Thursday's tweaks.

Cockpit/hud.c

@@ -151,6 +151,15 @@ double get_altitude( void )
 	return( FG_Altitude * FEET_TO_METER /* -rough_elev */ );
 }
 
+double get_sideslip( void )
+{
+        fgFLIGHT *f;
+        
+        f = current_aircraft.flight;
+        
+        return( FG_Beta );
+}
+
 //
 // The following code deals with painting the "instrument" on the display
 //
@@ -624,21 +633,53 @@ static void drawhorizon( HUD_horizon *horizon )
 {
   int x_inc1, y_inc1;
   int x_inc2, y_inc2;
+  int x_t_inc1, y_t_inc1;
+  
+  int d_bottom_x, d_bottom_y;
+  int d_right_x, d_right_y;
+  int d_top_x, d_top_y;
+  int d_left_x, d_left_y;
+  
 //	struct fgFLIGHT *f = &current_aircraft.flight;
   double sin_bank, cos_bank;
-  double bank_angle;
+  double bank_angle, sideslip_angle;
+  double sin_sideslip, cos_sideslip;
+  double ss_const; // sideslip angle pixels per rad
 
-  bank_angle = (*horizon->load_value)();
+  bank_angle = (*horizon->load_roll)();
+  sideslip_angle = (*horizon->load_sideslip)();
 
 	// sin_bank = sin( FG_2PI-FG_Phi );
 	// cos_bank = cos( FG_2PI-FG_Phi );
   sin_bank = sin(FG_2PI-bank_angle);
   cos_bank = cos(FG_2PI-bank_angle);
+  sin_sideslip = sin(sideslip_angle);
+  cos_sideslip = cos(sideslip_angle);
+  
   x_inc1 = (int)(horizon->scr_width * cos_bank);
   y_inc1 = (int)(horizon->scr_width * sin_bank);
   x_inc2 = (int)(horizon->scr_hole  * cos_bank);
   y_inc2 = (int)(horizon->scr_hole  * sin_bank);
+  
+  x_t_inc1 = (int)(horizon->tee_height * sin_bank);
+  y_t_inc1 = (int)(horizon->tee_height * cos_bank);
+  
+  d_bottom_x = horizon->x_pos;
+  d_bottom_y = horizon->y_pos-horizon->scr_hole;
+  d_right_x  = horizon->x_pos+horizon->scr_hole;
+  d_right_y  = horizon->y_pos;
+  d_top_x    = horizon->x_pos;
+  d_top_y    = horizon->y_pos+horizon->scr_hole;
+  d_left_x   = horizon->x_pos-horizon->scr_hole;
+  d_left_y   = horizon->y_pos;
+  
+  ss_const = (FG_PI_2/2)/(2*horizon->scr_width-2*horizon->scr_hole);
 
+  d_bottom_x += sideslip_angle*ss_const; // horizon->scr_width-horizon->scr_hole;
+  d_right_x  += sideslip_angle*ss_const; // horizon->scr_width-horizon->scr_hole;
+  d_left_x   += sideslip_angle*ss_const; // horizon->scr_width-horizon->scr_hole;
+  d_top_x    += sideslip_angle*ss_const; // horizon->scr_width-horizon->scr_hole;
+   
   if( horizon->scr_hole == 0 )
     {
     drawOneLine( horizon->x_pos - x_inc1, horizon->y_pos - y_inc1, \
@@ -651,6 +692,18 @@ static void drawhorizon( HUD_horizon *horizon )
     drawOneLine( horizon->x_pos + x_inc2, horizon->y_pos + y_inc2, \
                  horizon->x_pos + x_inc1, horizon->y_pos + y_inc1 );
     }
+    
+  // draw teemarks (?) 
+  drawOneLine( horizon->x_pos + x_inc2, horizon->y_pos + y_inc2, \
+               horizon->x_pos + x_inc2 + x_t_inc1, horizon->y_pos + y_inc2 - y_t_inc1 );
+  drawOneLine( horizon->x_pos - x_inc2, horizon->y_pos - y_inc2, \
+               horizon->x_pos - x_inc2 + x_t_inc1, horizon->y_pos - y_inc2 - y_t_inc1 );
+               
+  // draw sideslip diamond (it is not yet positioned correctly )
+  drawOneLine( d_bottom_x, d_bottom_y, d_right_x, d_right_y )
+  drawOneLine( d_right_x, d_right_y, d_top_x, d_top_y );
+  drawOneLine( d_top_x, d_top_y, d_left_x, d_left_y );
+  drawOneLine( d_left_x, d_left_y, d_bottom_x, d_bottom_y );
 }
 
 //  drawControlSurfaces()
@@ -861,7 +914,7 @@ Hptr fgHUDInit( fgAIRCRAFT *current_aircraft )
   fgHUDSetBrightness( hud, BRT_LIGHT ); 
 
   // Small, original HUD configuration
-  // fgHUDAddHorizon( hud, 590, 50, 40, 20, get_roll );
+  // fgHUDAddHorizon( hud, 590, 50, 40, 5, 10, get_roll, get_sideslip );
   // fgHUDAddLadder ( hud, 330, 190, 90, 180, 70, 10,
   //                  NONE, 45, get_roll, get_pitch );
   // fgHUDAddScale  ( hud, VERTICAL,     LIMIT, 220, 100, 280, 5, 10,
@@ -877,7 +930,7 @@ Hptr fgHUDInit( fgAIRCRAFT *current_aircraft )
   // fgHUDAddControlSurfaces( hud, 10, 10, NULL );
   
   // Bigger and placed a bit higher HUD configuration
-  fgHUDAddHorizon( hud, 590, 50, 40, 20, get_roll );
+  fgHUDAddHorizon( hud, 590, 50, 40, 5, 10, get_roll, get_sideslip );
   fgHUDAddLadder ( hud, 330, 270, 120, 180, 70, 10,
                    NONE, 45, get_roll, get_pitch );
   fgHUDAddScale  ( hud, VERTICAL,     LIMIT, 200, 180, 380, 5, 10,
@@ -920,12 +973,14 @@ void add_instrument( Hptr hud, HIptr pinstrument )
 // Constructs a HUD_horizon "object" and installs it into the hud instrument
 // list.
 
-Hptr fgHUDAddHorizon( Hptr hud,     \
+Hptr fgHUDAddHorizon( Hptr hud,      \
-                      int x_pos,    \
+                      int x_pos,     \
-                      int y_pos,    \
+                      int y_pos,     \
-                      int length,   \
+                      int length,    \
-                      int hole_len, \
+                      int hole_len,  \
-                      double (*load_value)() )
+                      int tee_height,\
+                      double (*load_roll)(),\
+                      double (*load_sideslip)() )
 {
     HUD_horizon *phorizon;
     HUD_instr   *pinstrument;
@@ -946,13 +1001,15 @@ Hptr fgHUDAddHorizon( Hptr hud,     \
 	return( NULL );
     }
 
-    phorizon->x_pos      = x_pos;
+    phorizon->x_pos         = x_pos;
-    phorizon->y_pos      = y_pos;
+    phorizon->y_pos         = y_pos;
-    phorizon->scr_width  = length;
+    phorizon->scr_width     = length;
-    phorizon->scr_hole   = hole_len;
+    phorizon->scr_hole      = hole_len;
-    phorizon->load_value = load_value;
+    phorizon->tee_height    = tee_height;
+    phorizon->load_roll     = load_roll;
+    phorizon->load_sideslip = load_sideslip;
     //  Install the horizon in the parent.
-    pinstrument->instr   = phorizon;
+    pinstrument->instr      = phorizon;
     //  Install the instrument into hud.
     add_instrument( hud, pinstrument);
 
@@ -1360,11 +1417,14 @@ void fgHUDSetBrightness( Hptr hud, int brightness )
 }
 
 /* $Log$
-/* Revision 1.16  1998/02/19 13:05:49  curt
+/* Revision 1.17  1998/02/20 00:16:21  curt
-/* Incorporated some HUD tweaks from Michelle America.
+/* Thursday's tweaks.
-/* Tweaked the sky's sunset/rise colors.
-/* Other misc. tweaks.
 /*
+ * Revision 1.16  1998/02/19 13:05:49  curt
+ * Incorporated some HUD tweaks from Michelle America.
+ * Tweaked the sky's sunset/rise colors.
+ * Other misc. tweaks.
+ *
  * Revision 1.15  1998/02/16 13:38:39  curt
  * Integrated changes from Charlie Hotchkiss.
  *

Cockpit/hud.h

@@ -187,7 +187,9 @@ typedef struct{
 	int y_pos;
 	int scr_width;
 	int scr_hole;
-	double (*load_value)( void );
+	int tee_height;
+	double (*load_roll)( void );
+	double (*load_sideslip)( void );
 } HUD_horizon, *pHUDhorizon;
 
 typedef struct {
@@ -264,7 +266,9 @@ Hptr fgHUDAddHorizon( Hptr hud,
                       int y_pos,
                       int length,
                       int hole_len,
-                      double (*load_value)( void ) );
+                      int tee_height,
+                      double (*load_roll)( void ),
+                      double (*load_sideslip)( void ) );
 
 Hptr fgHUDAddScale  ( Hptr hud,                    \
                       int type,                    \
@@ -353,11 +357,14 @@ void fgUpdateHUD2( Hptr hud ); // Future use?
 #endif // _HUD_H  
 
 /* $Log$
-/* Revision 1.12  1998/02/19 13:05:52  curt
+/* Revision 1.13  1998/02/20 00:16:22  curt
-/* Incorporated some HUD tweaks from Michelle America.
+/* Thursday's tweaks.
-/* Tweaked the sky's sunset/rise colors.
-/* Other misc. tweaks.
 /*
+ * Revision 1.12  1998/02/19 13:05:52  curt
+ * Incorporated some HUD tweaks from Michelle America.
+ * Tweaked the sky's sunset/rise colors.
+ * Other misc. tweaks.
+ *
  * Revision 1.11  1998/02/16 13:38:42  curt
  * Integrated changes from Charlie Hotchkiss.
  *

Main/GLUTmain.c

@@ -253,7 +253,7 @@ static void fgUpdateViewParams( void ) {
 	/* Tell GL we are about to modify the projection parameters */    
 	xglMatrixMode(GL_PROJECTION);
 	xglLoadIdentity();
-	gluPerspective(55.0, 1.0/win_ratio, 1.0, 100000.0);
+	gluPerspective(55.0, 1.0/win_ratio, 10.0, 100000.0);
       }
 
     xglMatrixMode(GL_MODELVIEW);
@@ -793,9 +793,12 @@ extern "C" {
 #endif
 
 /* $Log$
-/* Revision 1.63  1998/02/16 16:17:39  curt
+/* Revision 1.64  1998/02/20 00:16:23  curt
-/* Minor tweaks.
+/* Thursday's tweaks.
 /*
+ * Revision 1.63  1998/02/16 16:17:39  curt
+ * Minor tweaks.
+ *
  * Revision 1.62  1998/02/16 13:39:42  curt
  * Miscellaneous weekend tweaks.  Fixed? a cache problem that caused whole
  * tiles to occasionally be missing.

Main/views.c

@@ -55,6 +55,10 @@ void fgViewUpdate(fgFLIGHT *f, struct fgVIEW *v, struct fgLIGHT *l) {
     MAT3mat R, TMP, UP, LOCAL, VIEW;
     double ntmp;
 
+    scenery.center.x = scenery.next_center.x;
+    scenery.center.y = scenery.next_center.y;
+    scenery.center.z = scenery.next_center.z;
+
     /* calculate the cartesion coords of the current lat/lon/0 elev */
     v->cur_zero_elev = fgPolarToCart(FG_Longitude, FG_Lat_geocentric, 
 				     FG_Sea_level_radius * FEET_TO_METER);
@@ -184,9 +188,12 @@ void fgViewUpdate(fgFLIGHT *f, struct fgVIEW *v, struct fgLIGHT *l) {
 
 
 /* $Log$
-/* Revision 1.14  1998/02/09 15:07:50  curt
+/* Revision 1.15  1998/02/20 00:16:24  curt
-/* Minor tweaks.
+/* Thursday's tweaks.
 /*
+ * Revision 1.14  1998/02/09 15:07:50  curt
+ * Minor tweaks.
+ *
  * Revision 1.13  1998/02/07 15:29:45  curt
  * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
  * <chotchkiss@namg.us.anritsu.com>

Scenery/scenery.h

@@ -39,6 +39,9 @@ struct fgSCENERY {
     /* center of current scenery chunk */
     struct fgCartesianPoint center;
 
+    /* next center of current scenery chunk */
+    struct fgCartesianPoint next_center;
+
     /* angle of sun relative to current local horizontal */
     double sun_angle;
 };
@@ -63,10 +66,13 @@ void fgSceneryRender( void );
 
 
 /* $Log$
-/* Revision 1.16  1998/01/27 00:48:03  curt
+/* Revision 1.17  1998/02/20 00:16:24  curt
-/* Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
+/* Thursday's tweaks.
-/* system and commandline/config file processing code.
 /*
+ * Revision 1.16  1998/01/27 00:48:03  curt
+ * Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
+ * system and commandline/config file processing code.
+ *
  * Revision 1.15  1998/01/22 02:59:41  curt
  * Changed #ifdef FILE_H to #ifdef _FILE_H
  *

Scenery/tilemgr.c

@@ -201,7 +201,7 @@ void fgTileMgrRender( void ) {
     /* Find current translation offset */
     fgBucketFind(FG_Longitude * RAD_TO_DEG, FG_Latitude * RAD_TO_DEG, &p);
     index = fgTileCacheExists(&p);
-    fgTileCacheEntryInfo(index, &display_list, &scenery.center );
+    fgTileCacheEntryInfo(index, &display_list, &scenery.next_center );
 
     printf("Current bucket = %d %d %d %d\n", p.lon, p.lat, p.x, p.y );
 
@@ -225,11 +225,14 @@ void fgTileMgrRender( void ) {
 
 
 /* $Log$
-/* Revision 1.18  1998/02/19 13:05:54  curt
+/* Revision 1.19  1998/02/20 00:16:25  curt
-/* Incorporated some HUD tweaks from Michelle America.
+/* Thursday's tweaks.
-/* Tweaked the sky's sunset/rise colors.
-/* Other misc. tweaks.
 /*
+ * Revision 1.18  1998/02/19 13:05:54  curt
+ * Incorporated some HUD tweaks from Michelle America.
+ * Tweaked the sky's sunset/rise colors.
+ * Other misc. tweaks.
+ *
  * Revision 1.17  1998/02/16 13:39:46  curt
  * Miscellaneous weekend tweaks.  Fixed? a cache problem that caused whole
  * tiles to occasionally be missing.

Simulator/Done

@@ -2,6 +2,12 @@
 | Done
 --------------------------------------------------------------------------
 
+2/19/98 -  Fixed a problem with smooth view (scenery center) switch
+           when entering a new tile.
+
+2/18/98 -  Fixed a problem with terrain generation that was causing
+           some strips to be put in the wrong winding list.
+
 2/9/98 -   Fixed a problem with terrain tiles not quite matching up perfectly.
 
 2/2/98 -   Fix warning when compiling with c++ ... also successfully built 

Simulator/Todo

@@ -2,10 +2,10 @@
 | Todo 
 --------------------------------------------------------------------------
 
-1/12/98  - Fix time problem on win32
-
 12/29/97 - View frustum culling
 
+1/12/98  - Fix time problem on win32
+
 1/5/98 -   Create a development "roadmap"
 
 12/30/97 - fix winding problem with tri-strips in obj.c (invert normals)