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/* $NetBSD: terminal.c,v 1.2 1997/10/10 16:34:05 lukem Exp $ */
/*
* Hunt
* Copyright (c) 1985 Conrad C. Huang, Gregory S. Couch, Kenneth C.R.C. Arnold
* San Francisco, California
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: terminal.c,v 1.2 1997/10/10 16:34:05 lukem Exp $");
#endif /* not lint */
#if __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
# include "hunt.h"
# define TERM_WIDTH 80 /* Assume terminals are 80-char wide */
/*
* cgoto:
* Move the cursor to the given position on the given player's
* terminal.
*/
void
cgoto(pp, y, x)
PLAYER *pp;
int y, x;
{
if (x == pp->p_curx && y == pp->p_cury)
return;
sendcom(pp, MOVE, y, x);
pp->p_cury = y;
pp->p_curx = x;
}
/*
* outch:
* Put out a single character.
*/
void
outch(pp, ch)
PLAYER *pp;
char ch;
{
if (++pp->p_curx >= TERM_WIDTH) {
pp->p_curx = 0;
pp->p_cury++;
}
(void) putc(ch, pp->p_output);
}
/*
* outstr:
* Put out a string of the given length.
*/
void
outstr(pp, str, len)
PLAYER *pp;
char *str;
int len;
{
pp->p_curx += len;
pp->p_cury += (pp->p_curx / TERM_WIDTH);
pp->p_curx %= TERM_WIDTH;
while (len--)
(void) putc(*str++, pp->p_output);
}
/*
* clrscr:
* Clear the screen, and reset the current position on the screen.
*/
void
clrscr(pp)
PLAYER *pp;
{
sendcom(pp, CLEAR);
pp->p_cury = 0;
pp->p_curx = 0;
}
/*
* ce:
* Clear to the end of the line
*/
void
ce(pp)
PLAYER *pp;
{
sendcom(pp, CLRTOEOL);
}
#if 0 /* XXX lukem*/
/*
* ref;
* Refresh the screen
*/
void
ref(pp)
PLAYER *pp;
{
sendcom(pp, REFRESH);
}
#endif
/*
* sendcom:
* Send a command to the given user
*/
void
#if __STDC__
sendcom(PLAYER *pp, int command, ...)
#else
sendcom(pp, command, va_alist)
PLAYER *pp;
int command;
va_dcl
#endif
{
va_list ap;
int arg1, arg2;
#if __STDC__
va_start(ap, command);
#else
va_start(ap);
#endif
(void) putc(command, pp->p_output);
switch (command & 0377) {
case MOVE:
arg1 = va_arg(ap, int);
arg2 = va_arg(ap, int);
(void) putc(arg1, pp->p_output);
(void) putc(arg2, pp->p_output);
break;
case ADDCH:
case READY:
arg1 = va_arg(ap, int);
(void) putc(arg1, pp->p_output);
break;
}
va_end(ap); /* No return needed for void functions. */
}
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