1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)room.c 8.1 (Berkeley) 5/31/93 34 * $FreeBSD: src/games/battlestar/room.c,v 1.7.2.2 2001/03/05 11:45:36 kris Exp $ 35 * $DragonFly: src/games/battlestar/room.c,v 1.2 2003/06/17 04:25:23 dillon Exp $ 36 */ 37 38 #include "externs.h" 39 40 void 41 writedes() 42 { 43 int compass; 44 const char *p; 45 unsigned int c; 46 47 printf("\n\t%s\n", location[position].name); 48 if (beenthere[position] < 3) { 49 compass = NORTH; 50 for ((p = location[position].desc); (c = *p++);) 51 if (c != '-' && c != '*' && c != '+') 52 putchar((int)c); 53 else { 54 if (c != '*') 55 printf("%s", truedirec(compass, c)); 56 compass++; 57 } 58 } 59 } 60 61 void 62 printobjs() 63 { 64 unsigned int *p = location[position].objects; 65 int n; 66 67 printf("\n"); 68 for (n = 0; n < NUMOFOBJECTS; n++) 69 if (testbit(p, n) && objdes[n]) 70 puts(objdes[n]); 71 } 72 73 void 74 whichway(here) 75 struct room here; 76 { 77 switch(direction) { 78 79 case NORTH: 80 left = here.west; 81 right = here.east; 82 ahead = here.north; 83 back = here.south; 84 break; 85 86 case SOUTH: 87 left = here.east; 88 right = here.west; 89 ahead = here.south; 90 back = here.north; 91 break; 92 93 case EAST: 94 left = here.north; 95 right = here.south; 96 ahead = here.east; 97 back = here.west; 98 break; 99 100 case WEST: 101 left = here.south; 102 right = here.north; 103 ahead = here.west; 104 back = here.east; 105 break; 106 107 } 108 } 109 110 const char * 111 truedirec(way, option) 112 int way; 113 unsigned int option; 114 { 115 switch(way) { 116 117 case NORTH: 118 switch(direction) { 119 case NORTH: 120 return("ahead"); 121 case SOUTH: 122 return(option == '+' ? "behind you" : "back"); 123 case EAST: 124 return("left"); 125 case WEST: 126 return("right"); 127 } 128 129 case SOUTH: 130 switch(direction) { 131 case NORTH: 132 return(option == '+' ? "behind you" : "back"); 133 case SOUTH: 134 return("ahead"); 135 case EAST: 136 return("right"); 137 case WEST: 138 return("left"); 139 } 140 141 case EAST: 142 switch(direction) { 143 case NORTH: 144 return("right"); 145 case SOUTH: 146 return("left"); 147 case EAST: 148 return("ahead"); 149 case WEST: 150 return(option == '+' ? "behind you" : "back"); 151 } 152 153 case WEST: 154 switch(direction) { 155 case NORTH: 156 return("left"); 157 case SOUTH: 158 return("right"); 159 case EAST: 160 return(option == '+' ? "behind you" : "back"); 161 case WEST: 162 return("ahead"); 163 } 164 165 default: 166 printf("Error: room %d. More than four directions wanted.", position); 167 return("!!"); 168 } 169 } 170 171 void 172 newway(thisway) 173 int thisway; 174 { 175 switch(direction){ 176 177 case NORTH: 178 switch(thisway){ 179 case LEFT: 180 direction = WEST; 181 break; 182 case RIGHT: 183 direction = EAST; 184 break; 185 case BACK: 186 direction = SOUTH; 187 break; 188 } 189 break; 190 case SOUTH: 191 switch(thisway){ 192 case LEFT: 193 direction = EAST; 194 break; 195 case RIGHT: 196 direction = WEST; 197 break; 198 case BACK: 199 direction = NORTH; 200 break; 201 } 202 break; 203 case EAST: 204 switch(thisway){ 205 case LEFT: 206 direction = NORTH; 207 break; 208 case RIGHT: 209 direction = SOUTH; 210 break; 211 case BACK: 212 direction = WEST; 213 break; 214 } 215 break; 216 case WEST: 217 switch(thisway){ 218 case LEFT: 219 direction = SOUTH; 220 break; 221 case RIGHT: 222 direction = NORTH; 223 break; 224 case BACK: 225 direction = EAST; 226 break; 227 } 228 break; 229 } 230 } 231