1 /* $OpenBSD: check.c,v 1.3 1999/07/31 21:57:40 pjanzen Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)check.c 8.1 (Berkeley) 5/31/93"; 39 #else 40 static char rcsid[] = "$OpenBSD: check.c,v 1.3 1999/07/31 21:57:40 pjanzen Exp $"; 41 #endif 42 #endif /* not lint */ 43 44 #include "back.h" 45 46 void 47 getmove() 48 { 49 int i, c; 50 51 c = 0; 52 for (;;) { 53 i = checkmove(c); 54 55 switch (i) { 56 case -1: 57 if (movokay(mvlim)) { 58 if (tflag) 59 curmove(20, 0); 60 else 61 writec('\n'); 62 for (i = 0; i < mvlim; i++) 63 if (h[i]) 64 wrhit(g[i]); 65 nexturn(); 66 if (*offopp == 15) 67 cturn *= -2; 68 if (tflag && pnum) 69 bflag = pnum; 70 return; 71 } 72 case -4: 73 case 0: 74 if (tflag) 75 refresh(); 76 if (i != 0 && i != -4) 77 break; 78 if (tflag) 79 curmove(20, 0); 80 else 81 writec('\n'); 82 writel(*Colorptr); 83 if (i == -4) 84 writel(" must make "); 85 else 86 writel(" can only make "); 87 writec(mvlim + '0'); 88 writel(" move"); 89 if (mvlim > 1) 90 writec('s'); 91 writec('.'); 92 writec('\n'); 93 break; 94 95 case -3: 96 if (quit()) 97 return; 98 } 99 100 if (!tflag) 101 proll(); 102 else { 103 curmove(cturn == -1 ? 18 : 19, 39); 104 cline(); 105 c = -1; 106 } 107 } 108 } 109 110 int 111 movokay(mv) 112 int mv; 113 { 114 int i, m; 115 116 if (d0) 117 swap; 118 119 for (i = 0; i < mv; i++) { 120 if (p[i] == g[i]) { 121 moverr(i); 122 curmove(20, 0); 123 writel("Attempt to move to same location.\n"); 124 return(0); 125 } 126 if (cturn * (g[i] - p[i]) < 0) { 127 moverr(i); 128 curmove(20, 0); 129 writel("Backwards move.\n"); 130 return(0); 131 } 132 if (abs(board[bar]) && p[i] != bar) { 133 moverr(i); 134 curmove(20, 0); 135 writel("Men still on bar.\n"); 136 return(0); 137 } 138 if ((m = makmove(i))) { 139 moverr(i); 140 switch (m) { 141 case 1: 142 writel("Move not rolled.\n"); 143 break; 144 145 case 2: 146 writel("Bad starting position.\n"); 147 break; 148 149 case 3: 150 writel("Destination occupied.\n"); 151 break; 152 153 case 4: 154 writel("Can't remove men yet.\n"); 155 } 156 return(0); 157 } 158 } 159 return(1); 160 } 161