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27 ****************************************************************************/
28/*
29 * $Id: firework.c,v 1.24 2006/05/20 15:36:08 tom Exp $
30 */
31#include <test.priv.h>
32
33#include <time.h>
34
35static int my_bg = COLOR_BLACK;
36
37static void
38cleanup(void)
39{
40    curs_set(1);
41    endwin();
42}
43
44static RETSIGTYPE
45onsig(int n GCC_UNUSED)
46{
47    cleanup();
48    ExitProgram(EXIT_FAILURE);
49}
50
51static void
52showit(void)
53{
54    int ch;
55    napms(120);
56    if ((ch = getch()) != ERR) {
57#ifdef KEY_RESIZE
58	if (ch == KEY_RESIZE) {
59	    erase();
60	} else
61#endif
62	if (ch == 'q') {
63	    cleanup();
64	    ExitProgram(EXIT_SUCCESS);
65	} else if (ch == 's') {
66	    nodelay(stdscr, FALSE);
67	} else if (ch == ' ') {
68	    nodelay(stdscr, TRUE);
69	}
70    }
71}
72
73static int
74get_colour(chtype *bold)
75{
76    int attr;
77    attr = (rand() % 16) + 1;
78
79    *bold = A_NORMAL;
80    if (attr > 8) {
81	*bold = A_BOLD;
82	attr &= 7;
83    }
84    return (attr);
85}
86
87static
88void
89explode(int row, int col)
90{
91    chtype bold;
92    erase();
93    mvprintw(row, col, "-");
94    showit();
95
96    init_pair(1, get_colour(&bold), my_bg);
97    attrset(COLOR_PAIR(1) | bold);
98    mvprintw(row - 1, col - 1, " - ");
99    mvprintw(row + 0, col - 1, "-+-");
100    mvprintw(row + 1, col - 1, " - ");
101    showit();
102
103    init_pair(1, get_colour(&bold), my_bg);
104    attrset(COLOR_PAIR(1) | bold);
105    mvprintw(row - 2, col - 2, " --- ");
106    mvprintw(row - 1, col - 2, "-+++-");
107    mvprintw(row + 0, col - 2, "-+#+-");
108    mvprintw(row + 1, col - 2, "-+++-");
109    mvprintw(row + 2, col - 2, " --- ");
110    showit();
111
112    init_pair(1, get_colour(&bold), my_bg);
113    attrset(COLOR_PAIR(1) | bold);
114    mvprintw(row - 2, col - 2, " +++ ");
115    mvprintw(row - 1, col - 2, "++#++");
116    mvprintw(row + 0, col - 2, "+# #+");
117    mvprintw(row + 1, col - 2, "++#++");
118    mvprintw(row + 2, col - 2, " +++ ");
119    showit();
120
121    init_pair(1, get_colour(&bold), my_bg);
122    attrset(COLOR_PAIR(1) | bold);
123    mvprintw(row - 2, col - 2, "  #  ");
124    mvprintw(row - 1, col - 2, "## ##");
125    mvprintw(row + 0, col - 2, "#   #");
126    mvprintw(row + 1, col - 2, "## ##");
127    mvprintw(row + 2, col - 2, "  #  ");
128    showit();
129
130    init_pair(1, get_colour(&bold), my_bg);
131    attrset(COLOR_PAIR(1) | bold);
132    mvprintw(row - 2, col - 2, " # # ");
133    mvprintw(row - 1, col - 2, "#   #");
134    mvprintw(row + 0, col - 2, "     ");
135    mvprintw(row + 1, col - 2, "#   #");
136    mvprintw(row + 2, col - 2, " # # ");
137    showit();
138}
139
140int
141main(
142	int argc GCC_UNUSED,
143	char *argv[]GCC_UNUSED)
144{
145    int start, end, row, diff, flag = 0, direction;
146    unsigned seed;
147
148    CATCHALL(onsig);
149
150    initscr();
151    noecho();
152    cbreak();
153    keypad(stdscr, TRUE);
154    nodelay(stdscr, TRUE);
155
156    if (has_colors()) {
157	start_color();
158#if HAVE_USE_DEFAULT_COLORS
159	if (use_default_colors() == OK)
160	    my_bg = -1;
161#endif
162    }
163    curs_set(0);
164
165    seed = time((time_t *) 0);
166    srand(seed);
167    for (;;) {
168	do {
169	    start = rand() % (COLS - 3);
170	    end = rand() % (COLS - 3);
171	    start = (start < 2) ? 2 : start;
172	    end = (end < 2) ? 2 : end;
173	    direction = (start > end) ? -1 : 1;
174	    diff = abs(start - end);
175	} while (diff < 2 || diff >= LINES - 2);
176	attrset(A_NORMAL);
177	for (row = 0; row < diff; row++) {
178	    mvprintw(LINES - row, start + (row * direction),
179		     (direction < 0) ? "\\" : "/");
180	    if (flag++) {
181		showit();
182		erase();
183		flag = 0;
184	    }
185	}
186	if (flag++) {
187	    showit();
188	    flag = 0;
189	}
190	seed = time((time_t *) 0);
191	srand(seed);
192	explode(LINES - row, start + (diff * direction));
193	erase();
194	showit();
195    }
196}
197