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/* $NetBSD: io.c,v 1.14 2009/08/31 08:27:16 dholland Exp $ */
/*
* io.c - input/output routines for Phantasia
*/
#include <sys/cdefs.h>
#include <ctype.h>
#include <math.h>
#include <setjmp.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "macros.h"
#include "phantdefs.h"
#include "phantstruct.h"
#include "phantglobs.h"
//#include "pathnames.h"
#undef bool
#include <curses.h>
static void catchalarm(int) __dead;
void
getstring(char *cp, int mx)
{
char *inptr; /* pointer into string for next string */
int x, y; /* original x, y coordinates on screen */
int ch; /* input */
getyx(stdscr, y, x); /* get coordinates on screen */
inptr = cp;
*inptr = '\0'; /* clear string to start */
--mx; /* reserve room in string for nul terminator */
do
/* get characters and process */
{
if (Echo)
mvaddstr(y, x, cp); /* print string on screen */
clrtoeol(); /* clear any data after string */
refresh(); /* update screen */
ch = getchar(); /* get character */
switch (ch) {
case CH_ERASE: /* back up one character */
if (inptr > cp)
--inptr;
break;
case CH_KILL: /* back up to original location */
inptr = cp;
break;
case CH_NEWLINE: /* terminate string */
break;
case CH_REDRAW:/* redraw screen */
clearok(stdscr, TRUE);
continue;
default: /* put data in string */
if (ch >= ' ' || Wizard)
/* printing char; put in string */
*inptr++ = ch;
}
*inptr = '\0'; /* terminate string */
}
while (ch != CH_NEWLINE && inptr < cp + mx);
}
void
more(int where)
{
mvaddstr(where, 0, "-- more --");
getanswer(" ", FALSE);
}
double
infloat(void)
{
double result; /* return value */
getstring(Databuf, SZ_DATABUF);
if (sscanf(Databuf, "%lf", &result) < 1)
/* no valid number entered */
result = 0.0;
return (result);
}
int
inputoption(void)
{
++Player.p_age; /* increase age */
if (Player.p_ring.ring_type != R_SPOILED)
/* ring ok */
return (getanswer("T ", TRUE));
else
/* bad ring */
{
getanswer(" ", TRUE);
return ((int) ROLL(0.0, 5.0) + '0');
}
}
void
interrupt(void)
{
char line[81]; /* a place to store data already on screen */
int loop; /* counter */
int x, y; /* coordinates on screen */
int ch; /* input */
unsigned savealarm; /* to save alarm value */
#ifdef SYS3
signal(SIGINT, SIG_IGN);
#endif
#ifdef SYS5
signal(SIGINT, SIG_IGN);
#endif
savealarm = alarm(0); /* turn off any alarms */
getyx(stdscr, y, x); /* save cursor location */
for (loop = 0; loop < 80; ++loop) { /* save line on screen */
move(4, loop);
line[loop] = inch();
}
line[80] = '\0'; /* nul terminate */
if (Player.p_status == S_INBATTLE || Player.p_status == S_MONSTER)
/* in midst of fighting */
{
mvaddstr(4, 0, "Quitting now will automatically kill your character. Still want to ? ");
ch = getanswer("NY", FALSE);
if (ch == 'Y')
death("Bailing out");
/* NOTREACHED */
} else {
mvaddstr(4, 0, "Do you really want to quit ? ");
ch = getanswer("NY", FALSE);
if (ch == 'Y')
leavegame();
/* NOTREACHED */
}
mvaddstr(4, 0, line); /* restore data on screen */
move(y, x); /* restore cursor */
refresh();
#ifdef SYS3
signal(SIGINT, interrupt);
#endif
#ifdef SYS5
signal(SIGINT, interrupt);
#endif
alarm(savealarm); /* restore alarm */
}
int
getanswer(const char *choices, phbool def)
{
int ch; /* input */
volatile int loop; /* counter */
volatile int oldx, oldy; /* original coordinates on screen */
getyx(stdscr, oldy, oldx);
alarm(0); /* make sure alarm is off */
for (loop = 3; loop; --loop)
/* try for 3 times */
{
if (setjmp(Timeoenv) != 0)
/* timed out waiting for response */
{
if (def || loop <= 1)
/* return default answer */
break;
else
/* prompt, and try again */
goto YELL;
} else
/* wait for response */
{
clrtoeol();
refresh();
#ifdef BSD41
sigset(SIGALRM, catchalarm);
#else
signal(SIGALRM, catchalarm);
#endif
/* set timeout */
if (Timeout)
alarm(7); /* short */
else
alarm(600); /* long */
ch = getchar();
alarm(0); /* turn off timeout */
if (ch < 0)
/* caught some signal */
{
++loop;
continue;
} else
if (ch == CH_REDRAW)
/* redraw screen */
{
clearok(stdscr, TRUE); /* force clear screen */
++loop; /* don't count this input */
continue;
} else
if (Echo) {
addch(ch); /* echo character */
refresh();
}
if (islower(ch))
/* convert to upper case */
ch = toupper(ch);
if (def || strchr(choices, ch) != NULL)
/* valid choice */
return (ch);
else
if (!def && loop > 1)
/* bad choice; prompt, and try again */
{
YELL: mvprintw(oldy + 1, 0, "Please choose one of : [%s]\n", choices);
move(oldy, oldx);
clrtoeol();
continue;
} else
/* return default answer */
break;
}
}
return (*choices);
}
static void
catchalarm(int dummy __unused)
{
longjmp(Timeoenv, 1);
}
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