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/* $NetBSD: terminal.c,v 1.7 2009/07/04 04:29:55 dholland Exp $ */
/*
* Copyright (c) 1983-2003, Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* + Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* + Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* + Neither the name of the University of California, San Francisco nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: terminal.c,v 1.7 2009/07/04 04:29:55 dholland Exp $");
#endif /* not lint */
#include <stdarg.h>
#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(PLAYER *pp, int y, int 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(PLAYER *pp, int 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(PLAYER *pp, const 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(PLAYER *pp)
{
sendcom(pp, CLEAR);
pp->p_cury = 0;
pp->p_curx = 0;
}
/*
* ce:
* Clear to the end of the line
*/
void
ce(PLAYER *pp)
{
sendcom(pp, CLRTOEOL);
}
#if 0 /* XXX lukem */
/*
* ref;
* Refresh the screen
*/
void
ref(PLAYER *pp)
{
sendcom(pp, REFRESH);
}
#endif
/*
* sendcom:
* Send a command to the given user
*/
void
sendcom(PLAYER *pp, int command, ...)
{
va_list ap;
int arg1, arg2;
va_start(ap, command);
(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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