hack.engrave.c revision 1.8
1 /* $NetBSD: hack.engrave.c,v 1.8 2009/06/07 20:30:49 dholland Exp $ */ 2 3 /* 4 * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica, 5 * Amsterdam 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are 10 * met: 11 * 12 * - Redistributions of source code must retain the above copyright notice, 13 * this list of conditions and the following disclaimer. 14 * 15 * - Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * - Neither the name of the Stichting Centrum voor Wiskunde en 20 * Informatica, nor the names of its contributors may be used to endorse or 21 * promote products derived from this software without specific prior 22 * written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 25 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 27 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 28 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 30 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 31 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 32 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 /* 38 * Copyright (c) 1982 Jay Fenlason <hack (at) gnu.org> 39 * All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. The name of the author may not be used to endorse or promote products 50 * derived from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 53 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 54 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 55 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 56 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 57 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 58 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 59 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 60 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 61 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 */ 63 64 #include <sys/cdefs.h> 65 #ifndef lint 66 __RCSID("$NetBSD: hack.engrave.c,v 1.8 2009/06/07 20:30:49 dholland Exp $"); 67 #endif /* not lint */ 68 69 #include <stdlib.h> 70 #include "hack.h" 71 #include "extern.h" 72 73 struct engr { 74 struct engr *nxt_engr; 75 char *engr_txt; 76 xchar engr_x, engr_y; 77 unsigned engr_lth; /* for save & restore; not length of 78 * text */ 79 long engr_time; /* moment engraving was (will be) 80 * finished */ 81 xchar engr_type; 82 #define DUST 1 83 #define ENGRAVE 2 84 #define BURN 3 85 } *head_engr; 86 87 struct engr * 88 engr_at(xchar x, xchar y) 89 { 90 struct engr *ep = head_engr; 91 while (ep) { 92 if (x == ep->engr_x && y == ep->engr_y) 93 return (ep); 94 ep = ep->nxt_engr; 95 } 96 return ((struct engr *) 0); 97 } 98 99 int 100 sengr_at(const char *s, xchar x, xchar y) 101 { 102 struct engr *ep = engr_at(x, y); 103 char *t; 104 int n; 105 if (ep && ep->engr_time <= moves) { 106 t = ep->engr_txt; 107 /* 108 if(!strcmp(s,t)) return(1); 109 */ 110 n = strlen(s); 111 while (*t) { 112 if (!strncmp(s, t, n)) 113 return (1); 114 t++; 115 } 116 } 117 return (0); 118 } 119 120 void 121 u_wipe_engr(int cnt) 122 { 123 if (!u.uswallow && !Levitation) 124 wipe_engr_at(u.ux, u.uy, cnt); 125 } 126 127 void 128 wipe_engr_at(xchar x, xchar y, xchar cnt) 129 { 130 struct engr *ep = engr_at(x, y); 131 int lth, pos; 132 char ch; 133 if (ep) { 134 if ((ep->engr_type != DUST) || Levitation) { 135 cnt = rn2(1 + 50 / (cnt + 1)) ? 0 : 1; 136 } 137 lth = strlen(ep->engr_txt); 138 if (lth && cnt > 0) { 139 while (cnt--) { 140 pos = rn2(lth); 141 if ((ch = ep->engr_txt[pos]) == ' ') 142 continue; 143 ep->engr_txt[pos] = (ch != '?') ? '?' : ' '; 144 } 145 } 146 while (lth && ep->engr_txt[lth - 1] == ' ') 147 ep->engr_txt[--lth] = 0; 148 while (ep->engr_txt[0] == ' ') 149 ep->engr_txt++; 150 if (!ep->engr_txt[0]) 151 del_engr(ep); 152 } 153 } 154 155 void 156 read_engr_at(int x, int y) 157 { 158 struct engr *ep = engr_at(x, y); 159 if (ep && ep->engr_txt[0]) { 160 switch (ep->engr_type) { 161 case DUST: 162 pline("Something is written here in the dust."); 163 break; 164 case ENGRAVE: 165 pline("Something is engraved here on the floor."); 166 break; 167 case BURN: 168 pline("Some text has been burned here in the floor."); 169 break; 170 default: 171 impossible("Something is written in a very strange way."); 172 } 173 pline("You read: \"%s\".", ep->engr_txt); 174 } 175 } 176 177 void 178 make_engr_at(int x, int y, const char *s) 179 { 180 struct engr *ep; 181 182 if ((ep = engr_at(x, y)) != NULL) 183 del_engr(ep); 184 ep = (struct engr *) 185 alloc((unsigned) (sizeof(struct engr) + strlen(s) + 1)); 186 ep->nxt_engr = head_engr; 187 head_engr = ep; 188 ep->engr_x = x; 189 ep->engr_y = y; 190 ep->engr_txt = (char *) (ep + 1); 191 (void) strcpy(ep->engr_txt, s); 192 ep->engr_time = 0; 193 ep->engr_type = DUST; 194 ep->engr_lth = strlen(s) + 1; 195 } 196 197 int 198 doengrave(void) 199 { 200 int len; 201 char *sp; 202 struct engr *ep, *oep = engr_at(u.ux, u.uy); 203 char buf[BUFSZ]; 204 xchar type; 205 int spct; /* number of leading spaces */ 206 struct obj *otmp; 207 multi = 0; 208 209 if (u.uswallow) { 210 pline("You're joking. Hahaha!"); /* riv05!a3 */ 211 return (0); 212 } 213 /* one may write with finger, weapon or wand */ 214 otmp = getobj("#-)/", "write with"); 215 if (!otmp) 216 return (0); 217 218 if (otmp == &zeroobj) 219 otmp = 0; 220 if (otmp && otmp->otyp == WAN_FIRE && otmp->spe) { 221 type = BURN; 222 otmp->spe--; 223 } else { 224 /* first wield otmp */ 225 if (otmp != uwep) { 226 if (uwep && uwep->cursed) { 227 /* Andreas Bormann */ 228 pline("Since your weapon is welded to your hand,"); 229 pline("you use the %s.", aobjnam(uwep, (char *) 0)); 230 otmp = uwep; 231 } else { 232 if (!otmp) 233 pline("You are now empty-handed."); 234 else if (otmp->cursed) 235 pline("The %s %s to your hand!", 236 aobjnam(otmp, "weld"), 237 (otmp->quan == 1) ? "itself" : "themselves"); 238 else 239 pline("You now wield %s.", doname(otmp)); 240 setuwep(otmp); 241 } 242 } 243 if (!otmp) 244 type = DUST; 245 else if (otmp->otyp == DAGGER || otmp->otyp == TWO_HANDED_SWORD || 246 otmp->otyp == CRYSKNIFE || 247 otmp->otyp == LONG_SWORD || otmp->otyp == AXE) { 248 type = ENGRAVE; 249 if ((int) otmp->spe <= -3) { 250 type = DUST; 251 pline("Your %s too dull for engraving.", 252 aobjnam(otmp, "are")); 253 if (oep && oep->engr_type != DUST) 254 return (1); 255 } 256 } else 257 type = DUST; 258 } 259 if (Levitation && type != BURN) { /* riv05!a3 */ 260 pline("You can't reach the floor!"); 261 return (1); 262 } 263 if (oep && oep->engr_type == DUST) { 264 pline("You wipe out the message that was written here."); 265 del_engr(oep); 266 oep = 0; 267 } 268 if (type == DUST && oep) { 269 pline("You cannot wipe out the message that is %s in the rock.", 270 (oep->engr_type == BURN) ? "burned" : "engraved"); 271 return (1); 272 } 273 pline("What do you want to %s on the floor here? ", 274 (type == ENGRAVE) ? "engrave" : (type == BURN) ? "burn" : "write"); 275 getlin(buf); 276 clrlin(); 277 spct = 0; 278 sp = buf; 279 while (*sp == ' ') 280 spct++, sp++; 281 len = strlen(sp); 282 if (!len || *buf == '\033') { 283 if (type == BURN) 284 otmp->spe++; 285 return (0); 286 } 287 switch (type) { 288 case DUST: 289 case BURN: 290 if (len > 15) { 291 multi = -(len / 10); 292 nomovemsg = "You finished writing."; 293 } 294 break; 295 case ENGRAVE: /* here otmp != 0 */ 296 { 297 int len2 = (otmp->spe + 3) * 2 + 1; 298 299 pline("Your %s dull.", aobjnam(otmp, "get")); 300 if (len2 < len) { 301 len = len2; 302 sp[len] = 0; 303 otmp->spe = -3; 304 nomovemsg = "You cannot engrave more."; 305 } else { 306 otmp->spe -= len / 2; 307 nomovemsg = "You finished engraving."; 308 } 309 multi = -len; 310 } 311 break; 312 } 313 if (oep) 314 len += strlen(oep->engr_txt) + spct; 315 ep = (struct engr *) alloc((unsigned) (sizeof(struct engr) + len + 1)); 316 ep->nxt_engr = head_engr; 317 head_engr = ep; 318 ep->engr_x = u.ux; 319 ep->engr_y = u.uy; 320 sp = (char *) (ep + 1); /* (char *)ep + sizeof(struct engr) */ 321 ep->engr_txt = sp; 322 if (oep) { 323 (void) strcpy(sp, oep->engr_txt); 324 (void) strcat(sp, buf); 325 del_engr(oep); 326 } else 327 (void) strcpy(sp, buf); 328 ep->engr_lth = len + 1; 329 ep->engr_type = type; 330 ep->engr_time = moves - multi; 331 332 /* kludge to protect pline against excessively long texts */ 333 if (len > BUFSZ - 20) 334 sp[BUFSZ - 20] = 0; 335 336 return (1); 337 } 338 339 void 340 save_engravings(int fd) 341 { 342 struct engr *ep = head_engr; 343 while (ep) { 344 if (!ep->engr_lth || !ep->engr_txt[0]) { 345 ep = ep->nxt_engr; 346 continue; 347 } 348 bwrite(fd, &(ep->engr_lth), sizeof(ep->engr_lth)); 349 bwrite(fd, ep, sizeof(struct engr) + ep->engr_lth); 350 ep = ep->nxt_engr; 351 } 352 bwrite(fd, nul, sizeof(unsigned)); 353 head_engr = 0; 354 } 355 356 void 357 rest_engravings(int fd) 358 { 359 struct engr *ep; 360 unsigned lth; 361 head_engr = 0; 362 while (1) { 363 mread(fd, (char *) <h, sizeof(unsigned)); 364 if (lth == 0) 365 return; 366 ep = (struct engr *) alloc(sizeof(struct engr) + lth); 367 mread(fd, (char *) ep, sizeof(struct engr) + lth); 368 ep->nxt_engr = head_engr; 369 ep->engr_txt = (char *) (ep + 1); /* Andreas Bormann */ 370 head_engr = ep; 371 } 372 } 373 374 void 375 del_engr(struct engr *ep) 376 { 377 struct engr *ept; 378 if (ep == head_engr) 379 head_engr = ep->nxt_engr; 380 else { 381 for (ept = head_engr; ept; ept = ept->nxt_engr) { 382 if (ept->nxt_engr == ep) { 383 ept->nxt_engr = ep->nxt_engr; 384 goto fnd; 385 } 386 } 387 impossible("Error in del_engr?"); 388 return; 389 fnd: ; 390 } 391 free((char *) ep); 392 } 393
Indexes created Mon Sep 22 13:09:51 GMT 2025