contrib/ncurses-5.4/test/firework.c

   1 /*
   2  * $Id: firework.c,v 1.20 2002/03/23 21:41:42 tom Exp $
   3  */
   4 #include <time.h>
   5
   6 #include <test.priv.h>
   7
   8 static int my_bg = COLOR_BLACK;
   9
  10 static void
  11 cleanup(void)
  12 {
  13     curs_set(1);
  14     endwin();
  15 }
  16
  17 static RETSIGTYPE
  18 onsig(int n GCC_UNUSED)
  19 {
  20     cleanup();
  21     ExitProgram(EXIT_FAILURE);
  22 }
  23
  24 static void
  25 showit(void)
  26 {
  27     int ch;
  28     napms(120);
  29     if ((ch = getch()) != ERR) {
  30 #ifdef KEY_RESIZE
  31         if (ch == KEY_RESIZE) {
  32             erase();
  33         } else
  34 #endif
  35         if (ch == 'q') {
  36             cleanup();
  37             ExitProgram(EXIT_SUCCESS);
  38         } else if (ch == 's') {
  39             nodelay(stdscr, FALSE);
  40         } else if (ch == ' ') {
  41             nodelay(stdscr, TRUE);
  42         }
  43     }
  44 }
  45
  46 static
  47 int
  48 get_colour(chtype * bold)
  49 {
  50     int attr;
  51     attr = (rand() % 16) + 1;
  52
  53     *bold = A_NORMAL;
  54     if (attr > 8) {
  55         *bold = A_BOLD;
  56         attr &= 7;
  57     }
  58     return (attr);
  59 }
  60
  61 static
  62 void
  63 explode(int row, int col)
  64 {
  65     chtype bold;
  66     erase();
  67     mvprintw(row, col, "-");
  68     showit();
  69
  70     init_pair(1, get_colour(&bold), my_bg);
  71     attrset(COLOR_PAIR(1) | bold);
  72     mvprintw(row - 1, col - 1, " - ");
  73     mvprintw(row + 0, col - 1, "-+-");
  74     mvprintw(row + 1, col - 1, " - ");
  75     showit();
  76
  77     init_pair(1, get_colour(&bold), my_bg);
  78     attrset(COLOR_PAIR(1) | bold);
  79     mvprintw(row - 2, col - 2, " --- ");
  80     mvprintw(row - 1, col - 2, "-+++-");
  81     mvprintw(row + 0, col - 2, "-+#+-");
  82     mvprintw(row + 1, col - 2, "-+++-");
  83     mvprintw(row + 2, col - 2, " --- ");
  84     showit();
  85
  86     init_pair(1, get_colour(&bold), my_bg);
  87     attrset(COLOR_PAIR(1) | bold);
  88     mvprintw(row - 2, col - 2, " +++ ");
  89     mvprintw(row - 1, col - 2, "++#++");
  90     mvprintw(row + 0, col - 2, "+# #+");
  91     mvprintw(row + 1, col - 2, "++#++");
  92     mvprintw(row + 2, col - 2, " +++ ");
  93     showit();
  94
  95     init_pair(1, get_colour(&bold), my_bg);
  96     attrset(COLOR_PAIR(1) | bold);
  97     mvprintw(row - 2, col - 2, "  #  ");
  98     mvprintw(row - 1, col - 2, "## ##");
  99     mvprintw(row + 0, col - 2, "#   #");
 100     mvprintw(row + 1, col - 2, "## ##");
 101     mvprintw(row + 2, col - 2, "  #  ");
 102     showit();
 103
 104     init_pair(1, get_colour(&bold), my_bg);
 105     attrset(COLOR_PAIR(1) | bold);
 106     mvprintw(row - 2, col - 2, " # # ");
 107     mvprintw(row - 1, col - 2, "#   #");
 108     mvprintw(row + 0, col - 2, "     ");
 109     mvprintw(row + 1, col - 2, "#   #");
 110     mvprintw(row + 2, col - 2, " # # ");
 111     showit();
 112 }
 113
 114 int
 115 main(
 116         int argc GCC_UNUSED,
 117         char *argv[]GCC_UNUSED)
 118 {
 119     int j;
 120     int start, end, row, diff, flag = 0, direction;
 121     unsigned seed;
 122
 123     for (j = SIGHUP; j <= SIGTERM; j++)
 124         if (signal(j, SIG_IGN) != SIG_IGN)
 125             signal(j, onsig);
 126
 127     initscr();
 128     noecho();
 129     cbreak();
 130     keypad(stdscr, TRUE);
 131     nodelay(stdscr, TRUE);
 132
 133     if (has_colors()) {
 134         start_color();
 135 #if HAVE_USE_DEFAULT_COLORS
 136         if (use_default_colors() == OK)
 137             my_bg = -1;
 138 #endif
 139     }
 140     curs_set(0);
 141
 142     seed = time((time_t *) 0);
 143     srand(seed);
 144     for (;;) {
 145         do {
 146             start = rand() % (COLS - 3);
 147             end = rand() % (COLS - 3);
 148             start = (start < 2) ? 2 : start;
 149             end = (end < 2) ? 2 : end;
 150             direction = (start > end) ? -1 : 1;
 151             diff = abs(start - end);
 152         } while (diff < 2 || diff >= LINES - 2);
 153         attrset(A_NORMAL);
 154         for (row = 0; row < diff; row++) {
 155             mvprintw(LINES - row, start + (row * direction),
 156                      (direction < 0) ? "\\" : "/");
 157             if (flag++) {
 158                 showit();
 159                 erase();
 160                 flag = 0;
 161             }
 162         }
 163         if (flag++) {
 164             showit();
 165             flag = 0;
 166         }
 167         seed = time((time_t *) 0);
 168         srand(seed);
 169         explode(LINES - row, start + (diff * direction));
 170         erase();
 171         showit();
 172     }
 173 }