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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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src/lib/common/move.c Normal file
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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.
*
* ---
*
* move.c: Misc. move routines
*
* Known contributors to this file:
*
*/
#include "gamesdef.h"
#include "misc.h"
#include "xy.h"
#include "var.h"
#include "sect.h"
#include "file.h"
#include "deity.h"
#include "path.h"
#include "nat.h"
#include "common.h"
double
sector_mcost(struct sctstr *sp, int do_bonus)
{
double d;
if (!(d = dchr[sp->sct_type].d_mcst))
return -1.0;
/* Note, the best you can get is a 1.0 here. */
if (do_bonus == MOB_ROAD) {
d = d / (1.0 + ((double)sp->sct_road / 122.0));
} else if (do_bonus == MOB_RAIL) {
d = d / (1.0 + ((double)sp->sct_rail / 100.0));
} else {
if (d < 2.0)
d = 2.0;
}
if (d < 1.0)
d = 1.0;
if (dchr[sp->sct_type].d_mcst < 25)
d = (d * 100.0 - (double)sp->sct_effic) / 500.0;
/* d = (200.0 + (d - 3.0) * (double)sp->sct_effic) / 500.0;*/
else
d = (d * 10.0 - (double)sp->sct_effic) / 115;
if (d <= 0.0 || d < MIN_MOBCOST)
return MIN_MOBCOST;
return d;
}