X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FMain%2Fmain.cxx;h=d120c8f58d5d7ecf63f478416aa63d1d6a1aeffe;hb=45390e0655fffa45a16cba77fafdd9421ed7d6e2;hp=30caafe1f7d2fe5ec15f46672f194f2b50ed5fa1;hpb=2aca8ca2cf9ecef0f28cdc4f3f7882de0d042e33;p=flightgear.git

diff --git a/src/Main/main.cxx b/src/Main/main.cxx
index 30caafe1f..d120c8f58 100644
--- a/src/Main/main.cxx
+++ b/src/Main/main.cxx
@@ -25,6 +25,9 @@
 #  include <config.h>
 #endif
 
+#include <simgear/compiler.h>
+#include <simgear/misc/exception.hxx>
+
 #ifdef SG_MATH_EXCEPTION_CLASH
 #  include <math.h>
 #endif
@@ -35,7 +38,7 @@
 #endif
 
 #include <GL/glut.h>
-#include <simgear/xgl/xgl.h>
+#include <GL/gl.h>
 
 #include <stdio.h>
 #include <string.h>
@@ -53,6 +56,11 @@
 #  include <unistd.h>		// for stat()
 #endif
 
+// #ifdef HAVE_LIBX11
+// #  include <GL/glext.h>
+// #endif
+
+#include <plib/netChat.h>
 #include <plib/pu.h>
 #include <plib/ssg.h>
 
@@ -77,10 +85,11 @@
 #include <FDM/UIUCModel/uiuc_aircraftdir.h>
 #include <GUI/gui.h>
 #include <GUI/sgVec3Slider.hxx>
-#include <Joystick/joystick.hxx>
+// #include <Joystick/joystick.hxx>
 #ifdef FG_NETWORK_OLK
 #include <NetworkOLK/network.h>
 #endif
+#include <Objects/matlib.hxx>
 #include <Scenery/scenery.hxx>
 #include <Scenery/tilemgr.hxx>
 #ifdef ENABLE_AUDIO_SUPPORT
@@ -93,6 +102,8 @@
 #include <Time/sunpos.hxx>
 #include <Time/tmp.hxx>
 
+#include <Input/input.hxx>
+
 // begin - added Venky
 //    $$$ begin - added VS Renganathan
 #include <simgear/misc/sgstream.hxx>
@@ -116,12 +127,12 @@ int objc=0;
 
 #include "version.h"
 
-#include "bfi.hxx"
 #include "fg_init.hxx"
 #include "fg_io.hxx"
+#include "fg_props.hxx"
 #include "globals.hxx"
-#include "keyboard.hxx"
 #include "splash.hxx"
+#include "viewmgr.hxx"
 
 #ifdef macintosh
 #  include <console.h>		// -dw- for command line dialog
@@ -305,10 +316,83 @@ void fgInitVisuals( void ) {
 }
 
 
+// For HiRes screen Dumps using Brian Pauls TR Library
+void trRenderFrame( void ) {
+
+    if ( fgPanelVisible() ) {
+        GLfloat height = fgGetInt("/sim/startup/ysize");
+        GLfloat view_h =
+            (current_panel->getViewHeight() - current_panel->getYOffset())
+            * (height / 768.0) + 1;
+        glTranslatef( 0.0, view_h, 0.0 );
+    }
+
+    static double m_log01      = -log( 0.01 );
+    static double sqrt_m_log01 = sqrt( m_log01 );
+
+    static GLfloat black[4] = { 0.0, 0.0, 0.0, 1.0 };
+    static GLfloat white[4] = { 1.0, 1.0, 1.0, 1.0 };
+
+    fgLIGHT *l = &cur_light_params;
+
+    glClearColor(l->adj_fog_color[0], l->adj_fog_color[1], 
+                 l->adj_fog_color[2], l->adj_fog_color[3]);
+
+    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+    // set the opengl state to known default values
+    default_state->force();
+
+    // update fog params
+    double actual_visibility       = thesky->get_visibility();
+    // GLfloat fog_exp_density        = m_log01 / actual_visibility;
+    GLfloat fog_exp2_density       = sqrt_m_log01 / actual_visibility;
+    GLfloat fog_exp2_punch_through = sqrt_m_log01 / ( actual_visibility * 1.5 );
+
+    glEnable( GL_FOG );
+    glFogf  ( GL_FOG_DENSITY, fog_exp2_density);
+    glFogi  ( GL_FOG_MODE,    GL_EXP2 );
+    glFogfv ( GL_FOG_COLOR,   l->adj_fog_color );
+
+    // GL_LIGHT_MODEL_AMBIENT has a default non-zero value so if
+    // we only update GL_AMBIENT for our lights we will never get
+    // a completely dark scene.  So, we set GL_LIGHT_MODEL_AMBIENT
+    // explicitely to black.
+    glLightModelfv( GL_LIGHT_MODEL_AMBIENT, black );
+
+    ssgGetLight( 0 ) -> setColour( GL_AMBIENT, l->scene_ambient );
+
+    // texture parameters
+    glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ) ;
+    glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST ) ;
+
+    // we need a white diffuse light for the phase of the moon
+    ssgGetLight( 0 ) -> setColour( GL_DIFFUSE, white );
+    thesky->preDraw();
+
+    // draw the ssg scene
+    // return to the desired diffuse color
+    ssgGetLight( 0 ) -> setColour( GL_DIFFUSE, l->scene_diffuse );
+    glEnable( GL_DEPTH_TEST );
+    ssgCullAndDraw( scene );
+
+    // draw the lights
+    glFogf (GL_FOG_DENSITY, fog_exp2_punch_through);
+    ssgCullAndDraw( lighting );
+
+    thesky->postDraw( cur_fdm_state->get_Altitude() * SG_FEET_TO_METER );
+
+    // need to do this here as hud_and_panel state is static to
+    // main.cxx  and HUD and Panel routines have to be called with
+    // knowledge of the the TR struct < see gui.cxx::HighResDump()
+    hud_and_panel->apply();
+}
+
+
 // Update all Visuals (redraws anything graphics related)
 void fgRenderFrame( void ) {
-    // Update the BFI.
-    FGBFI::update();
+    // Update the default (kludged) properties.
+    fgUpdateProps();
 
     fgLIGHT *l = &cur_light_params;
     static double last_visibility = -9999;
@@ -365,7 +449,7 @@ void fgRenderFrame( void ) {
 
 	sgVec3 po;		// chase view pilot_offset
 	sgVec3 wup;		// chase view world up
-	sgSetVec3( po, 0.0, 0.0, 50.0 );
+	sgSetVec3( po, 0.0, 0.0, 100.0 );
 	sgCopyVec3( wup, pilot_view->get_world_up() );
 	sgMat4 CXFM;		// chase view + pilot offset xform
 	sgMakeRotMat4( CXFM,
@@ -634,14 +718,15 @@ void fgRenderFrame( void ) {
 
 	    // set up moving parts
 	    if (flaps_selector != NULL) {
-	      flaps_selector->select( (controls.get_flaps() > 0.5f) ? 1 : 2 );
+		flaps_selector->select( (globals->get_controls()->get_flaps() > 0.5f) ? 1 : 2 );
 	    }
 
 	    if (prop_selector != NULL) {
 	      int propsel_mask = 0;
+	      double rpm = fgGetDouble("/engines/engine[0]/rpm");
 	      for (int i = 0; i < acmodel_npropsettings; i++) {
-		if (FGBFI::getRPM() >= acmodel_proprpms[i][0] &&
-		    FGBFI::getRPM() <= acmodel_proprpms[i][1]) {
+		if (rpm >= acmodel_proprpms[i][0] &&
+		    rpm <= acmodel_proprpms[i][1]) {
 		  propsel_mask |= 1 << i;
 		}
 	      }
@@ -712,8 +797,11 @@ void fgRenderFrame( void ) {
 	// glDisable( GL_CULL_FACE );
 	// glDisable( GL_TEXTURE_2D );
 
+	// update the input subsystem
+	current_input.update();
+
 	// update the controls subsystem
-	controls.update();
+	globals->get_controls()->update();
 
 	hud_and_panel->apply();
 	fgCockpitUpdate();
@@ -787,9 +875,9 @@ void fgUpdateTimeDepCalcs() {
 	cur_fdm_state->update( 0 );
 	FGSteam::update( 0 );
 
-	if ( global_tile_mgr.queue_size() == 0 ) {
+	//if ( global_tile_mgr.queue_size() == 0 ) {
 	    initial_freeze = false;
-	}
+	    //}
     }
 
     if ( fgGetString("/sim/view-mode") == "pilot" ) {
@@ -896,10 +984,10 @@ static void fgMainLoop( void ) {
 
 #if defined( ENABLE_PLIB_JOYSTICK )
     // Read joystick and update control settings
-    if ( fgGetString("/sim/control-mode") == "joystick" )
-    {
-	fgJoystickRead();
-    }
+    // if ( fgGetString("/sim/control-mode") == "joystick" )
+    // {
+    //    fgJoystickRead();
+    // }
 #elif defined( ENABLE_GLUT_JOYSTICK )
     // Glut joystick support works by feeding a joystick handler
     // function to glut.  This is taken care of once in the joystick
@@ -941,6 +1029,8 @@ static void fgMainLoop( void ) {
 	   cur_fdm_state->get_Runway_altitude() * SG_FEET_TO_METER,
 	   cur_fdm_state->get_Altitude() * SG_FEET_TO_METER); */
 
+    // cout << "Warp = " << globals->get_warp() << endl;
+
     // update "time"
     if ( globals->get_warp_delta() != 0 ) {
 	globals->inc_warp( globals->get_warp_delta() );
@@ -1035,6 +1125,9 @@ static void fgMainLoop( void ) {
 			    cur_fdm_state->get_Latitude()
                             * SGD_RADIANS_TO_DEGREES );
 
+    // see if we need to load any deferred-load textures
+    material_lib.load_next_deferred();
+
     // Process/manage pending events
     global_events.Process();
 
@@ -1084,7 +1177,8 @@ static void fgMainLoop( void ) {
 	    s1->set_pitch( pitch );
 	    s1->set_volume( volume );
 	} else {
-	    double param = controls.get_throttle( 0 ) * 2.0 + 1.0;
+	    double param
+		= globals->get_controls()->get_throttle( 0 ) * 2.0 + 1.0;
 	    s1->set_pitch( param );
 	    s1->set_volume( param );
 	}
@@ -1119,20 +1213,42 @@ static void fgIdleFunction ( void ) {
 	
 	idle_state++;
     } else if ( idle_state == 1 ) {
+	// Initialize audio support
+#ifdef ENABLE_AUDIO_SUPPORT
+
 	// Start the intro music
 #if !defined(WIN32)
 	if ( fgGetBool("/sim/startup/intro-music") ) {
-	    string lockfile = "/tmp/mpg123.running";
 	    SGPath mp3file( globals->get_fg_root() );
 	    mp3file.append( "Sounds/intro.mp3" );
 
-	    string command = "(touch " + lockfile + "; mpg123 "
-		+ mp3file.str() + "> /dev/null 2>&1; /bin/rm "
-		+ lockfile + ") &";
 	    SG_LOG( SG_GENERAL, SG_INFO, 
 		    "Starting intro music: " << mp3file.str() );
+
+	    string command = "mpg123 " + mp3file.str() + "> /dev/null 2>&1";
 	    system ( command.c_str() );
 	}
+#endif // !WIN32
+
+	FGSoundMgr *soundmgr = new FGSoundMgr;
+	globals->set_soundmgr( soundmgr );
+
+	if ( fgGetBool("/sim/sound") ) {
+	    globals->get_soundmgr()->init();
+
+	    s1 = new FGSimpleSound( fgGetString("/sim/sounds/engine",
+						"Sounds/wasp.wav") );
+	    globals->get_soundmgr()->add( s1, "engine loop" );
+	    globals->get_soundmgr()->play_looped( "engine loop" );
+	    SG_LOG( SG_GENERAL, SG_INFO,
+		    "Rate = " << s1->get_sample()->getRate()
+		    << "  Bps = " << s1->get_sample()->getBps()
+		    << "  Stereo = " << s1->get_sample()->getStereo() );
+
+	    // s2 = new FGSimpleSound( "Sounds/corflaps.wav" );
+	    // s2->set_volume( 0.3 );
+	    // globals->get_soundmgr()->add( s2, "flaps" );
+	}
 #endif
 
 	idle_state++;
@@ -1168,47 +1284,6 @@ static void fgIdleFunction ( void ) {
 
 	idle_state++;
     } else if ( idle_state == 6 ) {
-	// Initialize audio support
-#ifdef ENABLE_AUDIO_SUPPORT
-
-#if !defined(WIN32)
-	if ( fgGetBool("/sim/startup/intro-music") ) {
-	    // Let's wait for mpg123 to finish
-	    string lockfile = "/tmp/mpg123.running";
-	    struct stat stat_buf;
-
-	    SG_LOG( SG_GENERAL, SG_INFO, 
-		    "Waiting for mpg123 player to finish ..." );
-	    while ( stat(lockfile.c_str(), &stat_buf) == 0 ) {
-		// file exist, wait ...
-		sleep(1);
-		SG_LOG( SG_GENERAL, SG_INFO, ".");
-	    }
-	    SG_LOG( SG_GENERAL, SG_INFO, "");
-	}
-#endif // WIN32
-
-	if ( fgGetBool("/sim/sound") ) {
-	    globals->get_soundmgr()->init();
-
-	    s1 = new FGSimpleSound( fgGetString("/sim/sounds/engine",
-						"Sounds/wasp.wav") );
-	    globals->get_soundmgr()->add( s1, "engine loop" );
-	    globals->get_soundmgr()->play_looped( "engine loop" );
-	    SG_LOG( SG_GENERAL, SG_INFO,
-		    "Rate = " << s1->get_sample()->getRate()
-		    << "  Bps = " << s1->get_sample()->getBps()
-		    << "  Stereo = " << s1->get_sample()->getStereo() );
-
-	    s2 = new FGSimpleSound( "Sounds/corflaps.wav" );
-	    // FGMorse mmm;
-	    // mmm.init();
-	    // s2 = mmm.make_ident( "JLI" );
-	    s2->set_volume( 0.3 );
-	    globals->get_soundmgr()->add( s2, "flaps" );
-	}
-#endif
-
 	// sleep(1);
 	idle_state = 1000;
 
@@ -1334,8 +1409,10 @@ int fgGlutInitEvents( void ) {
     glutReshapeFunc( fgReshape );
 
     // call GLUTkey() on keyboard event
-    glutKeyboardFunc( GLUTkey );
-    glutSpecialFunc( GLUTspecialkey );
+    glutKeyboardFunc(GLUTkey);
+    glutKeyboardUpFunc(GLUTkeyup);
+    glutSpecialFunc(GLUTspecialkey);
+    glutSpecialUpFunc(GLUTspecialkeyup);
 
     // call guiMouseFunc() whenever our little rodent is used
     glutMouseFunc ( guiMouseFunc );
@@ -1353,8 +1430,8 @@ int fgGlutInitEvents( void ) {
 }
 
 
-// Main ...
-int main( int argc, char **argv ) {
+// Main loop
+int mainLoop( int argc, char **argv ) {
 
 #if defined( macintosh )
     freopen ("stdout.txt", "w", stdout );
@@ -1381,9 +1458,7 @@ int main( int argc, char **argv ) {
     // Allocate global data structures.  This needs to happen before
     // we parse command line options
 
-    SGPropertyNode *props = new SGPropertyNode;
     globals = new FGGlobals;
-    globals->set_props( props );
 
     // seed the random number generater
     sg_srandom_time();
@@ -1391,10 +1466,8 @@ int main( int argc, char **argv ) {
     SGRoute *route = new SGRoute;
     globals->set_route( route );
 
-#ifdef ENABLE_AUDIO_SUPPORT
-    FGSoundMgr *soundmgr = new FGSoundMgr;
-    globals->set_soundmgr( soundmgr );
-#endif
+    FGControls *controls = new FGControls;
+    globals->set_controls( controls );
 
     FGViewMgr *viewmgr = new FGViewMgr;
     globals->set_viewmgr( viewmgr );
@@ -1415,6 +1488,15 @@ int main( int argc, char **argv ) {
     // fg_root was specified (ignore all other options for now)
     fgInitFGRoot(argc, argv);
 
+    // Check for the correct base package version
+    string base_version = fgBasePackageVersion();
+    if ( !(base_version == "0.7.9") ) {
+	SG_LOG( SG_GENERAL, SG_ALERT, "Base package check failed ... "
+		<< "Found version " << base_version );
+        SG_LOG( SG_GENERAL, SG_ALERT, "Please upgrade to version 0.7.9" );
+	exit(-1);
+    }
+
     // Initialize the Aircraft directory to "" (UIUC)
     aircraft_dir = "";
 
@@ -1436,7 +1518,10 @@ int main( int argc, char **argv ) {
  		"GLUT event handler initialization failed ..." );
  	exit(-1);
     }
- 
+
+    // Initialize plib net interface
+    netInit( &argc, argv );
+
     // Initialize ssg (from plib).  Needs to come before we do any
     // other ssg stuff, but after opengl/glut has been initialized.
     ssgInit();
@@ -1446,19 +1531,33 @@ int main( int argc, char **argv ) {
     // fonts !!!
     guiInit();
 
+#ifdef GL_EXT_texture_lod_bias
+    glTexEnvf( GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, -0.5 ) ;
+#endif
+
+#if 0
+#ifdef GL_EXT_texture_filter_anisotropic
+    float max_anisotropy;
+    glGetFloatv( GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &max_anisotropy );
+    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT,
+                     max_anisotropy );
+    cout << "Max anisotropy = " << max_anisotropy << endl;
+#endif
+#endif
+
     // set current_options lon/lat if an airport id is specified
     // cout << "3. airport_id = " << fgGetString("/sim/startup/airport-id") << endl;
     if ( fgGetString("/sim/startup/airport-id").length() ) {
 	// fgSetPosFromAirportID( fgGetString("/sim/startup/airport-id") );
 	fgSetPosFromAirportIDandHdg( fgGetString("/sim/startup/airport-id"),
-				     fgGetDouble("/orientation/heading") );
+				     fgGetDouble("/orientation/heading-deg") );
     }
 
     // Initialize time
     SGPath zone( globals->get_fg_root() );
     zone.append( "Timezone" );
-    SGTime *t = new SGTime( fgGetDouble("/position/longitude") * SGD_DEGREES_TO_RADIANS,
-			    fgGetDouble("/position/latitude") * SGD_DEGREES_TO_RADIANS,
+    SGTime *t = new SGTime( fgGetDouble("/position/longitude-deg") * SGD_DEGREES_TO_RADIANS,
+			    fgGetDouble("/position/latitude-deg") * SGD_DEGREES_TO_RADIANS,
 			    zone.str() );
 
     // Handle potential user specified time offsets
@@ -1525,10 +1624,11 @@ int main( int argc, char **argv ) {
 		   0.0 );
     globals->set_ephem( ephem );
 
+    thesky = new SGSky;
+
     SGPath sky_tex_path( globals->get_fg_root() );
     sky_tex_path.append( "Textures" );
     sky_tex_path.append( "Sky" );
-    thesky = new SGSky;
     thesky->texture_path( sky_tex_path.str() );
 
     thesky->build( 550.0, 550.0,
@@ -1538,14 +1638,14 @@ int main( int argc, char **argv ) {
 		   globals->get_ephem()->getStars(), 60000.0 );
 
     if ( fgGetBool("/environment/clouds/status") ) {
+	// thesky->add_cloud_layer( 2000.0, 200.0, 50.0, 40000.0,
+        //                          SG_CLOUD_OVERCAST );
 	thesky->add_cloud_layer( 2600.0, 200.0, 50.0, 40000.0,
-				 SG_CLOUD_MOSTLY_SUNNY );
+				 SG_CLOUD_MOSTLY_CLOUDY );
+	// thesky->add_cloud_layer( 3000.0, 200.0, 50.0, 40000.0,
+	//                          SG_CLOUD_MOSTLY_SUNNY );
 	thesky->add_cloud_layer( 6000.0, 20.0, 10.0, 40000.0,
 				 SG_CLOUD_CIRRUS );
-	// thesky->add_cloud_layer( 1000.0, 200.0, 50.0,
-	//                          SG_CLOUD_MOSTLY_SUNNY );
-	// thesky->add_cloud_layer( 1800.0, 400.0, 100.0, SG_CLOUD_OVERCAST );
-	// thesky->add_cloud_layer( 5000.0, 20.0, 10.0, SG_CLOUD_CIRRUS );
     }
 
     // Initialize MagVar model
@@ -1577,10 +1677,22 @@ int main( int argc, char **argv ) {
 	fgGetString("/sim/model/path", "Models/Geometry/glider.ac");
     SGPath full_model = globals->get_fg_root();
     full_model.append(acmodel_path);
-    // this should be redundant...
-    ssgModelPath( (char *)full_model.dir().c_str() );
+
+#if !defined( PLIB_1_2_X )
+    // this should be redundant ... but it breaks for relative paths
+    // ssgModelPath( (char *)full_model.dir().c_str() );
+#endif
+
     ssgTexturePath( (char *)full_model.dir().c_str() );
     ssgEntity *acmodel_obj = ssgLoad( (char *)full_model.c_str() );
+    if( !acmodel_obj ) {
+        // fall back to default
+        acmodel_obj = ssgLoad( (char *)"Models/Geometry/glider.ac" );
+        if( !acmodel_obj ) {
+            SG_LOG( SG_GENERAL, SG_ALERT, "FAILED to LOAD an AC model! ..." );
+            exit(-1);
+        }
+    }
 
     // find moving parts (if this is an MDL model)
     flaps_selector = (ssgSelector*)fgFindNode( acmodel_obj, "FLAPS" );
@@ -1611,12 +1723,12 @@ int main( int argc, char **argv ) {
     sgMat4 rot_matrix;
     sgMat4 off_matrix;
     sgMat4 res_matrix;
-    float h_rot = fgGetFloat("/sim/model/h-rotation", 0.0);
-    float p_rot = fgGetFloat("/sim/model/p-rotation", 0.0);
-    float r_rot = fgGetFloat("/sim/model/r-rotation", 0.0);
-    float x_off = fgGetFloat("/sim/model/x-offset", 0.0);
-    float y_off = fgGetFloat("/sim/model/y-offset", 0.0);
-    float z_off = fgGetFloat("/sim/model/z-offset", 0.0);
+    float h_rot = fgGetFloat("/sim/model/heading-offset-deg", 0.0);
+    float p_rot = fgGetFloat("/sim/model/roll-offset-deg", 0.0);
+    float r_rot = fgGetFloat("/sim/model/pitch-offset-deg", 0.0);
+    float x_off = fgGetFloat("/sim/model/x-offset-m", 0.0);
+    float y_off = fgGetFloat("/sim/model/y-offset-m", 0.0);
+    float z_off = fgGetFloat("/sim/model/z-offset-m", 0.0);
     sgMakeRotMat4(rot_matrix, h_rot, p_rot, r_rot);
     sgMakeTransMat4(off_matrix, x_off, y_off, z_off);
     sgMultMat4(res_matrix, off_matrix, rot_matrix);
@@ -1655,6 +1767,21 @@ int main( int argc, char **argv ) {
 // $$$ end - added VS Renganathan, 15 Oct 2K
 //         - added Venky         , 12 Nov 2K
 
+// Main entry point; catch any exceptions that have made it this far.
+int main ( int argc, char **argv ) {
+				// FIXME: add other, more specific
+				// exceptions.
+  try {
+    mainLoop(argc, argv);
+  } catch (sg_throwable &t) {
+    SG_LOG(SG_GENERAL, SG_ALERT,
+	   "Fatal error: " << t.getFormattedMessage()
+	   << "\n (received from " << t.getOrigin() << ')');
+    exit(1);
+  }
+}
+
+
 void fgLoadDCS(void) {
 
     ssgEntity *ship_obj = NULL;
@@ -1727,7 +1854,7 @@ void fgLoadDCS(void) {
         SG_LOG ( SG_TERRAIN, SG_ALERT, "Finished object processing." );
 
         ship_sel->clrTraversalMaskBits( SSGTRAV_HOT );
-        scene->addKid( ship_sel ); //add selector node to root node
+        scene->addKid( ship_sel ); //add selector node to root node 
     }
 
     return;