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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 1.51 2008/01/13 01:03:23 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 unsigned long sequence = 0;
97 static bool quitting = FALSE;
102 static const char *field;
103 static int length = 16, number = 3;
104 static chtype trail = ' ';
107 static int generation, trace_start, trace_end;
110 static const struct options {
207 onsig(int sig GCC_UNUSED)
210 ExitProgram(EXIT_FAILURE);
216 long r = (rand() & 077777);
217 return ((float) r / 32768.);
221 draw_worm(WINDOW *win, void *data)
223 WORM *w = (WORM *) data;
224 const struct options *op;
230 int bottom = LINES - 1;
235 if ((x = w->xpos[h = w->head]) < 0) {
236 wmove(win, y = w->ypos[h] = bottom, x = w->xpos[h] = 0);
237 waddch(win, w->attrs);
251 if (w->xpos[w->head = h] >= 0) {
257 && --refs[y1][x1] == 0) {
279 : normal))))[w->orientation];
286 w->orientation = op->opts[0];
289 w->orientation = op->opts[(int) (ranf() * (float) op->nopts)];
294 x += xinc[w->orientation];
295 y += yinc[w->orientation];
300 waddch(win, w->attrs);
310 #if !defined(NCURSES_VERSION_PATCH) || (NCURSES_VERSION_PATCH < 20070915)
312 use_window(WINDOW *win, int (*func) (WINDOW *, void *), void *data)
314 return func(win, data);
322 napms(10); /* let the other thread(s) have a chance */
327 start_worm(void *arg)
329 unsigned long compare = 0;
330 while (!quit_worm()) {
331 while (compare < sequence) {
333 use_window(stdscr, draw_worm, arg);
348 static bool first = TRUE;
351 for (n = 0, w = &worm[0]; n < number; n++, w++) {
353 rc = pthread_create(&(w->thread), NULL, start_worm, w);
357 for (n = 0, w = &worm[0]; n < number; n++, w++) {
358 if (use_window(stdscr, draw_worm, w))
366 main(int argc, char *argv[])
375 setlocale(LC_ALL, "");
377 for (x = 1; x < argc; x++) {
389 if ((length = atoi(argv[x])) < 2 || length > 1024) {
390 fprintf(stderr, "%s: Invalid length\n", *argv);
391 ExitProgram(EXIT_FAILURE);
397 if ((number = atoi(argv[x])) < 1 || number > 40) {
398 fprintf(stderr, "%s: Invalid number of worms\n", *argv);
399 ExitProgram(EXIT_FAILURE);
407 trace_start = atoi(argv[++x]);
408 trace_end = atoi(argv[++x]);
411 _nc_optimize_enable ^= OPTIMIZE_ALL; /* declared by ncurses */
417 "usage: %s [-field] [-length #] [-number #] [-trail]\n", *argv);
418 ExitProgram(EXIT_FAILURE);
422 signal(SIGINT, onsig);
435 int bg = COLOR_BLACK;
437 #if HAVE_USE_DEFAULT_COLORS
438 if (use_default_colors() == OK)
442 #define SET_COLOR(num, fg) \
443 init_pair(num+1, fg, bg); \
444 flavor[num] |= COLOR_PAIR(num+1) | A_BOLD
446 SET_COLOR(0, COLOR_GREEN);
447 SET_COLOR(1, COLOR_RED);
448 SET_COLOR(2, COLOR_CYAN);
449 SET_COLOR(3, COLOR_WHITE);
450 SET_COLOR(4, COLOR_MAGENTA);
451 SET_COLOR(5, COLOR_BLUE);
452 SET_COLOR(6, COLOR_YELLOW);
456 refs = typeMalloc(short *, LINES);
457 for (y = 0; y < LINES; y++) {
458 refs[y] = typeMalloc(short, COLS);
459 for (x = 0; x < COLS; x++) {
465 /* if addressing the lower right corner doesn't work in your curses */
466 refs[bottom][last] = 1;
467 #endif /* BADCORNER */
469 for (n = number, w = &worm[0]; --n >= 0; w++) {
470 w->attrs = flavor[n % SIZEOF(flavor)];
474 if (!(ip = typeMalloc(short, (length + 1)))) {
475 fprintf(stderr, "%s: out of memory\n", *argv);
476 ExitProgram(EXIT_FAILURE);
479 for (x = length; --x >= 0;)
481 if (!(ip = typeMalloc(short, (length + 1)))) {
482 fprintf(stderr, "%s: out of memory\n", *argv);
483 ExitProgram(EXIT_FAILURE);
486 for (y = length; --y >= 0;)
492 for (y = bottom; --y >= 0;) {
493 for (x = COLS; --x >= 0;) {
494 addch((chtype) (*p++));
501 nodelay(stdscr, TRUE);
507 if ((ch = getch()) > 0) {
509 if (trace_start || trace_end) {
510 if (generation == trace_start) {
513 } else if (generation == trace_end) {
522 if (ch == KEY_RESIZE) {
523 if (last != COLS - 1) {
524 for (y = 0; y <= bottom; y++) {
525 refs[y] = typeRealloc(short, COLS, refs[y]);
526 for (x = last + 1; x < COLS; x++)
531 if (bottom != LINES - 1) {
532 for (y = LINES; y <= bottom; y++)
534 refs = typeRealloc(short *, LINES, refs);
535 for (y = bottom + 1; y < LINES; y++) {
536 refs[y] = typeMalloc(short, COLS);
537 for (x = 0; x < COLS; x++)
545 * Make it simple to put this into single-step mode, or resume
546 * normal operation -T.Dickey
552 } else if (ch == 's') {
553 nodelay(stdscr, FALSE);
554 } else if (ch == ' ') {
555 nodelay(stdscr, TRUE);
559 done = draw_all_worms();
566 for (y = 0; y < LINES; y++) {
570 for (n = number, w = &worm[0]; --n >= 0; w++) {
577 * Do this just in case one of the threads did not really exit.
579 for (n = 0; n < number; n++) {
580 pthread_join(worm[n].thread, NULL);
583 ExitProgram(EXIT_SUCCESS);