/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
*
* ---
*
- * 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.
+ * 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.
*
* ---
*
* Steve McClure, 1998
*/
-#include <math.h>
+#include <config.h>
+
+#include "item.h"
#include "misc.h"
-#include "var.h"
-#include "sect.h"
#include "nat.h"
-#include "item.h"
-#include "news.h"
-#include "file.h"
-#include "xy.h"
#include "optlist.h"
-#include "common.h"
+#include "prototypes.h"
+#include "sect.h"
+#include "xy.h"
int
-max_pop(float research, struct sctstr *sp)
+max_population(float research, int desig, int eff)
{
- int maxpop = 999;
+ int maxpop = dchr[desig].d_maxpop;
+ int mp100, rmax;
- if (opt_RES_POP) {
- maxpop = 400 + 600 * ((50.0 + 4.0 * research)
- / (200.0 + 3.0 * research));
- if (maxpop > 999)
- maxpop = 999;
+ /* city efficiency limits maximum population */
+ if (IS_BIG_CITY(desig)) {
+ mp100 = MIN(ITEM_MAX, 10 * maxpop);
+ maxpop += (mp100 - maxpop) * eff / 100.0;
}
- if (opt_BIG_CITY) {
- if (sp && dchr[sp->sct_type].d_pkg == UPKG)
- maxpop = (int)(maxpop * ((9.0 * sp->sct_effic) / 100 + 1));
+ if (opt_RES_POP) {
+ /* research limits maximum population */
+ rmax = maxpop * 0.4
+ + maxpop * 0.6 * (50.0 + 4.0*research) / (200.0 + 3.0*research);
+ if (maxpop > rmax)
+ maxpop = rmax;
}
- if (sp) {
- if (sp->sct_type == SCT_MOUNT)
- maxpop /= 10;
- else if (sp->sct_type == SCT_PLAINS)
- maxpop /= 20;
- }
+ if (CANT_HAPPEN(maxpop > ITEM_MAX))
+ maxpop = ITEM_MAX;
return maxpop;
}
+
+int
+max_pop(float research, struct sctstr *sp)
+{
+ return max_population(research, sp->sct_type, sp->sct_effic);
+}