Added a keyboard binding to dynamically adjust field of view.
Added a command line option to specify fov. Adjusted terrain color. Root path info moved to fgOPTIONS. Added ability to parse options out of a config file.
This commit is contained in:
curt
parent
17cfc04cef
commit
c57071acfd
5 changed files with 299 additions and 91 deletions
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@ -106,6 +106,9 @@ void GLUTkey(unsigned char k, int x, int y) {
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case 87: /* W key */
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displayInstruments = !displayInstruments;
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return;
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case 88: /* X key */
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o->fov *= 1.05;
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return;
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case 90: /* Z key */
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w->visibility /= 1.10;
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xglFogf (GL_FOG_START, w->visibility / 1000000.0 );
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@ -168,6 +171,9 @@ void GLUTkey(unsigned char k, int x, int y) {
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case 116: /* t key */
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t->warp_delta += 30;
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return;
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case 120: /* X key */
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o->fov /= 1.05;
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return;
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case 122: /* z key */
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w->visibility *= 1.10;
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xglFogf (GL_FOG_START, w->visibility / 1000000.0 );
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@ -179,7 +185,8 @@ void GLUTkey(unsigned char k, int x, int y) {
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// if( fg_DebugOutput ) {
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// fclose( fg_DebugOutput );
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// }
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exit(0);
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fgPrintf( FG_INPUT, FG_EXIT,
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"Program exiting normally at user request.\n");
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}
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}
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}
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@ -267,12 +274,19 @@ void GLUTspecialkey(int k, int x, int y) {
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/* $Log$
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/* Revision 1.7 1998/05/07 23:14:14 curt
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/* Added "D" key binding to set autopilot heading.
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/* Made frame rate calculation average out over last 10 frames.
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/* Borland C++ floating point exception workaround.
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/* Added a --tile-radius=n option.
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/* Revision 1.8 1998/05/13 18:29:56 curt
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/* Added a keyboard binding to dynamically adjust field of view.
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/* Added a command line option to specify fov.
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/* Adjusted terrain color.
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/* Root path info moved to fgOPTIONS.
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/* Added ability to parse options out of a config file.
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/*
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* Revision 1.7 1998/05/07 23:14:14 curt
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* Added "D" key binding to set autopilot heading.
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* Made frame rate calculation average out over last 10 frames.
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* Borland C++ floating point exception workaround.
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* Added a --tile-radius=n option.
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*
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* Revision 1.6 1998/04/28 01:20:20 curt
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* Type-ified fgTIME and fgVIEW.
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* Added a command line option to disable textures.
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@ -225,10 +225,12 @@ static void fgInitVisuals( void ) {
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static void fgUpdateViewParams( void ) {
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fgFLIGHT *f;
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fgLIGHT *l;
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fgOPTIONS *o;
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fgVIEW *v;
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f = current_aircraft.flight;
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l = &cur_light_params;
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o = ¤t_options;
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v = ¤t_view;
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fgViewUpdate(f, v, l);
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@ -239,13 +241,13 @@ static void fgUpdateViewParams( void ) {
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// Tell GL we are about to modify the projection parameters
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xglMatrixMode(GL_PROJECTION);
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xglLoadIdentity();
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gluPerspective(65.0, 2.0/win_ratio, 1.0, 100000.0);
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gluPerspective(o->fov, 2.0/win_ratio, 1.0, 100000.0);
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} else {
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xglViewport(0, 0 , (GLint)winWidth, (GLint) winHeight);
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// Tell GL we are about to modify the projection parameters
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xglMatrixMode(GL_PROJECTION);
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xglLoadIdentity();
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gluPerspective(65.0, 1.0/win_ratio, 10.0, 100000.0);
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gluPerspective(o->fov, 1.0/win_ratio, 10.0, 100000.0);
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}
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xglMatrixMode(GL_MODELVIEW);
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@ -332,8 +334,8 @@ static void fgRenderFrame( void ) {
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double angle;
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GLfloat black[4] = { 0.0, 0.0, 0.0, 1.0 };
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GLfloat white[4] = { 1.0, 1.0, 1.0, 1.0 };
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GLfloat color[4] = { 0.54, 0.44, 0.29, 1.0 };
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GLfloat terrain_color[4] = { 0.54, 0.44, 0.29, 1.0 };
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l = &cur_light_params;
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o = ¤t_options;
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t = &cur_time_params;
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@ -425,8 +427,8 @@ static void fgRenderFrame( void ) {
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xglMaterialfv (GL_FRONT, GL_DIFFUSE, white);
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} else {
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xglDisable( GL_TEXTURE_2D );
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xglMaterialfv (GL_FRONT, GL_AMBIENT, color);
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xglMaterialfv (GL_FRONT, GL_DIFFUSE, color);
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xglMaterialfv (GL_FRONT, GL_AMBIENT, terrain_color);
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xglMaterialfv (GL_FRONT, GL_DIFFUSE, terrain_color);
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}
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fgTileMgrRender();
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@ -675,9 +677,12 @@ int fgGlutInitEvents( void ) {
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// Main ...
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int main( int argc, char **argv ) {
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fgFLIGHT *f;
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fgOPTIONS *o;
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char config[256];
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int result; // Used in command line argument.
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f = current_aircraft.flight;
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o = ¤t_options;
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#ifdef HAVE_BC5PLUS
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_control87(MCW_EM, MCW_EM); /* defined in float.h */
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@ -693,14 +698,27 @@ int main( int argc, char **argv ) {
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fgPrintf( FG_GENERAL, FG_EXIT, "GLUT initialization failed ...\n" );
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}
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// Parse remaining command line options
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result = current_options.parse(argc, argv);
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// Attempt to locate and parse a config file
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// First check fg_root
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strcpy(config, o->fg_root);
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strcat(config, "/system.fgfsrc");
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result = o->parse_config_file(config);
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// Next check home directory
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if ( getenv("HOME") != NULL ) {
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strcpy(config, getenv("HOME"));
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strcat(config, "/.fgfsrc");
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result = o->parse_config_file(config);
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}
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// Parse remaining command line options
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// These will override anything specified in a config file
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result = o->parse_command_line(argc, argv);
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if ( result != FG_OPTIONS_OK ) {
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// Something must have gone horribly wrong with the command
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// line parsing or maybe the user just requested help ... :-)
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current_options.usage();
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fgPrintf( FG_GENERAL, FG_EXIT, "\nShutting down ...\n");
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o->usage();
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fgPrintf( FG_GENERAL, FG_EXIT, "\nExiting ...\n");
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}
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// These are a few miscellaneous things that aren't really
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@ -750,6 +768,13 @@ extern "C" {
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// $Log$
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// Revision 1.14 1998/05/13 18:29:57 curt
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// Added a keyboard binding to dynamically adjust field of view.
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// Added a command line option to specify fov.
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// Adjusted terrain color.
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// Root path info moved to fgOPTIONS.
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// Added ability to parse options out of a config file.
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//
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// Revision 1.13 1998/05/11 18:18:15 curt
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// For flat shading use "glHint (GL_FOG_HINT, GL_FASTEST )"
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//
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@ -169,26 +169,23 @@ int fgInitPosition( void ) {
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// General house keeping initializations
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int fgInitGeneral( void ) {
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fgGENERAL *g;
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fgOPTIONS *o;
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int i;
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g = &general;
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o = ¤t_options;
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fgPrintf( FG_GENERAL, FG_INFO, "General Initialization\n" );
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fgPrintf( FG_GENERAL, FG_INFO, "======= ==============\n" );
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// determine the fg root path.
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if( !(g->root_dir) ) {
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// If not set by command line test for environmental var..
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g->root_dir = getenv("FG_ROOT");
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if ( !g->root_dir ) {
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// No root path set? Then assume, we will exit if this is
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// wrong when looking for support files.
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fgPrintf( FG_GENERAL, FG_EXIT, "%s %s\n",
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"Cannot continue without environment variable FG_ROOT",
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"being defined.");
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}
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if ( !strlen(o->fg_root) ) {
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// No root path set? Then assume, we will exit if this is
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// wrong when looking for support files.
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fgPrintf( FG_GENERAL, FG_EXIT, "%s %s\n",
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"Cannot continue without environment variable FG_ROOT",
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"being defined.");
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}
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fgPrintf( FG_GENERAL, FG_INFO, "FG_ROOT = %s\n\n", g->root_dir);
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fgPrintf( FG_GENERAL, FG_INFO, "FG_ROOT = %s\n\n", o->fg_root);
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// prime the frame rate counter pump
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for ( i = 0; i < FG_FRAME_RATE_HISTORY; i++ ) {
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@ -387,6 +384,13 @@ int fgInitSubsystems( void ) {
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// $Log$
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// Revision 1.12 1998/05/13 18:29:58 curt
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// Added a keyboard binding to dynamically adjust field of view.
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// Added a command line option to specify fov.
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// Adjusted terrain color.
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// Root path info moved to fgOPTIONS.
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// Added ability to parse options out of a config file.
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//
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// Revision 1.11 1998/05/07 23:14:15 curt
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// Added "D" key binding to set autopilot heading.
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// Made frame rate calculation average out over last 10 frames.
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273
Main/options.cxx
273
Main/options.cxx
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@ -33,6 +33,7 @@
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#include <string.h>
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#include <Debug/fg_debug.h>
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#include <Include/fg_zlib.h>
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#include "options.hxx"
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@ -45,6 +46,24 @@ fgOPTIONS current_options;
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fgOPTIONS::fgOPTIONS( void ) {
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// set initial values/defaults
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if ( getenv("FG_ROOT") != NULL ) {
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// fg_root could be anywhere, so default to environmental
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// variable $FG_ROOT if it is set.
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strcpy(fg_root, getenv("FG_ROOT"));
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} else {
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// Otherwise, default to a random compiled in location if
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// $FG_ROOT is not set. This can still be overridden from the
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// command line or a config file.
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#if defined(WIN32)
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strcpy(fg_root, "\\FlightGear");
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#else
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strcpy(fg_root, "/usr/local/lib/FlightGear");
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#endif
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}
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// default airport id
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strcpy(airport_id, "");
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// Features
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@ -52,6 +71,7 @@ fgOPTIONS::fgOPTIONS( void ) {
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// Rendering options
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fog = 1;
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fov = 65.0;
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fullscreen = 0;
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shading = 1;
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skyblend = 1;
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@ -66,6 +86,52 @@ fgOPTIONS::fgOPTIONS( void ) {
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}
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// Parse an int out of a --foo-bar=n type option
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static int parse_int(char *arg) {
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int result;
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// advance past the '='
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while ( (arg[0] != '=') && (arg[0] != '\0') ) {
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arg++;
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}
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if ( arg[0] == '=' ) {
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arg++;
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}
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printf("parse_int(): arg = %s\n", arg);
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result = atoi(arg);
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printf("parse_int(): result = %d\n", result);
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return(result);
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}
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// Parse an int out of a --foo-bar=n type option
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static double parse_double(char *arg) {
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double result;
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// advance past the '='
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while ( (arg[0] != '=') && (arg[0] != '\0') ) {
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arg++;
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}
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if ( arg[0] == '=' ) {
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arg++;
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}
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printf("parse_double(): arg = %s\n", arg);
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result = atof(arg);
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printf("parse_double(): result = %.4f\n", result);
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return(result);
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}
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// parse time string in the form of [+-]hh:mm:ss, returns the value in seconds
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static double parse_time(char *time_str) {
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char num[256];
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@ -163,82 +229,118 @@ static int parse_time_offset(char *time_str) {
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}
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// Parse an int out of a --foo-bar=n type option
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static int parse_int(char *arg, int min, int max) {
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int result;
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// Parse --tile-radius=n type option
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// advance past the '='
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while ( (arg[0] != '=') && (arg[0] != '\0') ) {
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arg++;
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#define FG_RADIUS_MIN 3
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#define FG_RADIUS_MAX 9
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static int parse_tile_radius(char *arg) {
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int radius, tmp;
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radius = parse_int(arg);
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// radius must be odd
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tmp = radius / 2;
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if ( radius == ( tmp * 2 ) ) {
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radius -= 1;
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}
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if ( arg[0] == '=' ) {
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arg++;
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if ( radius < FG_RADIUS_MIN ) { radius = FG_RADIUS_MIN; }
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if ( radius > FG_RADIUS_MAX ) { radius = FG_RADIUS_MAX; }
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printf("parse_tile_radius(): radius = %d\n", radius);
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return(radius);
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}
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// Parse --fov=x.xx type option
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#define FG_FOV_MIN 0.1
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#define FG_FOV_MAX 179.9
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static double parse_fov(char *arg) {
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double fov;
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fov = parse_double(arg);
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if ( fov < FG_FOV_MIN ) { fov = FG_FOV_MIN; }
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if ( fov > FG_FOV_MAX ) { fov = FG_FOV_MAX; }
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printf("parse_fov(): result = %.4f\n", fov);
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return(fov);
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}
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// Parse a single option
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int fgOPTIONS::parse_option( char *arg ) {
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// General Options
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if ( (strcmp(arg, "--help") == 0) ||
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(strcmp(arg, "-h") == 0) ) {
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// help/usage request
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return(FG_OPTIONS_HELP);
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} else if ( strcmp(arg, "--disable-hud") == 0 ) {
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hud_status = 0;
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} else if ( strcmp(arg, "--enable-hud") == 0 ) {
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hud_status = 1;
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} else if ( strncmp(arg, "--airport-id=", 13) == 0 ) {
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arg += 13;
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strncpy(airport_id, arg, 4);
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} else if ( strncmp(arg, "--fg-root=", 10) == 0 ) {
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arg += 10;
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strcpy(fg_root, arg);
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} else if ( strcmp(arg, "--disable-fog") == 0 ) {
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fog = 0;
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} else if ( strcmp(arg, "--enable-fog") == 0 ) {
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fog = 1;
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} else if ( strncmp(arg, "--fov=", 6) == 0 ) {
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fov = parse_fov(arg);
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} else if ( strcmp(arg, "--disable-fullscreen") == 0 ) {
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fullscreen = 0;
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} else if ( strcmp(arg, "--enable-fullscreen") == 0 ) {
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fullscreen = 1;
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} else if ( strcmp(arg, "--shading-flat") == 0 ) {
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shading = 0;
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} else if ( strcmp(arg, "--shading-smooth") == 0 ) {
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shading = 1;
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} else if ( strcmp(arg, "--disable-skyblend") == 0 ) {
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skyblend = 0;
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} else if ( strcmp(arg, "--enable-skyblend") == 0 ) {
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skyblend = 1;
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} else if ( strcmp(arg, "--disable-textures") == 0 ) {
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textures = 0;
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} else if ( strcmp(arg, "--enable-textures") == 0 ) {
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textures = 1;
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} else if ( strcmp(arg, "--disable-wireframe") == 0 ) {
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wireframe = 0;
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} else if ( strcmp(arg, "--enable-wireframe") == 0 ) {
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wireframe = 1;
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} else if ( strncmp(arg, "--tile-radius=", 14) == 0 ) {
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tile_radius = parse_tile_radius(arg);
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} else if ( strncmp(arg, "--time-offset=", 14) == 0 ) {
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time_offset = parse_time_offset(arg);
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} else {
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return(FG_OPTIONS_ERROR);
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}
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printf("parse_int(): arg = %s\n", arg);
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result = atoi(arg);
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if ( result < min ) { result = min; }
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if ( result > max ) { result = max; }
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printf("parse_int(): result = %d\n", result);
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return(result);
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return(FG_OPTIONS_OK);
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}
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// Parse the command line options
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int fgOPTIONS::parse( int argc, char **argv ) {
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int fgOPTIONS::parse_command_line( int argc, char **argv ) {
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int i = 1;
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int result;
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fgPrintf(FG_GENERAL, FG_INFO, "Processing arguments\n");
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fgPrintf(FG_GENERAL, FG_INFO, "Processing command line arguments\n");
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while ( i < argc ) {
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fgPrintf(FG_GENERAL, FG_INFO, "argv[%d] = %s\n", i, argv[i]);
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// General Options
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if ( (strcmp(argv[i], "--help") == 0) ||
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(strcmp(argv[i], "-h") == 0) ) {
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// help/usage request
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return(FG_OPTIONS_HELP);
|
||||
} else if ( strcmp(argv[i], "--disable-hud") == 0 ) {
|
||||
hud_status = 0;
|
||||
} else if ( strcmp(argv[i], "--enable-hud") == 0 ) {
|
||||
hud_status = 1;
|
||||
} else if ( strncmp(argv[i], "--airport-id=", 13) == 0 ) {
|
||||
argv[i] += 13;
|
||||
strncpy(airport_id, argv[i], 4);
|
||||
} else if ( strcmp(argv[i], "--disable-fog") == 0 ) {
|
||||
fog = 0;
|
||||
} else if ( strcmp(argv[i], "--enable-fog") == 0 ) {
|
||||
fog = 1;
|
||||
} else if ( strcmp(argv[i], "--disable-fullscreen") == 0 ) {
|
||||
fullscreen = 0;
|
||||
} else if ( strcmp(argv[i], "--enable-fullscreen") == 0 ) {
|
||||
fullscreen = 1;
|
||||
} else if ( strcmp(argv[i], "--shading-flat") == 0 ) {
|
||||
shading = 0;
|
||||
} else if ( strcmp(argv[i], "--shading-smooth") == 0 ) {
|
||||
shading = 1;
|
||||
} else if ( strcmp(argv[i], "--disable-skyblend") == 0 ) {
|
||||
skyblend = 0;
|
||||
} else if ( strcmp(argv[i], "--enable-skyblend") == 0 ) {
|
||||
skyblend = 1;
|
||||
} else if ( strcmp(argv[i], "--disable-textures") == 0 ) {
|
||||
textures = 0;
|
||||
} else if ( strcmp(argv[i], "--enable-textures") == 0 ) {
|
||||
textures = 1;
|
||||
} else if ( strcmp(argv[i], "--disable-wireframe") == 0 ) {
|
||||
wireframe = 0;
|
||||
} else if ( strcmp(argv[i], "--enable-wireframe") == 0 ) {
|
||||
wireframe = 1;
|
||||
} else if ( strncmp(argv[i], "--tile-radius=", 14) == 0 ) {
|
||||
tile_radius = parse_int(argv[i], 3, 9);
|
||||
} else if ( strncmp(argv[i], "--time-offset=", 14) == 0 ) {
|
||||
time_offset = parse_time_offset(argv[i]);
|
||||
} else {
|
||||
return(FG_OPTIONS_ERROR);
|
||||
result = parse_option(argv[i]);
|
||||
if ( (result == FG_OPTIONS_HELP) || (result == FG_OPTIONS_ERROR) ) {
|
||||
return(result);
|
||||
}
|
||||
|
||||
i++;
|
||||
|
|
@ -248,6 +350,44 @@ int fgOPTIONS::parse( int argc, char **argv ) {
|
|||
}
|
||||
|
||||
|
||||
// Parse the command line options
|
||||
int fgOPTIONS::parse_config_file( char *path ) {
|
||||
char fgpath[256], line[256];
|
||||
fgFile f;
|
||||
int len, result;
|
||||
|
||||
strcpy(fgpath, path);
|
||||
strcat(fgpath, ".gz");
|
||||
|
||||
// first try "path.gz"
|
||||
if ( (f = fgopen(fgpath, "rb")) == NULL ) {
|
||||
// next try "path"
|
||||
if ( (f = fgopen(path, "rb")) == NULL ) {
|
||||
return(FG_OPTIONS_ERROR);
|
||||
}
|
||||
}
|
||||
|
||||
fgPrintf(FG_GENERAL, FG_INFO, "Processing config file: %s\n", path);
|
||||
|
||||
while ( fggets(f, line, 250) != NULL ) {
|
||||
// strip trailing newline if it exists
|
||||
len = strlen(line);
|
||||
if ( line[len-1] == '\n' ) {
|
||||
line[len-1] = '\0';
|
||||
}
|
||||
|
||||
result = parse_option(line);
|
||||
if ( result == FG_OPTIONS_ERROR ) {
|
||||
fgPrintf( FG_GENERAL, FG_EXIT,
|
||||
"Config file parse error: %s '%s'\n", path, line );
|
||||
}
|
||||
}
|
||||
|
||||
fgclose(f);
|
||||
return(FG_OPTIONS_OK);
|
||||
}
|
||||
|
||||
|
||||
// Print usage message
|
||||
void fgOPTIONS::usage ( void ) {
|
||||
printf("Usage: fg [ options ... ]\n");
|
||||
|
|
@ -255,6 +395,7 @@ void fgOPTIONS::usage ( void ) {
|
|||
|
||||
printf("General Options:\n");
|
||||
printf("\t--help -h: print usage\n");
|
||||
printf("\t--fg-root=path: specify the root path for all the data files\n");
|
||||
printf("\n");
|
||||
|
||||
printf("Features:\n");
|
||||
|
|
@ -269,6 +410,7 @@ void fgOPTIONS::usage ( void ) {
|
|||
printf("Rendering Options:\n");
|
||||
printf("\t--disable-fog: disable fog/haze\n");
|
||||
printf("\t--enable-fog: enable fog/haze\n");
|
||||
printf("\t--fov=xx.x: specify the field of view angle in degrees\n");
|
||||
printf("\t--disable-fullscreen: disable fullscreen mode\n");
|
||||
printf("\t--enable-fullscreen: enable fullscreen mode\n");
|
||||
printf("\t--shading-flat: enable flat shading\n");
|
||||
|
|
@ -296,6 +438,13 @@ fgOPTIONS::~fgOPTIONS( void ) {
|
|||
|
||||
|
||||
// $Log$
|
||||
// Revision 1.9 1998/05/13 18:29:59 curt
|
||||
// Added a keyboard binding to dynamically adjust field of view.
|
||||
// Added a command line option to specify fov.
|
||||
// Adjusted terrain color.
|
||||
// Root path info moved to fgOPTIONS.
|
||||
// Added ability to parse options out of a config file.
|
||||
//
|
||||
// Revision 1.8 1998/05/07 23:14:16 curt
|
||||
// Added "D" key binding to set autopilot heading.
|
||||
// Made frame rate calculation average out over last 10 frames.
|
||||
|
|
|
|||
|
|
@ -40,6 +40,8 @@
|
|||
class fgOPTIONS {
|
||||
|
||||
public:
|
||||
// The flight gear "root" directory
|
||||
char fg_root[256];
|
||||
|
||||
// ID of initial starting airport
|
||||
char airport_id[5];
|
||||
|
|
@ -49,6 +51,7 @@ public:
|
|||
|
||||
// Rendering options
|
||||
int fog; // Fog enabled/disabled
|
||||
double fov; // Field of View
|
||||
int fullscreen; // Full screen mode enabled/disabled
|
||||
int shading; // shading method, 0 = Flat, 1 = Smooth
|
||||
int skyblend; // Blend sky to haze (using polygons) or just clear
|
||||
|
|
@ -67,8 +70,14 @@ public:
|
|||
// Constructor
|
||||
fgOPTIONS( void );
|
||||
|
||||
// Parse a single option
|
||||
int parse_option( char *arg );
|
||||
|
||||
// Parse the command line options
|
||||
int parse( int argc, char **argv );
|
||||
int parse_command_line( int argc, char **argv );
|
||||
|
||||
// Parse the command line options
|
||||
int parse_config_file( char *path );
|
||||
|
||||
// Print usage message
|
||||
void usage ( void );
|
||||
|
|
@ -86,6 +95,13 @@ extern fgOPTIONS current_options;
|
|||
|
||||
|
||||
// $Log$
|
||||
// Revision 1.7 1998/05/13 18:29:59 curt
|
||||
// Added a keyboard binding to dynamically adjust field of view.
|
||||
// Added a command line option to specify fov.
|
||||
// Adjusted terrain color.
|
||||
// Root path info moved to fgOPTIONS.
|
||||
// Added ability to parse options out of a config file.
|
||||
//
|
||||
// Revision 1.6 1998/05/06 03:16:26 curt
|
||||
// Added an averaged global frame rate counter.
|
||||
// Added an option to control tile radius.
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue