NetBSD/games/hack/hack.makemon.c

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/* $NetBSD: hack.makemon.c,v 1.4 1997/10/19 16:58:17 christos Exp $ */
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/*
* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: hack.makemon.c,v 1.4 1997/10/19 16:58:17 christos Exp $");
#endif /* not lint */
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#include "hack.h"
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#include "extern.h"
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struct monst zeromonst;
/*
* called with [x,y] = coordinates;
* [0,0] means anyplace
* [u.ux,u.uy] means: call mnexto (if !in_mklev)
*
* In case we make an Orc or killer bee, we make an entire horde (swarm);
* note that in this case we return only one of them (the one at [x,y]).
*/
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struct monst *
makemon(ptr, x, y)
struct permonst *ptr;
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{
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struct monst *mtmp;
int tmp, ct;
boolean anything = (!ptr);
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if (x != 0 || y != 0)
if (m_at(x, y))
return ((struct monst *) 0);
if (ptr) {
if (strchr(fut_geno, ptr->mlet))
return ((struct monst *) 0);
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} else {
ct = CMNUM - strlen(fut_geno);
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if (strchr(fut_geno, 'm'))
ct++; /* make only 1 minotaur */
if (strchr(fut_geno, '@'))
ct++;
if (ct <= 0)
return (0); /* no more monsters! */
tmp = rn2(ct * dlevel / 24 + 7);
if (tmp < dlevel - 4)
tmp = rn2(ct * dlevel / 24 + 12);
if (tmp >= ct)
tmp = rn1(ct - ct / 2, ct / 2);
for (ct = 0; ct < CMNUM; ct++) {
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ptr = &mons[ct];
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if (strchr(fut_geno, ptr->mlet))
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continue;
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if (!tmp--)
goto gotmon;
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}
panic("makemon?");
}
gotmon:
mtmp = newmonst(ptr->pxlth);
*mtmp = zeromonst; /* clear all entries in structure */
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for (ct = 0; ct < ptr->pxlth; ct++)
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((char *) &(mtmp->mextra[0]))[ct] = 0;
mtmp->nmon = fmon;
fmon = mtmp;
mtmp->m_id = flags.ident++;
mtmp->data = ptr;
mtmp->mxlth = ptr->pxlth;
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if (ptr->mlet == 'D')
mtmp->mhpmax = mtmp->mhp = 80;
else if (!ptr->mlevel)
mtmp->mhpmax = mtmp->mhp = rnd(4);
else
mtmp->mhpmax = mtmp->mhp = d(ptr->mlevel, 8);
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mtmp->mx = x;
mtmp->my = y;
mtmp->mcansee = 1;
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if (ptr->mlet == 'M') {
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mtmp->mimic = 1;
mtmp->mappearance = ']';
}
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if (!in_mklev) {
if (x == u.ux && y == u.uy && ptr->mlet != ' ')
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mnexto(mtmp);
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if (x == 0 && y == 0)
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rloc(mtmp);
}
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if (ptr->mlet == 's' || ptr->mlet == 'S') {
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mtmp->mhide = mtmp->mundetected = 1;
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if (in_mklev)
if (mtmp->mx && mtmp->my)
(void) mkobj_at(0, mtmp->mx, mtmp->my);
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}
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if (ptr->mlet == ':') {
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mtmp->cham = 1;
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(void) newcham(mtmp, &mons[dlevel + 14 + rn2(CMNUM - 14 - dlevel)]);
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}
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if (ptr->mlet == 'I' || ptr->mlet == ';')
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mtmp->minvis = 1;
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if (ptr->mlet == 'L' || ptr->mlet == 'N'
|| (in_mklev && strchr("&w;", ptr->mlet) && rn2(5))
)
mtmp->msleep = 1;
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#ifndef NOWORM
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if (ptr->mlet == 'w' && getwn(mtmp))
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initworm(mtmp);
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#endif /* NOWORM */
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if (anything)
if (ptr->mlet == 'O' || ptr->mlet == 'k') {
coord mm;
int cnt = rnd(10);
mm.x = x;
mm.y = y;
while (cnt--) {
mm = enexto(mm.x, mm.y);
(void) makemon(ptr, mm.x, mm.y);
}
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}
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return (mtmp);
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}
coord
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enexto(xx, yy)
xchar xx, yy;
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{
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xchar x, y;
coord foo[15], *tfoo;
int range;
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tfoo = foo;
range = 1;
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do { /* full kludge action. */
for (x = xx - range; x <= xx + range; x++)
if (goodpos(x, yy - range)) {
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tfoo->x = x;
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tfoo++->y = yy - range;
if (tfoo == &foo[15])
goto foofull;
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}
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for (x = xx - range; x <= xx + range; x++)
if (goodpos(x, yy + range)) {
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tfoo->x = x;
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tfoo++->y = yy + range;
if (tfoo == &foo[15])
goto foofull;
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}
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for (y = yy + 1 - range; y < yy + range; y++)
if (goodpos(xx - range, y)) {
tfoo->x = xx - range;
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tfoo++->y = y;
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if (tfoo == &foo[15])
goto foofull;
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}
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for (y = yy + 1 - range; y < yy + range; y++)
if (goodpos(xx + range, y)) {
tfoo->x = xx + range;
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tfoo++->y = y;
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if (tfoo == &foo[15])
goto foofull;
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}
range++;
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} while (tfoo == foo);
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foofull:
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return (foo[rn2(tfoo - foo)]);
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}
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int
goodpos(x, y)
{ /* used only in mnexto and rloc */
return (
!(x < 1 || x > COLNO - 2 || y < 1 || y > ROWNO - 2 ||
m_at(x, y) || !ACCESSIBLE(levl[x][y].typ)
|| (x == u.ux && y == u.uy)
|| sobj_at(ENORMOUS_ROCK, x, y)
));
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}
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void
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rloc(mtmp)
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struct monst *mtmp;
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{
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int tx, ty;
char ch = mtmp->data->mlet;
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#ifndef NOWORM
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if (ch == 'w' && mtmp->mx)
return; /* do not relocate worms */
#endif /* NOWORM */
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do {
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tx = rn1(COLNO - 3, 2);
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ty = rn2(ROWNO);
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} while (!goodpos(tx, ty));
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mtmp->mx = tx;
mtmp->my = ty;
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if (u.ustuck == mtmp) {
if (u.uswallow) {
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u.ux = tx;
u.uy = ty;
docrt();
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} else
u.ustuck = 0;
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}
pmon(mtmp);
}
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struct monst *
mkmon_at(let, x, y)
char let;
int x, y;
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{
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int ct;
struct permonst *ptr;
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for (ct = 0; ct < CMNUM; ct++) {
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ptr = &mons[ct];
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if (ptr->mlet == let)
return (makemon(ptr, x, y));
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}
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return (0);
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}