->Params[ 9 ].asSceneNode = node;
             else {
                 event->m_ignored = true;
                 ErrorLog( "Bad event: visibility event \"" + event->asName + "\" cannot find item \"" + event->asNodeName + "\"" );
             }
-            event->asNodeName = "";
             break;
         }
         case tp_Switch: {
@@ -1460,7 +1649,6 @@ event_manager::InitEvents() {
             else {
                 ErrorLog( "Bad event: switch event \"" + event->asName + "\" cannot find track \"" + event->asNodeName + "\"" );
             }
-            event->asNodeName = "";
             break;
         }
         case tp_Sound: {
@@ -1470,7 +1658,6 @@ event_manager::InitEvents() {
                 event->Params[ 9 ].tsTextSound = sound;
             else
                 ErrorLog( "Bad event: sound event \"" + event->asName + "\" cannot find static sound \"" + event->asNodeName + "\"" );
-            event->asNodeName = "";
             break;
         }
         case tp_TrackVel: {
@@ -1486,7 +1673,6 @@ event_manager::InitEvents() {
                     ErrorLog( "Bad event: track velocity event \"" + event->asName + "\" cannot find track \"" + event->asNodeName + "\"" );
                 }
             }
-            event->asNodeName = "";
             break;
         }
         case tp_DynVel: {
@@ -1500,7 +1686,6 @@ event_manager::InitEvents() {
                 else
                     ErrorLog( "Bad event: vehicle velocity event \"" + event->asName + "\" cannot find vehicle \"" + event->asNodeName + "\"" );
             }
-            event->asNodeName = "";
             break;
         }
         case tp_Multiple: {
@@ -1548,7 +1733,6 @@ event_manager::InitEvents() {
                 else
                     ErrorLog( "Bad event: voltage event \"" + event->asName + "\" cannot find power source \"" + event->asNodeName + "\"" );
             }
-            event->asNodeName = "";
             break;
         }
         case tp_Message: {
@@ -1597,6 +1781,20 @@ event_manager::InitLaunchers() {
     }
 }
 
+// sends basic content of the class in legacy (text) format to provided stream
+void
+event_manager::export_as_text( std::ostream &Output ) const {
+
+    Output << "// events\n";
+    for( auto const *event : m_events ) {
+        event->export_as_text( Output );
+    }
+    Output << "// event launchers\n";
+    for( auto const *launcher : m_launchers.sequence() ) {
+        launcher->export_as_text( Output );
+    }
+}
+
 // legacy method, verifies condition for specified event
 bool
 event_manager::EventConditon( TEvent *Event ) {

Event.h

@@ -17,7 +17,6 @@ http://mozilla.org/MPL/2.0/.
 enum TEventType {
     tp_Unknown,
     tp_Sound,
-    tp_SoundPos,
     tp_Exit,
     tp_Disable,
     tp_Velocity,
@@ -31,7 +30,6 @@ enum TEventType {
     tp_TrackVel,
     tp_Multiple,
     tp_AddValues,
-//    tp_Ignored, // NOTE: refactored to separate flag
     tp_CopyValues,
     tp_WhoIs,
     tp_LogValues,
@@ -61,7 +59,7 @@ union TParam
 {
     void *asPointer;
     TMemCell *asMemCell;
-    editor::basic_node *asEditorNode;
+    scene::basic_node *asSceneNode;
     glm::dvec3 const *asLocation;
     TTrack *asTrack;
     TAnimModel *asModel;
@@ -103,6 +101,9 @@ public:
     TEvent(std::string const &m = "");
     ~TEvent();
     void Load(cParser *parser, Math3D::vector3 const &org);
+    // sends basic content of the class in legacy (text) format to provided stream
+    void
+        export_as_text( std::ostream &Output ) const;
     static void AddToQuery( TEvent *Event, TEvent *&Start );
     std::string CommandGet();
     TCommandType Command();
@@ -151,6 +152,9 @@ public:
     // legacy method, initializes event launchers after deserialization from scenario file
     void
         InitLaunchers();
+    // sends basic content of the class in legacy (text) format to provided stream
+    void
+        export_as_text( std::ostream &Output ) const;
 
 private:
 // types

MemCell.cpp

@@ -164,6 +164,41 @@ void TMemCell::AssignEvents(TEvent *e)
     OnSent = e;
 };
 
+// serialize() subclass details, sends content of the subclass to provided stream
+void
+TMemCell::serialize_( std::ostream &Output ) const {
+
+    // TODO: implement
+}
+// deserialize() subclass details, restores content of the subclass from provided stream
+void
+TMemCell::deserialize_( std::istream &Input ) {
+
+    // TODO: implement
+}
+
+// export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+void
+TMemCell::export_as_text_( std::ostream &Output ) const {
+    // header
+    Output << "memcell ";
+    // location
+    Output
+        << location().x << ' '
+        << location().y << ' '
+        << location().z << ' '
+    // cell data
+        << szText << ' '
+        << fValue1 << ' '
+        << fValue2 << ' '
+    // associated track
+        << ( asTrackName.empty() ? "none" : asTrackName ) << ' '
+    // footer
+        << "endmemcell"
+        << "\n";
+}
+
+
 
 
 // legacy method, initializes traction after deserialization from scenario file

MemCell.h

@@ -13,10 +13,11 @@ http://mozilla.org/MPL/2.0/.
 #include "scenenode.h"
 #include "names.h"
 
-class TMemCell : public editor::basic_node {
+class TMemCell : public scene::basic_node {
 
 public:
     std::string asTrackName; // McZapkie-100302 - zeby nazwe toru na ktory jest Putcommand wysylane pamietac
+    bool is_exportable { true }; // export helper; autogenerated cells don't need to be exported
 
     explicit TMemCell( scene::node_data const &Nodedata );
 
@@ -49,6 +50,15 @@ public:
     void AssignEvents(TEvent *e);
 
 private:
+// methods
+    // serialize() subclass details, sends content of the subclass to provided stream
+    void serialize_( std::ostream &Output ) const;
+    // deserialize() subclass details, restores content of the subclass from provided stream
+    void deserialize_( std::istream &Input );
+    // export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+    void export_as_text_( std::ostream &Output ) const;
+
+// members
     // content
     std::string szText;
     double fValue1 { 0.0 };

Names.h

@@ -60,5 +60,8 @@ public:
     type_sequence &
         sequence() {
             return m_items; }
+    type_sequence const &
+        sequence() const {
+            return m_items; }
 
 };

Segment.cpp

@@ -18,8 +18,36 @@ http://mozilla.org/MPL/2.0/.
 
 //---------------------------------------------------------------------------
 
-// 101206 Ra: trapezoidalne drogi
+// helper, restores content of a 3d vector from provided input stream
-// 110806 Ra: odwrócone mapowanie wzdłuż - Point1 == 1.0
+// TODO: review and clean up the helper routines, there's likely some redundant ones
+Math3D::vector3 LoadPoint( cParser &Input ) {
+    // pobranie współrzędnych punktu
+    Input.getTokens( 3 );
+    Math3D::vector3 point;
+    Input
+        >> point.x
+        >> point.y
+        >> point.z;
+
+    return point;
+}
+
+
+void
+segment_data::deserialize( cParser &Input, Math3D::vector3 const &Offset ) {
+
+    points[ segment_data::point::start ] = LoadPoint( Input ) + Offset;
+    Input.getTokens();
+    Input >> rolls[ 0 ];
+    points[ segment_data::point::control1 ] = LoadPoint( Input );
+    points[ segment_data::point::control2 ] = LoadPoint( Input );
+    points[ segment_data::point::end ] = LoadPoint( Input ) + Offset;
+    Input.getTokens( 2 );
+    Input
+        >> rolls[ 1 ]
+        >> radius;
+}
+
 
 TSegment::TSegment(TTrack *owner) :
                    pOwner( owner )
@@ -62,6 +90,7 @@ bool TSegment::Init( Math3D::vector3 &NewPoint1, Math3D::vector3 NewCPointOut, M
     // poprawienie przechyłki
     fRoll1 = glm::radians(fNewRoll1); // Ra: przeliczone jest bardziej przydatne do obliczeń
     fRoll2 = glm::radians(fNewRoll2);
+    bCurve = bIsCurve;
     if (Global.bRollFix)
     { // Ra: poprawianie przechyłki
         // Przechyłka powinna być na środku wewnętrznej szyny, a standardowo jest w osi
@@ -91,7 +120,6 @@ bool TSegment::Init( Math3D::vector3 &NewPoint1, Math3D::vector3 NewCPointOut, M
     // kąt w planie, żeby nie liczyć wielokrotnie
     // Ra: ten kąt jeszcze do przemyślenia jest
     fDirection = -std::atan2(Point2.x - Point1.x, Point2.z - Point1.z);
-    bCurve = bIsCurve;
     if (bCurve)
     { // przeliczenie współczynników wielomianu, będzie mniej mnożeń i można policzyć pochodne
         vC = 3.0 * (CPointOut - Point1); // t^1
@@ -99,9 +127,9 @@ bool TSegment::Init( Math3D::vector3 &NewPoint1, Math3D::vector3 NewCPointOut, M
         vA = Point2 - Point1 - vC - vB; // t^3
         fLength = ComputeLength();
     }
-    else
+    else {
-        fLength = (Point1 - Point2).Length();
+        fLength = ( Point1 - Point2 ).Length();
-    fStep = fNewStep;
+    }
     if (fLength <= 0) {
 
         ErrorLog( "Bad track: zero length spline \"" + pOwner->name() + "\" (location: " + to_string( glm::dvec3{ Point1 } ) + ")" );
@@ -111,17 +139,25 @@ bool TSegment::Init( Math3D::vector3 &NewPoint1, Math3D::vector3 NewCPointOut, M
 */
     }
 
-    if( ( pOwner->eType == tt_Switch )
-     && ( fStep * 3.0 > fLength ) ) {
-        // NOTE: a workaround for too short switches (less than 3 segments) messing up animation/generation of blades
-        fStep = fLength / 3.0;
-    }
-
     fStoop = std::atan2((Point2.y - Point1.y), fLength); // pochylenie toru prostego, żeby nie liczyć wielokrotnie
-    SafeDeleteArray(fTsBuffer);
 
+    fStep = fNewStep;
+    // NOTE: optionally replace this part with the commented version, after solving geometry issues with double switches
+    if( ( pOwner->eType == tt_Switch )
+     && ( fStep * ( 3.0 * Global.SplineFidelity ) > fLength ) ) {
+        // NOTE: a workaround for too short switches (less than 3 segments) messing up animation/generation of blades
+        fStep = fLength / ( 3.0 * Global.SplineFidelity );
+    }
     iSegCount = static_cast<int>( std::ceil( fLength / fStep ) ); // potrzebne do VBO
+/*
+    iSegCount = (
+        pOwner->eType == tt_Switch ?
+            6 * Global.SplineFidelity :
+            static_cast<int>( std::ceil( fLength / fStep ) ) ); // potrzebne do VBO
+*/
     fStep = fLength / iSegCount; // update step to equalize size of individual pieces
+
+    SafeDeleteArray( fTsBuffer );
     fTsBuffer = new double[ iSegCount + 1 ];
     fTsBuffer[ 0 ] = 0.0;
     for( int i = 1; i < iSegCount; ++i ) {

Segment.h

@@ -14,6 +14,24 @@ http://mozilla.org/MPL/2.0/.
 #include "openglgeometrybank.h"
 #include "utilities.h"
 
+struct segment_data {
+// types
+    enum point {
+        start = 0,
+        control1,
+        control2,
+        end
+    };
+// members
+    std::array<glm::dvec3, 4> points {};
+    std::array<float, 2> rolls {};
+    float radius {};
+// constructors
+    segment_data() = default;
+// methods
+    void deserialize( cParser &Input, Math3D::vector3 const &Offset );
+};
+
 class TSegment
 { // aproksymacja toru (zwrotnica ma dwa takie, jeden z nich jest aktywny)
   private:

Track.cpp

@@ -343,14 +343,6 @@ void TTrack::ConnectNextNext(TTrack *pTrack, int typ)
     }
 }
 
-Math3D::vector3 LoadPoint(cParser *parser)
-{ // pobranie współrzędnych punktu
-    Math3D::vector3 p;
-    parser->getTokens(3);
-    *parser >> p.x >> p.y >> p.z;
-    return p;
-}
-
 void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
 { // pobranie obiektu trajektorii ruchu
     Math3D::vector3 pt, vec, p1, p2, cp1, cp2, p3, p4, cp3, cp4; // dodatkowe punkty potrzebne do skrzyżowań
@@ -473,20 +465,44 @@ void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
         WriteLog("unvis");
     Init(); // ustawia SwitchExtension
     double segsize = 5.0; // długość odcinka segmentowania
-    switch (eType)
+
-    { // Ra: łuki segmentowane co 5m albo 314-kątem foremnym
+    // path data
-    case tt_Table: // obrotnica jest prawie jak zwykły tor
+    // all subtypes contain at least one path
+    m_paths.emplace_back();
+    m_paths.back().deserialize( *parser, pOrigin );
+    switch( eType ) {
+        case tt_Switch:
+        case tt_Cross:
+        case tt_Tributary: {
+            // these subtypes contain additional path
+            m_paths.emplace_back();
+            m_paths.back().deserialize( *parser, pOrigin );
+            break;
+        }
+        default: {
+            break;
+        }
+    }
+
+    switch (eType) {
+        // Ra: łuki segmentowane co 5m albo 314-kątem foremnym
+    case tt_Table: {
+        // obrotnica jest prawie jak zwykły tor
         iAction |= 2; // flaga zmiany położenia typu obrotnica
-    case tt_Normal:
+    }
-        p1 = LoadPoint(parser) + pOrigin; // pobranie współrzędnych P1
+    case tt_Normal: {
-        parser->getTokens();
+        // pobranie współrzędnych P1
-        *parser >> r1; // pobranie przechyłki w P1
+        auto const &path { m_paths[ 0 ] };
-        cp1 = LoadPoint(parser); // pobranie współrzędnych punktów kontrolnych
+        p1 = path.points[ segment_data::point::start ];
-        cp2 = LoadPoint(parser);
+        // pobranie współrzędnych punktów kontrolnych
-        p2 = LoadPoint(parser) + pOrigin; // pobranie współrzędnych P2
+        cp1 = path.points[ segment_data::point::control1 ];
-        parser->getTokens(2);
+        cp2 = path.points[ segment_data::point::control2 ];
-        *parser >> r2 >> fRadius; // pobranie przechyłki w P1 i promienia
+        // pobranie współrzędnych P2
-        fRadius = fabs(fRadius); // we wpisie może być ujemny
+        p2 = path.points[ segment_data::point::end ];
+        r1 = path.rolls[ 0 ];
+        r2 = path.rolls[ 1 ];
+        fRadius = std::abs( path.radius ); // we wpisie może być ujemny
+
         if (iCategoryFlag & 1)
         { // zero na główce szyny
             p1.y += 0.18;
@@ -502,7 +518,11 @@ void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
 
         if( fRadius != 0 ) {
             // gdy podany promień
-            segsize = clamp( std::abs( fRadius ) * ( 0.02 / Global.SplineFidelity ), 2.0 / Global.SplineFidelity, 10.0 );
+            segsize =
+                clamp(
+                    std::abs( fRadius ) * ( 0.02 / Global.SplineFidelity ),
+                    2.0 / Global.SplineFidelity,
+                    10.0 / Global.SplineFidelity );
         }
         else {
             // HACK: crude check whether claimed straight is an actual straight piece
@@ -512,7 +532,11 @@ void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
             }
             else {
                 // HACK: divide roughly in 10 segments. 
-                segsize = clamp( ( p1 - p2 ).Length() * ( 0.1 / Global.SplineFidelity ), 2.0 / Global.SplineFidelity, 10.0 );
+                segsize =
+                    clamp(
+                        ( p1 - p2 ).Length() * 0.1,
+                        2.0 / Global.SplineFidelity,
+                        10.0 / Global.SplineFidelity );
             }
         }
 
@@ -529,6 +553,7 @@ void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
 
         if ((r1 != 0) || (r2 != 0))
             iTrapezoid = 1; // są przechyłki do uwzględniania w rysowaniu
+
         if (eType == tt_Table) // obrotnica ma doklejkę
         { // SwitchExtension=new TSwitchExtension(this,1); //dodatkowe zmienne dla obrotnicy
             SwitchExtension->Segments[0]->Init(p1, p2, segsize); // kopia oryginalnego toru
@@ -549,56 +574,92 @@ void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
                     fTexRatio2 = w / h; // proporcja boków
             }
         break;
-
+    }
-    case tt_Cross: // skrzyżowanie dróg - 4 punkty z wektorami kontrolnymi
+    case tt_Cross: {
-        segsize = 1.0; // specjalne segmentowanie ze względu na małe promienie
+        // skrzyżowanie dróg - 4 punkty z wektorami kontrolnymi
+//        segsize = 1.0; // specjalne segmentowanie ze względu na małe promienie
+    }
     case tt_Tributary: // dopływ
-    case tt_Switch: // zwrotnica
+    case tt_Switch: { // zwrotnica
         iAction |= 1; // flaga zmiany położenia typu zwrotnica lub skrzyżowanie dróg
         // problemy z animacją iglic powstaje, gdzy odcinek prosty ma zmienną przechyłkę
         // wtedy dzieli się na dodatkowe odcinki (po 0.2m, bo R=0) i animację diabli biorą
         // Ra: na razie nie podejmuję się przerabiania iglic
 
         // SwitchExtension=new TSwitchExtension(this,eType==tt_Cross?6:2); //zwrotnica ma doklejkę
+        auto const &path { m_paths[ 0 ] };
+        p1 = path.points[ segment_data::point::start ];
+        // pobranie współrzędnych punktów kontrolnych
+        cp1 = path.points[ segment_data::point::control1 ];
+        cp2 = path.points[ segment_data::point::control2 ];
+        // pobranie współrzędnych P2
+        p2 = path.points[ segment_data::point::end ];
+        r1 = path.rolls[ 0 ];
+        r2 = path.rolls[ 1 ];
+        fRadiusTable[0] = std::abs( path.radius ); // we wpisie może być ujemny
 
-        p1 = LoadPoint(parser) + pOrigin; // pobranie współrzędnych P1
-        parser->getTokens();
-        *parser >> r1;
-        cp1 = LoadPoint(parser);
-        cp2 = LoadPoint(parser);
-        p2 = LoadPoint(parser) + pOrigin; // pobranie współrzędnych P2
-        parser->getTokens(2);
-        *parser >> r2 >> fRadiusTable[0];
-        fRadiusTable[0] = fabs(fRadiusTable[0]); // we wpisie może być ujemny
         if (iCategoryFlag & 1)
         { // zero na główce szyny
             p1.y += 0.18;
             p2.y += 0.18;
             // na przechyłce doliczyć jeszcze pół przechyłki?
         }
-        if (fRadiusTable[0] > 0)
-            segsize = clamp( 0.2 + fRadiusTable[0] * 0.02, 2.0, 5.0 );
-        else if (eType != tt_Cross) // dla skrzyżowań muszą być podane kontrolne
-        { // jak promień zerowy, to przeliczamy punkty kontrolne
-            cp1 = (p1 + p1 + p2) / 3.0 - p1; // jak jest prosty, to się zoptymalizuje
-            cp2 = (p1 + p2 + p2) / 3.0 - p2;
-            segsize = 5.0;
-        } // ułomny prosty
 
-        if (!(cp1 == Math3D::vector3(0, 0, 0)) && !(cp2 == Math3D::vector3(0, 0, 0)))
+        if( eType != tt_Cross ) {
-            SwitchExtension->Segments[0]->Init(p1, p1 + cp1, p2 + cp2, p2, segsize, r1, r2);
+            // dla skrzyżowań muszą być podane kontrolne
-        else
+            if( ( ( ( p1 + p1 + p2 ) / 3.0 - p1 - cp1 ).Length() < 0.02 )
-            SwitchExtension->Segments[0]->Init(p1, p2, segsize, r1, r2);
+             || ( ( ( p1 + p2 + p2 ) / 3.0 - p2 + cp1 ).Length() < 0.02 ) ) {
+                // "prostowanie" prostych z kontrolnymi, dokładność 2cm
+                cp1 = cp2 = Math3D::vector3( 0, 0, 0 );
+            }
+        }
+
+        if( fRadiusTable[ 0 ] != 0 ) {
+            // gdy podany promień
+            segsize =
+                clamp(
+                    std::abs( fRadiusTable[ 0 ] ) * ( 0.02 / Global.SplineFidelity ),
+                    2.0 / Global.SplineFidelity,
+                    10.0 / Global.SplineFidelity );
+        }
+        else {
+            // HACK: crude check whether claimed straight is an actual straight piece
+            if( ( cp1 == Math3D::vector3() )
+             && ( cp2 == Math3D::vector3() ) ) {
+                segsize = 10.0; // for straights, 10m per segment works good enough
+            }
+            else {
+                // HACK: divide roughly in 10 segments. 
+                segsize =
+                    clamp(
+                        ( p1 - p2 ).Length() * 0.1,
+                        2.0 / Global.SplineFidelity,
+                        10.0 / Global.SplineFidelity );
+            }
+        }
+
+        if( ( cp1 == Math3D::vector3( 0, 0, 0 ) )
+         && ( cp2 == Math3D::vector3( 0, 0, 0 ) ) ) {
+            // Ra: hm, czasem dla prostego są podane...
+            // gdy prosty, kontrolne wyliczane przy zmiennej przechyłce
+            SwitchExtension->Segments[ 0 ]->Init( p1, p2, segsize, r1, r2 );
+        }
+        else {
+            // gdy łuk (ustawia bCurve=true)
+            SwitchExtension->Segments[ 0 ]->Init( p1, cp1 + p1, cp2 + p2, p2, segsize, r1, r2 );
+        }
+
+        auto const &path2 { m_paths[ 1 ] };
+        p3 = path2.points[ segment_data::point::start ];
+        // pobranie współrzędnych punktów kontrolnych
+        cp3 = path2.points[ segment_data::point::control1 ];
+        cp4 = path2.points[ segment_data::point::control2 ];
+        // pobranie współrzędnych P2
+        p4 = path2.points[ segment_data::point::end ];
+        r3 = path2.rolls[ 0 ];
+        r4 = path2.rolls[ 1 ];
+        fRadiusTable[1] = std::abs( path2.radius ); // we wpisie może być ujemny
 
-        p3 = LoadPoint(parser) + pOrigin; // pobranie współrzędnych P3
-        parser->getTokens();
-        *parser >> r3;
-        cp3 = LoadPoint(parser);
-        cp4 = LoadPoint(parser);
-        p4 = LoadPoint(parser) + pOrigin; // pobranie współrzędnych P4
-        parser->getTokens(2);
-        *parser >> r4 >> fRadiusTable[1];
-        fRadiusTable[1] = fabs(fRadiusTable[1]); // we wpisie może być ujemny
         if (iCategoryFlag & 1)
         { // zero na główce szyny
             p3.y += 0.18;
@@ -606,25 +667,54 @@ void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
             // na przechyłce doliczyć jeszcze pół przechyłki?
         }
 
-        if (fRadiusTable[1] > 0)
+        if( eType != tt_Cross ) {
-            segsize = clamp( 0.2 + fRadiusTable[ 1 ] * 0.02, 2.0, 5.0 );
+            // dla skrzyżowań muszą być podane kontrolne
-
+            if( ( ( ( p3 + p3 + p4 ) / 3.0 - p3 - cp3 ).Length() < 0.02 )
-        else if (eType != tt_Cross) // dla skrzyżowań muszą być podane kontrolne
+             || ( ( ( p3 + p4 + p4 ) / 3.0 - p4 + cp3 ).Length() < 0.02 ) ) {
-        { // jak promień zerowy, to przeliczamy punkty kontrolne
+                // "prostowanie" prostych z kontrolnymi, dokładność 2cm
-            cp3 = (p3 + p3 + p4) / 3.0 - p3; // jak jest prosty, to się zoptymalizuje
+                cp3 = cp4 = Math3D::vector3( 0, 0, 0 );
-            cp4 = (p3 + p4 + p4) / 3.0 - p4;
+            }
-            segsize = 5.0;
+        }
-        } // ułomny prosty
+
-
+        if( fRadiusTable[ 1 ] != 0 ) {
-        if (!(cp3 == Math3D::vector3(0, 0, 0)) && !(cp4 == Math3D::vector3(0, 0, 0)))
+            // gdy podany promień
-        { // dla skrzyżowania dróg dać odwrotnie końce, żeby brzegi generować lewym
+            segsize =
-            if (eType != tt_Cross)
+                clamp(
-                SwitchExtension->Segments[1]->Init(p3, p3 + cp3, p4 + cp4, p4, segsize, r3, r4);
+                    std::abs( fRadiusTable[ 1 ] ) * ( 0.02 / Global.SplineFidelity ),
-            else
+                    2.0 / Global.SplineFidelity,
-                SwitchExtension->Segments[1]->Init(p4, p4 + cp4, p3 + cp3, p3, segsize, r4, r3); // odwrócony
+                    10.0 / Global.SplineFidelity );
+        }
+        else {
+            // HACK: crude check whether claimed straight is an actual straight piece
+            if( ( cp3 == Math3D::vector3() )
+             && ( cp4 == Math3D::vector3() ) ) {
+                segsize = 10.0; // for straights, 10m per segment works good enough
+            }
+            else {
+                // HACK: divide roughly in 10 segments. 
+                segsize =
+                    clamp(
+                        ( p3 - p4 ).Length() * 0.1,
+                        2.0 / Global.SplineFidelity,
+                        10.0 / Global.SplineFidelity );
+            }
+        }
+
+        if( ( cp3 == Math3D::vector3( 0, 0, 0 ) )
+         && ( cp4 == Math3D::vector3( 0, 0, 0 ) ) ) {
+            // Ra: hm, czasem dla prostego są podane...
+            // gdy prosty, kontrolne wyliczane przy zmiennej przechyłce
+            SwitchExtension->Segments[ 1 ]->Init( p3, p4, segsize, r3, r4 );
+        }
+        else {
+            if( eType != tt_Cross ) {
+                SwitchExtension->Segments[ 1 ]->Init( p3, p3 + cp3, p4 + cp4, p4, segsize, r3, r4 );
+            }
+            else {
+                // dla skrzyżowania dróg dać odwrotnie końce, żeby brzegi generować lewym
+                SwitchExtension->Segments[ 1 ]->Init( p4, p4 + cp4, p3 + cp3, p3, segsize, r4, r3 ); // odwrócony
+            }
         }
-        else
-            SwitchExtension->Segments[1]->Init(p3, p4, segsize, r3, r4);
 
         if (eType == tt_Cross)
         { // Ra 2014-07: dla skrzyżowań będą dodatkowe segmenty
@@ -646,10 +736,10 @@ void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
         {
             Math3D::vector3 v1, v2;
             double a1, a2;
-            v1 = SwitchExtension->Segments[0]->FastGetPoint_1() -
+            v1 =  SwitchExtension->Segments[0]->FastGetPoint_1()
-                 SwitchExtension->Segments[0]->FastGetPoint_0();
+                - SwitchExtension->Segments[0]->FastGetPoint_0();
-            v2 = SwitchExtension->Segments[1]->FastGetPoint_1() -
+            v2 =  SwitchExtension->Segments[1]->FastGetPoint_1()
-                 SwitchExtension->Segments[1]->FastGetPoint_0();
+                - SwitchExtension->Segments[1]->FastGetPoint_0();
             a1 = atan2(v1.x, v1.z);
             a2 = atan2(v2.x, v2.z);
             a2 = a2 - a1;
@@ -661,6 +751,9 @@ void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
         }
         break;
         }
+    }
+
+    // optional attributes
     parser->getTokens();
     *parser >> token;
     str = token;
@@ -707,9 +800,9 @@ void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
             parser->getTokens();
             *parser >> fVelocity; //*0.28; McZapkie-010602
             if (SwitchExtension) // jeśli tor ruchomy
-                if (std::fabs(fVelocity) >= 1.0) //żeby zero nie ograniczało dożywotnio
+                if (std::abs(fVelocity) >= 1.0) //żeby zero nie ograniczało dożywotnio
-                    SwitchExtension->fVelocity = static_cast<float>(fVelocity); // zapamiętanie głównego ograniczenia; a
+                    // zapamiętanie głównego ograniczenia; a np. -40 ogranicza tylko na bok
-            // np. -40 ogranicza tylko na bok
+                    SwitchExtension->fVelocity = static_cast<float>(fVelocity);
         }
         else if (str == "isolated")
         { // obwód izolowany, do którego tor należy
@@ -777,20 +870,25 @@ void TTrack::Load(cParser *parser, Math3D::vector3 pOrigin)
 }
 
 // TODO: refactor this mess
-bool TTrack::AssignEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent2)
+bool TTrack::AssignEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent2, bool const Explicit )
 {
     bool bError = false;
 
     if( NewEvent0 == nullptr ) {
         if( false == asEvent0Name.empty() ) {
-            ErrorLog( "Bad event: event \"" + asEvent0Name + "\" assigned to track \"" + m_name + "\" does not exist" );
             bError = true;
+            if( true == Explicit ) {
+                ErrorLog( "Bad event: event \"" + asEvent0Name + "\" assigned to track \"" + m_name + "\" does not exist" );
+            }
         }
     }
     else {
         if( evEvent0 == nullptr ) {
             evEvent0 = NewEvent0;
+/*
+            // preserve event names, we'll need them if we want the scenario export to be unaffected by missing events and such
             asEvent0Name = "";
+*/
             iEvents |= 1; // sumaryczna informacja o eventach
         }
         else {
@@ -801,14 +899,18 @@ bool TTrack::AssignEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent
 
     if( NewEvent1 == nullptr ) {
         if( false == asEvent1Name.empty() ) {
-            ErrorLog( "Bad event: event \"" + asEvent1Name + "\" assigned to track \"" + m_name + "\" does not exist" );
             bError = true;
+            if( true == Explicit ) {
+                ErrorLog( "Bad event: event \"" + asEvent1Name + "\" assigned to track \"" + m_name + "\" does not exist" );
+            }
         }
     }
     else {
         if( evEvent1 == nullptr ) {
             evEvent1 = NewEvent1;
+/*
             asEvent1Name = "";
+*/
             iEvents |= 2; // sumaryczna informacja o eventach
         }
         else {
@@ -819,14 +921,18 @@ bool TTrack::AssignEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent
 
     if( NewEvent2 == nullptr ) {
         if( false == asEvent2Name.empty() ) {
-            ErrorLog( "Bad event: event \"" + asEvent2Name + "\" assigned to track \"" + m_name + "\" does not exist" );
             bError = true;
+            if( true == Explicit ) {
+                ErrorLog( "Bad event: event \"" + asEvent2Name + "\" assigned to track \"" + m_name + "\" does not exist" );
+            }
         }
     }
     else {
         if( evEvent2 == nullptr ) {
             evEvent2 = NewEvent2;
+/*
             asEvent2Name = "";
+*/
             iEvents |= 4; // sumaryczna informacja o eventach
         }
         else {
@@ -838,20 +944,25 @@ bool TTrack::AssignEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent
     return ( bError == false );
 }
 
-bool TTrack::AssignallEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent2)
+bool TTrack::AssignallEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent2, bool const Explicit)
 {
     bool bError = false;
 
     if( NewEvent0 == nullptr ) {
         if( false == asEventall0Name.empty() ) {
-            ErrorLog( "Bad event: event \"" + asEventall0Name + "\" assigned to track \"" + m_name + "\" does not exist" );
             bError = true;
+            if( true == Explicit ) {
+                ErrorLog( "Bad event: event \"" + asEventall0Name + "\" assigned to track \"" + m_name + "\" does not exist" );
+            }
         }
     }
     else {
         if( evEventall0 == nullptr ) {
             evEventall0 = NewEvent0;
+/*
+            // preserve event names, we'll need them if we want the scenario export to be unaffected by missing events and such
             asEventall0Name = "";
+*/
             iEvents |= 8; // sumaryczna informacja o eventach
         }
         else {
@@ -862,14 +973,18 @@ bool TTrack::AssignallEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEv
 
     if( NewEvent1 == nullptr ) {
         if( false == asEventall1Name.empty() ) {
-            ErrorLog( "Bad event: event \"" + asEventall1Name + "\" assigned to track \"" + m_name + "\" does not exist" );
             bError = true;
+            if( true == Explicit ) {
+                ErrorLog( "Bad event: event \"" + asEventall1Name + "\" assigned to track \"" + m_name + "\" does not exist" );
+            }
         }
     }
     else {
         if( evEventall1 == nullptr ) {
             evEventall1 = NewEvent1;
+/*
             asEventall1Name = "";
+*/
             iEvents |= 16; // sumaryczna informacja o eventach
         }
         else {
@@ -880,14 +995,18 @@ bool TTrack::AssignallEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEv
 
     if( NewEvent2 == nullptr ) {
         if( false == asEventall2Name.empty() ) {
-            ErrorLog( "Bad event: event \"" + asEventall2Name + "\" assigned to track \"" + m_name + "\" does not exist" );
             bError = true;
+            if( true == Explicit ) {
+                ErrorLog( "Bad event: event \"" + asEventall2Name + "\" assigned to track \"" + m_name + "\" does not exist" );
+            }
         }
     }
     else {
         if( evEventall2 == nullptr ) {
             evEventall2 = NewEvent2;
+/*
             asEventall2Name = "";
+*/
             iEvents |= 32; // sumaryczna informacja o eventach
         }
         else {
@@ -1404,6 +1523,7 @@ void TTrack::create_geometry( gfx::geometrybank_handle const &Bank ) {
                          {szyna[ i ].texture.x, 0.f} };
                 }
                 // TODO, TBD: change all track geometry to triangles, to allow packing data in less, larger buffers
+                auto const bladelength { 2 * Global.SplineFidelity };
                 if (SwitchExtension->RightSwitch)
                 { // nowa wersja z SPKS, ale odwrotnie lewa/prawa
                     gfx::vertex_array vertices;
@@ -1412,11 +1532,11 @@ void TTrack::create_geometry( gfx::geometrybank_handle const &Bank ) {
                         SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts2, nnumPts, fTexLength );
                         Geometry1.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
-                        SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts1, nnumPts, fTexLength, 1.0, 2 );
+                        SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts1, nnumPts, fTexLength, 1.0, bladelength );
                         Geometry1.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
                         // left blade
-                        SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts3, -nnumPts, fTexLength, 1.0, 0, 2, SwitchExtension->fOffset2 );
+                        SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts3, -nnumPts, fTexLength, 1.0, 0, bladelength, SwitchExtension->fOffset2 );
                         Geometry1.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
                     }
@@ -1425,11 +1545,11 @@ void TTrack::create_geometry( gfx::geometrybank_handle const &Bank ) {
                         SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts1, nnumPts, fTexLength );
                         Geometry2.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
-                        SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts2, nnumPts, fTexLength, 1.0, 2 );
+                        SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts2, nnumPts, fTexLength, 1.0, bladelength );
                         Geometry2.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
                         // right blade
-                        SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts4, -nnumPts, fTexLength, 1.0, 0, 2, -fMaxOffset + SwitchExtension->fOffset1 );
+                        SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts4, -nnumPts, fTexLength, 1.0, 0, bladelength, -fMaxOffset + SwitchExtension->fOffset1 );
                         Geometry2.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
                     }
@@ -1442,11 +1562,11 @@ void TTrack::create_geometry( gfx::geometrybank_handle const &Bank ) {
                         SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts1, nnumPts, fTexLength ); // lewa szyna normalna cała
                         Geometry1.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
-                        SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts2, nnumPts, fTexLength, 1.0, 2 ); // prawa szyna za iglicą
+                        SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts2, nnumPts, fTexLength, 1.0, bladelength ); // prawa szyna za iglicą
                         Geometry1.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
                         // right blade
-                        SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts4, -nnumPts, fTexLength, 1.0, 0, 2, -SwitchExtension->fOffset2 );
+                        SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts4, -nnumPts, fTexLength, 1.0, 0, bladelength, -SwitchExtension->fOffset2 );
                         Geometry1.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
                     }
@@ -1455,11 +1575,11 @@ void TTrack::create_geometry( gfx::geometrybank_handle const &Bank ) {
                         SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts2, nnumPts, fTexLength ); // prawa szyna normalnie cała
                         Geometry2.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
-                        SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts1, nnumPts, fTexLength, 1.0, 2 ); // lewa szyna za iglicą
+                        SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts1, nnumPts, fTexLength, 1.0, bladelength ); // lewa szyna za iglicą
                         Geometry2.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
                         // left blade
-                        SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts3, -nnumPts, fTexLength, 1.0, 0, 2, fMaxOffset - SwitchExtension->fOffset1 );
+                        SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts3, -nnumPts, fTexLength, 1.0, 0, bladelength, fMaxOffset - SwitchExtension->fOffset1 );
                         Geometry2.emplace_back( GfxRenderer.Insert( vertices, Bank, GL_TRIANGLE_STRIP ) );
                         vertices.clear();
                     }
@@ -2220,9 +2340,13 @@ bool TTrack::Switch(int i, float const t, float const d)
             iNextDirection = SwitchExtension->iNextDirection[i];
             iPrevDirection = SwitchExtension->iPrevDirection[i];
             fRadius = fRadiusTable[i]; // McZapkie: wybor promienia toru
-            if (SwitchExtension->fVelocity <=
+            if( SwitchExtension->fVelocity <= -2 ) {
-                -2) //-1 oznacza maksymalną prędkość, a dalsze ujemne to ograniczenie na bok
+                //-1 oznacza maksymalną prędkość, a dalsze ujemne to ograniczenie na bok
                 fVelocity = i ? -SwitchExtension->fVelocity : -1;
+            }
+            else {
+                fVelocity = SwitchExtension->fVelocity;
+            }
             if (SwitchExtension->pOwner ? SwitchExtension->pOwner->RaTrackAnimAdd(this) :
                                           true) // jeśli nie dodane do animacji
             { // nie ma się co bawić
@@ -2455,17 +2579,18 @@ TTrack * TTrack::RaAnimate()
 
             gfx::vertex_array vertices;
 
+            auto const bladelength { 2 * Global.SplineFidelity };
             if (SwitchExtension->RightSwitch)
             { // nowa wersja z SPKS, ale odwrotnie lewa/prawa
                 if( m_material1 ) {
                     // left blade
-                    SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts3, -nnumPts, fTexLength, 1.0, 0, 2, SwitchExtension->fOffset2 );
+                    SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts3, -nnumPts, fTexLength, 1.0, 0, bladelength, SwitchExtension->fOffset2 );
                     GfxRenderer.Replace( vertices, Geometry1[ 2 ] );
                     vertices.clear();
                 }
                 if( m_material2 ) {
                     // right blade
-                    SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts4, -nnumPts, fTexLength, 1.0, 0, 2, -fMaxOffset + SwitchExtension->fOffset1 );
+                    SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts4, -nnumPts, fTexLength, 1.0, 0, bladelength, -fMaxOffset + SwitchExtension->fOffset1 );
                     GfxRenderer.Replace( vertices, Geometry2[ 2 ] );
                     vertices.clear();
                 }
@@ -2473,13 +2598,13 @@ TTrack * TTrack::RaAnimate()
             else { // lewa działa lepiej niż prawa
                 if( m_material1 ) {
                     // right blade
-                    SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts4, -nnumPts, fTexLength, 1.0, 0, 2, -SwitchExtension->fOffset2 );
+                    SwitchExtension->Segments[ 0 ]->RenderLoft( vertices, m_origin, rpts4, -nnumPts, fTexLength, 1.0, 0, bladelength, -SwitchExtension->fOffset2 );
                     GfxRenderer.Replace( vertices, Geometry1[ 2 ] );
                     vertices.clear();
                 }
                 if( m_material2 ) {
                     // left blade
-                    SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts3, -nnumPts, fTexLength, 1.0, 0, 2, fMaxOffset - SwitchExtension->fOffset1 );
+                    SwitchExtension->Segments[ 1 ]->RenderLoft( vertices, m_origin, rpts3, -nnumPts, fTexLength, 1.0, 0, bladelength, fMaxOffset - SwitchExtension->fOffset1 );
                     GfxRenderer.Replace( vertices, Geometry2[ 2 ] );
                     vertices.clear();
                 }
@@ -2659,32 +2784,188 @@ TTrack::endpoints() const {
     }
 }
 
-// calculates path's bounding radius
+// radius() subclass details, calculates node's bounding radius
-void
+float
 TTrack::radius_() {
 
-    auto const points = endpoints();
+    auto const points { endpoints() };
+    auto radius { 0.f };
     for( auto &point : points ) {
-        m_area.radius = std::max(
+        radius = std::max(
-            m_area.radius,
+            radius,
             static_cast<float>( glm::length( m_area.center - point ) ) ); // extra margin to prevent driven vehicle from flicking
     }
+    return radius;
+}
+
+// serialize() subclass details, sends content of the subclass to provided stream
+void
+TTrack::serialize_( std::ostream &Output ) const {
+
+    // TODO: implement
+}
+// deserialize() subclass details, restores content of the subclass from provided stream
+void
+TTrack::deserialize_( std::istream &Input ) {
+
+    // TODO: implement
+}
+
+// export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+void
+TTrack::export_as_text_( std::ostream &Output ) const {
+    // header
+    Output << "track ";
+    // type
+    Output << (
+            eType == tt_Normal ? (
+                iCategoryFlag == 1 ? "normal" :
+                iCategoryFlag == 2 ? "road" :
+                iCategoryFlag == 4 ? "river" :
+                "none" ) :
+            eType == tt_Switch ? "switch" :
+            eType == tt_Cross ? "cross" :
+            eType == tt_Table ? "turn" :
+            eType == tt_Tributary ? "tributary" :
+            "none" )
+            << ' ';
+    // basic attributes
+    Output
+        << Length() << ' '
+        << fTrackWidth << ' '
+        << fFriction << ' '
+        << fSoundDistance << ' '
+        << iQualityFlag << ' '
+        << iDamageFlag << ' ';
+    // environment
+    Output << (
+            eEnvironment == e_flat ? "flat" :
+            eEnvironment == e_bridge ? "bridge" :
+            eEnvironment == e_tunnel ? "tunnel" :
+            eEnvironment == e_bank ? "bank" :
+            eEnvironment == e_canyon ? "canyon" :
+            eEnvironment == e_mountains ? "mountains" :
+            "none" )
+            << ' ';
+    // visibility
+    // NOTE: 'invis' would be less wrong than 'unvis', but potentially incompatible with old 3rd party tools
+    Output << ( m_visible ? "vis" : "unvis" ) << ' ';
+    if( m_visible ) {
+        // texture parameters are supplied only if the path is set as visible
+        auto texturefile { (
+            m_material1 != null_handle ?
+            GfxRenderer.Material( m_material1 ).name :
+            "none" ) };
+        if( texturefile.find( szTexturePath ) == 0 ) {
+            // don't include 'textures/' in the path
+            texturefile.erase( 0, std::string{ szTexturePath }.size() );
+        }
+        Output
+            << texturefile << ' '
+            << fTexLength << ' ';
+
+        texturefile = (
+            m_material2 != null_handle ?
+            GfxRenderer.Material( m_material2 ).name :
+            "none" );
+        if( texturefile.find( szTexturePath ) == 0 ) {
+            // don't include 'textures/' in the path
+            texturefile.erase( 0, std::string{ szTexturePath }.size() );
+        }
+        Output << texturefile << ' ';
+
+        Output
+            << (fTexHeight1 - fTexHeightOffset ) * ( ( iCategoryFlag & 4 ) ? -1 : 1 ) << ' '
+            << fTexWidth << ' '
+            << fTexSlope << ' ';
+    }
+    // path data
+    for( auto const &path : m_paths ) {
+        Output
+            << path.points[ segment_data::point::start ].x << ' '
+            << path.points[ segment_data::point::start ].y << ' '
+            << path.points[ segment_data::point::start ].z << ' '
+            << path.rolls[ 0 ] << ' '
+
+            << path.points[ segment_data::point::control1 ].x << ' '
+            << path.points[ segment_data::point::control1 ].y << ' '
+            << path.points[ segment_data::point::control1 ].z << ' '
+
+            << path.points[ segment_data::point::control2 ].x << ' '
+            << path.points[ segment_data::point::control2 ].y << ' '
+            << path.points[ segment_data::point::control2 ].z << ' '
+
+            << path.points[ segment_data::point::end ].x << ' '
+            << path.points[ segment_data::point::end ].y << ' '
+            << path.points[ segment_data::point::end ].z << ' '
+            << path.rolls[ 1 ] << ' '
+
+            << path.radius << ' ';
+    }
+    // optional attributes
+    if( false == asEvent0Name.empty() ) {
+        Output << "event0 " << asEvent0Name << ' ';
+    }
+    if( false == asEvent1Name.empty() ) {
+        Output << "event1 " << asEvent1Name << ' ';
+    }
+    if( false == asEvent2Name.empty() ) {
+        Output << "event2 " << asEvent2Name << ' ';
+    }
+    if( false == asEventall0Name.empty() ) {
+        Output << "eventall0 " << asEventall0Name << ' ';
+    }
+    if( false == asEventall1Name.empty() ) {
+        Output << "eventall1 " << asEventall1Name << ' ';
+    }
+    if( false == asEventall2Name.empty() ) {
+        Output << "eventall2 " << asEventall2Name << ' ';
+    }
+    if( ( SwitchExtension )
+     && ( SwitchExtension->fVelocity != -1.0 ) ) {
+        Output << "velocity " << SwitchExtension->fVelocity << ' ';
+    }
+    else {
+        if( fVelocity != -1.0 ) {
+            Output << "velocity " << fVelocity << ' ';
+        }
+    }
+    if( pIsolated ) {
+        Output << "isolated " << pIsolated->asName << ' ';
+    }
+    if( fOverhead != -1.0 ) {
+        Output << "overhead " << fOverhead << ' ';
+    }
+    // footer
+    Output
+        << "endtrack"
+        << "\n";
 }
 
 void TTrack::MovedUp1(float const dh)
 { // poprawienie przechyłki wymaga wydłużenia podsypki
     fTexHeight1 += dh;
+    fTexHeightOffset += dh;
 };
 
-void TTrack::VelocitySet(float v)
+// ustawienie prędkości z ograniczeniem do pierwotnej wartości (zapisanej w scenerii)
-{ // ustawienie prędkości z ograniczeniem do pierwotnej wartości (zapisanej w scenerii)
+void TTrack::VelocitySet(float v) {
-    if (SwitchExtension ? SwitchExtension->fVelocity >= 0.0 : false)
+    // TBD, TODO: add a variable to preserve potential speed limit set by the track configuration on basic track pieces
-    { // zwrotnica może mieć odgórne ograniczenie, nieprzeskakiwalne eventem
+    if( ( SwitchExtension )
-        if (v > SwitchExtension->fVelocity ? true : v < 0.0)
+     && ( SwitchExtension->fVelocity != -1 ) ) {
-            return void(fVelocity =
+        // zwrotnica może mieć odgórne ograniczenie, nieprzeskakiwalne eventem
-                            SwitchExtension->fVelocity); // maksymalnie tyle, ile było we wpisie
+        fVelocity =
+            min_speed<float>(
+                v,
+                ( SwitchExtension->fVelocity > 0 ?
+                    SwitchExtension->fVelocity : // positive limit applies to both switch tracks
+                    ( SwitchExtension->CurrentIndex == 0 ?
+                        -1 : // negative limit applies only to the diverging track
+                        -SwitchExtension->fVelocity ) ) );
     }
+    else {
         fVelocity = v; // nie ma ograniczenia
+    }
 };
 
 double TTrack::VelocityGet()
@@ -2800,11 +3081,13 @@ path_table::InitTracks() {
             track->AssignEvents(
                 simulation::Events.FindEvent( trackname + ":event0" ),
                 simulation::Events.FindEvent( trackname + ":event1" ),
-                simulation::Events.FindEvent( trackname + ":event2" ) );
+                simulation::Events.FindEvent( trackname + ":event2" ),
+                false );
             track->AssignallEvents(
                 simulation::Events.FindEvent( trackname + ":eventall0" ),
                 simulation::Events.FindEvent( trackname + ":eventall1" ),
-                simulation::Events.FindEvent( trackname + ":eventall2" ) );
+                simulation::Events.FindEvent( trackname + ":eventall2" ),
+                false );
         }
 
         switch (track->eType) {
@@ -2948,6 +3231,8 @@ path_table::InitTracks() {
             scene::node_data nodedata;
             nodedata.name = isolated->asName;
             auto *memorycell = new TMemCell( nodedata ); // to nie musi mieć nazwy, nazwa w wyszukiwarce wystarczy
+            // NOTE: autogenerated cells aren't exported; they'll be autogenerated anew when exported file is loaded
+            memorycell->is_exportable = false;
             simulation::Memory.insert( memorycell );
             isolated->pMemCell = memorycell; // wskaźnik komóki przekazany do odcinka izolowanego
         }

Track.h

@@ -124,7 +124,7 @@ private:
 };
 
 // trajektoria ruchu - opakowanie
-class TTrack : public editor::basic_node {
+class TTrack : public scene::basic_node {
 
     friend class opengl_renderer;
 
@@ -142,6 +142,7 @@ private:
     float fTexRatio1 = 1.0f; // proporcja boków tekstury nawierzchni (żeby zaoszczędzić na rozmiarach tekstur...)
     float fTexRatio2 = 1.0f; // proporcja boków tekstury chodnika (żeby zaoszczędzić na rozmiarach tekstur...)
     float fTexHeight1 = 0.6f; // wysokość brzegu względem trajektorii
+    float fTexHeightOffset = 0.f; // potential adjustment to account for the path roll
     float fTexWidth = 0.9f; // szerokość boku
     float fTexSlope = 0.9f;
 
@@ -152,6 +153,8 @@ private:
     geometryhandle_sequence Geometry1; // geometry chunks textured with texture 1
     geometryhandle_sequence Geometry2; // geometry chunks textured with texture 2
 
+    std::vector<segment_data> m_paths; // source data for owned paths
+
 public:
     typedef std::deque<TDynamicObject *> dynamics_sequence;
     dynamics_sequence Dynamics;
@@ -231,8 +234,8 @@ public:
                 SwitchExtension->iRoads - 1 :
                 1 ); }
     void Load(cParser *parser, Math3D::vector3 pOrigin);
-    bool AssignEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent2);
+    bool AssignEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent2, bool const Explicit = true );
-    bool AssignallEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent2);
+    bool AssignallEvents(TEvent *NewEvent0, TEvent *NewEvent1, TEvent *NewEvent2, bool const Explicit = true );
     bool AssignForcedEvents(TEvent *NewEventPlus, TEvent *NewEventMinus);
     bool CheckDynamicObject(TDynamicObject *Dynamic);
     bool AddDynamicObject(TDynamicObject *Dynamic);
@@ -270,10 +273,16 @@ public:
     double VelocityGet();
     void ConnectionsLog();
 
-protected:
+private:
-    // calculates path's bounding radius
+    // radius() subclass details, calculates node's bounding radius
-    void
+    float radius_();
-        radius_();
+    // serialize() subclass details, sends content of the subclass to provided stream
+    void serialize_( std::ostream &Output ) const;
+    // deserialize() subclass details, restores content of the subclass from provided stream
+    void deserialize_( std::istream &Input );
+    // export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+    void export_as_text_( std::ostream &Output ) const;
+
 };
 
 

Traction.cpp

@@ -529,18 +529,6 @@ double TTraction::VoltageGet(double u, double i)
     return 0.0; // gdy nie podłączony wcale?
 };
 
-// calculates path's bounding radius
-void
-TTraction::radius_() {
-
-    auto const points = endpoints();
-    for( auto &point : points ) {
-        m_area.radius = std::max(
-            m_area.radius,
-            static_cast<float>( glm::length( m_area.center - point ) ) );
-    }
-}
-
 glm::vec3
 TTraction::wire_color() const {
 
@@ -580,6 +568,7 @@ TTraction::wire_color() const {
         color.r *= Global.DayLight.ambient[ 0 ];
         color.g *= Global.DayLight.ambient[ 1 ];
         color.b *= Global.DayLight.ambient[ 2 ];
+        color *= 0.5f;
     }
     else {
         // tymczasowo pokazanie zasilanych odcinków
@@ -675,6 +664,77 @@ TTraction::wire_color() const {
     return color;
 }
 
+// radius() subclass details, calculates node's bounding radius
+float
+TTraction::radius_() {
+
+    auto const points { endpoints() };
+    auto radius { 0.f };
+    for( auto &point : points ) {
+        radius = std::max(
+            radius,
+            static_cast<float>( glm::length( m_area.center - point ) ) );
+    }
+    return radius;
+}
+
+// serialize() subclass details, sends content of the subclass to provided stream
+void
+TTraction::serialize_( std::ostream &Output ) const {
+
+    // TODO: implement
+}
+// deserialize() subclass details, restores content of the subclass from provided stream
+void
+TTraction::deserialize_( std::istream &Input ) {
+
+    // TODO: implement
+}
+
+// export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+void
+TTraction::export_as_text_( std::ostream &Output ) const {
+    // header
+    Output << "traction ";
+    // basic attributes
+    Output
+        << asPowerSupplyName << ' '
+        << NominalVoltage << ' '
+        << MaxCurrent << ' '
+        << ( fResistivity * 1000 ) << ' '
+        << (
+            Material == 2 ? "al" :
+            Material == 0 ? "none" :
+            "cu" ) << ' '
+        << WireThickness << ' '
+        << DamageFlag << ' ';
+    // path data
+    Output
+        << pPoint1.x << ' ' << pPoint1.y << ' ' << pPoint1.z << ' '
+        << pPoint2.x << ' ' << pPoint2.y << ' ' << pPoint2.z << ' '
+        << pPoint3.x << ' ' << pPoint3.y << ' ' << pPoint3.z << ' '
+        << pPoint4.x << ' ' << pPoint4.y << ' ' << pPoint4.z << ' ';
+    // minimum height
+    Output << ( ( pPoint3.y - pPoint1.y + pPoint4.y - pPoint2.y ) * 0.5 - fHeightDifference ) << ' ';
+    // segment length
+    Output << static_cast<int>( iNumSections ? glm::length( pPoint1 - pPoint2 ) / iNumSections : 0.0 ) << ' ';
+    // wire data
+    Output
+        << Wires << ' '
+        << WireOffset << ' ';
+    // visibility
+    // NOTE: 'invis' would be less wrong than 'unvis', but potentially incompatible with old 3rd party tools
+    Output << ( m_visible ? "vis" : "unvis" ) << ' ';
+    // optional attributes
+    if( false == asParallel.empty() ) {
+        Output << "parallel " << asParallel << ' ';
+    }
+    // footer
+    Output
+        << "endtraction"
+        << "\n";
+}
+
 
 
 // legacy method, initializes traction after deserialization from scenario file

Traction.h

@@ -18,7 +18,7 @@ http://mozilla.org/MPL/2.0/.
 
 class TTractionPowerSource;
 
-class TTraction : public editor::basic_node {
+class TTraction : public scene::basic_node {
 
     friend class opengl_renderer;
 
@@ -73,13 +73,18 @@ class TTraction : public editor::basic_node {
     void PowerSet(TTractionPowerSource *ps);
     double VoltageGet(double u, double i);
 
-protected:
-    // calculates piece's bounding radius
-    void
-        radius_();
-
 private:
+// methods
     glm::vec3 wire_color() const;
+    // radius() subclass details, calculates node's bounding radius
+    float radius_();
+    // serialize() subclass details, sends content of the subclass to provided stream
+    void serialize_( std::ostream &Output ) const;
+    // deserialize() subclass details, restores content of the subclass from provided stream
+    void deserialize_( std::istream &Input );
+    // export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+    void export_as_text_( std::ostream &Output ) const;
+
 };
 
 

TractionPower.cpp

@@ -141,6 +141,52 @@ void TTractionPowerSource::PowerSet(TTractionPowerSource *ps)
     // else ErrorLog("nie może być więcej punktów zasilania niż dwa");
 };
 
+// serialize() subclass details, sends content of the subclass to provided stream
+void
+TTractionPowerSource::serialize_( std::ostream &Output ) const {
+
+    // TODO: implement
+}
+
+// deserialize() subclass details, restores content of the subclass from provided stream
+void
+TTractionPowerSource::deserialize_( std::istream &Input ) {
+
+    // TODO: implement
+}
+
+// export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+void
+TTractionPowerSource::export_as_text_( std::ostream &Output ) const {
+    // header
+    Output << "tractionpowersource ";
+    // placement
+    Output
+        << location().x << ' '
+        << location().y << ' '
+        << location().z << ' ';
+    // basic attributes
+    Output
+        << NominalVoltage << ' '
+        << VoltageFrequency << ' '
+        << InternalRes << ' '
+        << MaxOutputCurrent << ' '
+        << FastFuseTimeOut << ' '
+        << FastFuseRepetition << ' '
+        << SlowFuseTimeOut << ' ';
+    // optional attributes
+    if( true == Recuperation ) {
+        Output << "recuperation ";
+    }
+    if( true == bSection ) {
+        Output << "section ";
+    }
+    // footer
+    Output
+        << "end"
+        << "\n";
+}
+
 
 
 // legacy method, calculates changes in simulation state over specified time

TractionPower.h

@@ -13,9 +13,33 @@ http://mozilla.org/MPL/2.0/.
 #include "scenenode.h"
 #include "names.h"
 
-class TTractionPowerSource : public editor::basic_node {
+class TTractionPowerSource : public scene::basic_node {
 
-  private:
+public:
+// constructor
+    TTractionPowerSource( scene::node_data const &Nodedata );
+// methods
+    void Init(double const u, double const i);
+    bool Load(cParser *parser);
+    bool Update(double dt);
+    double CurrentGet(double res);
+    void VoltageSet(double const v) {
+        NominalVoltage = v; };
+    void PowerSet(TTractionPowerSource *ps);
+// members
+    TTractionPowerSource *psNode[ 2 ] = { nullptr, nullptr }; // zasilanie na końcach dla sekcji
+    bool bSection = false; // czy jest sekcją
+
+private:
+// methods
+    // serialize() subclass details, sends content of the subclass to provided stream
+    void serialize_( std::ostream &Output ) const;
+    // deserialize() subclass details, restores content of the subclass from provided stream
+    void deserialize_( std::istream &Input );
+    // export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+    void export_as_text_( std::ostream &Output ) const;
+
+// members
     double NominalVoltage = 0.0;
     double VoltageFrequency = 0.0;
     double InternalRes = 0.2;
@@ -34,20 +58,6 @@ class TTractionPowerSource : public editor::basic_node {
     double FuseTimer = 0.0;
     int FuseCounter = 0;
 
-public:
-    // zmienne publiczne
-    TTractionPowerSource *psNode[ 2 ] = { nullptr, nullptr }; // zasilanie na końcach dla sekcji
-    bool bSection = false; // czy jest sekcją
-
-    TTractionPowerSource( scene::node_data const &Nodedata );
-
-    void Init(double const u, double const i);
-    bool Load(cParser *parser);
-    bool Update(double dt);
-    double CurrentGet(double res);
-    void VoltageSet(double const v) {
-        NominalVoltage = v; };
-    void PowerSet(TTractionPowerSource *ps);
 };
 
 

World.cpp

@@ -311,7 +311,6 @@ bool TWorld::Init( GLFWwindow *Window ) {
 
 void TWorld::OnKeyDown(int cKey) {
     // dump keypress info in the log
-    if( !Global.iPause ) {
     // podczas pauzy klawisze nie działają
     std::string keyinfo;
     auto keyname = glfwGetKeyName( cKey, 0 );
@@ -354,7 +353,6 @@ void TWorld::OnKeyDown(int cKey) {
 
         WriteLog( "Key pressed: " + keymodifiers + "[" + keyinfo + "]" );
     }
-    }
 
     // actual key processing
     // TODO: redo the input system
@@ -504,6 +502,14 @@ void TWorld::OnKeyDown(int cKey) {
                 }
                 break;
             }
+            case GLFW_KEY_F11: {
+                // scenery export
+                if( Global.ctrlState
+                 && Global.shiftState ) {
+                    simulation::State.export_as_text( Global.SceneryFile );
+                }
+                break;
+            }
             case GLFW_KEY_F12: {
                 // quick debug mode toggle
                 if( Global.ctrlState

scene.cpp

@@ -228,6 +228,17 @@ basic_cell::deserialize( std::istream &Input ) {
      || ( false == m_lines.empty() ) );
 }
 
+// sends content of the class in legacy (text) format to provided stream
+void
+basic_cell::export_as_text( std::ostream &Output ) const {
+
+    // text format export dumps only relevant basic objects
+    // sounds
+    for( auto const *sound : m_sounds ) {
+        sound->export_as_text( Output );
+    }
+}
+
 // adds provided shape to the cell
 void
 basic_cell::insert( shape_node Shape ) {
@@ -530,7 +541,7 @@ basic_cell::create_geometry( gfx::geometrybank_handle const &Bank ) {
 
 // adjusts cell bounding area to enclose specified node
 void
-basic_cell::enclose_area( editor::basic_node *Node ) {
+basic_cell::enclose_area( scene::basic_node *Node ) {
 
     m_area.radius = std::max(
         m_area.radius,
@@ -645,6 +656,16 @@ basic_section::deserialize( std::istream &Input ) {
     }
 }
 
+// sends content of the class in legacy (text) format to provided stream
+void
+basic_section::export_as_text( std::ostream &Output ) const {
+
+    // text format export dumps only relevant basic objects from non-empty cells
+    for( auto const &cell : m_cells ) {
+        cell.export_as_text( Output );
+    }
+}
+
 // adds provided shape to the section
 void
 basic_section::insert( shape_node Shape ) {
@@ -949,6 +970,18 @@ basic_region::deserialize( std::string const &Scenariofile ) {
     return true;
 }
 
+// sends content of the class in legacy (text) format to provided stream
+void
+basic_region::export_as_text( std::ostream &Output ) const {
+
+    for( auto *section : m_sections ) {
+        // text format export dumps only relevant basic objects from non-empty sections
+        if( section != nullptr ) {
+            section->export_as_text( Output );
+        }
+    }
+}
+
 // legacy method, links specified path piece with potential neighbours
 void
 basic_region::TrackJoin( TTrack *Track ) {

scene.h

@@ -88,6 +88,9 @@ public:
     // restores content of the class from provided stream
     void
         deserialize( std::istream &Input );
+    // sends content of the class in legacy (text) format to provided stream
+    void
+        export_as_text( std::ostream &Output ) const;
     // adds provided shape to the cell
     void
         insert( shape_node Shape );
@@ -149,7 +152,7 @@ private:
     using eventlauncher_sequence = std::vector<TEventLauncher *>;
 // methods
     void
-        enclose_area( editor::basic_node *Node );
+        enclose_area( scene::basic_node *Node );
 // members
     scene::bounding_area m_area { glm::dvec3(), static_cast<float>( 0.5 * M_SQRT2 * EU07_CELLSIZE ) };
     bool m_active { false }; // whether the cell holds any actual data
@@ -199,6 +202,9 @@ public:
     // restores content of the class from provided stream
     void
         deserialize( std::istream &Input );
+    // sends content of the class in legacy (text) format to provided stream
+    void
+        export_as_text( std::ostream &Output ) const;
     // adds provided shape to the section
     void
         insert( shape_node Shape );
@@ -289,6 +295,9 @@ public:
     // restores content of the class from file with specified name. returns: true on success, false otherwise
     bool
         deserialize( std::string const &Scenariofile );
+    // sends content of the class in legacy (text) format to provided stream
+    void
+        export_as_text( std::ostream &Output ) const;
     // legacy method, links specified path piece with potential neighbours
     void
         TrackJoin( TTrack *Track );

scenenode.cpp

@@ -142,7 +142,7 @@ shape_node::deserialize( std::istream &Input ) {
 
 // restores content of the node from provided input stream
 shape_node &
-shape_node::deserialize( cParser &Input, scene::node_data const &Nodedata ) {
+shape_node::import( cParser &Input, scene::node_data const &Nodedata ) {
 
     // import common data
     m_name = Nodedata.name;
@@ -523,7 +523,7 @@ lines_node::deserialize( std::istream &Input ) {
 
 // restores content of the node from provded input stream
 lines_node &
-lines_node::deserialize( cParser &Input, scene::node_data const &Nodedata ) {
+lines_node::import( cParser &Input, scene::node_data const &Nodedata ) {
 
     // import common data
     m_name = Nodedata.name;
@@ -684,12 +684,9 @@ memory_node::deserialize( cParser &Input, node_data const &Nodedata ) {
     memorycell.Load( &Input );
 }
 */
-} // scene
 
 
 
-namespace editor {
-
 basic_node::basic_node( scene::node_data const &Nodedata ) :
     m_name( Nodedata.name )
 {
@@ -700,23 +697,69 @@ basic_node::basic_node( scene::node_data const &Nodedata ) :
             std::numeric_limits<double>::max() );
 }
 
+// sends content of the class to provided stream
+void
+basic_node::serialize( std::ostream &Output ) const {
+    // bounding area
+    m_area.serialize( Output );
+    // visibility
+    sn_utils::ls_float64( Output, m_rangesquaredmin );
+    sn_utils::ls_float64( Output, m_rangesquaredmax );
+    sn_utils::s_bool( Output, m_visible );
+    // name
+    sn_utils::s_str( Output, m_name );
+    // template method implementation
+    serialize_( Output );
+}
+
+// restores content of the class from provided stream
+void
+basic_node::deserialize( std::istream &Input ) {
+    // bounding area
+    m_area.deserialize( Input );
+    // visibility
+    m_rangesquaredmin = sn_utils::ld_float64( Input );
+    m_rangesquaredmax = sn_utils::ld_float64( Input );
+    m_visible = sn_utils::d_bool( Input );
+    // name
+    m_name = sn_utils::d_str( Input );
+    // template method implementation
+    deserialize_( Input );
+}
+
+// sends basic content of the class in legacy (text) format to provided stream
+void
+basic_node::export_as_text( std::ostream &Output ) const {
+
+    Output
+        // header
+        << "node"
+        // visibility
+        << ' ' << ( m_rangesquaredmax < std::numeric_limits<double>::max() ? std::sqrt( m_rangesquaredmax ) : -1 )
+        << ' ' << std::sqrt( m_rangesquaredmin )
+        // name
+        << ' ' << m_name << ' ';
+    // template method implementation
+    export_as_text_( Output );
+}
+
 float const &
 basic_node::radius() {
 
     if( m_area.radius == -1.0 ) {
         // calculate if needed
-        radius_();
+        m_area.radius = radius_();
     }
     return m_area.radius;
 }
 
 // radius() subclass details, calculates node's bounding radius
 // by default nodes are 'virtual don't extend from their center point
-void
+float
 basic_node::radius_() {
     
-    m_area.radius = 0.f;
+    return 0.f;
 }
 
-} // editor
+} // scene
 //---------------------------------------------------------------------------

scenenode.h

@@ -112,7 +112,7 @@ public:
         deserialize( std::istream &Input );
     // restores content of the node from provided input stream
     shape_node &
-        deserialize( cParser &Input, scene::node_data const &Nodedata );
+        import( cParser &Input, scene::node_data const &Nodedata );
     // imports data from provided submodel
     shape_node &
         convert( TSubModel const *Submodel );
@@ -201,7 +201,7 @@ public:
         deserialize( std::istream &Input );
     // restores content of the node from provided input stream
     lines_node &
-        deserialize( cParser &Input, scene::node_data const &Nodedata );
+        import( cParser &Input, scene::node_data const &Nodedata );
     // adds content of provided node to already enclosed geometry. returns: true if merge could be performed
     bool
         merge( lines_node &Lines );
@@ -295,12 +295,9 @@ private:
     TTrack * m_path;
 };
 */
-} // scene
 
 
 
-namespace editor {
-
 // base interface for nodes which can be actvated in scenario editor
 struct basic_node {
 
@@ -310,6 +307,15 @@ public:
 // destructor
     virtual ~basic_node() = default;
 // methods
+    // sends content of the class to provided stream
+    void
+        serialize( std::ostream &Output ) const;
+    // restores content of the class from provided stream
+    void
+        deserialize( std::istream &Input );
+    // sends basic content of the class in legacy (text) format to provided stream
+    void
+        export_as_text( std::ostream &Output ) const;
     std::string const &
         name() const;
     void
@@ -324,15 +330,23 @@ public:
         visible() const;
 
 protected:
-// methods
-    // radius() subclass details, calculates node's bounding radius
-    virtual void radius_();
 // members
     scene::bounding_area m_area;
-    bool m_visible { true };
     double m_rangesquaredmin { 0.0 }; // visibility range, min
     double m_rangesquaredmax { 0.0 }; // visibility range, max
+    bool m_visible { true }; // visibility flag
     std::string m_name;
+
+private:
+// methods
+    // radius() subclass details, calculates node's bounding radius
+    virtual float radius_();
+    // serialize() subclass details, sends content of the subclass to provided stream
+    virtual void serialize_( std::ostream &Output ) const = 0;
+    // deserialize() subclass details, restores content of the subclass from provided stream
+    virtual void deserialize_( std::istream &Input ) = 0;
+    // export() subclass details, sends basic content of the class in legacy (text) format to provided stream
+    virtual void export_as_text_( std::ostream &Output ) const = 0;
 };
 
 inline
@@ -365,6 +379,6 @@ basic_node::visible() const {
     return m_visible;
 }
 
-} // editor
+} // scene
 
 //---------------------------------------------------------------------------

simulation.cpp

@@ -16,6 +16,7 @@ http://mozilla.org/MPL/2.0/.
 #include "uilayer.h"
 #include "renderer.h"
 
+
 namespace simulation {
 
 state_manager State;
@@ -57,8 +58,6 @@ state_manager::deserialize( std::string const &Scenariofile ) {
         // as long as the scenario file wasn't rainsted-created base file override
         Region->serialize( Scenariofile );
     }
-
-    Global.iPause &= ~0x10; // koniec pauzy wczytywania
     return true;
 }
 
@@ -409,7 +408,7 @@ state_manager::deserialize_node( cParser &Input, scene::scratch_data &Scratchpad
         if( false == Scratchpad.binary.terrain ) {
 
             simulation::Region->insert_shape(
-                scene::shape_node().deserialize(
+                scene::shape_node().import(
                     Input, nodedata ),
                 Scratchpad,
                 true );
@@ -426,7 +425,7 @@ state_manager::deserialize_node( cParser &Input, scene::scratch_data &Scratchpad
         if( false == Scratchpad.binary.terrain ) {
 
             simulation::Region->insert_lines(
-                scene::lines_node().deserialize(
+                scene::lines_node().import(
                     Input, nodedata ),
                 Scratchpad );
         }
@@ -439,7 +438,7 @@ state_manager::deserialize_node( cParser &Input, scene::scratch_data &Scratchpad
 
         auto *memorycell { deserialize_memorycell( Input, Scratchpad, nodedata ) };
         if( false == simulation::Memory.insert( memorycell ) ) {
-            ErrorLog( "Bad scenario: memory cell with duplicate name \"" + memorycell->name() + "\" encountered in file \"" + Input.Name() + "\" (line " + std::to_string( inputline ) + ")" );
+            ErrorLog( "Bad scenario: memory memorycell with duplicate name \"" + memorycell->name() + "\" encountered in file \"" + Input.Name() + "\" (line " + std::to_string( inputline ) + ")" );
         }
 /*
         // TODO: implement this
@@ -897,6 +896,65 @@ state_manager::transform( glm::dvec3 Location, scene::scratch_data const &Scratc
     return Location;
 }
 
+
+// stores class data in specified file, in legacy (text) format
+void
+state_manager::export_as_text( std::string const &Scenariofile ) const {
+
+    if( Scenariofile == "$.scn" ) {
+        ErrorLog( "Bad file: scenery export not supported for file \"$.scn\"" );
+    }
+    else {
+        WriteLog( "Scenery data export in progress..." );
+    }
+
+    auto filename { Scenariofile };
+    while( filename[ 0 ] == '$' ) {
+        // trim leading $ char rainsted utility may add to the base name for modified .scn files
+        filename.erase( 0, 1 );
+    }
+    erase_extension( filename );
+    filename = Global.asCurrentSceneryPath + filename + "_export";
+
+    std::ofstream scmfile { filename + ".scm" };
+    // tracks
+    scmfile << "// paths\n";
+    for( auto const *path : Paths.sequence() ) {
+        path->export_as_text( scmfile );
+    }
+    // traction
+    scmfile << "// traction\n";
+    for( auto const *traction : Traction.sequence() ) {
+        traction->export_as_text( scmfile );
+    }
+    // power grid
+    scmfile << "// traction power sources\n";
+    for( auto const *powersource : Powergrid.sequence() ) {
+        powersource->export_as_text( scmfile );
+    }
+    // models
+    scmfile << "// instanced models\n";
+    for( auto const *instance : Instances.sequence() ) {
+        instance->export_as_text( scmfile );
+    }
+    // sounds
+    scmfile << "// sounds\n";
+    Region->export_as_text( scmfile );
+
+    std::ofstream ctrfile { filename + ".ctr" };
+    // mem cells
+    ctrfile << "// memory cells\n";
+    for( auto const *memorycell : Memory.sequence() ) {
+        if( true == memorycell->is_exportable ) {
+            memorycell->export_as_text( ctrfile );
+        }
+    }
+    // events
+    Events.export_as_text( ctrfile );
+
+    WriteLog( "Scenery data export done." );
+}
+
 } // simulation
 
 //---------------------------------------------------------------------------

simulation.h

@@ -36,6 +36,9 @@ public:
         update( double Deltatime, int Iterationcount );
     bool
         deserialize( std::string const &Scenariofile );
+    // stores class data in specified file, in legacy (text) format
+    void
+        export_as_text( std::string const &Scenariofile ) const;
 
 private:
 // methods
@@ -69,6 +72,7 @@ private:
     void skip_until( cParser &Input, std::string const &Token );
     // transforms provided location by specifed rotation and offset
     glm::dvec3 transform( glm::dvec3 Location, scene::scratch_data const &Scratchpad );
+
 };
 
 extern state_manager State;

sound.cpp

@@ -293,6 +293,43 @@ sound_source::deserialize_soundset( cParser &Input ) {
     }
 }
 
+// sends content of the class in legacy (text) format to provided stream
+// NOTE: currently exports only the main sound
+void
+sound_source::export_as_text( std::ostream &Output ) const {
+
+    if( sound( sound_id::main ).buffer == null_handle ) { return;  }
+
+    // generic node header
+    Output
+        << "node "
+        // visibility
+        << m_range << ' '
+        << 0 << ' '
+        // name
+        << m_name << ' ';
+    // sound node header
+    Output
+        << "sound ";
+    // location
+    Output
+        << m_offset.x << ' '
+        << m_offset.y << ' '
+        << m_offset.z << ' ';
+    // sound data
+    auto soundfile { audio::renderer.buffer( sound( sound_id::main ).buffer ).name };
+    if( soundfile.find( szSoundPath ) == 0 ) {
+        // don't include 'sounds/' in the path
+        soundfile.erase( 0, std::string{ szSoundPath }.size() );
+    }
+    Output
+        << soundfile << ' ';
+    // footer
+    Output
+        << "endsound"
+        << "\n";
+}
+
 // copies list of sounds from provided source
 sound_source &
 sound_source::copy_sounds( sound_source const &Source ) {

sound.h

@@ -60,6 +60,9 @@ public:
         deserialize( cParser &Input, sound_type const Legacytype, int const Legacyparameters = 0, int const Chunkrange = 100 );
     sound_source &
         deserialize( std::string const &Input, sound_type const Legacytype, int const Legacyparameters = 0 );
+    // sends content of the class in legacy (text) format to provided stream
+    void
+        export_as_text( std::ostream &Output ) const;
     // copies list of sounds from provided source
     sound_source &
         copy_sounds( sound_source const &Source );

uilayer.cpp

@@ -98,6 +98,7 @@ ui_layer::on_key( int const Key, int const Action ) {
         case GLFW_KEY_F8:
         case GLFW_KEY_F9:
         case GLFW_KEY_F10:
+        case GLFW_KEY_F11:
         case GLFW_KEY_F12: { // ui mode selectors
 
             if( ( true == Global.ctrlState )