projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| fdc7d56f EW |
1 | /* |
| 2 | * Copyright (c) 1983 Regents of the University of California, | |
| 3 | * All rights reserved. Redistribution permitted subject to | |
| 4 | * the terms of the Berkeley Software License Agreement. | |
| 5 | */ | |
| 6 | ||
| 8340cf9a | 7 | #ifndef lint |
| fdc7d56f | 8 | static char sccsid[] = "@(#)room.c 1.3 %G%"; |
| 8340cf9a EW |
9 | #endif |
| 10 | ||
| 11 | #include "externs.h" | |
| 12 | ||
| 13 | writedes() | |
| 14 | { | |
| 15 | int compass; | |
| 16 | register char *p; | |
| 17 | register c; | |
| 18 | ||
| 19 | printf("\n\t%s\n", location[position].name); | |
| a7c71d1e | 20 | if (beenthere[position] < 3) { |
| 8340cf9a EW |
21 | compass = NORTH; |
| 22 | for (p = location[position].desc; c = *p++;) | |
| 23 | if (c != '-' && c != '*' && c != '+') | |
| 24 | putchar(c); | |
| 25 | else { | |
| 26 | if (c != '*') | |
| 27 | printf(truedirec(compass, c)); | |
| 28 | compass++; | |
| 29 | } | |
| 30 | } | |
| 31 | } | |
| 32 | ||
| 33 | printobjs() | |
| 34 | { | |
| a7c71d1e | 35 | register unsigned int *p = location[position].objects; |
| 8340cf9a EW |
36 | register n; |
| 37 | ||
| 38 | printf("\n"); | |
| a7c71d1e EW |
39 | for (n = 0; n < NUMOFOBJECTS; n++) |
| 40 | if (testbit(p, n) && objdes[n]) | |
| 41 | puts(objdes[n]); | |
| 8340cf9a EW |
42 | } |
| 43 | ||
| 44 | whichway(here) | |
| 45 | struct room here; | |
| 46 | { | |
| 47 | switch(direction) { | |
| 48 | ||
| 49 | case NORTH: | |
| 50 | left = here.west; | |
| 51 | right = here.east; | |
| 52 | ahead = here.north; | |
| 53 | back = here.south; | |
| 54 | break; | |
| 55 | ||
| 56 | case SOUTH: | |
| 57 | left = here.east; | |
| 58 | right = here.west; | |
| 59 | ahead = here.south; | |
| 60 | back = here.north; | |
| 61 | break; | |
| 62 | ||
| 63 | case EAST: | |
| 64 | left = here.north; | |
| 65 | right = here.south; | |
| 66 | ahead = here.east; | |
| 67 | back = here.west; | |
| 68 | break; | |
| 69 | ||
| 70 | case WEST: | |
| 71 | left = here.south; | |
| 72 | right = here.north; | |
| 73 | ahead = here.west; | |
| 74 | back = here.east; | |
| 75 | break; | |
| 76 | ||
| 77 | } | |
| 78 | } | |
| 79 | ||
| 80 | char * | |
| 81 | truedirec(way, option) | |
| 82 | int way; | |
| 83 | char option; | |
| 84 | { | |
| 85 | switch(way) { | |
| 86 | ||
| 87 | case NORTH: | |
| 88 | switch(direction) { | |
| 89 | case NORTH: | |
| 90 | return("ahead"); | |
| 91 | case SOUTH: | |
| 92 | return(option == '+' ? "behind you" : "back"); | |
| 93 | case EAST: | |
| 94 | return("left"); | |
| 95 | case WEST: | |
| 96 | return("right"); | |
| 97 | } | |
| 98 | ||
| 99 | case SOUTH: | |
| 100 | switch(direction) { | |
| 101 | case NORTH: | |
| 102 | return(option == '+' ? "behind you" : "back"); | |
| 103 | case SOUTH: | |
| 104 | return("ahead"); | |
| 105 | case EAST: | |
| 106 | return("right"); | |
| 107 | case WEST: | |
| 108 | return("left"); | |
| 109 | } | |
| 110 | ||
| 111 | case EAST: | |
| 112 | switch(direction) { | |
| 113 | case NORTH: | |
| 114 | return("right"); | |
| 115 | case SOUTH: | |
| 116 | return("left"); | |
| 117 | case EAST: | |
| 118 | return("ahead"); | |
| 119 | case WEST: | |
| 120 | return(option == '+' ? "behind you" : "back"); | |
| 121 | } | |
| 122 | ||
| 123 | case WEST: | |
| 124 | switch(direction) { | |
| 125 | case NORTH: | |
| 126 | return("left"); | |
| 127 | case SOUTH: | |
| 128 | return("right"); | |
| 129 | case EAST: | |
| 130 | return(option == '+' ? "behind you" : "back"); | |
| 131 | case WEST: | |
| 132 | return("ahead"); | |
| 133 | } | |
| 134 | ||
| 135 | default: | |
| 136 | printf("Error: room %d. More than four directions wanted.", position); | |
| 137 | return("!!"); | |
| 138 | } | |
| 139 | } | |
| 140 | ||
| 141 | newway(thisway) | |
| 142 | int thisway; | |
| 143 | { | |
| 144 | switch(direction){ | |
| 145 | ||
| 146 | case NORTH: | |
| 147 | switch(thisway){ | |
| 148 | case LEFT: | |
| 149 | direction = WEST; | |
| 150 | break; | |
| 151 | case RIGHT: | |
| 152 | direction = EAST; | |
| 153 | break; | |
| 154 | case BACK: | |
| 155 | direction = SOUTH; | |
| 156 | break; | |
| 157 | } | |
| 158 | break; | |
| 159 | case SOUTH: | |
| 160 | switch(thisway){ | |
| 161 | case LEFT: | |
| 162 | direction = EAST; | |
| 163 | break; | |
| 164 | case RIGHT: | |
| 165 | direction = WEST; | |
| 166 | break; | |
| 167 | case BACK: | |
| 168 | direction = NORTH; | |
| 169 | break; | |
| 170 | } | |
| 171 | break; | |
| 172 | case EAST: | |
| 173 | switch(thisway){ | |
| 174 | case LEFT: | |
| 175 | direction = NORTH; | |
| 176 | break; | |
| 177 | case RIGHT: | |
| 178 | direction = SOUTH; | |
| 179 | break; | |
| 180 | case BACK: | |
| 181 | direction = WEST; | |
| 182 | break; | |
| 183 | } | |
| 184 | break; | |
| 185 | case WEST: | |
| 186 | switch(thisway){ | |
| 187 | case LEFT: | |
| 188 | direction = SOUTH; | |
| 189 | break; | |
| 190 | case RIGHT: | |
| 191 | direction = NORTH; | |
| 192 | break; | |
| 193 | case BACK: | |
| 194 | direction = EAST; | |
| 195 | break; | |
| 196 | } | |
| 197 | break; | |
| 198 | } | |
| 199 | } |