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Import of Empire 4.2.12

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Markus Armbruster 2003-08-23 12:23:04 +00:00
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/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---
*
* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
* related information and legal notices. It is expected that any future
* projects/authors will amend these files as needed.
*
* ---
*
* path.h: Definitions for directions, paths, etc.
*
* Known contributors to this file:
*
*/
#ifndef _PATH_H_
#define _PATH_H_
#include "misc.h" /* s_char coord etc. */
#include "sect.h" /* struct sctstr */
#include "xy.h"
/* direction indices */
#define DIR_STOP 0
#define DIR_UR 1
#define DIR_R 2
#define DIR_DR 3
#define DIR_DL 4
#define DIR_L 5
#define DIR_UL 6
#define DIR_VIEW 7
#define DIR_MAP 8
#define DIR_FIRST 1
#define DIR_LAST 6
#define SELL_NOT_DELIV 7 /* in "_use" field => contract */
extern int dirindex[];
extern int diroff[][2];
extern s_char dirch[];
/* src/lib/subs/paths.c */
extern s_char * getpath(s_char * , s_char * , coord , coord , int , int,
int , int );
extern double fcost(struct sctstr * , natid );
extern double ncost(struct sctstr * , natid );
extern double pathtoxy(s_char * , coord * , coord * , double (* )(struct sctstr *sp, natid own));
extern int chkdir(s_char , int , int );
extern int getdir(s_char * , s_char * , s_char * , s_char * );
extern void direrr(s_char * , s_char * , s_char * );
extern double mcost(struct sctstr * , int );
extern int chkpath(natid , s_char * , coord , coord );
extern void pathrange(register coord , register coord , register s_char *,
int , struct range * );
extern s_char *masktopath();
extern long pathtomask();
extern double sector_mcost();
#define P_NONE 0 /* NO destinations allowed */
#define P_WALKING 1 /* use BestLandPath, only owned */
#define P_FLYING 2 /* use bestpath, any */
#define P_SAILING 3 /* use bestpath, any */
#define P_DISTING 4 /* use BestDistPath, only owned */
#define MAX_PATH_LEN 1024
#endif /* _PATH_H_ */