Mercurial > hg > early-roguelike
view rogue4/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 | 1b73a8641b37 |
children | 0250220d8cdd |
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/* * Functions for dealing with problems brought about by weapons * * @(#)weapons.c 4.14 (Berkeley) 4/6/82 * * Rogue: Exploring the Dungeons of Doom * Copyright (C) 1980, 1981, 1982 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 static struct init_weps { char *iw_dam; /* Damage when wielded */ char *iw_hrl; /* Damage when thrown */ char iw_launch; /* Launching weapon */ int iw_flags; /* Miscellaneous flags */ } init_dam[MAXWEAPONS] = { "2d4", "1d3", NONE, 0, /* Mace */ "3d4", "1d2", NONE, 0, /* Long sword */ "1d1", "1d1", NONE, 0, /* Bow */ "1d1", "2d3", BOW, ISMANY|ISMISL, /* Arrow */ "1d6", "1d4", NONE, ISMISL, /* Dagger */ "4d4", "1d2", NONE, 0, /* 2h sword */ "1d1", "1d3", NONE, ISMANY|ISMISL, /* Dart */ "1d1", "1d1", NONE, 0, /* Crossbow */ "1d2", "2d5", CROSSBOW, ISMANY|ISMISL, /* Crossbow bolt */ "2d3", "1d6", NONE, ISMISL, /* Spear */ }; /* * missile: * Fire a missile in a given direction */ void missile(int ydelta, int xdelta) { register THING *obj, *nitem; /* * Get which thing we are hurling */ if ((obj = get_item("throw", WEAPON)) == NULL) return; 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, obj); inpack--; } else { obj->o_count--; if (obj->o_group == 0) inpack--; nitem = new_item(); *nitem = *obj; nitem->o_count = 1; obj = 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 monster, put it on the floor */ if (moat(obj->o_pos.y, obj->o_pos.x) == NULL || !hit_monster(unc(obj->o_pos), obj)) fall(obj, TRUE); } /* * do_motion: * Do the actual motion on the screen done by an object traveling * across the room */ void do_motion(THING *obj, int ydelta, int xdelta) { /* * Come fly with us ... */ obj->o_pos = hero; for (;;) { register int ch; /* * Erase the old one */ if (!ce(obj->o_pos, hero) && cansee(unc(obj->o_pos))) mvaddch(obj->o_pos.y, obj->o_pos.x, chat(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))) { mvaddch(obj->o_pos.y, obj->o_pos.x, obj->o_type); refresh(); } continue; } break; } } /* * fall: * Drop an item someplace around here. */ void fall(THING *obj, bool pr) { static coord fpos; register int index; if (fallpos(&obj->o_pos, &fpos, TRUE)) { index = INDEX(fpos.y, fpos.x); _level[index] = obj->o_type; obj->o_pos = fpos; if (cansee(fpos.y, fpos.x)) { mvaddch(fpos.y, fpos.x, obj->o_type); if (_monst[index] != NULL) _monst[index]->t_oldch = obj->o_type; } attach(lvl_obj, obj); return; } if (pr) msg("the %s vanishes as it hits the ground", /* BUGFIX: Identification trick */ (obj->o_type==WEAPON) ? w_names[obj->o_which] : inv_name(obj,TRUE)); discard(obj); } /* * init_weapon: * Set up the initial goodies for a weapon */ void init_weapon(THING *weap, char type) { register struct init_weps *iwp; iwp = &init_dam[type]; strncpy(weap->o_damage, iwp->iw_dam, 8); strncpy(weap->o_hurldmg, iwp->iw_hrl, 8); 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 = group++; } else weap->o_count = 1; } /* * hit_monster: * Does the missile hit the monster? */ bool hit_monster(int y, int x, THING *obj) { static coord mp; mp.y = y; mp.x = x; return fight(&mp, moat(y, x)->t_type, obj, TRUE); } /* * num: * Figure out the plus number for armor/weapons */ char * num(int n1, int n2, char type) { static char numbuf[10]; sprintf(numbuf, "%s%d", n1 < 0 ? "" : "+", n1); if (type == WEAPON) sprintf(&numbuf[strlen(numbuf)], ",%s%d", n2 < 0 ? "" : "+", n2); return numbuf; } /* * wield: * Pull out a certain weapon */ void wield(void) { register THING *obj, *oweapon; register char *sp; oweapon = cur_weapon; if (!dropcheck(cur_weapon)) { cur_weapon = oweapon; return; } cur_weapon = oweapon; if ((obj = get_item("wield", WEAPON)) == NULL) { bad: after = FALSE; return; } if (obj->o_type == ARMOR) { msg("you can't wield armor"); goto bad; } if (is_current(obj)) goto bad; sp = inv_name(obj, TRUE); cur_weapon = obj; if (!terse) addmsg("you are now "); msg("wielding %s (%c)", sp, pack_char(obj)); } /* * fallpos: * Pick a random position around the give (y, x) coordinates */ bool fallpos(coord *pos, coord *newpos, bool pass) { register 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 = chat(y, x)) == FLOOR || (pass && ch == PASSAGE)) && rnd(++cnt) == 0) { newpos->y = y; newpos->x = x; } } return (cnt != 0); }