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41 Caltech High Energy Physics
44 Hacks to turn this into a test frame for cursor movement:
45 Eric S. Raymond <esr@snark.thyrsus.com>
48 July 1995 (esr): worms is now in living color! :-)
51 -f fill screen with copies of 'WORM' at start.
52 -l <n> set worm length
53 -n <n> set number of worms
54 -t make worms leave droppings
55 -T <start> <end> set trace interval
56 -S set single-stepping during trace interval
57 -N suppress cursor-movement optimization
59 This program makes a good torture-test for the ncurses cursor-optimization
60 code. You can use -T to set the worm move interval over which movement
61 traces will be dumped. The program stops and waits for one character of
62 input at the beginning and end of the interval.
64 $Id: worm.c,v 1.50 2007/12/22 23:55:13 tom Exp $
67 #include <test.priv.h>
73 static chtype flavor[] =
75 'O', '*', '#', '$', '%', '0', '@',
77 static const short xinc[] =
79 1, 1, 1, 0, -1, -1, -1, 0
82 -1, 0, 1, 1, 1, 0, -1, -1
96 static bool quitting = FALSE;
101 static const char *field;
102 static int length = 16, number = 3;
103 static chtype trail = ' ';
106 static int generation, trace_start, trace_end;
109 static const struct options {
206 onsig(int sig GCC_UNUSED)
209 ExitProgram(EXIT_FAILURE);
215 long r = (rand() & 077777);
216 return ((float) r / 32768.);
220 draw_worm(WINDOW *win, void *data)
222 WORM *w = (WORM *) data;
223 const struct options *op;
229 int bottom = LINES - 1;
234 if ((x = w->xpos[h = w->head]) < 0) {
235 wmove(win, y = w->ypos[h] = bottom, x = w->xpos[h] = 0);
236 waddch(win, w->attrs);
250 if (w->xpos[w->head = h] >= 0) {
256 && --refs[y1][x1] == 0) {
278 : normal))))[w->orientation];
285 w->orientation = op->opts[0];
288 w->orientation = op->opts[(int) (ranf() * (float) op->nopts)];
293 x += xinc[w->orientation];
294 y += yinc[w->orientation];
299 waddch(win, w->attrs);
309 #if !defined(NCURSES_VERSION_PATCH) || (NCURSES_VERSION_PATCH < 20070915)
311 use_window(WINDOW *win, int (*func) (WINDOW *, void *), void *data)
313 return func(win, data);
321 napms(20); /* let the other thread(s) have a chance */
326 start_worm(void *arg)
328 while (!quit_worm()) {
329 use_window(stdscr, draw_worm, arg);
343 static bool first = TRUE;
346 for (n = 0, w = &worm[0]; n < number; n++, w++) {
348 rc = pthread_create(&(w->thread), NULL, start_worm, w);
352 for (n = 0, w = &worm[0]; n < number; n++, w++) {
353 if (use_window(stdscr, draw_worm, w))
361 main(int argc, char *argv[])
370 setlocale(LC_ALL, "");
372 for (x = 1; x < argc; x++) {
384 if ((length = atoi(argv[x])) < 2 || length > 1024) {
385 fprintf(stderr, "%s: Invalid length\n", *argv);
386 ExitProgram(EXIT_FAILURE);
392 if ((number = atoi(argv[x])) < 1 || number > 40) {
393 fprintf(stderr, "%s: Invalid number of worms\n", *argv);
394 ExitProgram(EXIT_FAILURE);
402 trace_start = atoi(argv[++x]);
403 trace_end = atoi(argv[++x]);
406 _nc_optimize_enable ^= OPTIMIZE_ALL; /* declared by ncurses */
412 "usage: %s [-field] [-length #] [-number #] [-trail]\n", *argv);
413 ExitProgram(EXIT_FAILURE);
417 signal(SIGINT, onsig);
430 int bg = COLOR_BLACK;
432 #if HAVE_USE_DEFAULT_COLORS
433 if (use_default_colors() == OK)
437 #define SET_COLOR(num, fg) \
438 init_pair(num+1, fg, bg); \
439 flavor[num] |= COLOR_PAIR(num+1) | A_BOLD
441 SET_COLOR(0, COLOR_GREEN);
442 SET_COLOR(1, COLOR_RED);
443 SET_COLOR(2, COLOR_CYAN);
444 SET_COLOR(3, COLOR_WHITE);
445 SET_COLOR(4, COLOR_MAGENTA);
446 SET_COLOR(5, COLOR_BLUE);
447 SET_COLOR(6, COLOR_YELLOW);
451 refs = typeMalloc(short *, LINES);
452 for (y = 0; y < LINES; y++) {
453 refs[y] = typeMalloc(short, COLS);
454 for (x = 0; x < COLS; x++) {
460 /* if addressing the lower right corner doesn't work in your curses */
461 refs[bottom][last] = 1;
462 #endif /* BADCORNER */
464 for (n = number, w = &worm[0]; --n >= 0; w++) {
465 w->attrs = flavor[n % SIZEOF(flavor)];
469 if (!(ip = typeMalloc(short, (length + 1)))) {
470 fprintf(stderr, "%s: out of memory\n", *argv);
471 ExitProgram(EXIT_FAILURE);
474 for (x = length; --x >= 0;)
476 if (!(ip = typeMalloc(short, (length + 1)))) {
477 fprintf(stderr, "%s: out of memory\n", *argv);
478 ExitProgram(EXIT_FAILURE);
481 for (y = length; --y >= 0;)
487 for (y = bottom; --y >= 0;) {
488 for (x = COLS; --x >= 0;) {
489 addch((chtype) (*p++));
497 nodelay(stdscr, TRUE);
502 if ((ch = getch()) > 0) {
504 if (trace_start || trace_end) {
505 if (generation == trace_start) {
508 } else if (generation == trace_end) {
517 if (ch == KEY_RESIZE) {
518 if (last != COLS - 1) {
519 for (y = 0; y <= bottom; y++) {
520 refs[y] = typeRealloc(short, COLS, refs[y]);
521 for (x = last + 1; x < COLS; x++)
526 if (bottom != LINES - 1) {
527 for (y = LINES; y <= bottom; y++)
529 refs = typeRealloc(short *, LINES, refs);
530 for (y = bottom + 1; y < LINES; y++) {
531 refs[y] = typeMalloc(short, COLS);
532 for (x = 0; x < COLS; x++)
540 * Make it simple to put this into single-step mode, or resume
541 * normal operation -T.Dickey
547 } else if (ch == 's') {
548 nodelay(stdscr, FALSE);
549 } else if (ch == ' ') {
550 nodelay(stdscr, TRUE);
554 done = draw_all_worms();
561 for (y = 0; y < LINES; y++) {
565 for (n = number, w = &worm[0]; --n >= 0; w++) {
572 * Do this just in case one of the threads did not really exit.
574 for (n = 0; n < number; n++) {
575 pthread_join(worm[n].thread, NULL);
578 ExitProgram(EXIT_SUCCESS);