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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 1.63 2013/01/13 01:00:11 tom Exp $
67 #include <test.priv.h>
76 #define MAX_LENGTH 1024
78 static chtype flavor[] =
80 'O', '*', '#', '$', '%', '0', '@',
82 static const int xinc[] =
84 1, 1, 1, 0, -1, -1, -1, 0
87 -1, 0, 1, 1, 1, 0, -1, -1
101 static unsigned long sequence = 0;
102 static bool quitting = FALSE;
104 static WORM worm[MAX_WORMS];
106 static int last_x, last_y;
108 static const char *field;
109 static int length = 16, number = 3;
110 static chtype trail = ' ';
112 static unsigned pending;
114 static int generation, trace_start, trace_end;
117 static const struct options {
205 failed(const char *s)
209 ExitProgram(EXIT_FAILURE);
215 USING_WINDOW(stdscr, wrefresh);
221 onsig(int sig GCC_UNUSED)
224 ExitProgram(EXIT_FAILURE);
230 long r = (rand() & 077777);
231 return ((double) r / 32768.);
235 draw_worm(WINDOW *win, void *data)
237 WORM *w = (WORM *) data;
238 const struct options *op;
239 unsigned mask = (unsigned) (~(1 << (w - worm)));
240 chtype attrs = w->attrs | ((mask & pending) ? A_REVERSE : 0);
248 if ((x = w->xpos[h = w->head]) < 0) {
249 wmove(win, y = w->ypos[h] = last_y, x = w->xpos[h] = 0);
264 if (w->xpos[w->head = h] >= 0) {
270 && --refs[y1][x1] == 0) {
292 : normal))))[w->orientation];
299 w->orientation = op->opts[0];
302 w->orientation = op->opts[(int) (ranf() * (double) op->nopts)];
307 x += xinc[w->orientation];
308 y += yinc[w->orientation];
325 quit_worm(int bitnum)
327 pending |= (1 << bitnum);
328 napms(10); /* let the other thread(s) have a chance */
329 pending &= ~(1 << bitnum);
334 start_worm(void *arg)
336 unsigned long compare = 0;
337 Trace(("start_worm"));
338 while (!quit_worm(((struct worm *) arg) - worm)) {
339 while (compare < sequence) {
342 use_window(stdscr, draw_worm, arg);
344 draw_worm(stdscr, arg);
348 Trace(("...start_worm (done)"));
361 static bool first = TRUE;
364 for (n = 0, w = &worm[0]; n < number; n++, w++) {
366 rc = pthread_create(&(w->thread), NULL, start_worm, w);
370 for (n = 0, w = &worm[0]; n < number; n++, w++) {
373 USING_WINDOW2(stdscr, draw_worm, w)
388 ch = USING_WINDOW(stdscr, wgetch);
394 update_refs(WINDOW *win)
399 if (last_x != COLS - 1) {
400 for (y = 0; y <= last_y; y++) {
401 refs[y] = typeRealloc(int, (size_t) COLS, refs[y]);
403 failed("update_refs");
404 for (x = last_x + 1; x < COLS; x++)
409 if (last_y != LINES - 1) {
410 for (y = LINES; y <= last_y; y++)
412 refs = typeRealloc(int *, (size_t) LINES, refs);
413 for (y = last_y + 1; y < LINES; y++) {
414 refs[y] = typeMalloc(int, (size_t) COLS);
416 failed("update_refs");
417 for (x = 0; x < COLS; x++)
427 main(int argc, char *argv[])
436 setlocale(LC_ALL, "");
438 for (x = 1; x < argc; x++) {
450 if ((length = atoi(argv[x])) < 2 || length > MAX_LENGTH) {
451 fprintf(stderr, "%s: Invalid length\n", *argv);
452 ExitProgram(EXIT_FAILURE);
458 if ((number = atoi(argv[x])) < 1 || number > MAX_WORMS) {
459 fprintf(stderr, "%s: Invalid number of worms\n", *argv);
460 ExitProgram(EXIT_FAILURE);
468 trace_start = atoi(argv[++x]);
469 trace_end = atoi(argv[++x]);
472 _nc_optimize_enable ^= OPTIMIZE_ALL; /* declared by ncurses */
478 "usage: %s [-field] [-length #] [-number #] [-trail]\n", *argv);
479 ExitProgram(EXIT_FAILURE);
483 signal(SIGINT, onsig);
496 int bg = COLOR_BLACK;
498 #if HAVE_USE_DEFAULT_COLORS
499 if (use_default_colors() == OK)
503 #define SET_COLOR(num, fg) \
504 init_pair(num+1, (short) fg, (short) bg); \
505 flavor[num] |= (chtype) COLOR_PAIR(num+1) | A_BOLD
507 SET_COLOR(0, COLOR_GREEN);
508 SET_COLOR(1, COLOR_RED);
509 SET_COLOR(2, COLOR_CYAN);
510 SET_COLOR(3, COLOR_WHITE);
511 SET_COLOR(4, COLOR_MAGENTA);
512 SET_COLOR(5, COLOR_BLUE);
513 SET_COLOR(6, COLOR_YELLOW);
518 refs = typeMalloc(int *, (size_t) max_refs);
519 for (y = 0; y < max_refs; y++) {
520 refs[y] = typeMalloc(int, (size_t) COLS);
521 for (x = 0; x < COLS; x++) {
527 /* if addressing the lower right corner doesn't work in your curses */
528 refs[last_y][last_x] = 1;
529 #endif /* BADCORNER */
531 for (n = number, w = &worm[0]; --n >= 0; w++) {
532 w->attrs = flavor[(unsigned) n % SIZEOF(flavor)];
536 if (!(ip = typeMalloc(int, (size_t) (length + 1)))) {
537 fprintf(stderr, "%s: out of memory\n", *argv);
538 ExitProgram(EXIT_FAILURE);
541 for (x = length; --x >= 0;)
543 if (!(ip = typeMalloc(int, (size_t) (length + 1)))) {
544 fprintf(stderr, "%s: out of memory\n", *argv);
545 ExitProgram(EXIT_FAILURE);
548 for (y = length; --y >= 0;)
554 for (y = last_y; --y >= 0;) {
555 for (x = COLS; --x >= 0;) {
556 addch((chtype) (*p++));
562 USING_WINDOW(stdscr, wrefresh);
563 nodelay(stdscr, TRUE);
569 if ((ch = get_input()) > 0) {
571 if (trace_start || trace_end) {
572 if (generation == trace_start) {
575 } else if (generation == trace_end) {
585 if (ch == KEY_RESIZE) {
586 USING_WINDOW(stdscr, update_refs);
591 * Make it simple to put this into single-step mode, or resume
592 * normal operation -T.Dickey
598 } else if (ch == 's') {
599 nodelay(stdscr, FALSE);
600 } else if (ch == ' ') {
601 nodelay(stdscr, TRUE);
605 done = draw_all_worms();
607 USING_WINDOW(stdscr, wrefresh);
613 for (y = 0; y < max_refs; y++) {
617 for (n = number, w = &worm[0]; --n >= 0; w++) {
624 * Do this just in case one of the threads did not really exit.
626 Trace(("join all threads"));
627 for (n = 0; n < number; n++) {
628 pthread_join(worm[n].thread, NULL);
631 ExitProgram(EXIT_SUCCESS);