--- /dev/null
+/**************************************************************************
+ * GLmain.c -- top level sim routines
+ *
+ * Written by Curtis Olson for OpenGL, started May 1997.
+ *
+ * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id$
+ * (Log is kept at end of this file)
+ **************************************************************************/
+
+
+#include <stdio.h>
+
+#ifdef WIN32
+# include <windows.h>
+#endif
+
+#ifdef GLUT
+ #include <GL/glut.h>
+ #include "GLUTkey.h"
+#elif MESA_TK
+ /* assumes -I/usr/include/mesa in compile command */
+ #include "gltk.h"
+ #include "GLTKkey.h"
+#endif
+
+#include "../constants.h"
+
+#include "../Aircraft/aircraft.h"
+#include "../Scenery/mesh.h"
+#include "../Scenery/scenery.h"
+#include "../Math/fg_random.h"
+#include "../Math/mat3.h"
+#include "../Math/polar.h"
+#include "../Time/fg_timer.h"
+#include "../Weather/weather.h"
+
+
+/* This is a record containing all the info for the aircraft currently
+ being operated */
+struct aircraft_params current_aircraft;
+
+/* view parameters */
+static GLfloat win_ratio = 1.0;
+
+/* sun direction */
+static GLfloat sun_vec[4] = {0.2948, 0.7816, -0.5498, 0.0 };
+
+/* temporary hack */
+/* extern struct mesh *mesh_ptr; */
+/* Function prototypes */
+/* GLint fgSceneryCompile_OLD(); */
+/* static void fgSceneryDraw_OLD(); */
+
+/* pointer to scenery structure */
+/* static GLint scenery, runway; */
+
+/* Another hack */
+double fogDensity = 60000.0; /* in meters */
+double view_offset = 0.0;
+double goal_view_offset = 0.0;
+
+/* Another hack */
+#define DEFAULT_TIMER_HZ 20
+#define DEFAULT_MULTILOOP 6
+#define DEFAULT_MODEL_HZ (DEFAULT_TIMER_HZ * DEFAULT_MULTILOOP)
+
+double Simtime;
+
+/* Another hack */
+int use_signals = 0;
+
+
+/**************************************************************************
+ * fgInitVisuals() -- Initialize various GL/view parameters
+ **************************************************************************/
+
+static void fgInitVisuals() {
+ /* if the 4th field is 0.0, this specifies a direction ... */
+ static GLfloat fogColor[4] = {0.65, 0.65, 0.85, 1.0};
+
+ glEnable( GL_DEPTH_TEST );
+ /* glFrontFace(GL_CW); */
+ glEnable( GL_CULL_FACE );
+
+ /* If enabled, normal vectors specified with glNormal are scaled
+ to unit length after transformation. See glNormal. */
+ glEnable( GL_NORMALIZE );
+
+ glLightfv( GL_LIGHT0, GL_POSITION, sun_vec );
+ glEnable( GL_LIGHTING );
+ glEnable( GL_LIGHT0 );
+
+ glShadeModel( GL_FLAT ); /* glShadeModel( GL_SMOOTH ); */
+
+ glEnable( GL_FOG );
+ glFogi (GL_FOG_MODE, GL_LINEAR);
+ /* glFogf (GL_FOG_START, 1.0); */
+ glFogf (GL_FOG_END, fogDensity);
+ glFogfv (GL_FOG_COLOR, fogColor);
+ /* glFogf (GL_FOG_DENSITY, fogDensity); */
+ /* glHint (GL_FOG_HINT, GL_FASTEST); */
+
+ glClearColor(0.6, 0.6, 0.9, 1.0);
+}
+
+
+/**************************************************************************
+ * Update the view volume, position, and orientation
+ **************************************************************************/
+
+static void fgUpdateViewParams() {
+ struct fgCartesianPoint view_pos /*, alt_up */;
+ struct flight_params *f;
+ MAT3mat R, TMP, UP, LOCAL, VIEW;
+ MAT3vec vec, view_up, forward, view_forward, local_up;
+
+ f = ¤t_aircraft.flight;
+
+ /* Tell GL we are about to modify the projection parameters */
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ gluPerspective(45.0, 1.0/win_ratio, 1.0, 200000.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ /* calculate view position in current FG view coordinate system */
+ view_pos = fgPolarToCart(FG_Longitude, FG_Lat_geocentric,
+ FG_Radius_to_vehicle * FEET_TO_METER + 1.0);
+ printf("View pos = %.4f, %.4f, %.4f\n", view_pos.x, view_pos.y, view_pos.z);
+
+ /* Derive the LOCAL aircraft rotation matrix (roll, pitch, yaw) */
+ MAT3_SET_VEC(vec, 0.0, 0.0, 1.0);
+ MAT3rotate(R, vec, FG_Phi);
+ /* printf("Roll matrix\n"); */
+ /* MAT3print(R, stdout); */
+
+ MAT3_SET_VEC(vec, 0.0, 1.0, 0.0);
+ /* MAT3mult_vec(vec, vec, R); */
+ MAT3rotate(TMP, vec, FG_Theta);
+ /* printf("Pitch matrix\n"); */
+ /* MAT3print(TMP, stdout); */
+ MAT3mult(R, R, TMP);
+
+ MAT3_SET_VEC(vec, 1.0, 0.0, 0.0);
+ /* MAT3mult_vec(vec, vec, R); */
+ /* MAT3rotate(TMP, vec, FG_Psi - FG_PI_2); */
+ MAT3rotate(TMP, vec, -FG_Psi);
+ /* printf("Yaw matrix\n");
+ MAT3print(TMP, stdout); */
+ MAT3mult(LOCAL, R, TMP);
+ /* printf("LOCAL matrix\n"); */
+ /* MAT3print(LOCAL, stdout); */
+
+ /* Derive the local UP transformation matrix based on *geodetic*
+ * coordinates */
+ MAT3_SET_VEC(vec, 0.0, 0.0, 1.0);
+ MAT3rotate(R, vec, FG_Longitude); /* R = rotate about Z axis */
+ /* printf("Longitude matrix\n"); */
+ /* MAT3print(R, stdout); */
+
+ MAT3_SET_VEC(vec, 0.0, 1.0, 0.0);
+ MAT3mult_vec(vec, vec, R);
+ MAT3rotate(TMP, vec, -FG_Latitude); /* TMP = rotate about X axis */
+ /* printf("Latitude matrix\n"); */
+ /* MAT3print(TMP, stdout); */
+
+ MAT3mult(UP, R, TMP);
+ /* printf("Local up matrix\n"); */
+ /* MAT3print(UP, stdout); */
+
+ MAT3_SET_VEC(local_up, 1.0, 0.0, 0.0);
+ MAT3mult_vec(local_up, local_up, UP);
+
+ printf(" Local Up = (%.4f, %.4f, %.4f)\n", local_up[0], local_up[1],
+ local_up[2]);
+
+ /* Alternative method to Derive local up vector based on
+ * *geodetic* coordinates */
+ /* alt_up = fgPolarToCart(FG_Longitude, FG_Latitude, 1.0); */
+ /* printf(" Alt Up = (%.4f, %.4f, %.4f)\n",
+ alt_up.x, alt_up.y, alt_up.z); */
+
+ /* Derive the VIEW matrix */
+ MAT3mult(VIEW, LOCAL, UP);
+ /* printf("VIEW matrix\n"); */
+ /* MAT3print(VIEW, stdout); */
+
+ /* generate the current up, forward, and fwrd-view vectors */
+ MAT3_SET_VEC(vec, 1.0, 0.0, 0.0);
+ MAT3mult_vec(view_up, vec, VIEW);
+
+ MAT3_SET_VEC(vec, 0.0, 0.0, 1.0);
+ MAT3mult_vec(forward, vec, VIEW);
+ printf("Forward vector is (%.2f,%.2f,%.2f)\n", forward[0], forward[1],
+ forward[2]);
+
+ MAT3rotate(TMP, view_up, view_offset);
+ MAT3mult_vec(view_forward, forward, TMP);
+
+ gluLookAt(view_pos.x, view_pos.y, view_pos.z,
+ view_pos.x + view_forward[0], view_pos.y + view_forward[1],
+ view_pos.z + view_forward[2],
+ view_up[0], view_up[1], view_up[2]);
+
+ glLightfv( GL_LIGHT0, GL_POSITION, sun_vec );
+}
+
+
+/**************************************************************************
+ * Update all Visuals (redraws anything graphics related)
+ **************************************************************************/
+
+static void fgUpdateVisuals( void ) {
+ /* update view volume parameters */
+ fgUpdateViewParams();
+
+ glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+ /* Tell GL we are switching to model view parameters */
+ glMatrixMode(GL_MODELVIEW);
+ /* glLoadIdentity(); */
+
+ /* draw scenery */
+ fgSceneryRender();
+
+ #ifdef GLUT
+ glutSwapBuffers();
+ #elif MESA_TK
+ tkSwapBuffers();
+ #endif
+}
+
+
+/**************************************************************************
+ * Update internal time dependent calculations (i.e. flight model)
+ **************************************************************************/
+
+void fgUpdateTimeDepCalcs(int multi_loop) {
+ struct flight_params *f;
+ int i;
+
+ f = ¤t_aircraft.flight;
+
+ /* update the flight model */
+ if ( multi_loop < 0 ) {
+ multi_loop = DEFAULT_MULTILOOP;
+ }
+
+ /* printf("updating flight model x %d\n", multi_loop); */
+ fgFlightModelUpdate(FG_LARCSIM, f, multi_loop);
+
+ for ( i = 0; i < multi_loop; i++ ) {
+ if ( fabs(goal_view_offset - view_offset) < 0.05 ) {
+ view_offset = goal_view_offset;
+ break;
+ } else {
+ /* move view_offset towards goal_view_offset */
+ if ( goal_view_offset > view_offset ) {
+ if ( goal_view_offset - view_offset < FG_PI ) {
+ view_offset += 0.01;
+ } else {
+ view_offset -= 0.01;
+ }
+ } else {
+ if ( view_offset - goal_view_offset < FG_PI ) {
+ view_offset -= 0.01;
+ } else {
+ view_offset += 0.01;
+ }
+ }
+ if ( view_offset > FG_2PI ) {
+ view_offset -= FG_2PI;
+ } else if ( view_offset < 0 ) {
+ view_offset += FG_2PI;
+ }
+ }
+ }
+}
+
+
+void fgInitTimeDepCalcs() {
+ /* initialize timer */
+
+#ifdef USE_ITIMER
+ fgTimerInit( 1.0 / DEFAULT_TIMER_HZ, fgUpdateTimeDepCalcs );
+#endif USE_ITIMER
+
+}
+
+
+/**************************************************************************
+ * Scenery management routines
+ **************************************************************************/
+
+/* static void fgSceneryInit_OLD() { */
+ /* make scenery */
+/* scenery = fgSceneryCompile_OLD();
+ runway = fgRunwayHack_OLD(0.69, 53.07);
+} */
+
+
+/* create the scenery */
+/* GLint fgSceneryCompile_OLD() {
+ GLint scenery;
+
+ scenery = mesh2GL(mesh_ptr_OLD);
+
+ return(scenery);
+}
+*/
+
+/* hack in a runway */
+/* GLint fgRunwayHack_OLD(double width, double length) {
+ static GLfloat concrete[4] = { 0.5, 0.5, 0.5, 1.0 };
+ static GLfloat line[4] = { 0.9, 0.9, 0.9, 1.0 };
+ int i;
+ int num_lines = 16;
+ float line_len, line_width_2, cur_pos;
+
+ runway = glGenLists(1);
+ glNewList(runway, GL_COMPILE);
+ */
+ /* draw concrete */
+/* glBegin(GL_POLYGON);
+ glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, concrete );
+ glNormal3f(0.0, 0.0, 1.0);
+
+ glVertex3d( 0.0, -width/2.0, 0.0);
+ glVertex3d( 0.0, width/2.0, 0.0);
+ glVertex3d(length, width/2.0, 0.0);
+ glVertex3d(length, -width/2.0, 0.0);
+ glEnd();
+ */
+ /* draw center line */
+/* glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, line );
+ line_len = length / ( 2 * num_lines + 1);
+ printf("line_len = %.3f\n", line_len);
+ line_width_2 = 0.02;
+ cur_pos = line_len;
+ for ( i = 0; i < num_lines; i++ ) {
+ glBegin(GL_POLYGON);
+ glVertex3d( cur_pos, -line_width_2, 0.005);
+ glVertex3d( cur_pos, line_width_2, 0.005);
+ cur_pos += line_len;
+ glVertex3d( cur_pos, line_width_2, 0.005);
+ glVertex3d( cur_pos, -line_width_2, 0.005);
+ cur_pos += line_len;
+ glEnd();
+ }
+
+ glEndList();
+
+ return(runway);
+}
+*/
+
+/* draw the scenery */
+/*static void fgSceneryDraw_OLD() {
+ static float z = 32.35;
+
+ glPushMatrix();
+
+ glCallList(scenery);
+
+ printf("*** Drawing runway at %.2f\n", z);
+
+ glTranslatef( -398391.28, 120070.41, 32.35);
+ glRotatef(170.0, 0.0, 0.0, 1.0);
+ glCallList(runway);
+
+ glPopMatrix();
+}
+*/
+
+/* What should we do when we have nothing else to do? How about get
+ * ready for the next move and update the display? */
+static void fgMainLoop( void ) {
+ static int remainder = 0;
+ int elapsed, multi_loop;
+ double rough_elev;
+ struct flight_params *f;
+
+ f = ¤t_aircraft.flight;
+
+ elapsed = fgGetTimeInterval();
+ printf("Time interval is = %d, previous remainder is = %d\n", elapsed,
+ remainder);
+ printf("--> Frame rate is = %.2f\n", 1000.0 / (float)elapsed);
+ elapsed += remainder;
+
+ multi_loop = ((float)elapsed * 0.001) * DEFAULT_MODEL_HZ;
+ remainder = elapsed - ((multi_loop*1000) / DEFAULT_MODEL_HZ);
+ printf("Model iterations needed = %d, new remainder = %d\n", multi_loop,
+ remainder);
+
+ aircraft_debug(1);
+ fgUpdateVisuals();
+
+ if ( ! use_signals ) {
+ fgUpdateTimeDepCalcs(multi_loop);
+ }
+
+ /* I'm just sticking this here for now, it should probably move
+ * eventually */
+ rough_elev = mesh_altitude(FG_Longitude * RAD_TO_ARCSEC,
+ FG_Latitude * RAD_TO_ARCSEC);
+ printf("Ground elevation is %.2f meters here.\n", rough_elev);
+ /* FG_Runway_altitude = rough_elev * METER_TO_FEET; */
+
+ if ( FG_Altitude * FEET_TO_METER < rough_elev + 3.758099) {
+ /* set this here, otherwise if we set runway height above our
+ current height we get a really nasty bounce. */
+ FG_Runway_altitude = FG_Altitude - 3.758099;
+
+ /* now set aircraft altitude above ground */
+ FG_Altitude = rough_elev * METER_TO_FEET + 3.758099;
+ printf("<*> resetting altitude to %.0f meters\n",
+ FG_Altitude * FEET_TO_METER);
+ }
+
+ /* update the weather for our current position */
+ fgWeatherUpdate(FG_Longitude * RAD_TO_ARCSEC,
+ FG_Latitude * RAD_TO_ARCSEC,
+ FG_Altitude * FEET_TO_METER);
+}
+
+
+/**************************************************************************
+ * Handle new window size or exposure
+ **************************************************************************/
+
+static void fgReshape( int width, int height ) {
+ /* Do this so we can call fgReshape(0,0) ourselves without having to know
+ * what the values of width & height are. */
+ if ( (height > 0) && (width > 0) ) {
+ win_ratio = (GLfloat) height / (GLfloat) width;
+ }
+
+ /* Inform gl of our view window size */
+ glViewport(0, 0, (GLint)width, (GLint)height);
+
+ fgUpdateViewParams();
+
+ glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+}
+
+
+/**************************************************************************
+ * Main ...
+ **************************************************************************/
+
+int main( int argc, char *argv[] ) {
+ struct flight_params *f;
+ double rough_elev;
+
+ f = ¤t_aircraft.flight;
+
+ printf("Flight Gear: prototype code to test OpenGL, LaRCsim, and VRML\n\n");
+
+
+ /**********************************************************************
+ * Initialize the Window/Graphics environment.
+ **********************************************************************/
+
+ #ifdef GLUT
+ /* initialize GLUT */
+ glutInit(&argc, argv);
+
+ /* Define Display Parameters */
+ glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
+
+ /* Define initial window size */
+ glutInitWindowSize(640, 480);
+
+ /* Initialize windows */
+ glutCreateWindow("Flight Gear");
+
+ #elif MESA_TK
+ /* Define initial window size */
+ tkInitPosition(0, 0, 640, 480);
+
+ /* Define Display Parameters */
+ tkInitDisplayMode( TK_RGB | TK_DEPTH | TK_DOUBLE | TK_DIRECT );
+
+ /* Initialize the main window */
+ if (tkInitWindow("Flight Gear") == GL_FALSE) {
+ tkQuit();
+ }
+ #endif
+
+ /* seed the random number generater */
+ fg_srandom();
+
+ /* setup view parameters, only makes GL calls */
+ fgInitVisuals();
+
+
+ /****************************************************************
+ * The following section sets up the flight model EOM parameters and
+ * should really be read in from one or more files.
+ ****************************************************************/
+
+ /* Globe Aiport, AZ */
+ FG_Runway_altitude = 3234.5;
+ FG_Runway_latitude = 120070.41;
+ FG_Runway_longitude = -398391.28;
+ FG_Runway_heading = 102.0 * DEG_TO_RAD;
+
+ /* Initial Position */
+ FG_Latitude = ( 120070.41 / 3600.0 ) * DEG_TO_RAD;
+ FG_Longitude = ( -398391.28 / 3600.0 ) * DEG_TO_RAD;
+ FG_Altitude = FG_Runway_altitude + 3.758099;
+
+ /* FG_Latitude = 0.0; */
+ /* FG_Longitude = 0.0; */
+ /* FG_Altitude = 15000.0; */
+
+ printf("Initial position is: (%.4f, %.4f, %.2f)\n", FG_Latitude,
+ FG_Longitude, FG_Altitude);
+
+ /* Initial Velocity */
+ FG_V_north = 0.0 /* 7.287719E+00 */;
+ FG_V_east = 0.0 /* 1.521770E+03 */;
+ FG_V_down = 0.0 /* -1.265722E-05 */;
+
+ /* Initial Orientation */
+ FG_Phi = -2.658474E-06;
+ FG_Theta = 7.401790E-03;
+ /* FG_Psi = 270.0 * DEG_TO_RAD; */
+ FG_Psi = 0.0 * DEG_TO_RAD;
+
+ /* Initial Angular B rates */
+ FG_P_body = 7.206685E-05;
+ FG_Q_body = 0.000000E+00;
+ FG_R_body = 9.492658E-05;
+
+ FG_Earth_position_angle = 0.000000E+00;
+
+ /* Mass properties and geometry values */
+ FG_Mass = 8.547270E+01;
+ FG_I_xx = 1.048000E+03;
+ FG_I_yy = 3.000000E+03;
+ FG_I_zz = 3.530000E+03;
+ FG_I_xz = 0.000000E+00;
+
+ /* CG position w.r.t. ref. point */
+ FG_Dx_cg = 0.000000E+00;
+ FG_Dy_cg = 0.000000E+00;
+ FG_Dz_cg = 0.000000E+00;
+
+ /* Set initial position and slew parameters */
+ /* fgSlewInit(-398391.3, 120070.41, 244, 3.1415); */ /* GLOBE Airport */
+ /* fgSlewInit(-335340,162540, 15, 4.38); */
+ /* fgSlewInit(-398673.28,120625.64, 53, 4.38); */
+
+ /* Initialize the Scenery Management system */
+ fgSceneryInit();
+
+ /* Tell the Scenery Management system where we are so it can load
+ * the correct scenery data */
+ fgSceneryUpdate(FG_Latitude, FG_Longitude, FG_Altitude);
+
+ /* I'm just sticking this here for now, it should probably move
+ * eventually */
+ rough_elev = mesh_altitude(FG_Longitude * RAD_TO_DEG * 3600.0,
+ FG_Latitude * RAD_TO_DEG * 3600.0);
+ printf("Ground elevation is %.2f meters here.\n", rough_elev);
+ if ( rough_elev > -9990.0 ) {
+ FG_Runway_altitude = rough_elev * METER_TO_FEET;
+ }
+
+ if ( FG_Altitude < FG_Runway_altitude ) {
+ FG_Altitude = FG_Runway_altitude + 3.758099;
+ }
+ /* end of thing that I just stuck in that I should probably move */
+
+ /* Initialize the flight model data structures base on above values */
+ fgFlightModelInit( FG_LARCSIM, f, 1.0 / DEFAULT_MODEL_HZ );
+
+ if ( use_signals ) {
+ /* init timer routines, signals, etc. Arrange for an alarm
+ signal to be generated, etc. */
+ fgInitTimeDepCalcs();
+ }
+
+ /* Initialize the weather modeling subsystem */
+ fgWeatherInit();
+
+ /**********************************************************************
+ * Initialize the Event Handlers.
+ **********************************************************************/
+
+ #ifdef GLUT
+ /* call fgReshape() on window resizes */
+ glutReshapeFunc( fgReshape );
+
+ /* call key() on keyboard event */
+ glutKeyboardFunc( GLUTkey );
+ glutSpecialFunc( GLUTspecialkey );
+
+ /* call fgMainLoop() whenever there is nothing else to do */
+ glutIdleFunc( fgMainLoop );
+
+ /* draw the scene */
+ glutDisplayFunc( fgUpdateVisuals );
+
+ /* pass control off to the GLUT event handler */
+ glutMainLoop();
+ #elif MESA_TK
+ /* call fgReshape() on expose events */
+ tkExposeFunc( fgReshape );
+
+ /* call fgReshape() on window resizes */
+ tkReshapeFunc( fgReshape );
+
+ /* call key() on keyboard event */
+ tkKeyDownFunc( GLTKkey );
+
+ /* call fgMainLoop() whenever there is nothing else to do */
+ tkIdleFunc( fgMainLoop );
+
+ /* draw the scene */
+ tkDisplayFunc( fgUpdateVisuals );
+
+ /* pass control off to the tk event handler */
+ tkExec();
+ #endif
+
+ return(0);
+}
+
+#ifdef NO_PRINTF
+
+#include <stdarg.h>
+int printf (const char *format, ...) {
+}
+
+#endif
+
+
+/* $Log$
+/* Revision 1.1 1997/08/02 18:45:00 curt
+/* Renamed GLmain.c GLUTmain.c
+/*
+ * Revision 1.43 1997/08/02 16:23:47 curt
+ * Misc. tweaks.
+ *
+ * Revision 1.42 1997/08/01 19:43:33 curt
+ * Making progress with coordinate system overhaul.
+ *
+ * Revision 1.41 1997/07/31 22:52:37 curt
+ * Working on redoing internal coordinate systems & scenery transformations.
+ *
+ * Revision 1.40 1997/07/30 16:12:42 curt
+ * Moved fg_random routines from Util/ to Math/
+ *
+ * Revision 1.39 1997/07/21 14:45:01 curt
+ * Minor tweaks.
+ *
+ * Revision 1.38 1997/07/19 23:04:47 curt
+ * Added an initial weather section.
+ *
+ * Revision 1.37 1997/07/19 22:34:02 curt
+ * Moved PI definitions to ../constants.h
+ * Moved random() stuff to ../Utils/ and renamed fg_random()
+ *
+ * Revision 1.36 1997/07/18 23:41:25 curt
+ * Tweaks for building with Cygnus Win32 compiler.
+ *
+ * Revision 1.35 1997/07/18 14:28:34 curt
+ * Hacked in some support for wind/turbulence.
+ *
+ * Revision 1.34 1997/07/16 20:04:48 curt
+ * Minor tweaks to aid Win32 port.
+ *
+ * Revision 1.33 1997/07/12 03:50:20 curt
+ * Added an #include <Windows32/Base.h> to help compiling for Win32
+ *
+ * Revision 1.32 1997/07/11 03:23:18 curt
+ * Solved some scenery display/orientation problems. Still have a positioning
+ * (or transformation?) problem.
+ *
+ * Revision 1.31 1997/07/11 01:29:58 curt
+ * More tweaking of terrian floor.
+ *
+ * Revision 1.30 1997/07/10 04:26:37 curt
+ * We now can interpolated ground elevation for any position in the grid. We
+ * can use this to enforce a "hard" ground. We still need to enforce some
+ * bounds checking so that we don't try to lookup data points outside the
+ * grid data set.
+ *
+ * Revision 1.29 1997/07/09 21:31:12 curt
+ * Working on making the ground "hard."
+ *
+ * Revision 1.28 1997/07/08 18:20:12 curt
+ * Working on establishing a hard ground.
+ *
+ * Revision 1.27 1997/07/07 20:59:49 curt
+ * Working on scenery transformations to enable us to fly fluidly over the
+ * poles with no discontinuity/distortion in scenery.
+ *
+ * Revision 1.26 1997/07/05 20:43:34 curt
+ * renamed mat3 directory to Math so we could add other math related routines.
+ *
+ * Revision 1.25 1997/06/29 21:19:17 curt
+ * Working on scenery management system.
+ *
+ * Revision 1.24 1997/06/26 22:14:53 curt
+ * Beginning work on a scenery management system.
+ *
+ * Revision 1.23 1997/06/26 19:08:33 curt
+ * Restructuring make, adding automatic "make dep" support.
+ *
+ * Revision 1.22 1997/06/25 15:39:47 curt
+ * Minor changes to compile with rsxnt/win32.
+ *
+ * Revision 1.21 1997/06/22 21:44:41 curt
+ * Working on intergrating the VRML (subset) parser.
+ *
+ * Revision 1.20 1997/06/21 17:12:53 curt
+ * Capitalized subdirectory names.
+ *
+ * Revision 1.19 1997/06/18 04:10:31 curt
+ * A couple more runway tweaks ...
+ *
+ * Revision 1.18 1997/06/18 02:21:24 curt
+ * Hacked in a runway
+ *
+ * Revision 1.17 1997/06/17 16:51:58 curt
+ * Timer interval stuff now uses gettimeofday() instead of ftime()
+ *
+ * Revision 1.16 1997/06/17 04:19:16 curt
+ * More timer related tweaks with respect to view direction changes.
+ *
+ * Revision 1.15 1997/06/17 03:41:10 curt
+ * Nonsignal based interval timing is now working.
+ * This would be a good time to look at cleaning up the code structure a bit.
+ *
+ * Revision 1.14 1997/06/16 19:32:51 curt
+ * Starting to add general timer support.
+ *
+ * Revision 1.13 1997/06/02 03:40:06 curt
+ * A tiny bit more view tweaking.
+ *
+ * Revision 1.12 1997/06/02 03:01:38 curt
+ * Working on views (side, front, back, transitions, etc.)
+ *
+ * Revision 1.11 1997/05/31 19:16:25 curt
+ * Elevator trim added.
+ *
+ * Revision 1.10 1997/05/31 04:13:52 curt
+ * WE CAN NOW FLY!!!
+ *
+ * Continuing work on the LaRCsim flight model integration.
+ * Added some MSFS-like keyboard input handling.
+ *
+ * Revision 1.9 1997/05/30 19:27:01 curt
+ * The LaRCsim flight model is starting to look like it is working.
+ *
+ * Revision 1.8 1997/05/30 03:54:10 curt
+ * Made a bit more progress towards integrating the LaRCsim flight model.
+ *
+ * Revision 1.7 1997/05/29 22:39:49 curt
+ * Working on incorporating the LaRCsim flight model.
+ *
+ * Revision 1.6 1997/05/29 12:31:39 curt
+ * Minor tweaks, moving towards general flight model integration.
+ *
+ * Revision 1.5 1997/05/29 02:33:23 curt
+ * Updated to reflect changing interfaces in other "modules."
+ *
+ * Revision 1.4 1997/05/27 17:44:31 curt
+ * Renamed & rearranged variables and routines. Added some initial simple
+ * timer/alarm routines so the flight model can be updated on a regular
+ * interval.
+ *
+ * Revision 1.3 1997/05/23 15:40:25 curt
+ * Added GNU copyright headers.
+ * Fog now works!
+ *
+ * Revision 1.2 1997/05/23 00:35:12 curt
+ * Trying to get fog to work ...
+ *
+ * Revision 1.1 1997/05/21 15:57:51 curt
+ * Renamed due to added GLUT support.
+ *
+ * Revision 1.3 1997/05/19 18:22:42 curt
+ * Parameter tweaking ... starting to stub in fog support.
+ *
+ * Revision 1.2 1997/05/17 00:17:34 curt
+ * Trying to stub in support for standard OpenGL.
+ *
+ * Revision 1.1 1997/05/16 16:05:52 curt
+ * Initial revision.
+ *
+ */
+++ /dev/null
-/**************************************************************************
- * GLmain.c -- top level sim routines
- *
- * Written by Curtis Olson for OpenGL, started May 1997.
- *
- * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id$
- * (Log is kept at end of this file)
- **************************************************************************/
-
-
-#include <stdio.h>
-
-#ifdef WIN32
-# include <windows.h>
-#endif
-
-#ifdef GLUT
- #include <GL/glut.h>
- #include "GLUTkey.h"
-#elif MESA_TK
- /* assumes -I/usr/include/mesa in compile command */
- #include "gltk.h"
- #include "GLTKkey.h"
-#endif
-
-#include "../constants.h"
-
-#include "../Aircraft/aircraft.h"
-#include "../Scenery/mesh.h"
-#include "../Scenery/scenery.h"
-#include "../Math/fg_random.h"
-#include "../Math/mat3.h"
-#include "../Math/polar.h"
-#include "../Time/fg_timer.h"
-#include "../Weather/weather.h"
-
-
-/* This is a record containing all the info for the aircraft currently
- being operated */
-struct aircraft_params current_aircraft;
-
-/* view parameters */
-static GLfloat win_ratio = 1.0;
-
-/* sun direction */
-static GLfloat sun_vec[4] = {0.2948, 0.7816, -0.5498, 0.0 };
-
-/* temporary hack */
-/* extern struct mesh *mesh_ptr; */
-/* Function prototypes */
-/* GLint fgSceneryCompile_OLD(); */
-/* static void fgSceneryDraw_OLD(); */
-
-/* pointer to scenery structure */
-/* static GLint scenery, runway; */
-
-/* Another hack */
-double fogDensity = 60000.0; /* in meters */
-double view_offset = 0.0;
-double goal_view_offset = 0.0;
-
-/* Another hack */
-#define DEFAULT_TIMER_HZ 20
-#define DEFAULT_MULTILOOP 6
-#define DEFAULT_MODEL_HZ (DEFAULT_TIMER_HZ * DEFAULT_MULTILOOP)
-
-double Simtime;
-
-/* Another hack */
-int use_signals = 0;
-
-
-/**************************************************************************
- * fgInitVisuals() -- Initialize various GL/view parameters
- **************************************************************************/
-
-static void fgInitVisuals() {
- /* if the 4th field is 0.0, this specifies a direction ... */
- static GLfloat fogColor[4] = {0.65, 0.65, 0.85, 1.0};
-
- glEnable( GL_DEPTH_TEST );
- /* glFrontFace(GL_CW); */
- glEnable( GL_CULL_FACE );
-
- /* If enabled, normal vectors specified with glNormal are scaled
- to unit length after transformation. See glNormal. */
- glEnable( GL_NORMALIZE );
-
- glLightfv( GL_LIGHT0, GL_POSITION, sun_vec );
- glEnable( GL_LIGHTING );
- glEnable( GL_LIGHT0 );
-
- glShadeModel( GL_FLAT ); /* glShadeModel( GL_SMOOTH ); */
-
- glEnable( GL_FOG );
- glFogi (GL_FOG_MODE, GL_LINEAR);
- /* glFogf (GL_FOG_START, 1.0); */
- glFogf (GL_FOG_END, fogDensity);
- glFogfv (GL_FOG_COLOR, fogColor);
- /* glFogf (GL_FOG_DENSITY, fogDensity); */
- /* glHint (GL_FOG_HINT, GL_FASTEST); */
-
- glClearColor(0.6, 0.6, 0.9, 1.0);
-}
-
-
-/**************************************************************************
- * Update the view volume, position, and orientation
- **************************************************************************/
-
-static void fgUpdateViewParams() {
- struct fgCartesianPoint view_pos /*, alt_up */;
- struct flight_params *f;
- MAT3mat R, TMP, UP, LOCAL, VIEW;
- MAT3vec vec, view_up, forward, view_forward, local_up;
-
- f = ¤t_aircraft.flight;
-
- /* Tell GL we are about to modify the projection parameters */
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective(45.0, 1.0/win_ratio, 1.0, 200000.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- /* calculate view position in current FG view coordinate system */
- view_pos = fgPolarToCart(FG_Longitude, FG_Lat_geocentric,
- FG_Radius_to_vehicle * FEET_TO_METER + 1.0);
- printf("View pos = %.4f, %.4f, %.4f\n", view_pos.x, view_pos.y, view_pos.z);
-
- /* Derive the LOCAL aircraft rotation matrix (roll, pitch, yaw) */
- MAT3_SET_VEC(vec, 0.0, 0.0, 1.0);
- MAT3rotate(R, vec, FG_Phi);
- /* printf("Roll matrix\n"); */
- /* MAT3print(R, stdout); */
-
- MAT3_SET_VEC(vec, 0.0, 1.0, 0.0);
- /* MAT3mult_vec(vec, vec, R); */
- MAT3rotate(TMP, vec, FG_Theta);
- /* printf("Pitch matrix\n"); */
- /* MAT3print(TMP, stdout); */
- MAT3mult(R, R, TMP);
-
- MAT3_SET_VEC(vec, 1.0, 0.0, 0.0);
- /* MAT3mult_vec(vec, vec, R); */
- /* MAT3rotate(TMP, vec, FG_Psi - FG_PI_2); */
- MAT3rotate(TMP, vec, -FG_Psi);
- /* printf("Yaw matrix\n");
- MAT3print(TMP, stdout); */
- MAT3mult(LOCAL, R, TMP);
- /* printf("LOCAL matrix\n"); */
- /* MAT3print(LOCAL, stdout); */
-
- /* Derive the local UP transformation matrix based on *geodetic*
- * coordinates */
- MAT3_SET_VEC(vec, 0.0, 0.0, 1.0);
- MAT3rotate(R, vec, FG_Longitude); /* R = rotate about Z axis */
- /* printf("Longitude matrix\n"); */
- /* MAT3print(R, stdout); */
-
- MAT3_SET_VEC(vec, 0.0, 1.0, 0.0);
- MAT3mult_vec(vec, vec, R);
- MAT3rotate(TMP, vec, -FG_Latitude); /* TMP = rotate about X axis */
- /* printf("Latitude matrix\n"); */
- /* MAT3print(TMP, stdout); */
-
- MAT3mult(UP, R, TMP);
- /* printf("Local up matrix\n"); */
- /* MAT3print(UP, stdout); */
-
- MAT3_SET_VEC(local_up, 1.0, 0.0, 0.0);
- MAT3mult_vec(local_up, local_up, UP);
-
- printf(" Local Up = (%.4f, %.4f, %.4f)\n", local_up[0], local_up[1],
- local_up[2]);
-
- /* Alternative method to Derive local up vector based on
- * *geodetic* coordinates */
- /* alt_up = fgPolarToCart(FG_Longitude, FG_Latitude, 1.0); */
- /* printf(" Alt Up = (%.4f, %.4f, %.4f)\n",
- alt_up.x, alt_up.y, alt_up.z); */
-
- /* Derive the VIEW matrix */
- MAT3mult(VIEW, LOCAL, UP);
- /* printf("VIEW matrix\n"); */
- /* MAT3print(VIEW, stdout); */
-
- /* generate the current up, forward, and fwrd-view vectors */
- MAT3_SET_VEC(vec, 1.0, 0.0, 0.0);
- MAT3mult_vec(view_up, vec, VIEW);
-
- MAT3_SET_VEC(vec, 0.0, 0.0, 1.0);
- MAT3mult_vec(forward, vec, VIEW);
- printf("Forward vector is (%.2f,%.2f,%.2f)\n", forward[0], forward[1],
- forward[2]);
-
- MAT3rotate(TMP, view_up, view_offset);
- MAT3mult_vec(view_forward, forward, TMP);
-
- gluLookAt(view_pos.x, view_pos.y, view_pos.z,
- view_pos.x + view_forward[0], view_pos.y + view_forward[1],
- view_pos.z + view_forward[2],
- view_up[0], view_up[1], view_up[2]);
-
- glLightfv( GL_LIGHT0, GL_POSITION, sun_vec );
-}
-
-
-/**************************************************************************
- * Update all Visuals (redraws anything graphics related)
- **************************************************************************/
-
-static void fgUpdateVisuals( void ) {
- /* update view volume parameters */
- fgUpdateViewParams();
-
- glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
- /* Tell GL we are switching to model view parameters */
- glMatrixMode(GL_MODELVIEW);
- /* glLoadIdentity(); */
-
- /* draw scenery */
- fgSceneryRender();
-
- #ifdef GLUT
- glutSwapBuffers();
- #elif MESA_TK
- tkSwapBuffers();
- #endif
-}
-
-
-/**************************************************************************
- * Update internal time dependent calculations (i.e. flight model)
- **************************************************************************/
-
-void fgUpdateTimeDepCalcs(int multi_loop) {
- struct flight_params *f;
- int i;
-
- f = ¤t_aircraft.flight;
-
- /* update the flight model */
- if ( multi_loop < 0 ) {
- multi_loop = DEFAULT_MULTILOOP;
- }
-
- /* printf("updating flight model x %d\n", multi_loop); */
- fgFlightModelUpdate(FG_LARCSIM, f, multi_loop);
-
- for ( i = 0; i < multi_loop; i++ ) {
- if ( fabs(goal_view_offset - view_offset) < 0.05 ) {
- view_offset = goal_view_offset;
- break;
- } else {
- /* move view_offset towards goal_view_offset */
- if ( goal_view_offset > view_offset ) {
- if ( goal_view_offset - view_offset < FG_PI ) {
- view_offset += 0.01;
- } else {
- view_offset -= 0.01;
- }
- } else {
- if ( view_offset - goal_view_offset < FG_PI ) {
- view_offset -= 0.01;
- } else {
- view_offset += 0.01;
- }
- }
- if ( view_offset > FG_2PI ) {
- view_offset -= FG_2PI;
- } else if ( view_offset < 0 ) {
- view_offset += FG_2PI;
- }
- }
- }
-}
-
-
-void fgInitTimeDepCalcs() {
- /* initialize timer */
-
-#ifdef USE_ITIMER
- fgTimerInit( 1.0 / DEFAULT_TIMER_HZ, fgUpdateTimeDepCalcs );
-#endif USE_ITIMER
-
-}
-
-
-/**************************************************************************
- * Scenery management routines
- **************************************************************************/
-
-/* static void fgSceneryInit_OLD() { */
- /* make scenery */
-/* scenery = fgSceneryCompile_OLD();
- runway = fgRunwayHack_OLD(0.69, 53.07);
-} */
-
-
-/* create the scenery */
-/* GLint fgSceneryCompile_OLD() {
- GLint scenery;
-
- scenery = mesh2GL(mesh_ptr_OLD);
-
- return(scenery);
-}
-*/
-
-/* hack in a runway */
-/* GLint fgRunwayHack_OLD(double width, double length) {
- static GLfloat concrete[4] = { 0.5, 0.5, 0.5, 1.0 };
- static GLfloat line[4] = { 0.9, 0.9, 0.9, 1.0 };
- int i;
- int num_lines = 16;
- float line_len, line_width_2, cur_pos;
-
- runway = glGenLists(1);
- glNewList(runway, GL_COMPILE);
- */
- /* draw concrete */
-/* glBegin(GL_POLYGON);
- glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, concrete );
- glNormal3f(0.0, 0.0, 1.0);
-
- glVertex3d( 0.0, -width/2.0, 0.0);
- glVertex3d( 0.0, width/2.0, 0.0);
- glVertex3d(length, width/2.0, 0.0);
- glVertex3d(length, -width/2.0, 0.0);
- glEnd();
- */
- /* draw center line */
-/* glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, line );
- line_len = length / ( 2 * num_lines + 1);
- printf("line_len = %.3f\n", line_len);
- line_width_2 = 0.02;
- cur_pos = line_len;
- for ( i = 0; i < num_lines; i++ ) {
- glBegin(GL_POLYGON);
- glVertex3d( cur_pos, -line_width_2, 0.005);
- glVertex3d( cur_pos, line_width_2, 0.005);
- cur_pos += line_len;
- glVertex3d( cur_pos, line_width_2, 0.005);
- glVertex3d( cur_pos, -line_width_2, 0.005);
- cur_pos += line_len;
- glEnd();
- }
-
- glEndList();
-
- return(runway);
-}
-*/
-
-/* draw the scenery */
-/*static void fgSceneryDraw_OLD() {
- static float z = 32.35;
-
- glPushMatrix();
-
- glCallList(scenery);
-
- printf("*** Drawing runway at %.2f\n", z);
-
- glTranslatef( -398391.28, 120070.41, 32.35);
- glRotatef(170.0, 0.0, 0.0, 1.0);
- glCallList(runway);
-
- glPopMatrix();
-}
-*/
-
-/* What should we do when we have nothing else to do? How about get
- * ready for the next move and update the display? */
-static void fgMainLoop( void ) {
- static int remainder = 0;
- int elapsed, multi_loop;
- double rough_elev;
- struct flight_params *f;
-
- f = ¤t_aircraft.flight;
-
- elapsed = fgGetTimeInterval();
- printf("Time interval is = %d, previous remainder is = %d\n", elapsed,
- remainder);
- printf("--> Frame rate is = %.2f\n", 1000.0 / (float)elapsed);
- elapsed += remainder;
-
- multi_loop = ((float)elapsed * 0.001) * DEFAULT_MODEL_HZ;
- remainder = elapsed - ((multi_loop*1000) / DEFAULT_MODEL_HZ);
- printf("Model iterations needed = %d, new remainder = %d\n", multi_loop,
- remainder);
-
- aircraft_debug(1);
- fgUpdateVisuals();
-
- if ( ! use_signals ) {
- fgUpdateTimeDepCalcs(multi_loop);
- }
-
- /* I'm just sticking this here for now, it should probably move
- * eventually */
- rough_elev = mesh_altitude(FG_Longitude * RAD_TO_ARCSEC,
- FG_Latitude * RAD_TO_ARCSEC);
- printf("Ground elevation is %.2f meters here.\n", rough_elev);
- /* FG_Runway_altitude = rough_elev * METER_TO_FEET; */
-
- if ( FG_Altitude * FEET_TO_METER < rough_elev + 3.758099) {
- /* set this here, otherwise if we set runway height above our
- current height we get a really nasty bounce. */
- FG_Runway_altitude = FG_Altitude - 3.758099;
-
- /* now set aircraft altitude above ground */
- FG_Altitude = rough_elev * METER_TO_FEET + 3.758099;
- printf("<*> resetting altitude to %.0f meters\n",
- FG_Altitude * FEET_TO_METER);
- }
-
- /* update the weather for our current position */
- fgWeatherUpdate(FG_Longitude * RAD_TO_ARCSEC,
- FG_Latitude * RAD_TO_ARCSEC,
- FG_Altitude * FEET_TO_METER);
-}
-
-
-/**************************************************************************
- * Handle new window size or exposure
- **************************************************************************/
-
-static void fgReshape( int width, int height ) {
- /* Do this so we can call fgReshape(0,0) ourselves without having to know
- * what the values of width & height are. */
- if ( (height > 0) && (width > 0) ) {
- win_ratio = (GLfloat) height / (GLfloat) width;
- }
-
- /* Inform gl of our view window size */
- glViewport(0, 0, (GLint)width, (GLint)height);
-
- fgUpdateViewParams();
-
- glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-}
-
-
-/**************************************************************************
- * Main ...
- **************************************************************************/
-
-int main( int argc, char *argv[] ) {
- struct flight_params *f;
- double rough_elev;
-
- f = ¤t_aircraft.flight;
-
- printf("Flight Gear: prototype code to test OpenGL, LaRCsim, and VRML\n\n");
-
-
- /**********************************************************************
- * Initialize the Window/Graphics environment.
- **********************************************************************/
-
- #ifdef GLUT
- /* initialize GLUT */
- glutInit(&argc, argv);
-
- /* Define Display Parameters */
- glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
-
- /* Define initial window size */
- glutInitWindowSize(640, 480);
-
- /* Initialize the main window */
- glutCreateWindow("Flight Gear");
- #elif MESA_TK
- /* Define initial window size */
- tkInitPosition(0, 0, 640, 480);
-
- /* Define Display Parameters */
- tkInitDisplayMode( TK_RGB | TK_DEPTH | TK_DOUBLE | TK_DIRECT );
-
- /* Initialize the main window */
- if (tkInitWindow("Flight Gear") == GL_FALSE) {
- tkQuit();
- }
- #endif
-
- /* seed the random number generater */
- fg_srandom();
-
- /* setup view parameters, only makes GL calls */
- fgInitVisuals();
-
-
- /****************************************************************
- * The following section sets up the flight model EOM parameters and
- * should really be read in from one or more files.
- ****************************************************************/
-
- /* Globe Aiport, AZ */
- FG_Runway_altitude = 3234.5;
- FG_Runway_latitude = 120070.41;
- FG_Runway_longitude = -398391.28;
- FG_Runway_heading = 102.0 * DEG_TO_RAD;
-
- /* Initial Position */
- FG_Latitude = ( 120070.41 / 3600.0 ) * DEG_TO_RAD;
- FG_Longitude = ( -398391.28 / 3600.0 ) * DEG_TO_RAD;
- FG_Altitude = FG_Runway_altitude + 3.758099;
-
- /* FG_Latitude = 0.0; */
- /* FG_Longitude = 0.0; */
- /* FG_Altitude = 15000.0; */
-
- printf("Initial position is: (%.4f, %.4f, %.2f)\n", FG_Latitude,
- FG_Longitude, FG_Altitude);
-
- /* Initial Velocity */
- FG_V_north = 0.0 /* 7.287719E+00 */;
- FG_V_east = 0.0 /* 1.521770E+03 */;
- FG_V_down = 0.0 /* -1.265722E-05 */;
-
- /* Initial Orientation */
- FG_Phi = -2.658474E-06;
- FG_Theta = 7.401790E-03;
- /* FG_Psi = 270.0 * DEG_TO_RAD; */
- FG_Psi = 0.0 * DEG_TO_RAD;
-
- /* Initial Angular B rates */
- FG_P_body = 7.206685E-05;
- FG_Q_body = 0.000000E+00;
- FG_R_body = 9.492658E-05;
-
- FG_Earth_position_angle = 0.000000E+00;
-
- /* Mass properties and geometry values */
- FG_Mass = 8.547270E+01;
- FG_I_xx = 1.048000E+03;
- FG_I_yy = 3.000000E+03;
- FG_I_zz = 3.530000E+03;
- FG_I_xz = 0.000000E+00;
-
- /* CG position w.r.t. ref. point */
- FG_Dx_cg = 0.000000E+00;
- FG_Dy_cg = 0.000000E+00;
- FG_Dz_cg = 0.000000E+00;
-
- /* Set initial position and slew parameters */
- /* fgSlewInit(-398391.3, 120070.41, 244, 3.1415); */ /* GLOBE Airport */
- /* fgSlewInit(-335340,162540, 15, 4.38); */
- /* fgSlewInit(-398673.28,120625.64, 53, 4.38); */
-
- /* Initialize the Scenery Management system */
- fgSceneryInit();
-
- /* Tell the Scenery Management system where we are so it can load
- * the correct scenery data */
- fgSceneryUpdate(FG_Latitude, FG_Longitude, FG_Altitude);
-
- /* I'm just sticking this here for now, it should probably move
- * eventually */
- rough_elev = mesh_altitude(FG_Longitude * RAD_TO_DEG * 3600.0,
- FG_Latitude * RAD_TO_DEG * 3600.0);
- printf("Ground elevation is %.2f meters here.\n", rough_elev);
- if ( rough_elev > -9990.0 ) {
- FG_Runway_altitude = rough_elev * METER_TO_FEET;
- }
-
- if ( FG_Altitude < FG_Runway_altitude ) {
- FG_Altitude = FG_Runway_altitude + 3.758099;
- }
- /* end of thing that I just stuck in that I should probably move */
-
- /* Initialize the flight model data structures base on above values */
- fgFlightModelInit( FG_LARCSIM, f, 1.0 / DEFAULT_MODEL_HZ );
-
- if ( use_signals ) {
- /* init timer routines, signals, etc. Arrange for an alarm
- signal to be generated, etc. */
- fgInitTimeDepCalcs();
- }
-
- /* Initialize the weather modeling subsystem */
- fgWeatherInit();
-
- /**********************************************************************
- * Initialize the Event Handlers.
- **********************************************************************/
-
- #ifdef GLUT
- /* call fgReshape() on window resizes */
- glutReshapeFunc( fgReshape );
-
- /* call key() on keyboard event */
- glutKeyboardFunc( GLUTkey );
- glutSpecialFunc( GLUTspecialkey );
-
- /* call fgMainLoop() whenever there is nothing else to do */
- glutIdleFunc( fgMainLoop );
-
- /* draw the scene */
- glutDisplayFunc( fgUpdateVisuals );
-
- /* pass control off to the GLUT event handler */
- glutMainLoop();
- #elif MESA_TK
- /* call fgReshape() on expose events */
- tkExposeFunc( fgReshape );
-
- /* call fgReshape() on window resizes */
- tkReshapeFunc( fgReshape );
-
- /* call key() on keyboard event */
- tkKeyDownFunc( GLTKkey );
-
- /* call fgMainLoop() whenever there is nothing else to do */
- tkIdleFunc( fgMainLoop );
-
- /* draw the scene */
- tkDisplayFunc( fgUpdateVisuals );
-
- /* pass control off to the tk event handler */
- tkExec();
- #endif
-
- return(0);
-}
-
-#ifdef NO_PRINTF
-
-#include <stdarg.h>
-int printf (const char *format, ...) {
-}
-
-#endif
-
-
-/* $Log$
-/* Revision 1.43 1997/08/02 16:23:47 curt
-/* Misc. tweaks.
-/*
- * Revision 1.42 1997/08/01 19:43:33 curt
- * Making progress with coordinate system overhaul.
- *
- * Revision 1.41 1997/07/31 22:52:37 curt
- * Working on redoing internal coordinate systems & scenery transformations.
- *
- * Revision 1.40 1997/07/30 16:12:42 curt
- * Moved fg_random routines from Util/ to Math/
- *
- * Revision 1.39 1997/07/21 14:45:01 curt
- * Minor tweaks.
- *
- * Revision 1.38 1997/07/19 23:04:47 curt
- * Added an initial weather section.
- *
- * Revision 1.37 1997/07/19 22:34:02 curt
- * Moved PI definitions to ../constants.h
- * Moved random() stuff to ../Utils/ and renamed fg_random()
- *
- * Revision 1.36 1997/07/18 23:41:25 curt
- * Tweaks for building with Cygnus Win32 compiler.
- *
- * Revision 1.35 1997/07/18 14:28:34 curt
- * Hacked in some support for wind/turbulence.
- *
- * Revision 1.34 1997/07/16 20:04:48 curt
- * Minor tweaks to aid Win32 port.
- *
- * Revision 1.33 1997/07/12 03:50:20 curt
- * Added an #include <Windows32/Base.h> to help compiling for Win32
- *
- * Revision 1.32 1997/07/11 03:23:18 curt
- * Solved some scenery display/orientation problems. Still have a positioning
- * (or transformation?) problem.
- *
- * Revision 1.31 1997/07/11 01:29:58 curt
- * More tweaking of terrian floor.
- *
- * Revision 1.30 1997/07/10 04:26:37 curt
- * We now can interpolated ground elevation for any position in the grid. We
- * can use this to enforce a "hard" ground. We still need to enforce some
- * bounds checking so that we don't try to lookup data points outside the
- * grid data set.
- *
- * Revision 1.29 1997/07/09 21:31:12 curt
- * Working on making the ground "hard."
- *
- * Revision 1.28 1997/07/08 18:20:12 curt
- * Working on establishing a hard ground.
- *
- * Revision 1.27 1997/07/07 20:59:49 curt
- * Working on scenery transformations to enable us to fly fluidly over the
- * poles with no discontinuity/distortion in scenery.
- *
- * Revision 1.26 1997/07/05 20:43:34 curt
- * renamed mat3 directory to Math so we could add other math related routines.
- *
- * Revision 1.25 1997/06/29 21:19:17 curt
- * Working on scenery management system.
- *
- * Revision 1.24 1997/06/26 22:14:53 curt
- * Beginning work on a scenery management system.
- *
- * Revision 1.23 1997/06/26 19:08:33 curt
- * Restructuring make, adding automatic "make dep" support.
- *
- * Revision 1.22 1997/06/25 15:39:47 curt
- * Minor changes to compile with rsxnt/win32.
- *
- * Revision 1.21 1997/06/22 21:44:41 curt
- * Working on intergrating the VRML (subset) parser.
- *
- * Revision 1.20 1997/06/21 17:12:53 curt
- * Capitalized subdirectory names.
- *
- * Revision 1.19 1997/06/18 04:10:31 curt
- * A couple more runway tweaks ...
- *
- * Revision 1.18 1997/06/18 02:21:24 curt
- * Hacked in a runway
- *
- * Revision 1.17 1997/06/17 16:51:58 curt
- * Timer interval stuff now uses gettimeofday() instead of ftime()
- *
- * Revision 1.16 1997/06/17 04:19:16 curt
- * More timer related tweaks with respect to view direction changes.
- *
- * Revision 1.15 1997/06/17 03:41:10 curt
- * Nonsignal based interval timing is now working.
- * This would be a good time to look at cleaning up the code structure a bit.
- *
- * Revision 1.14 1997/06/16 19:32:51 curt
- * Starting to add general timer support.
- *
- * Revision 1.13 1997/06/02 03:40:06 curt
- * A tiny bit more view tweaking.
- *
- * Revision 1.12 1997/06/02 03:01:38 curt
- * Working on views (side, front, back, transitions, etc.)
- *
- * Revision 1.11 1997/05/31 19:16:25 curt
- * Elevator trim added.
- *
- * Revision 1.10 1997/05/31 04:13:52 curt
- * WE CAN NOW FLY!!!
- *
- * Continuing work on the LaRCsim flight model integration.
- * Added some MSFS-like keyboard input handling.
- *
- * Revision 1.9 1997/05/30 19:27:01 curt
- * The LaRCsim flight model is starting to look like it is working.
- *
- * Revision 1.8 1997/05/30 03:54:10 curt
- * Made a bit more progress towards integrating the LaRCsim flight model.
- *
- * Revision 1.7 1997/05/29 22:39:49 curt
- * Working on incorporating the LaRCsim flight model.
- *
- * Revision 1.6 1997/05/29 12:31:39 curt
- * Minor tweaks, moving towards general flight model integration.
- *
- * Revision 1.5 1997/05/29 02:33:23 curt
- * Updated to reflect changing interfaces in other "modules."
- *
- * Revision 1.4 1997/05/27 17:44:31 curt
- * Renamed & rearranged variables and routines. Added some initial simple
- * timer/alarm routines so the flight model can be updated on a regular
- * interval.
- *
- * Revision 1.3 1997/05/23 15:40:25 curt
- * Added GNU copyright headers.
- * Fog now works!
- *
- * Revision 1.2 1997/05/23 00:35:12 curt
- * Trying to get fog to work ...
- *
- * Revision 1.1 1997/05/21 15:57:51 curt
- * Renamed due to added GLUT support.
- *
- * Revision 1.3 1997/05/19 18:22:42 curt
- * Parameter tweaking ... starting to stub in fog support.
- *
- * Revision 1.2 1997/05/17 00:17:34 curt
- * Trying to stub in support for standard OpenGL.
- *
- * Revision 1.1 1997/05/16 16:05:52 curt
- * Initial revision.
- *
- */
TARGET=fg0
-CFILES = GLmain.c $(INTERFACE_FILES) mesh2GL.c
+CFILES = GLUTmain.c $(INTERFACE_FILES) mesh2GL.c
OFILES = $(CFILES:.c=.o)
AFILES = ../Aircraft/libAircraft.a ../Controls/libControls.a \
../Flight/libFlight.a ../Flight/LaRCsim/libLaRCsim.a \
include depend
-GLmain.o:
- $(CC) $(CFLAGS) -c GLmain.c -o $@
+GLUTmain.o:
+ $(CC) $(CFLAGS) -c GLUTmain.c -o $@
GLUTkey.o:
$(CC) $(CFLAGS) -c GLUTkey.c -o $@
#---------------------------------------------------------------------------
# $Log$
+# Revision 1.28 1997/08/02 18:45:01 curt
+# Renamed GLmain.c GLUTmain.c
+#
# Revision 1.27 1997/07/31 22:52:39 curt
# Working on redoing internal coordinate systems & scenery transformations.
#
projects / flightgear.git / commitdiff