void parsecommandline( int argc, char *argv[] )
{
/* valid option characters; last char MUST be 0 ! */
char optionchar[] = { 'h', 'g', 'x', 'v', 'n', 'a', 'w', 'd', 'A',
'T', 'f', 'W', 'c', 'r', 'p', 0 };
int musthaveparam[] = { 0 , 1, 1, 1, 2, 1, 0, 2, 1,
0, 1, 0, 0, 1, 0, 0 };
int nopts;
int mhp[256];
int isopt[256];
int optchar;
nopts = strlen(optionchar);
if ( nopts > 50 )
{
fprintf(stderr, "\n\nparsecommandline: the option-chars string "
"seems to be\nVERY long (%d bytes) !\n\n", nopts );
exit(-1);
}
fill_n( isopt, 256, 0 );
fill_n( mhp, 256, 0 );
for ( int i = 0; i < nopts; i ++ )
{
if ( isopt[static_cast<int>(optionchar[i])] )
{
fprintf(stderr, "\n\nparsecommandline: Bug: option character '%c'"
" is specified twice in the\n"
"option character array !\n\n", optionchar[i] );
exit(-1);
}
isopt[ static_cast<int>(optionchar[i]) ] = 1;
mhp[ static_cast<int>(optionchar[i])] = musthaveparam[i];
}
++argv; --argc;
while ( argc > 0 )
{
if ( argv[0][0] == '-' )
{
optchar = argv[0][1];
if ( ! isopt[optchar] )
{
fprintf(stderr, "\nIs not a valid command line option\n");
commandlineerror( argv[0], NULL );
}
for ( int i = 0; i < mhp[optchar]; i ++ )
if ( ! argv[1+i] || argv[1+i][0] == '-' )
{
fprintf(stderr, "\nCommand line option -%c must "
"have %d parameter(s)\n",
argv[0][1], mhp[optchar] );
commandlineerror( argv[0], NULL );
argv += 1 + i;
argc -= 1 + i;
continue;
}
switch ( optchar )
{
case 'h': commandlineerror( NULL, NULL); break;
case 'w': With_window = true; break;
case 'T': No_timing = true; break;
case 'W': White_background = true; break;
case 'c': All_collisions = true; break;
case 'x': Complexity = atoi( argv[1] ); break;
case 'a': Rot_vel = atof( argv[1] ); break;
case 'n': Ndistances = atoi( argv[1] );
Nrotations = atoi( argv[2] );
break;
case 'd': Dist_1 = atof( argv[1] );
Dist_2 = atof( argv[2] );
break;
case 'v': for ( unsigned int i = 0; i < strlen(argv[1]); i ++ )
switch ( argv[1][i] )
{
case 'v': col_verbose = true;
break;
case 'b': verbose |= VERBOSE_PRINT;
break;
case 'h': col_verboseShowHulls = true;
break;
default : commandlineerror(argv[0],argv[1]);
}
break;
case 'g': if ( ! strcmp(argv[1],"pl") )
geom_type = OBJ_PLANES;
else
if ( ! strcmp(argv[1],"sh") )
geom_type = OBJ_SPHERES;
else
if ( ! strcmp(argv[1],"to") )
geom_type = OBJ_TORUS;
else
if ( ! strcmp(argv[1],"file") )
geom_type = OBJ_FILE; // just a dummy
else
{
fputs("unrecognized obj type\n",stderr);
commandlineerror(argv[0],argv[1]);
}
break;
case 'A': if ( ! strcmp(argv[1],"do") )
Algorithm = col::ALGO_DOPTREE;
else
if ( ! strcmp(argv[1],"bx") )
Algorithm = col::ALGO_BOXTREE;
else
{
fputs("unrecognized algorithm\n",stderr);
commandlineerror(argv[0],argv[1]);
}
break;
case 'f': loadGeom( argv[1], &fixed_node );
moving_node = fixed_node->clone();
fixed_geom = col::getGeom( fixed_node );
moving_geom = col::getGeom( moving_node );
geom_type = OBJ_FILE;
// post: moving_geom == fixed_geom
break;
case 'r':
configFile = argv[1];
break;
case 'p':
print_pairs = true;
break;
default: fprintf(stderr, "\nBug in parsecommandline !\n");
commandlineerror( argv[0], NULL );
}
argv += 1 + mhp[optchar];
argc -= 1 + mhp[optchar];
}
else
{
/* command line arg doesn't start with '-' */
fprintf(stderr, "\nThis is not a valid command line option\n");
commandlineerror( argv[0], NULL );
/* or, load file instead .. */
}
}
// check sanity of options
if ( Complexity < 1 ||
(geom_type != OBJ_PLANES && Complexity < 3) ||
Complexity > 1000 )
{
fprintf(stderr,"complexity (%u) out of range!\n", Complexity );
exit(-1);
}
if ( Ndistances > MaxNumDistances )
{
fprintf(stderr,"too many (%u) distances!\n", Ndistances );
Ndistances = MaxNumDistances;
}
if ( Ndistances < 1 )
Ndistances = 1;
if ( Rot_vel < col::NearZero )
Rot_vel = 360.0f / Nrotations;
Rot_vel *= 2.0 * 3.1415926535 / 360.0;
if ( Ndistances > 1 )
// Dist_vel will be used like this:
// d = Dist_1 + dist_step * Dist_vel
Dist_vel = (Dist_2 - Dist_1) / (Ndistances - 1);
else
Dist_vel = 0.0;
if ( geom_type == OBJ_FILE &&
(moving_node == osg::NullFC || fixed_node == osg::NullFC) )
{
fputs("bench: '-g file' or '-f' option given,\n"
" but moving node or fixed node is still NULL!", stderr );
exit(-1);
}
}
