view srogue/options.c @ 246:61283e71037c

Rogue V5: don't limit the high score list to 1 on Windows. The Visual Studio project file failed to define ALLSCORES, causing the score file to be limited to one entry per UID. Since the UID is always set to 42 on Windows, only one entry could ever appear in the list.
author John "Elwin" Edwards
date Sun, 15 May 2016 19:04:46 -0400
parents 94a0d9dd5ce1
children d71e5e1f49cf
line wrap: on
line source

/*
 * 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;
}