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Almathera Ten Pack 2: CDPD 1
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190
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nethack
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twee.zoo
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dogmove.c
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C/C++ Source or Header
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1988-07-11
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8KB
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303 lines
/* SCCS Id: @(#)dogmove.c 1.4 87/08/08
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* dogmove.c - version 1.0 */
#include "hack.h"
#include "mfndpos.h"
#include "mkroom.h"
#include "edog.h"
/* return 0 (no move), 1 (move) or 2 (dead) */
dog_move(mtmp, after) register struct monst *mtmp; {
#ifndef REGBUG
register
#endif
int nx,ny,omx,omy,appr,nearer,j;
int udist,chi,i,whappr;
register struct monst *mtmp2;
register struct permonst *mdat = mtmp->data;
register struct edog *edog = EDOG(mtmp);
struct obj *obj;
struct trap *trap;
xchar cnt,chcnt,nix,niy;
schar dogroom,uroom;
xchar gx,gy,gtyp,otyp; /* current goal */
coord poss[9];
long info[9];
#define GDIST(x,y) ((x-gx)*(x-gx) + (y-gy)*(y-gy))
#define DDIST(x,y) ((x-omx)*(x-omx) + (y-omy)*(y-omy))
if(moves <= edog->eattime) return(0); /* dog is still eating */
omx = mtmp->mx;
omy = mtmp->my;
whappr = (moves - EDOG(mtmp)->whistletime < 5);
if(moves > edog->hungrytime + 500 && !mtmp->mconf){
mtmp->mconf = 1;
mtmp->mhpmax /= 3;
if(mtmp->mhp > mtmp->mhpmax)
mtmp->mhp = mtmp->mhpmax;
if(cansee(omx,omy))
pline("%s is confused from hunger.", Monnam(mtmp));
else pline("You feel worried about %s.", monnam(mtmp));
} else
if(moves > edog->hungrytime + 750 || mtmp->mhp < 1){
#ifdef WALKIES
if(mtmp->mleashed) {
mtmp->mleashed = 0;
pline("Your leash goes slack...");
}
#endif
if(cansee(omx,omy))
pline("%s dies%s.", Monnam(mtmp),
(mtmp->mhp >= 1) ? "" : " from hunger");
else
pline("You have a sad feeling for a moment, then it passes.");
mondied(mtmp);
return(2);
}
dogroom = inroom(omx,omy);
uroom = inroom(u.ux,u.uy);
udist = dist(omx,omy);
/* maybe we tamed him while being swallowed --jgm */
if(!udist) return(0);
/* if we are carrying sth then we drop it (perhaps near @) */
/* Note: if apport == 1 then our behaviour is independent of udist */
if(mtmp->minvent){
if(!rn2(udist) || !rn2((int) edog->apport))
if(rn2(10) < edog->apport){
relobj(mtmp, (int) mtmp->minvis);
if(edog->apport > 1) edog->apport--;
edog->dropdist = udist; /* hpscdi!jon */
edog->droptime = moves;
}
} else {
if(obj = o_at(omx,omy)) if(!index("0_", obj->olet)){
if((otyp = dogfood(obj)) <= CADAVER){
nix = omx;
niy = omy;
goto eatobj;
}
if(obj->owt < 10*mtmp->data->mlevel)
if(rn2(20) < edog->apport+3)
if(rn2(udist) || !rn2((int) edog->apport)){
freeobj(obj);
unpobj(obj);
/* if(levl[omx][omy].scrsym == obj->olet)
newsym(omx,omy); */
mpickobj(mtmp,obj);
}
}
}
gtyp = UNDEF; /* no goal as yet */
gx = gy = 0; /* suppress 'used before set' message */
#ifdef WALKIES
/* If he's on a leash, he's not going anywhere. */
if(mtmp->mleashed) {
gtyp = APPORT;
gx = u.ux;
gy = u.uy;
} else
#endif
/* first we look for food */
for(obj = fobj; obj; obj = obj->nobj) {
otyp = dogfood(obj);
if(otyp > gtyp || otyp == UNDEF) continue;
if(inroom(obj->ox,obj->oy) != dogroom) continue;
if(otyp < MANFOOD &&
(dogroom >= 0 || DDIST(obj->ox,obj->oy) < 10)) {
if(otyp < gtyp || (otyp == gtyp &&
DDIST(obj->ox,obj->oy) < DDIST(gx,gy))){
gx = obj->ox;
gy = obj->oy;
gtyp = otyp;
}
} else
if(gtyp == UNDEF && dogroom >= 0 &&
uroom == dogroom &&
!mtmp->minvent && edog->apport > rn2(8)){
gx = obj->ox;
gy = obj->oy;
gtyp = APPORT;
}
}
if(gtyp == UNDEF ||
(gtyp != DOGFOOD && gtyp != APPORT && moves < edog->hungrytime)){
if(dogroom < 0 || dogroom == uroom){
gx = u.ux;
gy = u.uy;
#ifndef QUEST
} else {
int tmp = rooms[dogroom].fdoor;
cnt = rooms[dogroom].doorct;
gx = gy = FAR; /* random, far away */
while(cnt--){
if(dist(gx,gy) >
dist(doors[tmp].x, doors[tmp].y)){
gx = doors[tmp].x;
gy = doors[tmp].y;
}
tmp++;
}
/* here gx == FAR e.g. when dog is in a vault */
if(gx == FAR || (gx == omx && gy == omy)){
gx = u.ux;
gy = u.uy;
}
#endif
}
appr = (udist >= 9) ? 1 : (mtmp->mflee) ? -1 : 0;
if(after && udist <= 4 && gx == u.ux && gy == u.uy)
return(0);
if(udist > 1){
if(!IS_ROOM(RM_TYP(levl[u.ux][u.uy])) || !rn2(4) ||
whappr ||
(mtmp->minvent && rn2((int) edog->apport)))
appr = 1;
}
/* if you have dog food he'll follow you more closely */
if(appr == 0){
obj = invent;
while(obj){
if(obj->otyp == TRIPE_RATION){
appr = 1;
break;
}
obj = obj->nobj;
}
}
} else appr = 1; /* gtyp != UNDEF */
if(mtmp->mconf) appr = 0;
if(gx == u.ux && gy == u.uy && (dogroom != uroom || dogroom < 0)) {
extern coord *gettrack();
register coord *cp;
cp = gettrack(omx,omy);
if(cp){
gx = cp->x;
gy = cp->y;
}
}
nix = omx;
niy = omy;
cnt = mfndpos(mtmp,poss,info,ALLOW_M | ALLOW_TRAPS);
chcnt = 0;
chi = -1;
for(i=0; i<cnt; i++){
nx = poss[i].x;
ny = poss[i].y;
#ifdef WALKIES
/* if leashed, we drag him along. */
if(dist(nx, ny) > 4 && mtmp->mleashed) continue;
#endif
if(info[i] & ALLOW_M) {
mtmp2 = m_at(nx,ny);
if(mtmp2)
if(mtmp2->data->mlevel >= mdat->mlevel+2 ||
mtmp2->data->mlet == 'c')
continue;
if(after) return(0); /* hit only once each move */
if(hitmm(mtmp, mtmp2) == 1 && rn2(4) &&
mtmp2->mlstmv != moves &&
hitmm(mtmp2,mtmp) == 2) return(2);
return(0);
}
/* dog avoids traps */
/* but perhaps we have to pass a trap in order to follow @ */
if((info[i] & ALLOW_TRAPS) && (trap = t_at(nx,ny))){
if(!trap->tseen && rn2(40)) continue;
if(rn2(10)) continue;
}
/* dog eschewes cursed objects */
/* but likes dog food */
obj = fobj;
while(obj){
if(obj->ox != nx || obj->oy != ny)
goto nextobj;
if(obj->cursed) goto nxti;
if(obj->olet == FOOD_SYM &&
(otyp = dogfood(obj)) < MANFOOD &&
(otyp < ACCFOOD || edog->hungrytime <= moves)){
/* Note: our dog likes the food so much that he
might eat it even when it conceals a cursed object */
nix = nx;
niy = ny;
chi = i;
eatobj:
edog->eattime =
moves + obj->quan * objects[obj->otyp].oc_delay;
if(edog->hungrytime < moves)
edog->hungrytime = moves;
edog->hungrytime +=
5*obj->quan * objects[obj->otyp].nutrition;
mtmp->mconf = 0;
if(cansee(nix,niy))
pline("%s ate %s.", Monnam(mtmp), doname(obj));
/* perhaps this was a reward */
if(otyp != CADAVER)
edog->apport += 200/(edog->dropdist+moves-edog->droptime);
delobj(obj);
goto newdogpos;
}
nextobj:
obj = obj->nobj;
}
for(j=0; j<MTSZ && j<cnt-1; j++)
if(nx == mtmp->mtrack[j].x && ny == mtmp->mtrack[j].y)
if(rn2(4*(cnt-j))) goto nxti;
/* Some stupid C compilers cannot compute the whole expression at once. */
nearer = GDIST(nx,ny);
nearer -= GDIST(nix,niy);
nearer *= appr;
if((nearer == 0 && !rn2(++chcnt)) || nearer<0 ||
(nearer > 0 && !whappr &&
((omx == nix && omy == niy && !rn2(3))
|| !rn2(12))
)){
nix = nx;
niy = ny;
if(nearer < 0) chcnt = 0;
chi = i;
}
nxti: ;
}
newdogpos:
if(nix != omx || niy != omy){
if(info[chi] & ALLOW_U){
(void) hitu(mtmp, d(mdat->damn, mdat->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;
}
#ifdef WALKIES
/* an incredible kluge, but the only way to keep pooch near
* after he spends time eating or in a trap, etc...
*/
else if(mtmp->mleashed && dist(omx, omy) > 4) mnexto(mtmp);
#endif
if(mintrap(mtmp) == 2) { /* he died */
#ifdef WALKIES
mtmp->mleashed = 0;
#endif
return(2);
}
pmon(mtmp);
return(1);
}