empserver/include/path.h
Markus Armbruster 55ff194f7f (lnd_pathcost): New, factored out of lnd_mobcost().
(att_reacting_units): Use it.  Fixes overcharging of inefficient
units.  Broken when Empire3 changed land unit mobility use not to
depend on efficiency, except for supply units.
(lnd_sweep): Use it.  No functional change.

(speed_factor): New, factored out of lnd_pathcost() and shp_mobcost().
2006-06-08 20:43:13 +00:00

81 lines
2.4 KiB
C

/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2006, 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 files README, COPYING and CREDITS in the root of the source
* tree for related information and legal notices. It is expected
* that 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"
#include "sect.h"
#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
enum p_mode { /* How to find path to destination */
P_NONE, /* don't */
P_FLYING, /* use BestAirPath() */
P_SAILING /* use BestShipPath() */
};
extern signed char dirindex['z'-'a'+1];
extern int diroff[DIR_MAP+1][2];
extern char dirch[DIR_MAP+2];
extern char *routech[DIR_LAST+1][2];
/* src/lib/subs/paths.c */
extern char *getpath(char *, char *, coord, coord, int, int, enum p_mode);
extern double fcost(struct sctstr *, natid);
extern double ncost(struct sctstr *, natid);
extern double pathtoxy(char *, coord *, coord *,
double (*)(struct sctstr *, natid));
extern int chkdir(char, int, int);
extern int diridx(char);
extern void direrr(char *, char *, char *);
extern void pathrange(coord, coord, char *, int, struct range *);
extern double sector_mcost(struct sctstr *, int);
extern double speed_factor(double, int);
#define MAX_PATH_LEN 1024
#endif