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reflect_velocities.C

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//   Piet Hut, Nov. 1994

#include "dyn.h"

#ifdef TOOLBOX

local void  flip_velocities(dyn * b)
{
    dyn * bi;

    b->scale_vel(-1);

    for (bi=b->get_oldest_daughter(); bi != NULL; bi=bi->get_younger_sister())
        bi->scale_vel(-1);
}


main(int argc, char ** argv)
{
    bool  c_flag = FALSE;
    char  *comment;

    check_help();

    extern char *poptarg;
    int c;
    char* param_string = "c:";

    while ((c = pgetopt(argc, argv, param_string)) != -1)
        switch(c) {

            case 'c': c_flag = TRUE;
                      comment = poptarg;
                      break;
            case '?': params_to_usage(cerr, argv[0], param_string);
                      get_help();
                      exit(1);
        }            

    dyn *b;

    while (b = get_dyn(cin)) {

        if (c_flag == TRUE)
            b->log_comment(comment);
        b->log_history(argc, argv);

        flip_velocities(b);
        put_dyn(cout, *b);      
        delete b;
    }
}

#endif

// end of: reflect_velocities.C

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