games/hack/hack.fight.c

   1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
   2 /* hack.fight.c - version 1.0.3 */
   3 /* $FreeBSD: src/games/hack/hack.fight.c,v 1.5 1999/11/16 10:26:36 marcel Exp $ */
   4 /* $DragonFly: src/games/hack/hack.fight.c,v 1.5 2006/08/21 19:45:32 pavalos Exp $ */
   5
   6 #include        "hack.h"
   7 extern struct permonst li_dog, dog, la_dog;
   8
   9 static boolean far_noise;
  10 static long noisetime;
  11
  12 static void     monstone(struct monst *);
  13
  14 /* hitmm returns 0 (miss), 1 (hit), or 2 (kill) */
  15 int
  16 hitmm(struct monst *magr, struct monst *mdef)
  17 {
  18 struct permonst *pa = magr->data, *pd = mdef->data;
  19 int ht;
  20 schar tmp;
  21 boolean vis;
  22         if(index("Eauy", pa->mlet)) return(0);
  23         if(magr->mfroz) return(0);              /* riv05!a3 */
  24         tmp = pd->ac + pa->mlevel;
  25         if(mdef->mconf || mdef->mfroz || mdef->msleep){
  26                 tmp += 4;
  27                 if(mdef->msleep) mdef->msleep = 0;
  28         }
  29         ht = (tmp > rnd(20));
  30         if(ht) mdef->msleep = 0;
  31         vis = (cansee(magr->mx,magr->my) && cansee(mdef->mx,mdef->my));
  32         if(vis){
  33                 char buf[BUFSZ];
  34                 if(mdef->mimic) seemimic(mdef);
  35                 if(magr->mimic) seemimic(magr);
  36                 sprintf(buf,"%s %s", Monnam(magr),
  37                         ht ? "hits" : "misses");
  38                 pline("%s %s.", buf, monnam(mdef));
  39         } else {
  40                 boolean far = (dist(magr->mx, magr->my) > 15);
  41                 if(far != far_noise || moves-noisetime > 10) {
  42                         far_noise = far;
  43                         noisetime = moves;
  44                         pline("You hear some noises%s.",
  45                                 far ? " in the distance" : "");
  46                 }
  47         }
  48         if(ht){
  49                 if(magr->data->mlet == 'c' && !magr->cham) {
  50                         magr->mhpmax += 3;
  51                         if(vis) pline("%s is turned to stone!", Monnam(mdef));
  52                         else if(mdef->mtame)
  53      pline("You have a peculiarly sad feeling for a moment, then it passes.");
  54                         monstone(mdef);
  55                         ht = 2;
  56                 } else
  57                 if((mdef->mhp -= d(pa->damn,pa->damd)) < 1) {
  58                         magr->mhpmax += 1 + rn2(pd->mlevel+1);
  59                         if(magr->mtame && magr->mhpmax > 8*pa->mlevel){
  60                                 if(pa == &li_dog) magr->data = pa = &dog;
  61                                 else if(pa == &dog) magr->data = pa = &la_dog;
  62                         }
  63                         if(vis) pline("%s is killed!", Monnam(mdef));
  64                         else if(mdef->mtame)
  65                 pline("You have a sad feeling for a moment, then it passes.");
  66                         mondied(mdef);
  67                         ht = 2;
  68                 }
  69         }
  70         return(ht);
  71 }
  72
  73 /* drop (perhaps) a cadaver and remove monster */
  74 void
  75 mondied(struct monst *mdef)
  76 {
  77 struct permonst *pd = mdef->data;
  78                 if(letter(pd->mlet) && rn2(3)){
  79                         mkobj_at(pd->mlet,mdef->mx,mdef->my);
  80                         if(cansee(mdef->mx,mdef->my)){
  81                                 unpmon(mdef);
  82                                 atl(mdef->mx,mdef->my,fobj->olet);
  83                         }
  84                         stackobj(fobj);
  85                 }
  86                 mondead(mdef);
  87 }
  88
  89 /* drop a rock and remove monster */
  90 static void
  91 monstone(struct monst *mdef)
  92 {
  93         if(index(mlarge, mdef->data->mlet))
  94                 mksobj_at(ENORMOUS_ROCK, mdef->mx, mdef->my);
  95         else
  96                 mksobj_at(ROCK, mdef->mx, mdef->my);
  97         if(cansee(mdef->mx, mdef->my)){
  98                 unpmon(mdef);
  99                 atl(mdef->mx,mdef->my,fobj->olet);
 100         }
 101         mondead(mdef);
 102 }
 103
 104 int
 105 fightm(struct monst *mtmp)
 106 {
 107 struct monst *mon;
 108         for(mon = fmon; mon; mon = mon->nmon) if(mon != mtmp) {
 109                 if(DIST(mon->mx,mon->my,mtmp->mx,mtmp->my) < 3)
 110                     if(rn2(4))
 111                         return(hitmm(mtmp,mon));
 112         }
 113         return(-1);
 114 }
 115
 116 /* u is hit by sth, but not a monster */
 117 bool
 118 thitu(int tlev, int dam, const char *name)
 119 {
 120 char buf[BUFSZ];
 121         setan(name,buf);
 122         if(u.uac + tlev <= rnd(20)) {
 123                 if(Blind) pline("It misses.");
 124                 else pline("You are almost hit by %s!", buf);
 125                 return(0);
 126         } else {
 127                 if(Blind) pline("You are hit!");
 128                 else pline("You are hit by %s!", buf);
 129                 losehp(dam,name);
 130                 return(1);
 131         }
 132 }
 133
 134 char mlarge[] = "bCDdegIlmnoPSsTUwY',&";
 135
 136 /* return TRUE if mon still alive */
 137 bool
 138 hmon(struct monst *mon, struct obj *obj, int thrown)
 139 {
 140         int tmp;
 141         bool hittxt = FALSE;
 142
 143         if(!obj){
 144                 tmp = rnd(2);   /* attack with bare hands */
 145                 if(mon->data->mlet == 'c' && !uarmg){
 146                         pline("You hit the cockatrice with your bare hands.");
 147                         pline("You turn to stone ...");
 148                         done_in_by(mon);
 149                 }
 150         } else if(obj->olet == WEAPON_SYM || obj->otyp == PICK_AXE) {
 151             if(obj == uwep && (obj->otyp > SPEAR || obj->otyp < BOOMERANG))
 152                 tmp = rnd(2);
 153             else {
 154                 if(index(mlarge, mon->data->mlet)) {
 155                         tmp = rnd(objects[obj->otyp].wldam);
 156                         if(obj->otyp == TWO_HANDED_SWORD) tmp += d(2,6);
 157                         else if(obj->otyp == FLAIL) tmp += rnd(4);
 158                 } else {
 159                         tmp = rnd(objects[obj->otyp].wsdam);
 160                 }
 161                 tmp += obj->spe;
 162                 if(!thrown && obj == uwep && obj->otyp == BOOMERANG
 163                  && !rn2(3)){
 164                   pline("As you hit %s, the boomerang breaks into splinters.",
 165                                 monnam(mon));
 166                         freeinv(obj);
 167                         setworn((struct obj *) 0, obj->owornmask);
 168                         obfree(obj, (struct obj *) 0);
 169                         tmp++;
 170                 }
 171             }
 172             if(mon->data->mlet == 'O' && obj->otyp == TWO_HANDED_SWORD &&
 173                 !strcmp(ONAME(obj), "Orcrist"))
 174                 tmp += rnd(10);
 175         } else  switch(obj->otyp) {
 176                 case HEAVY_IRON_BALL:
 177                         tmp = rnd(25); break;
 178                 case EXPENSIVE_CAMERA:
 179         pline("You succeed in destroying your camera. Congratulations!");
 180                         freeinv(obj);
 181                         if(obj->owornmask)
 182                                 setworn((struct obj *) 0, obj->owornmask);
 183                         obfree(obj, (struct obj *) 0);
 184                         return(TRUE);
 185                 case DEAD_COCKATRICE:
 186                         pline("You hit %s with the cockatrice corpse.",
 187                                 monnam(mon));
 188                         if(mon->data->mlet == 'c') {
 189                                 tmp = 1;
 190                                 hittxt = TRUE;
 191                                 break;
 192                         }
 193                         pline("%s is turned to stone!", Monnam(mon));
 194                         killed(mon);
 195                         return(FALSE);
 196                 case CLOVE_OF_GARLIC:           /* no effect against demons */
 197                         if(index(UNDEAD, mon->data->mlet))
 198                                 mon->mflee = 1;
 199                         tmp = 1;
 200                         break;
 201                 default:
 202                         /* non-weapons can damage because of their weight */
 203                         /* (but not too much) */
 204                         tmp = obj->owt/10;
 205                         if(tmp < 1) tmp = 1;
 206                         else tmp = rnd(tmp);
 207                         if(tmp > 6) tmp = 6;
 208                 }
 209
 210         /****** NOTE: perhaps obj is undefined!! (if !thrown && BOOMERANG) */
 211
 212         tmp += u.udaminc + dbon();
 213         if(u.uswallow) {
 214                 if((tmp -= u.uswldtim) <= 0) {
 215                         pline("Your arms are no longer able to hit.");
 216                         return(TRUE);
 217                 }
 218         }
 219         if(tmp < 1) tmp = 1;
 220         mon->mhp -= tmp;
 221         if(mon->mhp < 1) {
 222                 killed(mon);
 223                 return(FALSE);
 224         }
 225         if(mon->mtame && (!mon->mflee || mon->mfleetim)) {
 226                 mon->mflee = 1;                 /* Rick Richardson */
 227                 mon->mfleetim += 10*rnd(tmp);
 228         }
 229
 230         if(!hittxt) {
 231                 if(thrown)
 232                         /* this assumes that we cannot throw plural things */
 233                         hit( xname(obj)  /* or: objects[obj->otyp].oc_name */,
 234                                 mon, exclam(tmp) );
 235                 else if(Blind)
 236                         pline("You hit it.");
 237                 else
 238                         pline("You hit %s%s", monnam(mon), exclam(tmp));
 239         }
 240
 241         if(u.umconf && !thrown) {
 242                 if(!Blind) {
 243                         pline("Your hands stop glowing blue.");
 244                         if(!mon->mfroz && !mon->msleep)
 245                                 pline("%s appears confused.",Monnam(mon));
 246                 }
 247                 mon->mconf = 1;
 248                 u.umconf = 0;
 249         }
 250         return(TRUE);   /* mon still alive */
 251 }
 252
 253 /* try to attack; return FALSE if monster evaded */
 254 /* u.dx and u.dy must be set */
 255 bool
 256 attack(struct monst *mtmp)
 257 {
 258         schar tmp;
 259         boolean malive = TRUE;
 260         struct permonst *mdat;
 261         mdat = mtmp->data;
 262
 263         u_wipe_engr(3);   /* andrew@orca: prevent unlimited pick-axe attacks */
 264
 265         if(mdat->mlet == 'L' && !mtmp->mfroz && !mtmp->msleep &&
 266            !mtmp->mconf && mtmp->mcansee && !rn2(7) &&
 267            (m_move(mtmp, 0) == 2 /* he died */ || /* he moved: */
 268                 mtmp->mx != u.ux+u.dx || mtmp->my != u.uy+u.dy))
 269                 return(FALSE);
 270
 271         if(mtmp->mimic){
 272                 if(!u.ustuck && !mtmp->mflee) u.ustuck = mtmp;
 273                 switch(levl[u.ux+u.dx][u.uy+u.dy].scrsym){
 274                 case '+':
 275                         pline("The door actually was a Mimic.");
 276                         break;
 277                 case '$':
 278                         pline("The chest was a Mimic!");
 279                         break;
 280                 default:
 281                         pline("Wait! That's a Mimic!");
 282                 }
 283                 wakeup(mtmp);   /* clears mtmp->mimic */
 284                 return(TRUE);
 285         }
 286
 287         wakeup(mtmp);
 288
 289         if(mtmp->mhide && mtmp->mundetected){
 290                 struct obj *obj;
 291
 292                 mtmp->mundetected = 0;
 293                 if((obj = o_at(mtmp->mx,mtmp->my)) && !Blind)
 294                         pline("Wait! There's a %s hiding under %s!",
 295                                 mdat->mname, doname(obj));
 296                 return(TRUE);
 297         }
 298
 299         tmp = u.uluck + u.ulevel + mdat->ac + abon();
 300         if(uwep) {
 301                 if(uwep->olet == WEAPON_SYM || uwep->otyp == PICK_AXE)
 302                         tmp += uwep->spe;
 303                 if(uwep->otyp == TWO_HANDED_SWORD) tmp -= 1;
 304                 else if(uwep->otyp == DAGGER) tmp += 2;
 305                 else if(uwep->otyp == CRYSKNIFE) tmp += 3;
 306                 else if(uwep->otyp == SPEAR &&
 307                         index("XDne", mdat->mlet)) tmp += 2;
 308         }
 309         if(mtmp->msleep) {
 310                 mtmp->msleep = 0;
 311                 tmp += 2;
 312         }
 313         if(mtmp->mfroz) {
 314                 tmp += 4;
 315                 if(!rn2(10)) mtmp->mfroz = 0;
 316         }
 317         if(mtmp->mflee) tmp += 2;
 318         if(u.utrap) tmp -= 3;
 319
 320         /* with a lot of luggage, your agility diminishes */
 321         tmp -= (inv_weight() + 40)/20;
 322
 323         if(tmp <= rnd(20) && !u.uswallow){
 324                 if(Blind) pline("You miss it.");
 325                 else pline("You miss %s.",monnam(mtmp));
 326         } else {
 327                 /* we hit the monster; be careful: it might die! */
 328
 329                 if((malive = hmon(mtmp,uwep,0)) == TRUE) {
 330                 /* monster still alive */
 331                         if(!rn2(25) && mtmp->mhp < mtmp->mhpmax/2) {
 332                                 mtmp->mflee = 1;
 333                                 if(!rn2(3)) mtmp->mfleetim = rnd(100);
 334                                 if(u.ustuck == mtmp && !u.uswallow)
 335                                         u.ustuck = 0;
 336                         }
 337 #ifndef NOWORM
 338                         if(mtmp->wormno)
 339                                 cutworm(mtmp, u.ux+u.dx, u.uy+u.dy,
 340                                         uwep ? uwep->otyp : 0);
 341 #endif /* NOWORM */
 342                 }
 343                 if(mdat->mlet == 'a') {
 344                         if(rn2(2)) {
 345                                 pline("You are splashed by the blob's acid!");
 346                                 losehp_m(rnd(6), mtmp);
 347                                 if(!rn2(30)) corrode_armor();
 348                         }
 349                         if(!rn2(6)) corrode_weapon();
 350                 }
 351         }
 352         if(malive && mdat->mlet == 'E' && canseemon(mtmp)
 353            && !mtmp->mcan && rn2(3)) {
 354             if(mtmp->mcansee) {
 355               pline("You are frozen by the floating eye's gaze!");
 356               nomul((u.ulevel > 6 || rn2(4)) ? rn1(20,-21) : -200);
 357             } else {
 358               pline("The blinded floating eye cannot defend itself.");
 359               if(!rn2(500)) if((int)u.uluck > LUCKMIN) u.uluck--;
 360             }
 361         }
 362         return(TRUE);
 363 }