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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 1.55 2008/01/26 22:07:57 tom Exp $
67 #include <test.priv.h>
76 #define MAX_LENGTH 1024
78 static chtype flavor[] =
80 'O', '*', '#', '$', '%', '0', '@',
82 static const short 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 = ' ';
113 static int generation, trace_start, trace_end;
116 static const struct options {
206 USING_WINDOW(stdscr, wrefresh);
212 onsig(int sig GCC_UNUSED)
215 ExitProgram(EXIT_FAILURE);
221 long r = (rand() & 077777);
222 return ((float) r / 32768.);
226 draw_worm(WINDOW *win, void *data)
228 WORM *w = (WORM *) data;
229 const struct options *op;
237 if ((x = w->xpos[h = w->head]) < 0) {
238 wmove(win, y = w->ypos[h] = last_y, x = w->xpos[h] = 0);
239 waddch(win, w->attrs);
253 if (w->xpos[w->head = h] >= 0) {
259 && --refs[y1][x1] == 0) {
281 : normal))))[w->orientation];
288 w->orientation = op->opts[0];
291 w->orientation = op->opts[(int) (ranf() * (float) op->nopts)];
296 x += xinc[w->orientation];
297 y += yinc[w->orientation];
302 waddch(win, w->attrs);
316 napms(10); /* let the other thread(s) have a chance */
321 start_worm(void *arg)
323 unsigned long compare = 0;
324 while (!quit_worm()) {
325 while (compare < sequence) {
327 use_window(stdscr, draw_worm, arg);
342 static bool first = TRUE;
345 for (n = 0, w = &worm[0]; n < number; n++, w++) {
347 rc = pthread_create(&(w->thread), NULL, start_worm, w);
351 for (n = 0, w = &worm[0]; n < number; n++, w++) {
352 if (use_window(stdscr, draw_worm, w))
363 ch = USING_WINDOW(stdscr, wgetch);
369 update_refs(WINDOW *win)
374 if (last_x != COLS - 1) {
375 for (y = 0; y <= last_y; y++) {
376 refs[y] = typeRealloc(short, COLS, refs[y]);
377 for (x = last_x + 1; x < COLS; x++)
382 if (last_y != LINES - 1) {
383 for (y = LINES; y <= last_y; y++)
385 refs = typeRealloc(short *, LINES, refs);
386 for (y = last_y + 1; y < LINES; y++) {
387 refs[y] = typeMalloc(short, COLS);
388 for (x = 0; x < COLS; x++)
398 main(int argc, char *argv[])
406 setlocale(LC_ALL, "");
408 for (x = 1; x < argc; x++) {
420 if ((length = atoi(argv[x])) < 2 || length > MAX_LENGTH) {
421 fprintf(stderr, "%s: Invalid length\n", *argv);
422 ExitProgram(EXIT_FAILURE);
428 if ((number = atoi(argv[x])) < 1 || number > MAX_WORMS) {
429 fprintf(stderr, "%s: Invalid number of worms\n", *argv);
430 ExitProgram(EXIT_FAILURE);
438 trace_start = atoi(argv[++x]);
439 trace_end = atoi(argv[++x]);
442 _nc_optimize_enable ^= OPTIMIZE_ALL; /* declared by ncurses */
448 "usage: %s [-field] [-length #] [-number #] [-trail]\n", *argv);
449 ExitProgram(EXIT_FAILURE);
453 signal(SIGINT, onsig);
466 int bg = COLOR_BLACK;
468 #if HAVE_USE_DEFAULT_COLORS
469 if (use_default_colors() == OK)
473 #define SET_COLOR(num, fg) \
474 init_pair(num+1, fg, bg); \
475 flavor[num] |= COLOR_PAIR(num+1) | A_BOLD
477 SET_COLOR(0, COLOR_GREEN);
478 SET_COLOR(1, COLOR_RED);
479 SET_COLOR(2, COLOR_CYAN);
480 SET_COLOR(3, COLOR_WHITE);
481 SET_COLOR(4, COLOR_MAGENTA);
482 SET_COLOR(5, COLOR_BLUE);
483 SET_COLOR(6, COLOR_YELLOW);
487 refs = typeMalloc(short *, LINES);
488 for (y = 0; y < LINES; y++) {
489 refs[y] = typeMalloc(short, COLS);
490 for (x = 0; x < COLS; x++) {
496 /* if addressing the lower right corner doesn't work in your curses */
497 refs[last_y][last_x] = 1;
498 #endif /* BADCORNER */
500 for (n = number, w = &worm[0]; --n >= 0; w++) {
501 w->attrs = flavor[n % SIZEOF(flavor)];
505 if (!(ip = typeMalloc(short, (length + 1)))) {
506 fprintf(stderr, "%s: out of memory\n", *argv);
507 ExitProgram(EXIT_FAILURE);
510 for (x = length; --x >= 0;)
512 if (!(ip = typeMalloc(short, (length + 1)))) {
513 fprintf(stderr, "%s: out of memory\n", *argv);
514 ExitProgram(EXIT_FAILURE);
517 for (y = length; --y >= 0;)
523 for (y = last_y; --y >= 0;) {
524 for (x = COLS; --x >= 0;) {
525 addch((chtype) (*p++));
531 USING_WINDOW(stdscr, wrefresh);
532 nodelay(stdscr, TRUE);
538 if ((ch = get_input()) > 0) {
540 if (trace_start || trace_end) {
541 if (generation == trace_start) {
544 } else if (generation == trace_end) {
554 if (ch == KEY_RESIZE) {
555 USING_WINDOW(stdscr, update_refs);
560 * Make it simple to put this into single-step mode, or resume
561 * normal operation -T.Dickey
567 } else if (ch == 's') {
568 nodelay(stdscr, FALSE);
569 } else if (ch == ' ') {
570 nodelay(stdscr, TRUE);
574 done = draw_all_worms();
576 USING_WINDOW(stdscr, wrefresh);
581 for (y = 0; y < LINES; y++) {
585 for (n = number, w = &worm[0]; --n >= 0; w++) {
592 * Do this just in case one of the threads did not really exit.
594 for (n = 0; n < number; n++) {
595 pthread_join(worm[n].thread, NULL);
598 ExitProgram(EXIT_SUCCESS);