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freebsd/games/hack/hack.dog.c
Jordan K. Hubbard 554eb505f8 Bring in the 4.4 Lite games directory, modulo man page changes and segregation
of the x11 based games.  I'm not going to tag the originals with bsd_44_lite
and do this in two stages since it's just not worth it for this collection,
and I've got directory renames to deal with that way.  Bleah.
Submitted by:	jkh
1994-09-04 04:03:31 +00:00

414 lines
10 KiB
C

/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.dog.c - version 1.0.3 */
#include "hack.h"
#include "hack.mfndpos.h"
extern struct monst *makemon();
#include "def.edog.h"
#include "def.mkroom.h"
struct permonst li_dog =
{ "little dog", 'd',2,18,6,1,6,sizeof(struct edog) };
struct permonst dog =
{ "dog", 'd',4,16,5,1,6,sizeof(struct edog) };
struct permonst la_dog =
{ "large dog", 'd',6,15,4,2,4,sizeof(struct edog) };
makedog(){
register struct monst *mtmp = makemon(&li_dog,u.ux,u.uy);
if(!mtmp) return; /* dogs were genocided */
initedog(mtmp);
}
initedog(mtmp) register struct monst *mtmp; {
mtmp->mtame = mtmp->mpeaceful = 1;
EDOG(mtmp)->hungrytime = 1000 + moves;
EDOG(mtmp)->eattime = 0;
EDOG(mtmp)->droptime = 0;
EDOG(mtmp)->dropdist = 10000;
EDOG(mtmp)->apport = 10;
EDOG(mtmp)->whistletime = 0;
}
/* attach the monsters that went down (or up) together with @ */
struct monst *mydogs = 0;
struct monst *fallen_down = 0; /* monsters that fell through a trapdoor */
/* they will appear on the next level @ goes to, even if he goes up! */
losedogs(){
register struct monst *mtmp;
while(mtmp = mydogs){
mydogs = mtmp->nmon;
mtmp->nmon = fmon;
fmon = mtmp;
mnexto(mtmp);
}
while(mtmp = fallen_down){
fallen_down = mtmp->nmon;
mtmp->nmon = fmon;
fmon = mtmp;
rloc(mtmp);
}
}
keepdogs(){
register struct monst *mtmp;
for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
if(dist(mtmp->mx,mtmp->my) < 3 && follower(mtmp)
&& !mtmp->msleep && !mtmp->mfroz) {
relmon(mtmp);
mtmp->nmon = mydogs;
mydogs = mtmp;
unpmon(mtmp);
keepdogs(); /* we destroyed the link, so use recursion */
return; /* (admittedly somewhat primitive) */
}
}
fall_down(mtmp) register struct monst *mtmp; {
relmon(mtmp);
mtmp->nmon = fallen_down;
fallen_down = mtmp;
unpmon(mtmp);
mtmp->mtame = 0;
}
/* return quality of food; the lower the better */
#define DOGFOOD 0
#define CADAVER 1
#define ACCFOOD 2
#define MANFOOD 3
#define APPORT 4
#define POISON 5
#define UNDEF 6
dogfood(obj) register struct obj *obj; {
switch(obj->olet) {
case FOOD_SYM:
return(
(obj->otyp == TRIPE_RATION) ? DOGFOOD :
(obj->otyp < CARROT) ? ACCFOOD :
(obj->otyp < CORPSE) ? MANFOOD :
(poisonous(obj) || obj->age + 50 <= moves ||
obj->otyp == DEAD_COCKATRICE)
? POISON : CADAVER
);
default:
if(!obj->cursed) return(APPORT);
/* fall into next case */
case BALL_SYM:
case CHAIN_SYM:
case ROCK_SYM:
return(UNDEF);
}
}
/* return 0 (no move), 1 (move) or 2 (dead) */
dog_move(mtmp, after) register struct monst *mtmp; {
register 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];
int 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){
if(cansee(omx,omy))
pline("%s dies from hunger.", Monnam(mtmp));
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);
}
}
}
/* first we look for food */
gtyp = UNDEF; /* no goal as yet */
#ifdef LINT
gx = gy = 0; /* suppress 'used before set' message */
#endif LINT
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 QUEST
}
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(levl[u.ux][u.uy].typ) || !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;
if(info[i] & ALLOW_M){
mtmp2 = m_at(nx,ny);
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;
}
if(mintrap(mtmp) == 2) /* he died */
return(2);
pmon(mtmp);
return(1);
}
/* return roomnumber or -1 */
inroom(x,y) xchar x,y; {
#ifndef QUEST
register struct mkroom *croom = &rooms[0];
while(croom->hx >= 0){
if(croom->hx >= x-1 && croom->lx <= x+1 &&
croom->hy >= y-1 && croom->ly <= y+1)
return(croom - rooms);
croom++;
}
#endif QUEST
return(-1); /* not in room or on door */
}
tamedog(mtmp, obj)
register struct monst *mtmp;
register struct obj *obj;
{
register struct monst *mtmp2;
if(flags.moonphase == FULL_MOON && night() && rn2(6))
return(0);
/* If we cannot tame him, at least he's no longer afraid. */
mtmp->mflee = 0;
mtmp->mfleetim = 0;
if(mtmp->mtame || mtmp->mfroz ||
#ifndef NOWORM
mtmp->wormno ||
#endif NOWORM
mtmp->isshk || mtmp->isgd || index(" &@12", mtmp->data->mlet))
return(0); /* no tame long worms? */
if(obj) {
if(dogfood(obj) >= MANFOOD) return(0);
if(cansee(mtmp->mx,mtmp->my)){
pline("%s devours the %s.", Monnam(mtmp),
objects[obj->otyp].oc_name);
}
obfree(obj, (struct obj *) 0);
}
mtmp2 = newmonst(sizeof(struct edog) + mtmp->mnamelth);
*mtmp2 = *mtmp;
mtmp2->mxlth = sizeof(struct edog);
if(mtmp->mnamelth) (void) strcpy(NAME(mtmp2), NAME(mtmp));
initedog(mtmp2);
replmon(mtmp,mtmp2);
return(1);
}