2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2012, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * res_pop.c: Get maximum pop of a sector
29 * Known contributors to this file:
39 #include "prototypes.h"
44 max_population(float research, int desig, int eff)
46 int maxpop = dchr[desig].d_maxpop;
49 /* city efficiency limits maximum population */
50 if (IS_BIG_CITY(desig)) {
51 mp100 = MIN(ITEM_MAX, 10 * maxpop);
52 maxpop += (mp100 - maxpop) * eff / 100.0;
56 /* research limits maximum population */
58 + maxpop * 0.6 * (50.0 + 4.0*research) / (200.0 + 3.0*research);
63 if (CANT_HAPPEN(maxpop > ITEM_MAX))
70 max_pop(float research, struct sctstr *sp)
72 return max_population(research, sp->sct_type, sp->sct_effic);