/*      $OpenBSD: extern.h,v 1.11 2015/12/31 16:50:29 mestre Exp $      */
/*      $NetBSD: extern.h,v 1.4 1995/04/27 21:22:22 mycroft Exp $       */

/*-
 * Copyright (c) 1990, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Ed James.
 *
 * 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. 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.
 *
 *      @(#)extern.h    8.1 (Berkeley) 5/31/93
 */

/*
 * Copyright (c) 1987 by Ed James, UC Berkeley.  All rights reserved.
 *
 * Copy permission is hereby granted provided that this notice is
 * retained on all partial or complete copies.
 *
 * For more info on this and all of my stuff, mail edjames@berkeley.edu.
 */

#include <curses.h>

#include "def.h"
#include "struct.h"

extern char             GAMES[];
extern const char       *file;

extern int              clck, safe_planes, seeded, test_mode, makenoise;

extern time_t           start_time;

extern FILE             *filein, *fileout;

extern C_SCREEN         screen, *sp;

extern LIST             air, ground;

extern struct termios   tty_start, tty_new;

extern DISPLACEMENT     displacement[MAXDIR];

int             addplane(void);
void            append(LIST *, PLANE *);
void            check_adir(int, int, int);
void            check_edge(int, int);
void            check_edir(int, int, int);
void            check_line(int, int, int, int);
void            check_linepoint(int, int);
void            check_point(int, int);
int             checkdefs(void);
int             compar(const void *, const void *);
void            delete(LIST *, PLANE *);
int             dir_deg(int);
int             dir_no(char);
void            done_screen(void);
void            draw_all(void);
void            draw_line(WINDOW *, int, int, int, int, const char *);
void            erase_all(void);
int             getAChar(void);
int             getcommand(void);
int             gettoken(void);
void            ioaddstr(int, const char *);
void            ioclrtobot(void);
void            ioclrtoeol(int);
void            ioerror(int, int, const char *);
void            iomove(int);
int             list_games(void);
int             log_score(int);
__dead void             log_score_quit(int);
__dead void             loser(const PLANE *, const char *);
char            name(const PLANE *);
int             next_plane(void);
void            noise(void);
int             number(char);
int             open_score_file(void);
void            planewin(void);
int             pop(void);
void            push(int, int);
void            quit(int);
int             read_file(const char *);
void            redraw(void);
void            rezero(void);
void            setseed(const char *);
void            setup_screen(const C_SCREEN *);
int             too_close(const PLANE *p1, const PLANE *p2, int);
void            update(int);
int             yyerror(const char *);
int             yylex(void);
int             yyparse(void);
const char      *Left(char);
const char      *Right(char);
const char      *airport(char);
const char      *beacon(char);
const char      *benum(char);
const char      *circle(char);
const char      *climb(char);
const char      *command(PLANE *);
const char      *default_game(void);
const char      *delayb(char);
const char      *descend(char);
const char      *ex_it(char);
PLANE           *findplane(int);
const char      *ignore(char);
const char      *left(char);
const char      *mark(char);
PLANE           *newplane(void);
const char      *okay_game(const char *);
const char      *rel_dir(char);
const char      *right(char);
const char      *setalt(char);
const char      *setplane(char);
const char      *setrelalt(char);
const char      *timestr(int);
const char      *to_dir(char);
const char      *turn(char);
const char      *unmark(char);