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makewrite.C

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#include "dyn.h"
#include <ctype.h>

#ifdef TOOLBOX

#define  LENGTH_SCALE_FACTOR   0.1
#define  LEFT_OFFSET           -20
#define  TOP_OFFSET             -5

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

    real v_rand = 0;

    int input_seed, actual_seed;
    bool s_flag = false;

    check_help();
 
    extern char *poptarg;
    int c;
    char* param_string = "c:v:s:";

    while ((c = pgetopt(argc, argv, param_string)) != -1)
        switch(c) {
            case 'c': c_flag = true;
                      comment = poptarg;
                      break;
            case 's': s_flag = true;
                      input_seed = atoi(poptarg);
                      break;
            case 'v': v_rand = atof(poptarg);
                      break;
            case '?': params_to_usage(cerr, argv[0], param_string);
                      get_help();
                      exit(1);
        }            
    
    if (!s_flag) input_seed = 0;
    actual_seed = srandinter(input_seed);

    dyn *b, *by, *bo;
    b = new dyn();
    bo = new dyn();
    b->set_oldest_daughter(bo);
    bo->set_parent(b);

    int j = TOP_OFFSET;         // x
    int i = LEFT_OFFSET;        // y
    int indx = 0;
    int n = 0;

    // Banner writes from top to bottom.  Want to translate this
    // into left to right.

    c = getchar();
    while(c != EOF) {
        while (c != '\n' && c != EOF) {
            if (!isspace(c)) {

                n++;
                bo->set_pos(vector(j*LENGTH_SCALE_FACTOR,
                                   i*LENGTH_SCALE_FACTOR, 0));
                bo->set_vel(v_rand*vector(randinter(-1,1),
                                          randinter(-1,1),
                                          randinter(-1,1)));

                bo->set_label(++indx);

                by = new dyn();
                bo->set_younger_sister(by);
                by->set_elder_sister(bo);
                bo = by;
            }
            i++;                // i (= y) increases with each character
            c = getchar();
        }
        j++;                    // j (= x) increases with each new line
        i = LEFT_OFFSET;
        if (c != EOF)
            c = getchar();
    }

    bo = bo->get_elder_sister();
    delete by;
    bo->set_younger_sister(NULL);

    for_all_daughters(dyn, b, bb)
        bb->set_mass(1.0/n);
    
    if (c_flag == TRUE)
        b->log_comment(comment);
    b->log_history(argc, argv);

    b->to_com();
    put_node(cout, *b);
}

#endif

/* end of: mkwrite.c */

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