Mercurial > hg > early-roguelike
view srogue/options.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 | 94a0d9dd5ce1 |
children | d71e5e1f49cf |
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/* * This file has all the code for the option command. * * @(#)options.c 9.0 (rdk) 7/17/84 * * Super-Rogue * Copyright (C) 1984 Robert D. Kindelberger * All rights reserved. * * Based on "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 <ctype.h> #include <string.h> #include "rogue.h" #include "rogue.ext" /* * description of an option and what to do with it */ struct optstruct { char *o_name; /* option name */ char *o_prompt; /* prompt for interactive entry */ char *o_opt; /* pointer to thing to set */ }; typedef struct optstruct OPTION; int allowchange(OPTION *opt); OPTION optlist[] = { { "name", "Name: ", whoami }, { "fruit", "Fruit: ", fruit }, { "file", "Save file: ", file_name } }; #define NUM_OPTS (sizeof optlist / sizeof (OPTION)) OPTION safeoptlist[] = { { "fruit", "Fruit: ", fruit }, }; #define NUM_SOPTS (sizeof safeoptlist / sizeof (OPTION)) /* * print and then set options from the terminal */ void option(void) { reg OPTION *op; reg int wh; OPTION *olist; int olen; if (use_savedir) { olist = safeoptlist; olen = NUM_SOPTS; } else { olist = optlist; olen = NUM_OPTS; } wclear(hw); touchwin(hw); /* * Display current values of options */ for (op = olist; op < &olist[olen]; op++) { wh = op - olist; mvwaddstr(hw, wh, 0, op->o_prompt); mvwaddstr(hw, wh, 16, op->o_opt); } /* * Set values */ wmove(hw, 0, 0); for (op = olist; op < &olist[olen]; op++) { wmove(hw, op - olist, 16); if ((wh = get_str(op->o_opt, hw))) { if (wh == QUIT) break; else if (op > olist) { wmove(hw, op - olist, 0); op -= 2; } else { putchar(7); wmove(hw, 0, 0); op -= 1; } } } /* * Switch back to original screen */ dbotline(hw,spacemsg); restscr(cw); after = FALSE; } /* * get_str: * Set a string option */ #define CTRLB 2 int get_str(char *opt, WINDOW *awin) { reg char *sp; reg int c, oy, ox; char buf[LINLEN]; draw(awin); getyx(awin, oy, ox); /* * loop reading in the string, and put it in a temporary buffer */ for (sp = buf; (c=readchar()) != '\n' && c != '\r' && c != ESCAPE; wclrtoeol(awin), draw(awin)) { if (sp - buf >= 50) { *sp = '\0'; /* line was too long */ strucpy(opt,buf,strlen(buf)); mvwaddstr(awin, 0, 0, "Name was truncated --More--"); wclrtoeol(awin); draw(awin); wait_for(awin, ' '); mvwprintw(awin, 0, 0, "Called: %s",opt); draw(awin); return NORM; } if (c == -1) continue; else if(c == md_erasechar()) { /* process erase char */ if (sp > buf) { reg int i; sp--; for (i = strlen(unctrl(*sp)); i; i--) waddch(awin, '\b'); } continue; } else if (c == md_killchar()) { /* process kill character */ sp = buf; wmove(awin, oy, ox); continue; } else if (sp == buf) { if (c == CTRLB) /* CTRL - B */ break; if (c == '~') { strcpy(buf, home); waddstr(awin, home); sp += strlen(home); continue; } } *sp++ = c; waddstr(awin, unctrl(c)); } *sp = '\0'; if (sp > buf) /* only change option if something was typed */ strucpy(opt, buf, strlen(buf)); wmove(awin, oy, ox); waddstr(awin, opt); waddstr(awin, "\n\r"); draw(awin); if (awin == cw) mpos += sp - buf; if (c == CTRLB) return MINUS; if (c == ESCAPE) return QUIT; return NORM; } /* * parse_opts: * Parse options from string, usually taken from the environment. * the string is a series of comma seperated values, with strings * being "name=....", with the string being defined up to a comma * or the end of the entire option string. */ void parse_opts(char *str) { reg char *sp; reg OPTION *op; reg int len; while (*str) { for (sp = str; isalpha(*sp); sp++) /* get option name */ continue; len = sp - str; for (op = optlist; op < &optlist[NUM_OPTS]; op++) { /* For security, some options can't be changed. */ if (!allowchange(op)) continue; if (EQSTR(str, op->o_name, len)) { reg char *start; for (str = sp + 1; *str == '='; str++) continue; if (*str == '~') { strcpy(op->o_opt, home); start = op->o_opt + strlen(home); while (*++str == '/') continue; } else start = (char *) op->o_opt; for (sp = str + 1; *sp && *sp != ','; sp++) continue; strucpy(start, str, sp - str); } } /* * skip to start of next option name */ while (*sp && !isalpha(*sp)) sp++; str = sp; } } /* * copy string using unctrl for things */ void strucpy(char *s1, char *s2, int len) { reg char *sp; while (len-- > 0) { strcpy(s1, (sp = unctrl(*s2))); s1 += strlen(sp); s2++; } *s1 = '\0'; } int allowchange(OPTION *opt) { if (!use_savedir) return 1; if (!strcmp(opt->o_name, "name")) return 0; if (!strcmp(opt->o_name, "file")) return 0; return 1; }