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Diffstat (limited to 'boggle/boggle/timer.c')
| -rw-r--r-- | boggle/boggle/timer.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/boggle/boggle/timer.c b/boggle/boggle/timer.c new file mode 100644 index 00000000..573ec3c2 --- /dev/null +++ b/boggle/boggle/timer.c @@ -0,0 +1,118 @@ +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Barry Brachman. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static char sccsid[] = "@(#)timer.c 8.2 (Berkeley) 2/22/94"; +#endif /* not lint */ + +#include <sys/param.h> +#include <sys/time.h> + +#include <curses.h> +#include <setjmp.h> +#include <stdio.h> +#include <unistd.h> + +#include "bog.h" +#include "extern.h" + +static int waitch __P((long)); + +/* + * Update the display of the remaining time while waiting for a character + * If time runs out do a longjmp() to the game controlling routine, returning + * non-zero; oth. return the character + * Leave the cursor where it was initially + */ +int +timerch() +{ + extern int tlimit; + extern long start_t; + extern jmp_buf env; + long prevt, t; + int col, remaining, row; + + getyx(stdscr, row, col); + prevt = 0L; + for (;;) { + if (waitch(1000L) == 1) + break; + time(&t); + if (t == prevt) + continue; + prevt = t; + remaining = tlimit - (int) (t - start_t); + if (remaining < 0) { + longjmp(env, 1); + /*NOTREACHED*/ + } + move(TIMER_LINE, TIMER_COL); + printw("%d:%02d", remaining / 60, remaining % 60); + move(row, col); + refresh(); + } + return (getch() & 0177); +} + +/* + * Wait up to 'delay' microseconds for input to appear + * Returns 1 if input is ready, 0 oth. + */ +static int +waitch(delay) + long delay; +{ + fd_set fdbits; + struct timeval duration; + + duration.tv_sec = 0; + duration.tv_usec = delay; + FD_ZERO(&fdbits); + FD_SET(STDIN_FILENO, &fdbits); + return (select(32, &fdbits, NULL, NULL, &duration)); +} + +void +delay(tenths) + int tenths; +{ + struct timeval duration; + + duration.tv_usec = (tenths % 10 ) * 100000L; + duration.tv_sec = (long) (tenths / 10); + select(32, 0, 0, 0, &duration); +} |