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/* $OpenBSD: check.c,v 1.2 1998/03/19 11:13:18 pjanzen Exp $ */
/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* 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
#if 0
static char sccsid[] = "@(#)check.c 8.1 (Berkeley) 5/31/93";
#else
static char rcsid[] = "$OpenBSD: check.c,v 1.2 1998/03/19 11:13:18 pjanzen Exp $";
#endif
#endif /* not lint */
#include "back.h"
void
getmove()
{
int i, c;
c = 0;
for (;;) {
i = checkmove(c);
switch (i) {
case -1:
if (movokay(mvlim)) {
if (tflag)
curmove(20, 0);
else
writec('\n');
for (i = 0; i < mvlim; i++)
if (h[i])
wrhit(g[i]);
nexturn();
if (*offopp == 15)
cturn *= -2;
if (tflag && pnum)
bflag = pnum;
return;
}
case -4:
case 0:
if (tflag)
refresh();
if (i != 0 && i != -4)
break;
if (tflag)
curmove(20, 0);
else
writec('\n');
writel(*Colorptr);
if (i == -4)
writel(" must make ");
else
writel(" can only make ");
writec(mvlim + '0');
writel(" move");
if (mvlim > 1)
writec('s');
writec('.');
writec('\n');
break;
case -3:
if (quit())
return;
}
if (!tflag)
proll();
else {
curmove(cturn == -1 ? 18 : 19, 39);
cline();
c = -1;
}
}
}
int
movokay(mv)
int mv;
{
int i, m;
if (d0)
swap;
for (i = 0; i < mv; i++) {
if (p[i] == g[i]) {
moverr(i);
curmove(20, 0);
writel("Attempt to move to same location.\n");
return(0);
}
if (cturn * (g[i] - p[i]) < 0) {
moverr(i);
curmove(20, 0);
writel("Backwards move.\n");
return(0);
}
if (abs(board[bar]) && p[i] != bar) {
moverr(i);
curmove(20, 0);
writel("Men still on bar.\n");
return(0);
}
if (m = makmove(i)) {
moverr(i);
switch (m) {
case 1:
writel("Move not rolled.\n");
break;
case 2:
writel("Bad starting position.\n");
break;
case 3:
writel("Destination occupied.\n");
break;
case 4:
writel("Can't remove men yet.\n");
}
return(0);
}
}
return(1);
}
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