projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| fdc7d56f | 1 | /* |
| e95fc82a KB |
2 | * Copyright (c) 1983 Regents of the University of California. |
| 3 | * All rights reserved. | |
| 4 | * | |
| a6547b1d | 5 | * %sccs.include.redist.c% |
| fdc7d56f EW |
6 | */ |
| 7 | ||
| 8340cf9a | 8 | #ifndef lint |
| a6547b1d | 9 | static char sccsid[] = "@(#)room.c 5.3 (Berkeley) %G%"; |
| e95fc82a | 10 | #endif /* not lint */ |
| 8340cf9a EW |
11 | |
| 12 | #include "externs.h" | |
| 13 | ||
| 14 | writedes() | |
| 15 | { | |
| 16 | int compass; | |
| 17 | register char *p; | |
| 18 | register c; | |
| 19 | ||
| 20 | printf("\n\t%s\n", location[position].name); | |
| a7c71d1e | 21 | if (beenthere[position] < 3) { |
| 8340cf9a EW |
22 | compass = NORTH; |
| 23 | for (p = location[position].desc; c = *p++;) | |
| 24 | if (c != '-' && c != '*' && c != '+') | |
| 25 | putchar(c); | |
| 26 | else { | |
| 27 | if (c != '*') | |
| 28 | printf(truedirec(compass, c)); | |
| 29 | compass++; | |
| 30 | } | |
| 31 | } | |
| 32 | } | |
| 33 | ||
| 34 | printobjs() | |
| 35 | { | |
| a7c71d1e | 36 | register unsigned int *p = location[position].objects; |
| 8340cf9a EW |
37 | register n; |
| 38 | ||
| 39 | printf("\n"); | |
| a7c71d1e EW |
40 | for (n = 0; n < NUMOFOBJECTS; n++) |
| 41 | if (testbit(p, n) && objdes[n]) | |
| 42 | puts(objdes[n]); | |
| 8340cf9a EW |
43 | } |
| 44 | ||
| 45 | whichway(here) | |
| 46 | struct room here; | |
| 47 | { | |
| 48 | switch(direction) { | |
| 49 | ||
| 50 | case NORTH: | |
| 51 | left = here.west; | |
| 52 | right = here.east; | |
| 53 | ahead = here.north; | |
| 54 | back = here.south; | |
| 55 | break; | |
| 56 | ||
| 57 | case SOUTH: | |
| 58 | left = here.east; | |
| 59 | right = here.west; | |
| 60 | ahead = here.south; | |
| 61 | back = here.north; | |
| 62 | break; | |
| 63 | ||
| 64 | case EAST: | |
| 65 | left = here.north; | |
| 66 | right = here.south; | |
| 67 | ahead = here.east; | |
| 68 | back = here.west; | |
| 69 | break; | |
| 70 | ||
| 71 | case WEST: | |
| 72 | left = here.south; | |
| 73 | right = here.north; | |
| 74 | ahead = here.west; | |
| 75 | back = here.east; | |
| 76 | break; | |
| 77 | ||
| 78 | } | |
| 79 | } | |
| 80 | ||
| 81 | char * | |
| 82 | truedirec(way, option) | |
| 83 | int way; | |
| 84 | char option; | |
| 85 | { | |
| 86 | switch(way) { | |
| 87 | ||
| 88 | case NORTH: | |
| 89 | switch(direction) { | |
| 90 | case NORTH: | |
| 91 | return("ahead"); | |
| 92 | case SOUTH: | |
| 93 | return(option == '+' ? "behind you" : "back"); | |
| 94 | case EAST: | |
| 95 | return("left"); | |
| 96 | case WEST: | |
| 97 | return("right"); | |
| 98 | } | |
| 99 | ||
| 100 | case SOUTH: | |
| 101 | switch(direction) { | |
| 102 | case NORTH: | |
| 103 | return(option == '+' ? "behind you" : "back"); | |
| 104 | case SOUTH: | |
| 105 | return("ahead"); | |
| 106 | case EAST: | |
| 107 | return("right"); | |
| 108 | case WEST: | |
| 109 | return("left"); | |
| 110 | } | |
| 111 | ||
| 112 | case EAST: | |
| 113 | switch(direction) { | |
| 114 | case NORTH: | |
| 115 | return("right"); | |
| 116 | case SOUTH: | |
| 117 | return("left"); | |
| 118 | case EAST: | |
| 119 | return("ahead"); | |
| 120 | case WEST: | |
| 121 | return(option == '+' ? "behind you" : "back"); | |
| 122 | } | |
| 123 | ||
| 124 | case WEST: | |
| 125 | switch(direction) { | |
| 126 | case NORTH: | |
| 127 | return("left"); | |
| 128 | case SOUTH: | |
| 129 | return("right"); | |
| 130 | case EAST: | |
| 131 | return(option == '+' ? "behind you" : "back"); | |
| 132 | case WEST: | |
| 133 | return("ahead"); | |
| 134 | } | |
| 135 | ||
| 136 | default: | |
| 137 | printf("Error: room %d. More than four directions wanted.", position); | |
| 138 | return("!!"); | |
| 139 | } | |
| 140 | } | |
| 141 | ||
| 142 | newway(thisway) | |
| 143 | int thisway; | |
| 144 | { | |
| 145 | switch(direction){ | |
| 146 | ||
| 147 | case NORTH: | |
| 148 | switch(thisway){ | |
| 149 | case LEFT: | |
| 150 | direction = WEST; | |
| 151 | break; | |
| 152 | case RIGHT: | |
| 153 | direction = EAST; | |
| 154 | break; | |
| 155 | case BACK: | |
| 156 | direction = SOUTH; | |
| 157 | break; | |
| 158 | } | |
| 159 | break; | |
| 160 | case SOUTH: | |
| 161 | switch(thisway){ | |
| 162 | case LEFT: | |
| 163 | direction = EAST; | |
| 164 | break; | |
| 165 | case RIGHT: | |
| 166 | direction = WEST; | |
| 167 | break; | |
| 168 | case BACK: | |
| 169 | direction = NORTH; | |
| 170 | break; | |
| 171 | } | |
| 172 | break; | |
| 173 | case EAST: | |
| 174 | switch(thisway){ | |
| 175 | case LEFT: | |
| 176 | direction = NORTH; | |
| 177 | break; | |
| 178 | case RIGHT: | |
| 179 | direction = SOUTH; | |
| 180 | break; | |
| 181 | case BACK: | |
| 182 | direction = WEST; | |
| 183 | break; | |
| 184 | } | |
| 185 | break; | |
| 186 | case WEST: | |
| 187 | switch(thisway){ | |
| 188 | case LEFT: | |
| 189 | direction = SOUTH; | |
| 190 | break; | |
| 191 | case RIGHT: | |
| 192 | direction = NORTH; | |
| 193 | break; | |
| 194 | case BACK: | |
| 195 | direction = EAST; | |
| 196 | break; | |
| 197 | } | |
| 198 | break; | |
| 199 | } | |
| 200 | } |