/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ /* hack.mon.c - version 1.0.3 */ #include "hack.h" #include "hack.mfndpos.h" #define NULL (char *) 0 extern struct monst *makemon(); extern struct obj *mkobj_at(); int warnlevel; /* used by movemon and dochugw */ long lastwarntime; int lastwarnlev; char *warnings[] = { "white", "pink", "red", "ruby", "purple", "black" }; movemon() { register struct monst *mtmp; register int fr; warnlevel = 0; while(1) { /* find a monster that we haven't treated yet */ /* note that mtmp or mtmp->nmon might get killed while mtmp moves, so we cannot just walk down the chain (even new monsters might get created!) */ for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) if(mtmp->mlstmv < moves) goto next_mon; /* treated all monsters */ break; next_mon: mtmp->mlstmv = moves; /* most monsters drown in pools */ { boolean inpool, iseel; inpool = (levl[mtmp->mx][mtmp->my].typ == POOL); iseel = (mtmp->data->mlet == ';'); if(inpool && !iseel) { if(cansee(mtmp->mx,mtmp->my)) pline("%s drowns.", Monnam(mtmp)); mondead(mtmp); continue; } /* but eels have a difficult time outside */ if(iseel && !inpool) { if(mtmp->mhp > 1) mtmp->mhp--; mtmp->mflee = 1; mtmp->mfleetim += 2; } } if(mtmp->mblinded && !--mtmp->mblinded) mtmp->mcansee = 1; if(mtmp->mfleetim && !--mtmp->mfleetim) mtmp->mflee = 0; if(mtmp->mimic) continue; if(mtmp->mspeed != MSLOW || !(moves%2)){ /* continue if the monster died fighting */ fr = -1; if(Conflict && cansee(mtmp->mx,mtmp->my) && (fr = fightm(mtmp)) == 2) continue; if(fr<0 && dochugw(mtmp)) continue; } if(mtmp->mspeed == MFAST && dochugw(mtmp)) continue; } warnlevel -= u.ulevel; if(warnlevel >= SIZE(warnings)) warnlevel = SIZE(warnings)-1; if(warnlevel >= 0) if(warnlevel > lastwarnlev || moves > lastwarntime + 5){ register char *rr; /* KLUDGE -- can't switch on longs!! switch(Warning & (LEFT_RING | RIGHT_RING)){ case LEFT_RING: rr = "Your left ring glows"; break; case RIGHT_RING: rr = "Your right ring glows"; break; case LEFT_RING | RIGHT_RING: rr = "Both your rings glow"; break; default: rr = "Your fingertips glow"; break; } */ long swtval = Warning & (LEFT_RING | RIGHT_RING); if(swtval == LEFT_RING) rr = "Your left ring glows"; else if(swtval == RIGHT_RING) rr = "Your right ring glows"; else if(swtval == LEFT_RING | RIGHT_RING) rr = "Both your rings glow"; else rr = "Your fingertips glow"; pline("%s %s!", rr, warnings[warnlevel]); lastwarntime = moves; lastwarnlev = warnlevel; } dmonsfree(); /* remove all dead monsters */ } justswld(mtmp,name) register struct monst *mtmp; char *name; { mtmp->mx = u.ux; mtmp->my = u.uy; u.ustuck = mtmp; pmon(mtmp); kludge("%s swallows you!",name); more(); seeoff(1); u.uswallow = 1; u.uswldtim = 0; swallowed(); } youswld(mtmp,dam,die,name) register struct monst *mtmp; register dam,die; char *name; { if(mtmp != u.ustuck) return; kludge("%s digests you!",name); u.uhp -= dam; if(u.uswldtim++ >= die){ /* a3 */ pline("It totally digests you!"); u.uhp = -1; } if(u.uhp < 1) done_in_by(mtmp); /* flags.botlx = 1; /* should we show status line ? */ } dochugw(mtmp) register struct monst *mtmp; { register x = mtmp->mx; register y = mtmp->my; register d = dochug(mtmp); register dd; if(!d) /* monster still alive */ if(Warning) if(!mtmp->mpeaceful) if(mtmp->data->mlevel > warnlevel) if((dd = dist(mtmp->mx,mtmp->my)) < dist(x,y)) if(dd < 100) if(!canseemon(mtmp)) warnlevel = mtmp->data->mlevel; return(d); } /* returns 1 if monster died moving, 0 otherwise */ dochug(mtmp) register struct monst *mtmp; { register struct permonst *mdat; register tmp, nearby, scared; if(mtmp->cham && !rn2(6)) (void) newcham(mtmp, &mons[dlevel+14+rn2(CMNUM-14-dlevel)]); mdat = mtmp->data; if(mdat->mlevel < 0) panic("bad monster %c (%d)",mdat->mlet,mdat->mlevel); /* regenerate monsters */ if((!(moves%20) || index(MREGEN, mdat->mlet)) && mtmp->mhp < mtmp->mhpmax) mtmp->mhp++; if(mtmp->mfroz) return(0); /* frozen monsters don't do anything */ if(mtmp->msleep) { /* wake up, or get out of here. */ /* ettins are hard to surprise */ /* Nymphs and Leprechauns do not easily wake up */ if(cansee(mtmp->mx,mtmp->my) && (!Stealth || (mdat->mlet == 'e' && rn2(10))) && (!index("NL",mdat->mlet) || !rn2(50)) && (Aggravate_monster || index("d1", mdat->mlet) || (!rn2(7) && !mtmp->mimic))) mtmp->msleep = 0; else return(0); } /* not frozen or sleeping: wipe out texts written in the dust */ wipe_engr_at(mtmp->mx, mtmp->my, 1); /* confused monsters get unconfused with small probability */ if(mtmp->mconf && !rn2(50)) mtmp->mconf = 0; /* some monsters teleport */ if(mtmp->mflee && index("tNL", mdat->mlet) && !rn2(40)){ rloc(mtmp); return(0); } if(mdat->mmove < rnd(6)) return(0); /* fleeing monsters might regain courage */ if(mtmp->mflee && !mtmp->mfleetim && mtmp->mhp == mtmp->mhpmax && !rn2(25)) mtmp->mflee = 0; nearby = (dist(mtmp->mx, mtmp->my) < 3); scared = (nearby && (sengr_at("Elbereth", u.ux, u.uy) || sobj_at(SCR_SCARE_MONSTER, u.ux, u.uy))); if(scared && !mtmp->mflee) { mtmp->mflee = 1; mtmp->mfleetim = (rn2(7) ? rnd(10) : rnd(100)); } if(!nearby || mtmp->mflee || mtmp->mconf || (mtmp->minvis && !rn2(3)) || (index("BIuy", mdat->mlet) && !rn2(4)) || (mdat->mlet == 'L' && !u.ugold && (mtmp->mgold || rn2(2))) || (!mtmp->mcansee && !rn2(4)) || mtmp->mpeaceful ) { tmp = m_move(mtmp,0); /* 2: monster died moving */ if(tmp == 2 || (tmp && mdat->mmove <= 12)) return(tmp == 2); } if(!index("Ea", mdat->mlet) && nearby && !mtmp->mpeaceful && u.uhp > 0 && !scared) { if(mhitu(mtmp)) return(1); /* monster died (e.g. 'y' or 'F') */ } /* extra movement for fast monsters */ if(mdat->mmove-12 > rnd(12)) tmp = m_move(mtmp,1); return(tmp == 2); } m_move(mtmp,after) register struct monst *mtmp; { register struct monst *mtmp2; register nx,ny,omx,omy,appr,nearer,cnt,i,j; xchar gx,gy,nix,niy,chcnt; schar chi; boolean likegold, likegems, likeobjs; char msym = mtmp->data->mlet; schar mmoved = 0; /* not strictly nec.: chi >= 0 will do */ coord poss[9]; int info[9]; if(mtmp->mfroz || mtmp->msleep) return(0); if(mtmp->mtrapped) { i = mintrap(mtmp); if(i == 2) return(2); /* he died */ if(i == 1) return(0); /* still in trap, so didnt move */ } if(mtmp->mhide && o_at(mtmp->mx,mtmp->my) && rn2(10)) return(0); /* do not leave hiding place */ #ifndef NOWORM if(mtmp->wormno) goto not_special; #endif NOWORM /* my dog gets a special treatment */ if(mtmp->mtame) { return( dog_move(mtmp, after) ); } /* likewise for shopkeeper */ if(mtmp->isshk) { mmoved = shk_move(mtmp); if(mmoved >= 0) goto postmov; mmoved = 0; /* follow player outside shop */ } /* and for the guard */ if(mtmp->isgd) { mmoved = gd_move(); goto postmov; } /* teleport if that lies in our nature ('t') or when badly wounded ('1') */ if((msym == 't' && !rn2(5)) || (msym == '1' && (mtmp->mhp < 7 || (!xdnstair && !rn2(5)) || levl[u.ux][u.uy].typ == STAIRS))) { if(mtmp->mhp < 7 || (msym == 't' && rn2(2))) rloc(mtmp); else mnexto(mtmp); mmoved = 1; goto postmov; } /* spit fire ('D') or use a wand ('1') when appropriate */ if(index("D1", msym)) inrange(mtmp); if(msym == 'U' && !mtmp->mcan && canseemon(mtmp) && mtmp->mcansee && rn2(5)) { if(!Confusion) pline("%s's gaze has confused you!", Monnam(mtmp)); else pline("You are getting more and more confused."); if(rn2(3)) mtmp->mcan = 1; Confusion += d(3,4); /* timeout */ } not_special: if(!mtmp->mflee && u.uswallow && u.ustuck != mtmp) return(1); appr = 1; if(mtmp->mflee) appr = -1; if(mtmp->mconf || Invis || !mtmp->mcansee || (index("BIy", msym) && !rn2(3))) appr = 0; omx = mtmp->mx; omy = mtmp->my; gx = u.ux; gy = u.uy; if(msym == 'L' && appr == 1 && mtmp->mgold > u.ugold) appr = -1; /* random criterion for 'smell' or track finding ability should use mtmp->msmell or sth */ if(msym == '@' || ('a' <= msym && msym <= 'z')) { extern coord *gettrack(); register coord *cp; schar mroom; mroom = inroom(omx,omy); if(mroom < 0 || mroom != inroom(u.ux,u.uy)){ cp = gettrack(omx,omy); if(cp){ gx = cp->x; gy = cp->y; } } } /* look for gold or jewels nearby */ likegold = (index("LOD", msym) != NULL); likegems = (index("ODu", msym) != NULL); likeobjs = mtmp->mhide; #define SRCHRADIUS 25 { xchar mind = SRCHRADIUS; /* not too far away */ register int dd; if(likegold){ register struct gold *gold; for(gold = fgold; gold; gold = gold->ngold) if((dd = DIST(omx,omy,gold->gx,gold->gy)) < mind){ mind = dd; gx = gold->gx; gy = gold->gy; } } if(likegems || likeobjs){ register struct obj *otmp; for(otmp = fobj; otmp; otmp = otmp->nobj) if(likeobjs || otmp->olet == GEM_SYM) if(msym != 'u' || objects[otmp->otyp].g_val != 0) if((dd = DIST(omx,omy,otmp->ox,otmp->oy)) < mind){ mind = dd; gx = otmp->ox; gy = otmp->oy; } } if(mind < SRCHRADIUS && appr == -1) { if(dist(omx,omy) < 10) { gx = u.ux; gy = u.uy; } else appr = 1; } } nix = omx; niy = omy; cnt = mfndpos(mtmp,poss,info, msym == 'u' ? NOTONL : (msym == '@' || msym == '1') ? (ALLOW_SSM | ALLOW_TRAPS) : index(UNDEAD, msym) ? NOGARLIC : ALLOW_TRAPS); /* ALLOW_ROCK for some monsters ? */ chcnt = 0; chi = -1; for(i=0; imtrack[j].x && ny == mtmp->mtrack[j].y) if(rn2(4*(cnt-j))) goto nxti; #ifdef STUPID /* some stupid compilers think that this is too complicated */ { int d1 = DIST(nx,ny,gx,gy); int d2 = DIST(nix,niy,gx,gy); nearer = (d1 < d2); } #else nearer = (DIST(nx,ny,gx,gy) < DIST(nix,niy,gx,gy)); #endif STUPID if((appr == 1 && nearer) || (appr == -1 && !nearer) || !mmoved || (!appr && !rn2(++chcnt))){ nix = nx; niy = ny; chi = i; mmoved = 1; } nxti: ; } if(mmoved){ if(info[chi] & ALLOW_M){ mtmp2 = m_at(nix,niy); if(hitmm(mtmp,mtmp2) == 1 && rn2(4) && hitmm(mtmp2,mtmp) == 2) return(2); return(0); } if(info[chi] & ALLOW_U){ (void) hitu(mtmp, d(mtmp->data->damn, mtmp->data->damd)+1); return(0); } mtmp->mx = nix; mtmp->my = niy; for(j=MTSZ-1; j>0; j--) mtmp->mtrack[j] = mtmp->mtrack[j-1]; mtmp->mtrack[0].x = omx; mtmp->mtrack[0].y = omy; #ifndef NOWORM if(mtmp->wormno) worm_move(mtmp); #endif NOWORM } else { if(msym == 'u' && rn2(2)){ rloc(mtmp); return(0); } #ifndef NOWORM if(mtmp->wormno) worm_nomove(mtmp); #endif NOWORM } postmov: if(mmoved == 1) { if(mintrap(mtmp) == 2) /* he died */ return(2); if(likegold) mpickgold(mtmp); if(likegems) mpickgems(mtmp); if(mtmp->mhide) mtmp->mundetected = 1; } pmon(mtmp); return(mmoved); } mpickgold(mtmp) register struct monst *mtmp; { register struct gold *gold; while(gold = g_at(mtmp->mx, mtmp->my)){ mtmp->mgold += gold->amount; freegold(gold); if(levl[mtmp->mx][mtmp->my].scrsym == '$') newsym(mtmp->mx, mtmp->my); } } mpickgems(mtmp) register struct monst *mtmp; { register struct obj *otmp; for(otmp = fobj; otmp; otmp = otmp->nobj) if(otmp->olet == GEM_SYM) if(otmp->ox == mtmp->mx && otmp->oy == mtmp->my) if(mtmp->data->mlet != 'u' || objects[otmp->otyp].g_val != 0){ freeobj(otmp); mpickobj(mtmp, otmp); if(levl[mtmp->mx][mtmp->my].scrsym == GEM_SYM) newsym(mtmp->mx, mtmp->my); /* %% */ return; /* pick only one object */ } } /* return number of acceptable neighbour positions */ mfndpos(mon,poss,info,flag) register struct monst *mon; coord poss[9]; int info[9], flag; { register int x,y,nx,ny,cnt = 0,ntyp; register struct monst *mtmp; int nowtyp; boolean pool; x = mon->mx; y = mon->my; nowtyp = levl[x][y].typ; pool = (mon->data->mlet == ';'); nexttry: /* eels prefer the water, but if there is no water nearby, they will crawl over land */ if(mon->mconf) { flag |= ALLOW_ALL; flag &= ~NOTONL; } for(nx = x-1; nx <= x+1; nx++) for(ny = y-1; ny <= y+1; ny++) if(nx != x || ny != y) if(isok(nx,ny)) if(!IS_ROCK(ntyp = levl[nx][ny].typ)) if(!(nx != x && ny != y && (nowtyp == DOOR || ntyp == DOOR))) if((ntyp == POOL) == pool) { info[cnt] = 0; if(nx == u.ux && ny == u.uy){ if(!(flag & ALLOW_U)) continue; info[cnt] = ALLOW_U; } else if(mtmp = m_at(nx,ny)){ if(!(flag & ALLOW_M)) continue; info[cnt] = ALLOW_M; if(mtmp->mtame){ if(!(flag & ALLOW_TM)) continue; info[cnt] |= ALLOW_TM; } } if(sobj_at(CLOVE_OF_GARLIC, nx, ny)) { if(flag & NOGARLIC) continue; info[cnt] |= NOGARLIC; } if(sobj_at(SCR_SCARE_MONSTER, nx, ny) || (!mon->mpeaceful && sengr_at("Elbereth", nx, ny))) { if(!(flag & ALLOW_SSM)) continue; info[cnt] |= ALLOW_SSM; } if(sobj_at(ENORMOUS_ROCK, nx, ny)) { if(!(flag & ALLOW_ROCK)) continue; info[cnt] |= ALLOW_ROCK; } if(!Invis && online(nx,ny)){ if(flag & NOTONL) continue; info[cnt] |= NOTONL; } /* we cannot avoid traps of an unknown kind */ { register struct trap *ttmp = t_at(nx, ny); register int tt; if(ttmp) { tt = 1 << ttmp->ttyp; if(mon->mtrapseen & tt){ if(!(flag & tt)) continue; info[cnt] |= tt; } } } poss[cnt].x = nx; poss[cnt].y = ny; cnt++; } if(!cnt && pool && nowtyp != POOL) { pool = FALSE; goto nexttry; } return(cnt); } dist(x,y) int x,y; { return((x-u.ux)*(x-u.ux) + (y-u.uy)*(y-u.uy)); } poisoned(string, pname) register char *string, *pname; { register int i; if(Blind) pline("It was poisoned."); else pline("The %s was poisoned!",string); if(Poison_resistance) { pline("The poison doesn't seem to affect you."); return; } i = rn2(10); if(i == 0) { u.uhp = -1; pline("I am afraid the poison was deadly ..."); } else if(i <= 5) { losestr(rn1(3,3)); } else { losehp(rn1(10,6), pname); } if(u.uhp < 1) { killer = pname; done("died"); } } mondead(mtmp) register struct monst *mtmp; { relobj(mtmp,1); unpmon(mtmp); relmon(mtmp); unstuck(mtmp); if(mtmp->isshk) shkdead(mtmp); if(mtmp->isgd) gddead(); #ifndef NOWORM if(mtmp->wormno) wormdead(mtmp); #endif NOWORM monfree(mtmp); } /* called when monster is moved to larger structure */ replmon(mtmp,mtmp2) register struct monst *mtmp, *mtmp2; { relmon(mtmp); monfree(mtmp); mtmp2->nmon = fmon; fmon = mtmp2; if(u.ustuck == mtmp) u.ustuck = mtmp2; if(mtmp2->isshk) replshk(mtmp,mtmp2); if(mtmp2->isgd) replgd(mtmp,mtmp2); } relmon(mon) register struct monst *mon; { register struct monst *mtmp; if(mon == fmon) fmon = fmon->nmon; else { for(mtmp = fmon; mtmp->nmon != mon; mtmp = mtmp->nmon) ; mtmp->nmon = mon->nmon; } } /* we do not free monsters immediately, in order to have their name available shortly after their demise */ struct monst *fdmon; /* chain of dead monsters, need not to be saved */ monfree(mtmp) register struct monst *mtmp; { mtmp->nmon = fdmon; fdmon = mtmp; } dmonsfree(){ register struct monst *mtmp; while(mtmp = fdmon){ fdmon = mtmp->nmon; free((char *) mtmp); } } unstuck(mtmp) register struct monst *mtmp; { if(u.ustuck == mtmp) { if(u.uswallow){ u.ux = mtmp->mx; u.uy = mtmp->my; u.uswallow = 0; setsee(); docrt(); } u.ustuck = 0; } } killed(mtmp) register struct monst *mtmp; { #ifdef lint #define NEW_SCORING #endif lint register int tmp,tmp2,nk,x,y; register struct permonst *mdat = mtmp->data; extern long newuexp(); if(mtmp->cham) mdat = PM_CHAMELEON; if(Blind) pline("You destroy it!"); else { pline("You destroy %s!", mtmp->mtame ? amonnam(mtmp, "poor") : monnam(mtmp)); } if(u.umconf) { if(!Blind) pline("Your hands stop glowing blue."); u.umconf = 0; } /* count killed monsters */ #define MAXMONNO 100 nk = 1; /* in case we cannot find it in mons */ tmp = mdat - mons; /* index in mons array (if not 'd', '@', ...) */ if(tmp >= 0 && tmp < CMNUM+2) { extern char fut_geno[]; u.nr_killed[tmp]++; if((nk = u.nr_killed[tmp]) > MAXMONNO && !index(fut_geno, mdat->mlet)) charcat(fut_geno, mdat->mlet); } /* punish bad behaviour */ if(mdat->mlet == '@') Telepat = 0, u.uluck -= 2; if(mtmp->mpeaceful || mtmp->mtame) u.uluck--; if(mdat->mlet == 'u') u.uluck -= 5; if((int)u.uluck < LUCKMIN) u.uluck = LUCKMIN; /* give experience points */ tmp = 1 + mdat->mlevel * mdat->mlevel; if(mdat->ac < 3) tmp += 2*(7 - mdat->ac); if(index("AcsSDXaeRTVWU&In:P", mdat->mlet)) tmp += 2*mdat->mlevel; if(index("DeV&P",mdat->mlet)) tmp += (7*mdat->mlevel); if(mdat->mlevel > 6) tmp += 50; if(mdat->mlet == ';') tmp += 1000; #ifdef NEW_SCORING /* ------- recent addition: make nr of points decrease when this is not the first of this kind */ { int ul = u.ulevel; int ml = mdat->mlevel; if(ul < 14) /* points are given based on present and future level */ for(tmp2 = 0; !tmp2 || ul + tmp2 <= ml; tmp2++) if(u.uexp + 1 + (tmp + ((tmp2 <= 0) ? 0 : 4<<(tmp2-1)))/nk >= 10*pow((unsigned)(ul-1))) if(++ul == 14) break; tmp2 = ml - ul -1; tmp = (tmp + ((tmp2 < 0) ? 0 : 4<= newuexp()){ pline("Welcome to experience level %u.", ++u.ulevel); tmp = rnd(10); if(tmp < 3) tmp = rnd(10); u.uhpmax += tmp; u.uhp += tmp; flags.botl = 1; } /* dispose of monster and make cadaver */ x = mtmp->mx; y = mtmp->my; mondead(mtmp); tmp = mdat->mlet; if(tmp == 'm') { /* he killed a minotaur, give him a wand of digging */ /* note: the dead minotaur will be on top of it! */ mksobj_at(WAN_DIGGING, x, y); /* if(cansee(x,y)) atl(x,y,fobj->olet); */ stackobj(fobj); } else #ifndef NOWORM if(tmp == 'w') { mksobj_at(WORM_TOOTH, x, y); stackobj(fobj); } else #endif NOWORM if(!letter(tmp) || (!index("mw", tmp) && !rn2(3))) tmp = 0; if(ACCESSIBLE(levl[x][y].typ)) /* might be mimic in wall or dead eel*/ if(x != u.ux || y != u.uy) /* might be here after swallowed */ if(index("NTVm&",mdat->mlet) || rn2(5)) { register struct obj *obj2 = mkobj_at(tmp,x,y); if(cansee(x,y)) atl(x,y,obj2->olet); stackobj(obj2); } } kludge(str,arg) register char *str,*arg; { if(Blind) { if(*str == '%') pline(str,"It"); else pline(str,"it"); } else pline(str,arg); } rescham() /* force all chameleons to become normal */ { register struct monst *mtmp; for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) if(mtmp->cham) { mtmp->cham = 0; (void) newcham(mtmp, PM_CHAMELEON); } } newcham(mtmp,mdat) /* make a chameleon look like a new monster */ /* returns 1 if the monster actually changed */ register struct monst *mtmp; register struct permonst *mdat; { register mhp, hpn, hpd; if(mdat == mtmp->data) return(0); /* still the same monster */ #ifndef NOWORM if(mtmp->wormno) wormdead(mtmp); /* throw tail away */ #endif NOWORM hpn = mtmp->mhp; hpd = (mtmp->data->mlevel)*8; if(!hpd) hpd = 4; mtmp->data = mdat; mhp = (mdat->mlevel)*8; /* new hp: same fraction of max as before */ mtmp->mhp = 2 + (hpn*mhp)/hpd; hpn = mtmp->mhpmax; mtmp->mhpmax = 2 + (hpn*mhp)/hpd; mtmp->minvis = (mdat->mlet == 'I') ? 1 : 0; #ifndef NOWORM if(mdat->mlet == 'w' && getwn(mtmp)) initworm(mtmp); /* perhaps we should clear mtmp->mtame here? */ #endif NOWORM unpmon(mtmp); /* necessary for 'I' and to force pmon */ pmon(mtmp); return(1); } mnexto(mtmp) /* Make monster mtmp next to you (if possible) */ struct monst *mtmp; { extern coord enexto(); coord mm; mm = enexto(u.ux, u.uy); mtmp->mx = mm.x; mtmp->my = mm.y; pmon(mtmp); } ishuman(mtmp) register struct monst *mtmp; { return(mtmp->data->mlet == '@'); } setmangry(mtmp) register struct monst *mtmp; { if(!mtmp->mpeaceful) return; if(mtmp->mtame) return; mtmp->mpeaceful = 0; if(ishuman(mtmp)) pline("%s gets angry!", Monnam(mtmp)); } /* not one hundred procent correct: now a snake may hide under an invisible object */ canseemon(mtmp) register struct monst *mtmp; { return((!mtmp->minvis || See_invisible) && (!mtmp->mhide || !o_at(mtmp->mx,mtmp->my)) && cansee(mtmp->mx, mtmp->my)); }