/*      $NetBSD: hack.apply.c,v 1.13 2011/08/07 06:03:45 dholland Exp $ */

/*
 * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
 * Amsterdam
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the Stichting Centrum voor Wiskunde en
 * Informatica, nor the names of its contributors may be used to endorse or
 * promote products derived from this software without specific prior
 * written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: hack.apply.c,v 1.13 2011/08/07 06:03:45 dholland Exp $");
#endif                          /* not lint */

#include        "hack.h"
#include        "extern.h"
#include        "def.edog.h"
#include        "def.mkroom.h"

static void use_camera(struct obj *);
static int in_ice_box(struct obj *);
static int ck_ice_box(struct obj *);
static int out_ice_box(struct obj *);
static void use_ice_box(struct obj *);
static struct monst *bchit(int, int , int , int);
static void use_whistle(struct obj *);
static void use_magic_whistle(struct obj *);
static int dig(void);
static int use_pick_axe(struct obj *);

int
doapply(void)
{
        struct obj *obj;
        int    res = 1;

        obj = getobj("(", "use or apply");
        if (!obj)
                return (0);

        switch (obj->otyp) {
        case EXPENSIVE_CAMERA:
                use_camera(obj);
                break;
        case ICE_BOX:
                use_ice_box(obj);
                break;
        case PICK_AXE:
                res = use_pick_axe(obj);
                break;

        case MAGIC_WHISTLE:
                if (pl_character[0] == 'W' || u.ulevel > 9) {
                        use_magic_whistle(obj);
                        break;
                }
                /* FALLTHROUGH */
        case WHISTLE:
                use_whistle(obj);
                break;

        case CAN_OPENER:
                if (!carrying(TIN)) {
                        pline("You have no can to open.");
                        goto xit;
                }
                pline("You cannot open a tin without eating its contents.");
                pline("In order to eat, use the 'e' command.");
                if (obj != uwep)
                        pline("Opening the tin will be much easier if you wield the can-opener.");
                goto xit;

        default:
                pline("Sorry, I don't know how to use that.");
xit:
                nomul(0);
                return (0);
        }
        nomul(0);
        return (res);
}

/* ARGSUSED */
static void
use_camera(struct obj *obj __unused)
{
        struct monst *mtmp;
        if (!getdir(1)) {       /* ask: in what direction? */
                flags.move = multi = 0;
                return;
        }
        if (u.uswallow) {
                pline("You take a picture of %s's stomach.", monnam(u.ustuck));
                return;
        }
        if (u.dz) {
                pline("You take a picture of the %s.",
                      (u.dz > 0) ? "floor" : "ceiling");
                return;
        }
        if ((mtmp = bchit(u.dx, u.dy, COLNO, '!')) != NULL) {
                if (mtmp->msleep) {
                        mtmp->msleep = 0;
                        pline("The flash awakens %s.", monnam(mtmp));   /* a3 */
                } else if (mtmp->data->mlet != 'y')
                        if (mtmp->mcansee || mtmp->mblinded) {
                                int    tmp = dist(mtmp->mx, mtmp->my);
                                int    tmp2;
                                if (cansee(mtmp->mx, mtmp->my))
                                        pline("%s is blinded by the flash!", Monnam(mtmp));
                                setmangry(mtmp);
                                if (tmp < 9 && !mtmp->isshk && rn2(4)) {
                                        mtmp->mflee = 1;
                                        if (rn2(4))
                                                mtmp->mfleetim = rnd(100);
                                }
                                if (tmp < 3)
                                        mtmp->mcansee = mtmp->mblinded = 0;
                                else {
                                        tmp2 = mtmp->mblinded;
                                        tmp2 += rnd(1 + 50 / tmp);
                                        if (tmp2 > 127)
                                                tmp2 = 127;
                                        mtmp->mblinded = tmp2;
                                        mtmp->mcansee = 0;
                                }
                        }
        }
}

static
struct obj     *current_ice_box;/* a local variable of use_ice_box, to be
                                 * used by its local procedures in/ck_ice_box */
static int
in_ice_box(struct obj *obj)
{
        if (obj == current_ice_box ||
            (Punished && (obj == uball || obj == uchain))) {
                pline("You must be kidding.");
                return (0);
        }
        if (obj->owornmask & (W_ARMOR | W_RING)) {
                pline("You cannot refrigerate something you are wearing.");
                return (0);
        }
        if (obj->owt + current_ice_box->owt > 70) {
                pline("It won't fit.");
                return (1);     /* be careful! */
        }
        if (obj == uwep) {
                if (uwep->cursed) {
                        pline("Your weapon is welded to your hand!");
                        return (0);
                }
                setuwep((struct obj *) 0);
        }
        current_ice_box->owt += obj->owt;
        freeinv(obj);
        obj->o_cnt_id = current_ice_box->o_id;
        obj->nobj = fcobj;
        fcobj = obj;
        obj->age = moves - obj->age;    /* actual age */
        return (1);
}

static int
ck_ice_box(struct obj *obj)
{
        return (obj->o_cnt_id == current_ice_box->o_id);
}

static int
out_ice_box(struct obj *obj)
{
        struct obj *otmp;
        if (obj == fcobj)
                fcobj = fcobj->nobj;
        else {
                for (otmp = fcobj; otmp->nobj != obj; otmp = otmp->nobj)
                        if (!otmp->nobj)
                                panic("out_ice_box");
                otmp->nobj = obj->nobj;
        }
        current_ice_box->owt -= obj->owt;
        obj->age = moves - obj->age;    /* simulated point of time */
        (void) addinv(obj);
        return 0;
}

static void
use_ice_box(struct obj *obj)
{
        int    cnt = 0;
        struct obj *otmp;
        current_ice_box = obj;  /* for use by in/out_ice_box */
        for (otmp = fcobj; otmp; otmp = otmp->nobj)
                if (otmp->o_cnt_id == obj->o_id)
                        cnt++;
        if (!cnt)
                pline("Your ice-box is empty.");
        else {
                pline("Do you want to take something out of the ice-box? [yn] ");
                if (readchar() == 'y')
                        if (askchain(fcobj, NULL, 0, out_ice_box, ck_ice_box, 0))
                                return;
                pline("That was all. Do you wish to put something in? [yn] ");
                if (readchar() != 'y')
                        return;
        }
        /* call getobj: 0: allow cnt; #: allow all types; %: expect food */
        otmp = getobj("0#%", "put in");
        if (!otmp || !in_ice_box(otmp))
                flags.move = multi = 0;
}

static struct monst *
bchit(int ddx, int ddy, int range, int sym)
{
        struct monst *mtmp = (struct monst *) 0;
        int    bchx = u.ux, bchy = u.uy;

        if (sym)
                Tmp_at(-1, sym);/* open call */
        while (range--) {
                bchx += ddx;
                bchy += ddy;
                if ((mtmp = m_at(bchx, bchy)) != NULL)
                        break;
                if (!ZAP_POS(levl[bchx][bchy].typ)) {
                        bchx -= ddx;
                        bchy -= ddy;
                        break;
                }
                if (sym)
                        Tmp_at(bchx, bchy);
        }
        if (sym)
                Tmp_at(-1, -1);
        return (mtmp);
}

/* ARGSUSED */
static void
use_whistle(struct obj *obj __unused)
{
        struct monst *mtmp = fmon;
        pline("You produce a high whistling sound.");
        while (mtmp) {
                if (dist(mtmp->mx, mtmp->my) < u.ulevel * 20) {
                        if (mtmp->msleep)
                                mtmp->msleep = 0;
                        if (mtmp->mtame)
                                EDOG(mtmp)->whistletime = moves;
                }
                mtmp = mtmp->nmon;
        }
}

/* ARGSUSED */
static void
use_magic_whistle(struct obj *obj __unused)
{
        struct monst *mtmp = fmon;
        pline("You produce a strange whistling sound.");
        while (mtmp) {
                if (mtmp->mtame)
                        mnexto(mtmp);
                mtmp = mtmp->nmon;
        }
}

static int      dig_effort;     /* effort expended on current pos */
static uchar    dig_level;
static coord    dig_pos;
static boolean  dig_down;

static int
dig(void)
{
        struct rm *lev;
        int dpx = dig_pos.x, dpy = dig_pos.y;

        /* perhaps a nymph stole his pick-axe while he was busy digging */
        /* or perhaps he teleported away */
        if (u.uswallow || !uwep || uwep->otyp != PICK_AXE ||
            dig_level != dlevel ||
            ((dig_down && (dpx != u.ux || dpy != u.uy)) ||
             (!dig_down && dist(dpx, dpy) > 2)))
                return (0);

        dig_effort += 10 + abon() + uwep->spe + rn2(5);
        if (dig_down) {
                if (!xdnstair) {
                        pline("The floor here seems too hard to dig in.");
                        return (0);
                }
                if (dig_effort > 250) {
                        dighole();
                        return (0);     /* done with digging */
                }
                if (dig_effort > 50) {
                        struct trap *ttmp = t_at(dpx, dpy);

                        if (!ttmp) {
                                ttmp = maketrap(dpx, dpy, PIT);
                                ttmp->tseen = 1;
                                pline("You have dug a pit.");
                                u.utrap = rn1(4, 2);
                                u.utraptype = TT_PIT;
                                return (0);
                        }
                }
        } else if (dig_effort > 100) {
                const char  *digtxt;
                struct obj *obj;

                lev = &levl[dpx][dpy];
                if ((obj = sobj_at(ENORMOUS_ROCK, dpx, dpy)) != NULL) {
                        fracture_rock(obj);
                        digtxt = "The rock falls apart.";
                } else if (!lev->typ || lev->typ == SCORR) {
                        lev->typ = CORR;
                        digtxt = "You succeeded in cutting away some rock.";
                } else if (lev->typ == HWALL || lev->typ == VWALL
                           || lev->typ == SDOOR) {
                        lev->typ = xdnstair ? DOOR : ROOM;
                        digtxt = "You just made an opening in the wall.";
                } else
                        digtxt = "Now what exactly was it that you were digging in?";
                mnewsym(dpx, dpy);
                prl(dpx, dpy);
                pline("%s", digtxt);    /* after mnewsym & prl */
                return (0);
        } else {
                if (IS_WALL(levl[dpx][dpy].typ)) {
                        int    rno = inroom(dpx, dpy);

                        if (rno >= 0 && rooms[rno].rtype >= 8) {
                                pline("This wall seems too hard to dig into.");
                                return (0);
                        }
                }
                pline("You hit the rock with all your might.");
        }
        return (1);
}

/* When will hole be finished? Very rough indication used by shopkeeper. */
int
holetime(void)
{
        return ((occupation == dig) ? (250 - dig_effort) / 20 : -1);
}

void
dighole(void)
{
        struct trap *ttmp = t_at(u.ux, u.uy);

        if (!xdnstair) {
                pline("The floor here seems too hard to dig in.");
        } else {
                if (ttmp)
                        ttmp->ttyp = TRAPDOOR;
                else
                        ttmp = maketrap(u.ux, u.uy, TRAPDOOR);
                ttmp->tseen = 1;
                pline("You've made a hole in the floor.");
                if (!u.ustuck) {
                        if (inshop())
                                shopdig(1);
                        pline("You fall through ...");
                        if (u.utraptype == TT_PIT) {
                                u.utrap = 0;
                                u.utraptype = 0;
                        }
                        goto_level(dlevel + 1, FALSE);
                }
        }
}

static int
use_pick_axe(struct obj *obj)
{
        char            dirsyms[12];
        char  *dsp = dirsyms, *sdp = sdir;
        struct monst *mtmp;
        struct rm *lev;
        int    rx, ry, res = 0;

        if (obj != uwep) {
                if (uwep && uwep->cursed) {
                        /* Andreas Bormann - ihnp4!decvax!mcvax!unido!ab */
                        pline("Since your weapon is welded to your hand,");
                        pline("you cannot use that pick-axe.");
                        return (0);
                }
                pline("You now wield %s.", doname(obj));
                setuwep(obj);
                res = 1;
        }
        while (*sdp) {
                (void) movecmd(*sdp);   /* sets u.dx and u.dy and u.dz */
                rx = u.ux + u.dx;
                ry = u.uy + u.dy;
                if (u.dz > 0 || (u.dz == 0 && isok(rx, ry) &&
                                 (IS_ROCK(levl[rx][ry].typ)
                                  || sobj_at(ENORMOUS_ROCK, rx, ry))))
                        *dsp++ = *sdp;
                sdp++;
        }
        *dsp = 0;
        pline("In what direction do you want to dig? [%s] ", dirsyms);
        if (!getdir(0))         /* no txt */
                return (res);
        if (u.uswallow && attack(u.ustuck))     /* return(1) */
                ;
        else if (u.dz < 0)
                pline("You cannot reach the ceiling.");
        else if (u.dz == 0) {
                if (Confusion)
                        confdir();
                rx = u.ux + u.dx;
                ry = u.uy + u.dy;
                if ((mtmp = m_at(rx, ry)) && attack(mtmp))
                        return (1);
                if (!isok(rx, ry)) {
                        pline("Clash!");
                        return (1);
                }
                lev = &levl[rx][ry];
                if (lev->typ == DOOR)
                        pline("Your %s against the door.",
                              aobjnam(obj, "clang"));
                else if (!IS_ROCK(lev->typ)
                         && !sobj_at(ENORMOUS_ROCK, rx, ry)) {
                        /* ACCESSIBLE or POOL */
                        pline("You swing your %s through thin air.",
                              aobjnam(obj, NULL));
                } else {
                        if (dig_pos.x != rx || dig_pos.y != ry
                            || dig_level != dlevel || dig_down) {
                                dig_down = FALSE;
                                dig_pos.x = rx;
                                dig_pos.y = ry;
                                dig_level = dlevel;
                                dig_effort = 0;
                                pline("You start digging.");
                        } else
                                pline("You continue digging.");
                        occupation = dig;
                        occtxt = "digging";
                }
        } else if (Levitation) {
                pline("You cannot reach the floor.");
        } else {
                if (dig_pos.x != u.ux || dig_pos.y != u.uy
                    || dig_level != dlevel || !dig_down) {
                        dig_down = TRUE;
                        dig_pos.x = u.ux;
                        dig_pos.y = u.uy;
                        dig_level = dlevel;
                        dig_effort = 0;
                        pline("You start digging in the floor.");
                        if (inshop())
                                shopdig(0);
                } else
                        pline("You continue digging in the floor.");
                occupation = dig;
                occtxt = "digging";
        }
        return (1);
}