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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 1.58 2008/10/04 21:54:09 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 = ' ';
112 static unsigned pending;
114 static int generation, trace_start, trace_end;
117 static const struct options {
207 USING_WINDOW(stdscr, wrefresh);
213 onsig(int sig GCC_UNUSED)
216 ExitProgram(EXIT_FAILURE);
222 long r = (rand() & 077777);
223 return ((float) r / 32768.);
227 draw_worm(WINDOW *win, void *data)
229 WORM *w = (WORM *) data;
230 const struct options *op;
231 unsigned mask = ~(1 << (w - worm));
232 chtype attrs = w->attrs | ((mask & pending) ? A_REVERSE : 0);
240 if ((x = w->xpos[h = w->head]) < 0) {
241 wmove(win, y = w->ypos[h] = last_y, x = w->xpos[h] = 0);
256 if (w->xpos[w->head = h] >= 0) {
262 && --refs[y1][x1] == 0) {
284 : normal))))[w->orientation];
291 w->orientation = op->opts[0];
294 w->orientation = op->opts[(int) (ranf() * (float) op->nopts)];
299 x += xinc[w->orientation];
300 y += yinc[w->orientation];
317 quit_worm(int bitnum)
319 pending |= (1 << bitnum);
320 napms(10); /* let the other thread(s) have a chance */
321 pending &= ~(1 << bitnum);
326 start_worm(void *arg)
328 unsigned long compare = 0;
329 Trace(("start_worm"));
330 while (!quit_worm(((struct worm *) arg) - worm)) {
331 while (compare < sequence) {
333 use_window(stdscr, draw_worm, arg);
336 Trace(("...start_worm (done)"));
349 static bool first = TRUE;
352 for (n = 0, w = &worm[0]; n < number; n++, w++) {
354 rc = pthread_create(&(w->thread), NULL, start_worm, w);
358 for (n = 0, w = &worm[0]; n < number; n++, w++) {
359 if (USING_WINDOW2(stdscr, draw_worm, w))
370 ch = USING_WINDOW(stdscr, wgetch);
376 update_refs(WINDOW *win)
381 if (last_x != COLS - 1) {
382 for (y = 0; y <= last_y; y++) {
383 refs[y] = typeRealloc(short, COLS, refs[y]);
384 for (x = last_x + 1; x < COLS; x++)
389 if (last_y != LINES - 1) {
390 for (y = LINES; y <= last_y; y++)
392 refs = typeRealloc(short *, LINES, refs);
393 for (y = last_y + 1; y < LINES; y++) {
394 refs[y] = typeMalloc(short, COLS);
395 for (x = 0; x < COLS; x++)
405 main(int argc, char *argv[])
413 setlocale(LC_ALL, "");
415 for (x = 1; x < argc; x++) {
427 if ((length = atoi(argv[x])) < 2 || length > MAX_LENGTH) {
428 fprintf(stderr, "%s: Invalid length\n", *argv);
429 ExitProgram(EXIT_FAILURE);
435 if ((number = atoi(argv[x])) < 1 || number > MAX_WORMS) {
436 fprintf(stderr, "%s: Invalid number of worms\n", *argv);
437 ExitProgram(EXIT_FAILURE);
445 trace_start = atoi(argv[++x]);
446 trace_end = atoi(argv[++x]);
449 _nc_optimize_enable ^= OPTIMIZE_ALL; /* declared by ncurses */
455 "usage: %s [-field] [-length #] [-number #] [-trail]\n", *argv);
456 ExitProgram(EXIT_FAILURE);
460 signal(SIGINT, onsig);
473 int bg = COLOR_BLACK;
475 #if HAVE_USE_DEFAULT_COLORS
476 if (use_default_colors() == OK)
480 #define SET_COLOR(num, fg) \
481 init_pair(num+1, fg, bg); \
482 flavor[num] |= COLOR_PAIR(num+1) | A_BOLD
484 SET_COLOR(0, COLOR_GREEN);
485 SET_COLOR(1, COLOR_RED);
486 SET_COLOR(2, COLOR_CYAN);
487 SET_COLOR(3, COLOR_WHITE);
488 SET_COLOR(4, COLOR_MAGENTA);
489 SET_COLOR(5, COLOR_BLUE);
490 SET_COLOR(6, COLOR_YELLOW);
494 refs = typeMalloc(short *, LINES);
495 for (y = 0; y < LINES; y++) {
496 refs[y] = typeMalloc(short, COLS);
497 for (x = 0; x < COLS; x++) {
503 /* if addressing the lower right corner doesn't work in your curses */
504 refs[last_y][last_x] = 1;
505 #endif /* BADCORNER */
507 for (n = number, w = &worm[0]; --n >= 0; w++) {
508 w->attrs = flavor[n % SIZEOF(flavor)];
512 if (!(ip = typeMalloc(short, (length + 1)))) {
513 fprintf(stderr, "%s: out of memory\n", *argv);
514 ExitProgram(EXIT_FAILURE);
517 for (x = length; --x >= 0;)
519 if (!(ip = typeMalloc(short, (length + 1)))) {
520 fprintf(stderr, "%s: out of memory\n", *argv);
521 ExitProgram(EXIT_FAILURE);
524 for (y = length; --y >= 0;)
530 for (y = last_y; --y >= 0;) {
531 for (x = COLS; --x >= 0;) {
532 addch((chtype) (*p++));
538 USING_WINDOW(stdscr, wrefresh);
539 nodelay(stdscr, TRUE);
545 if ((ch = get_input()) > 0) {
547 if (trace_start || trace_end) {
548 if (generation == trace_start) {
551 } else if (generation == trace_end) {
561 if (ch == KEY_RESIZE) {
562 USING_WINDOW(stdscr, update_refs);
567 * Make it simple to put this into single-step mode, or resume
568 * normal operation -T.Dickey
574 } else if (ch == 's') {
575 nodelay(stdscr, FALSE);
576 } else if (ch == ' ') {
577 nodelay(stdscr, TRUE);
581 done = draw_all_worms();
583 USING_WINDOW(stdscr, wrefresh);
589 for (y = 0; y < LINES; y++) {
593 for (n = number, w = &worm[0]; --n >= 0; w++) {
600 * Do this just in case one of the threads did not really exit.
602 Trace(("join all threads"));
603 for (n = 0; n < number; n++) {
604 pthread_join(worm[n].thread, NULL);
607 ExitProgram(EXIT_SUCCESS);