diff options
Diffstat (limited to 'payloads/libpayload/curses/PDCurses-3.4/demos/worm.c')
| -rw-r--r-- | payloads/libpayload/curses/PDCurses-3.4/demos/worm.c | 434 |
1 files changed, 434 insertions, 0 deletions
diff --git a/payloads/libpayload/curses/PDCurses-3.4/demos/worm.c b/payloads/libpayload/curses/PDCurses-3.4/demos/worm.c new file mode 100644 index 0000000000..5a823f9069 --- /dev/null +++ b/payloads/libpayload/curses/PDCurses-3.4/demos/worm.c @@ -0,0 +1,434 @@ +/**************************************************************************** + * Copyright (c) 2005 Free Software Foundation, Inc. * + * * + * Permission is hereby granted, free of charge, to any person obtaining a * + * copy of this software and associated documentation files (the * + * "Software"), to deal in the Software without restriction, including * + * without limitation the rights to use, copy, modify, merge, publish, * + * distribute, distribute with modifications, sublicense, and/or sell * + * copies of the Software, and to permit persons to whom the Software is * + * furnished to do so, subject to the following conditions: * + * * + * The above copyright notice and this permission notice shall be included * + * in all copies or substantial portions of the Software. * + * * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * + * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/* + + @@@ @@@ @@@@@@@@@@ @@@@@@@@@@@ @@@@@@@@@@@@ + @@@ @@@ @@@@@@@@@@@@ @@@@@@@@@@@@ @@@@@@@@@@@@@ + @@@ @@@ @@@@ @@@@ @@@@ @@@@ @@@ @@@@ + @@@ @@ @@@ @@@ @@@ @@@ @@@ @@@ @@@ + @@@ @@@@ @@@ @@@ @@@ @@@ @@@ @@@ @@@ + @@@@ @@@@ @@@@ @@@ @@@ @@@ @@@ @@@ @@@ + @@@@@@@@@@@@ @@@@ @@@@ @@@ @@@ @@@ @@@ + @@@@ @@@@ @@@@@@@@@@@@ @@@ @@@ @@@ @@@ + @@ @@ @@@@@@@@@@ @@@ @@@ @@@ @@@ + + Eric P. Scott + Caltech High Energy Physics + October, 1980 + + Color by Eric S. Raymond + July, 1995 + +Options: + -f fill screen with copies of 'WORM' at start. + -l <n> set worm length + -n <n> set number of worms + -t make worms leave droppings + + $Id: worm.c,v 1.16 2008/07/13 16:08:17 wmcbrine Exp $ +*/ + +#include <curses.h> +#include <stdlib.h> +#include <time.h> + +#define FLAVORS 7 + +static chtype flavor[FLAVORS] = +{ + 'O', '*', '#', '$', '%', '0', '@' +}; + +static const short xinc[] = +{ + 1, 1, 1, 0, -1, -1, -1, 0 +}, +yinc[] = +{ + -1, 0, 1, 1, 1, 0, -1, -1 +}; + +static struct worm +{ + int orientation, head; + short *xpos, *ypos; +} worm[40]; + +static const char *field; +static int length = 16, number = 3; +static chtype trail = ' '; + +static const struct options +{ + int nopts; + int opts[3]; +} normal[8] = +{ + { 3, { 7, 0, 1 } }, { 3, { 0, 1, 2 } }, { 3, { 1, 2, 3 } }, + { 3, { 2, 3, 4 } }, { 3, { 3, 4, 5 } }, { 3, { 4, 5, 6 } }, + { 3, { 5, 6, 7 } }, { 3, { 6, 7, 0 } } +}, +upper[8] = +{ + { 1, { 1, 0, 0 } }, { 2, { 1, 2, 0 } }, { 0, { 0, 0, 0 } }, + { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, { 2, { 4, 5, 0 } }, + { 1, { 5, 0, 0 } }, { 2, { 1, 5, 0 } } +}, +left[8] = +{ + { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, + { 2, { 2, 3, 0 } }, { 1, { 3, 0, 0 } }, { 2, { 3, 7, 0 } }, + { 1, { 7, 0, 0 } }, { 2, { 7, 0, 0 } } +}, +right[8] = +{ + { 1, { 7, 0, 0 } }, { 2, { 3, 7, 0 } }, { 1, { 3, 0, 0 } }, + { 2, { 3, 4, 0 } }, { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, + { 0, { 0, 0, 0 } }, { 2, { 6, 7, 0 } } +}, +lower[8] = +{ + { 0, { 0, 0, 0 } }, { 2, { 0, 1, 0 } }, { 1, { 1, 0, 0 } }, + { 2, { 1, 5, 0 } }, { 1, { 5, 0, 0 } }, { 2, { 5, 6, 0 } }, + { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } } +}, +upleft[8] = +{ + { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, + { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, { 1, { 3, 0, 0 } }, + { 2, { 1, 3, 0 } }, { 1, { 1, 0, 0 } } +}, +upright[8] = +{ + { 2, { 3, 5, 0 } }, { 1, { 3, 0, 0 } }, { 0, { 0, 0, 0 } }, + { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, + { 0, { 0, 0, 0 } }, { 1, { 5, 0, 0 } } +}, +lowleft[8] = +{ + { 3, { 7, 0, 1 } }, { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, + { 1, { 1, 0, 0 } }, { 2, { 1, 7, 0 } }, { 1, { 7, 0, 0 } }, + { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } } +}, +lowright[8] = +{ + { 0, { 0, 0, 0 } }, { 1, { 7, 0, 0 } }, { 2, { 5, 7, 0 } }, + { 1, { 5, 0, 0 } }, { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } }, + { 0, { 0, 0, 0 } }, { 0, { 0, 0, 0 } } +}; + +static void cleanup(void) +{ + standend(); + refresh(); + curs_set(1); + endwin(); +} + +int main(int argc, char *argv[]) +{ + const struct options *op; + struct worm *w; + short **ref, *ip; + int x, y, n, h, last, bottom, seed; + + for (x = 1; x < argc; x++) + { + char *p = argv[x]; + + if (*p == '-') + p++; + + switch (*p) + { + case 'f': + field = "WORM"; + break; + case 'l': + if (++x == argc) + goto usage; + + if ((length = atoi(argv[x])) < 2 || length > 1024) + { + fprintf(stderr, "%s: Invalid length\n", *argv); + return EXIT_FAILURE; + } + + break; + case 'n': + if (++x == argc) + goto usage; + + if ((number = atoi(argv[x])) < 1 || number > 40) + { + fprintf(stderr, "%s: Invalid number of worms\n", *argv); + return EXIT_FAILURE; + } + + break; + case 't': + trail = '.'; + break; + default: + usage: + fprintf(stderr, "usage: %s [-field] [-length #] " + "[-number #] [-trail]\n", *argv); + return EXIT_FAILURE; + } + } + +#ifdef XCURSES + Xinitscr(argc, argv); +#else + initscr(); +#endif + seed = time((time_t *)0); + srand(seed); + + noecho(); + cbreak(); + nonl(); + keypad(stdscr, TRUE); + + curs_set(0); + + bottom = LINES - 1; + last = COLS - 1; + +#ifdef A_COLOR + if (has_colors()) + { + int bg = COLOR_BLACK; + start_color(); + +# if defined(NCURSES_VERSION) || (defined(PDC_BUILD) && PDC_BUILD > 3000) + if (use_default_colors() == OK) + bg = -1; +# endif + +# define SET_COLOR(num, fg) \ + init_pair(num + 1, fg, bg); \ + flavor[num] |= COLOR_PAIR(num + 1) | A_BOLD + + SET_COLOR(0, COLOR_GREEN); + SET_COLOR(1, COLOR_RED); + SET_COLOR(2, COLOR_CYAN); + SET_COLOR(3, COLOR_WHITE); + SET_COLOR(4, COLOR_MAGENTA); + SET_COLOR(5, COLOR_BLUE); + SET_COLOR(6, COLOR_YELLOW); + } +#endif + + ref = malloc(sizeof(short *) * LINES); + + for (y = 0; y < LINES; y++) + { + ref[y] = malloc(sizeof(short) * COLS); + + for (x = 0; x < COLS; x++) + ref[y][x] = 0; + } + +#ifdef BADCORNER + /* if addressing the lower right corner doesn't work in your curses */ + + ref[bottom][last] = 1; +#endif + + for (n = number, w = &worm[0]; --n >= 0; w++) + { + w->orientation = w->head = 0; + + if ((ip = malloc(sizeof(short) * (length + 1))) == NULL) + { + fprintf(stderr, "%s: out of memory\n", *argv); + return EXIT_FAILURE; + } + + w->xpos = ip; + + for (x = length; --x >= 0;) + *ip++ = -1; + + if ((ip = malloc(sizeof(short) * (length + 1))) == NULL) + { + fprintf(stderr, "%s: out of memory\n", *argv); + return EXIT_FAILURE; + } + + w->ypos = ip; + + for (y = length; --y >= 0;) + *ip++ = -1; + } + + if (field) + { + const char *p = field; + + for (y = bottom; --y >= 0;) + for (x = COLS; --x >= 0;) + { + addch((chtype) (*p++)); + + if (!*p) + p = field; + } + } + + napms(12); + refresh(); + nodelay(stdscr, TRUE); + + for (;;) + { + int ch; + + if ((ch = getch()) > 0) + { +#ifdef KEY_RESIZE + if (ch == KEY_RESIZE) + { +# ifdef PDCURSES + resize_term(0, 0); + erase(); +# endif + if (last != COLS - 1) + { + for (y = 0; y <= bottom; y++) + { + ref[y] = realloc(ref[y], sizeof(short) * COLS); + + for (x = last + 1; x < COLS; x++) + ref[y][x] = 0; + } + + last = COLS - 1; + } + + if (bottom != LINES - 1) + { + for (y = LINES; y <= bottom; y++) + free(ref[y]); + + ref = realloc(ref, sizeof(short *) * LINES); + + for (y = bottom + 1; y < LINES; y++) + { + ref[y] = malloc(sizeof(short) * COLS); + + for (x = 0; x < COLS; x++) + ref[y][x] = 0; + } + + bottom = LINES - 1; + } + } + +#endif /* KEY_RESIZE */ + + /* Make it simple to put this into single-step mode, + or resume normal operation - T. Dickey */ + + if (ch == 'q') + { + cleanup(); + return EXIT_SUCCESS; + } + else if (ch == 's') + nodelay(stdscr, FALSE); + else if (ch == ' ') + nodelay(stdscr, TRUE); + } + + for (n = 0, w = &worm[0]; n < number; n++, w++) + { + if ((x = w->xpos[h = w->head]) < 0) + { + move(y = w->ypos[h] = bottom, x = w->xpos[h] = 0); + addch(flavor[n % FLAVORS]); + ref[y][x]++; + } + else + y = w->ypos[h]; + + if (x > last) + x = last; + + if (y > bottom) + y = bottom; + + if (++h == length) + h = 0; + + if (w->xpos[w->head = h] >= 0) + { + int x1 = w->xpos[h]; + int y1 = w->ypos[h]; + + if (y1 < LINES && x1 < COLS && --ref[y1][x1] == 0) + { + move(y1, x1); + addch(trail); + } + } + + op = &(x == 0 ? (y == 0 ? upleft : + (y == bottom ? lowleft : left)) : + (x == last ? (y == 0 ? upright : + (y == bottom ? lowright : right)) : + (y == 0 ? upper : + (y == bottom ? lower : normal)))) + [w->orientation]; + + switch (op->nopts) + { + case 0: + cleanup(); + return EXIT_SUCCESS; + case 1: + w->orientation = op->opts[0]; + break; + default: + w->orientation = op->opts[rand() % op->nopts]; + } + + move(y += yinc[w->orientation], x += xinc[w->orientation]); + + if (y < 0) + y = 0; + + addch(flavor[n % FLAVORS]); + ref[w->ypos[h] = y][w->xpos[h] = x]++; + } + napms(12); + refresh(); + } +} |