Mercurial > hg > early-roguelike
view rogue3/weapons.c @ 227:696277507a2e
Rogue V4, V5: disable a cheat granting permanent monster detection.
In these two games, a potion of monster detection turns on the player's
SEEMONST flag. A fuse is set to call turn_see() to turn the flag back
off. But the save and restore functions do not recognize turn_see() and
fail to set the fuse up again.
When restoring, Rogue V4 merely sets the fuse's function to NULL and
leaves it burning. When it goes off, a segfault results. Rogue V5
clears all the fuse's fields, and the player retains the ability to see
all monsters on the level.
The save and restore code can now handle the fuse. The function used is
a new wrapper, turn_see_off(), which should lead to less problems with
daemons being multiple incompatible types.
Also, Rogue V4 and Super-Rogue now properly clear unrecognized daemon
and fuse slots when restoring a saved game.
author | John "Elwin" Edwards |
---|---|
date | Sat, 05 Mar 2016 12:10:20 -0500 |
parents | 84651832f967 |
children | 0250220d8cdd |
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/* * Functions for dealing with problems brought about by weapons * * @(#)weapons.c 3.17 (Berkeley) 6/15/81 * * Rogue: Exploring the Dungeons of Doom * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman * All rights reserved. * * See the file LICENSE.TXT for full copyright and licensing information. */ #include "curses.h" #include <ctype.h> #include <string.h> #include "rogue.h" #define NONE 100 char *w_names[MAXWEAPONS] = { "mace", "long sword", "short bow", "arrow", "dagger", "rock", "two handed sword", "sling", "dart", "crossbow", "crossbow bolt", "spear", }; static struct init_weps { char *iw_dam; char *iw_hrl; int iw_launch; int iw_flags; } init_dam[MAXWEAPONS] = { "2d4", "1d3", NONE, 0, /* Mace */ "1d10", "1d2", NONE,0, /* Long sword */ "1d1", "1d1", NONE, 0, /* Bow */ "1d1", "1d6", BOW, ISMANY|ISMISL, /* Arrow */ "1d6", "1d4", NONE, ISMISL, /* Dagger */ "1d2", "1d4", SLING,ISMANY|ISMISL, /* Rock */ "3d6", "1d2", NONE, 0, /* 2h sword */ "0d0", "0d0", NONE, 0, /* Sling */ "1d1", "1d3", NONE, ISMANY|ISMISL, /* Dart */ "1d1", "1d1", NONE, 0, /* Crossbow */ "1d2", "1d10", CROSSBOW, ISMANY|ISMISL,/* Crossbow bolt */ "1d8", "1d6", NONE, ISMISL, /* Spear */ }; /* * missile: * Fire a missile in a given direction */ void missile(int ydelta, int xdelta) { struct object *obj; struct linked_list *item, *nitem; /* * Get which thing we are hurling */ if ((item = get_item("throw", WEAPON)) == NULL) return; obj = (struct object *) ldata(item); if (!dropcheck(obj) || is_current(obj)) return; /* * Get rid of the thing. If it is a non-multiple item object, or * if it is the last thing, just drop it. Otherwise, create a new * item with a count of one. */ if (obj->o_count < 2) { detach(pack, item); inpack--; } else { obj->o_count--; if (obj->o_group == 0) inpack--; nitem = (struct linked_list *) new_item(sizeof *obj); obj = (struct object *) ldata(nitem); *obj = *((struct object *) ldata(item)); obj->o_count = 1; item = nitem; } do_motion(obj, ydelta, xdelta); /* * AHA! Here it has hit something. If it is a wall or a door, * or if it misses (combat) the mosnter, put it on the floor */ if (!isupper(mvwinch(mw, obj->o_pos.y, obj->o_pos.x)) || !hit_monster(unc(obj->o_pos), obj)) fall(item, TRUE); mvwaddch(cw, hero.y, hero.x, PLAYER); } /* * do the actual motion on the screen done by an object traveling * across the room */ void do_motion(struct object *obj, int ydelta, int xdelta) { /* * Come fly with us ... */ obj->o_pos = hero; for (;;) { int ch; /* * Erase the old one */ if (!ce(obj->o_pos, hero) && cansee(unc(obj->o_pos)) && mvwinch(cw, obj->o_pos.y, obj->o_pos.x) != ' ') mvwaddch(cw, obj->o_pos.y, obj->o_pos.x, show(obj->o_pos.y, obj->o_pos.x)); /* * Get the new position */ obj->o_pos.y += ydelta; obj->o_pos.x += xdelta; if (step_ok(ch = winat(obj->o_pos.y, obj->o_pos.x)) && ch != DOOR) { /* * It hasn't hit anything yet, so display it * If it alright. */ if (cansee(unc(obj->o_pos)) && mvwinch(cw, obj->o_pos.y, obj->o_pos.x) != ' ') { mvwaddch(cw, obj->o_pos.y, obj->o_pos.x, obj->o_type); draw(cw); } continue; } break; } } /* * fall: * Drop an item someplace around here. */ void fall(struct linked_list *item, int pr) { struct object *obj; struct room *rp; static coord fpos; obj = (struct object *) ldata(item); if (fallpos(&obj->o_pos, &fpos, TRUE)) { mvaddch(fpos.y, fpos.x, obj->o_type); obj->o_pos = fpos; if ((rp = roomin(&hero)) != NULL && !(rp->r_flags & ISDARK)) { light(&hero); mvwaddch(cw, hero.y, hero.x, PLAYER); } attach(lvl_obj, item); return; } if (pr) if (obj->o_type == WEAPON) /* BUGFUX: Identification trick */ msg("Your %s vanishes as it hits the ground.", w_names[obj->o_which]); else msg("%s vanishes as it hits the ground.", inv_name(obj,TRUE)); discard(item); } /* * init_weapon: * Set up the initial goodies for a weapon */ void init_weapon(struct object *weap, int type) { struct init_weps *iwp; iwp = &init_dam[type]; strcpy(weap->o_damage,iwp->iw_dam); strcpy(weap->o_hurldmg,iwp->iw_hrl); weap->o_launch = iwp->iw_launch; weap->o_flags = iwp->iw_flags; if (weap->o_flags & ISMANY) { weap->o_count = rnd(8) + 8; weap->o_group = newgrp(); } else weap->o_count = 1; } /* * Does the missile hit the monster */ int hit_monster(int y, int x, struct object *obj) { static coord mp; mp.y = y; mp.x = x; return fight(&mp, winat(y, x), obj, TRUE); } /* * num: * Figure out the plus number for armor/weapons */ char * num(int n1, int n2) { static char numbuf[80]; if (n1 == 0 && n2 == 0) return "+0"; if (n2 == 0) sprintf(numbuf, "%s%d", n1 < 0 ? "" : "+", n1); else sprintf(numbuf, "%s%d,%s%d", n1 < 0 ? "" : "+", n1, n2 < 0 ? "" : "+", n2); return numbuf; } /* * wield: * Pull out a certain weapon */ void wield() { struct linked_list *item; struct object *obj, *oweapon; oweapon = cur_weapon; if (!dropcheck(cur_weapon)) { cur_weapon = oweapon; return; } cur_weapon = oweapon; if ((item = get_item("wield", WEAPON)) == NULL) { bad: after = FALSE; return; } obj = (struct object *) ldata(item); if (obj->o_type == ARMOR) { msg("You can't wield armor"); goto bad; } if (is_current(obj)) goto bad; if (terse) addmsg("W"); else addmsg("You are now w"); msg("ielding %s", inv_name(obj, TRUE)); cur_weapon = obj; } /* * pick a random position around the give (y, x) coordinates */ int fallpos(coord *pos, coord *newpos, int passages) { int y, x, cnt, ch; cnt = 0; for (y = pos->y - 1; y <= pos->y + 1; y++) for (x = pos->x - 1; x <= pos->x + 1; x++) { /* * check to make certain the spot is empty, if it is, * put the object there, set it in the level list * and re-draw the room if he can see it */ if (y == hero.y && x == hero.x) continue; if (((ch = winat(y, x)) == FLOOR || (passages && ch == PASSAGE)) && rnd(++cnt) == 0) { newpos->y = y; newpos->x = x; } } return (cnt != 0); }