Mercurial > hg > early-roguelike
view rogue3/potions.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 | 527e2150eaf0 |
children | e7862a021609 |
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/* * @(#)potions.c 3.1 3.1 5/7/81 * Function(s) for dealing with potions * * 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 <stdlib.h> #include <string.h> #include "rogue.h" void quaff() { struct object *obj; struct linked_list *item, *titem; struct thing *th; char buf[80]; item = get_item("quaff", POTION); /* * Make certain that it is somethings that we want to drink */ if (item == NULL) return; obj = (struct object *) ldata(item); if (obj->o_type != POTION) { if (!terse) msg("Yuk! Why would you want to drink that?"); else msg("That's undrinkable"); return; } if (obj == cur_weapon) cur_weapon = NULL; /* * Calculate the effect it has on the poor guy. */ switch(obj->o_which) { case P_CONFUSE: if (off(player, ISHUH)) msg("Wait, what's going on here. Huh? What? Who?"); if (on(player, ISHUH)) lengthen(unconfuse, rnd(8)+HUHDURATION); else fuse(unconfuse, 0, rnd(8)+HUHDURATION, AFTER); player.t_flags |= ISHUH; p_know[P_CONFUSE] = TRUE; when P_POISON: if (!ISWEARING(R_SUSTSTR)) { chg_str(-(rnd(3)+1)); msg("You feel very sick now."); } else msg("You feel momentarily sick"); p_know[P_POISON] = TRUE; when P_HEALING: if ((pstats.s_hpt += roll(pstats.s_lvl, 4)) > max_hp) pstats.s_hpt = ++max_hp; msg("You begin to feel better."); sight(); p_know[P_HEALING] = TRUE; when P_STRENGTH: msg("You feel stronger, now. What bulging muscles!"); chg_str(1); p_know[P_STRENGTH] = TRUE; when P_MFIND: /* * Potion of monster detection, if there are monters, detect them */ if (mlist != NULL) { wclear(hw); overwrite(mw, hw); show_win(hw, "You begin to sense the presence of monsters.--More--"); p_know[P_MFIND] = TRUE; } else msg("You have a strange feeling for a moment, then it passes."); when P_TFIND: /* * Potion of magic detection. Show the potions and scrolls */ if (lvl_obj != NULL) { struct linked_list *mobj; struct object *tp; int show; show = FALSE; wclear(hw); for (mobj = lvl_obj; mobj != NULL; mobj = next(mobj)) { tp = (struct object *) ldata(mobj); if (is_magic(tp)) { show = TRUE; mvwaddch(hw, tp->o_pos.y, tp->o_pos.x, MAGIC); } p_know[P_TFIND] = TRUE; } for (titem = mlist; titem != NULL; titem = next(titem)) { struct linked_list *pitem; th = (struct thing *) ldata(titem); for (pitem = th->t_pack; pitem != NULL; pitem = next(pitem)) { if (is_magic(OBJPTR(pitem))) { show = TRUE; mvwaddch(hw, th->t_pos.y, th->t_pos.x, MAGIC); } p_know[P_TFIND] = TRUE; } } if (show) { show_win(hw, "You sense the presence of magic on this level.--More--"); break; } } msg("You have a strange feeling for a moment, then it passes."); when P_PARALYZE: msg("You can't move."); no_command = HOLDTIME; p_know[P_PARALYZE] = TRUE; when P_SEEINVIS: msg("This potion tastes like %s juice.", fruit); if (off(player, CANSEE)) { player.t_flags |= CANSEE; fuse(unsee, 0, SEEDURATION, AFTER); light(&hero); } sight(); when P_RAISE: msg("You suddenly feel much more skillful"); p_know[P_RAISE] = TRUE; raise_level(); when P_XHEAL: if ((pstats.s_hpt += roll(pstats.s_lvl, 8)) > max_hp) pstats.s_hpt = ++max_hp; msg("You begin to feel much better."); p_know[P_XHEAL] = TRUE; sight(); when P_HASTE: add_haste(TRUE); msg("You feel yourself moving much faster."); p_know[P_HASTE] = TRUE; when P_RESTORE: msg("Hey, this tastes great. It make you feel warm all over."); if (pstats.s_str.st_str < max_stats.s_str.st_str || (pstats.s_str.st_str == 18 && pstats.s_str.st_add < max_stats.s_str.st_add)) pstats.s_str = max_stats.s_str; when P_BLIND: msg("A cloak of darkness falls around you."); if (off(player, ISBLIND)) { player.t_flags |= ISBLIND; fuse(sight, 0, SEEDURATION, AFTER); look(FALSE); } p_know[P_BLIND] = TRUE; when P_NOP: msg("This potion tastes extremely dull."); otherwise: msg("What an odd tasting potion!"); return; } status(); if (p_know[obj->o_which] && p_guess[obj->o_which]) { free(p_guess[obj->o_which]); p_guess[obj->o_which] = NULL; } else if (!p_know[obj->o_which] && askme && p_guess[obj->o_which] == NULL) { msg(terse ? "Call it: " : "What do you want to call it? "); if (get_str(buf, cw) == NORM) { p_guess[obj->o_which] = malloc((unsigned int) strlen(buf) + 1); if (p_guess[obj->o_which] != NULL) strcpy(p_guess[obj->o_which], buf); } } /* * Throw the item away */ inpack--; if (obj->o_count > 1) obj->o_count--; else { detach(pack, item); discard(item); } }