snake.h

早期freebsd实现

/*
 * Copyright (c) 1980, 1993
 *	The 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:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
 *
 *	@(#)snake.h	8.1 (Berkeley) 5/31/93
 */

# include <stdio.h>
# include <assert.h>
# include <sys/types.h>
# include <sgtty.h>
# include <signal.h>
# include <math.h>

#define ESC	'\033'

struct tbuffer {
	long t[4];
} tbuffer;

char	*CL, *UP, *DO, *ND, *BS,
	*HO, *CM,
	*TA, *LL,
	*KL, *KR, *KU, *KD,
	*TI, *TE, *KS, *KE;
int	LINES, COLUMNS;	/* physical screen size. */
int	lcnt, ccnt;	/* user's idea of screen size */
char	xBC, PC;
int	AM, BW;
char	tbuf[1024], tcapbuf[128];
char	*tgetstr(), *tgoto();
int	Klength;	/* length of KX strings */
int	chunk;		/* amount of money given at a time */
#ifdef	debug
#define	cashvalue	(loot-penalty)/25
#else
#define cashvalue	chunk*(loot-penalty)/25
#endif

struct point {
	int col, line;
};
struct point cursor;
struct sgttyb orig, new;
#ifdef TIOCLGET
struct ltchars olttyc, nlttyc;
#endif
struct point *point();
#if __STDC__
void	apr(struct point *, const char *, ...);
void	pr(const char *, ...);
#else
void	apr();
void	pr();
#endif

#define	same(s1, s2)	((s1)->line == (s2)->line && (s1)->col == (s2)->col)