/****************************************************************************
- * Copyright (c) 1998-2002,2006 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2006,2008 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 *
* authorization. *
****************************************************************************/
/*
- * $Id: rain.c,v 1.22 2006/05/20 15:34:27 tom Exp $
+ * $Id: rain.c,v 1.26 2008/03/09 00:17:09 tom Exp $
*/
#include <test.priv.h>
/* rain 11/3/1980 EPS/CITHEP */
-static float ranf(void);
-static void onsig(int sig);
+#ifdef USE_PTHREADS
+#include <pthread.h>
+#endif
+
+WANT_USE_WINDOW();
+
+#define MAX_DROP 5
+
+struct DATA;
+
+typedef void (*DrawPart) (struct DATA *);
+
+typedef struct DATA {
+ int y, x;
+#ifdef USE_PTHREADS
+ pthread_t thread;
+ DrawPart func;
+ int state;
+#endif
+} DATA;
+
+static void
+onsig(int n GCC_UNUSED)
+{
+ curs_set(1);
+ endwin();
+ ExitProgram(EXIT_FAILURE);
+}
+
+static float
+ranf(void)
+{
+ long r = (rand() & 077777);
+ return ((float) r / 32768.);
+}
+
+static int
+random_x(void)
+{
+ return (((float) (COLS - 4) * ranf()) + 2);
+}
+
+static int
+random_y(void)
+{
+ return (((float) (LINES - 4) * ranf()) + 2);
+}
static int
next_j(int j)
{
if (j == 0)
- j = 4;
+ j = MAX_DROP - 1;
else
--j;
if (has_colors()) {
return j;
}
+static void
+part1(DATA * drop)
+{
+ mvaddch(drop->y, drop->x, '.');
+}
+
+static void
+part2(DATA * drop)
+{
+ mvaddch(drop->y, drop->x, 'o');
+}
+
+static void
+part3(DATA * drop)
+{
+ mvaddch(drop->y, drop->x, 'O');
+}
+
+static void
+part4(DATA * drop)
+{
+ mvaddch(drop->y - 1, drop->x, '-');
+ mvaddstr(drop->y, drop->x - 1, "|.|");
+ mvaddch(drop->y + 1, drop->x, '-');
+}
+
+static void
+part5(DATA * drop)
+{
+ mvaddch(drop->y - 2, drop->x, '-');
+ mvaddstr(drop->y - 1, drop->x - 1, "/ \\");
+ mvaddstr(drop->y, drop->x - 2, "| O |");
+ mvaddstr(drop->y + 1, drop->x - 1, "\\ /");
+ mvaddch(drop->y + 2, drop->x, '-');
+}
+
+static void
+part6(DATA * drop)
+{
+ mvaddch(drop->y - 2, drop->x, ' ');
+ mvaddstr(drop->y - 1, drop->x - 1, " ");
+ mvaddstr(drop->y, drop->x - 2, " ");
+ mvaddstr(drop->y + 1, drop->x - 1, " ");
+ mvaddch(drop->y + 2, drop->x, ' ');
+}
+
+#ifdef USE_PTHREADS
+static void
+napsome(void)
+{
+ refresh();
+ napms(60);
+}
+
+/*
+ * This runs inside the mutex.
+ */
+static int
+really_draw(WINDOW *win, void *arg)
+{
+ DATA *data = (DATA *) arg;
+
+ (void) win;
+ next_j(data->state);
+ data->func(data);
+ return OK;
+}
+
+static void
+draw_part(void (*func) (DATA *), int state, DATA * data)
+{
+ data->func = func;
+ data->state = state;
+ use_window(stdscr, really_draw, (void *) data);
+ napsome();
+}
+
+static void *
+draw_drop(void *arg)
+{
+ DATA mydata;
+
+ mydata = *(DATA *) arg; /* make a copy of caller's data */
+
+ draw_part(part1, 0, &mydata);
+ draw_part(part2, 1, &mydata);
+ draw_part(part3, 2, &mydata);
+ draw_part(part4, 3, &mydata);
+ draw_part(part5, 4, &mydata);
+ draw_part(part6, 0, &mydata);
+
+ return NULL;
+}
+#endif
+
+static int
+get_input(void)
+{
+ int ch;
+ ch = USING_WINDOW(stdscr, wgetch);
+ return ch;
+}
+
int
-main(
- int argc GCC_UNUSED,
- char *argv[]GCC_UNUSED)
+main(int argc GCC_UNUSED,
+ char *argv[]GCC_UNUSED)
{
- int x, y, j;
- static int xpos[5], ypos[5];
- float r;
- float c;
+ DATA drop;
+ DATA last[MAX_DROP];
+ int j = 0;
+ bool done = FALSE;
setlocale(LC_ALL, "");
curs_set(0);
timeout(0);
- r = (float) (LINES - 4);
- c = (float) (COLS - 4);
- for (j = 5; --j >= 0;) {
- xpos[j] = (int) (c * ranf()) + 2;
- ypos[j] = (int) (r * ranf()) + 2;
+ for (j = MAX_DROP; --j >= 0;) {
+ last[j].x = random_x();
+ last[j].y = random_y();
}
- for (j = 0;;) {
- x = (int) (c * ranf()) + 2;
- y = (int) (r * ranf()) + 2;
+ while (!done) {
+ drop.x = random_x();
+ drop.y = random_y();
- mvaddch(y, x, '.');
+#ifdef USE_PTHREADS
+ if (pthread_create(&(drop.thread), NULL, draw_drop, &drop)) {
+ beep();
+ done = TRUE;
+ continue;
+ }
+#else
+ /*
+ * The non-threaded code draws parts of each drop on each loop.
+ */
+ part1(&drop);
- mvaddch(ypos[j], xpos[j], 'o');
+ part2(&last[j]);
j = next_j(j);
- mvaddch(ypos[j], xpos[j], 'O');
+ part3(&last[j]);
j = next_j(j);
- mvaddch(ypos[j] - 1, xpos[j], '-');
- mvaddstr(ypos[j], xpos[j] - 1, "|.|");
- mvaddch(ypos[j] + 1, xpos[j], '-');
+ part4(&last[j]);
j = next_j(j);
- mvaddch(ypos[j] - 2, xpos[j], '-');
- mvaddstr(ypos[j] - 1, xpos[j] - 1, "/ \\");
- mvaddstr(ypos[j], xpos[j] - 2, "| O |");
- mvaddstr(ypos[j] + 1, xpos[j] - 1, "\\ /");
- mvaddch(ypos[j] + 2, xpos[j], '-');
+ part5(&last[j]);
j = next_j(j);
- mvaddch(ypos[j] - 2, xpos[j], ' ');
- mvaddstr(ypos[j] - 1, xpos[j] - 1, " ");
- mvaddstr(ypos[j], xpos[j] - 2, " ");
- mvaddstr(ypos[j] + 1, xpos[j] - 1, " ");
- mvaddch(ypos[j] + 2, xpos[j], ' ');
+ part6(&last[j]);
- xpos[j] = x;
- ypos[j] = y;
+ last[j] = drop;
+#endif
- switch (getch()) {
+ switch (get_input()) {
case ('q'):
case ('Q'):
- curs_set(1);
- endwin();
- ExitProgram(EXIT_SUCCESS);
+ done = TRUE;
+ break;
case 's':
nodelay(stdscr, FALSE);
break;
break;
#ifdef KEY_RESIZE
case (KEY_RESIZE):
- r = (float) (LINES - 4);
- c = (float) (COLS - 4);
break;
#endif
}
napms(50);
}
-}
-
-static void
-onsig(int n GCC_UNUSED)
-{
curs_set(1);
endwin();
- ExitProgram(EXIT_FAILURE);
-}
-
-static float
-ranf(void)
-{
- long r = (rand() & 077777);
- return ((float) r / 32768.);
+ ExitProgram(EXIT_SUCCESS);
}
projects / ncurses.git / blobdiff