/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2013, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire 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
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* 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
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
* ---
*
* land.c: Land unit characteristics
- *
+ *
* Known contributors to this file:
* Thomas Ruschak, 1992
* Ken Stevens, 1995
#include <config.h>
+#include <math.h>
#include "misc.h"
#include "land.h"
/*
* Table of land unit types
* Initialized on startup from land.config and deity custom config (if any).
+ * Terminated by a sentinel with null l_name.
*/
-struct lchrstr lchr[];
+struct lchrstr lchr[LND_TYPE_MAX + 2];
+
+#define logx(a, b) (log((a)) / log((b)))
+#define LND_ATTDEF(b, t) (((b) * (1.0 + ((sqrt((t)) / 100.0) * 4.0))) \
+ > 127 ? 127 : \
+ ((b) * (1.0 + ((sqrt((t)) / 100.0) * 4.0))))
+#define LND_SPD(b, t) ((b * (1.0 + ((sqrt(t) / 100.0) * 2.1))) > 127 \
+ ? 127 : (b * (1.0 + ((sqrt(t) / 100.0) * 2.1))))
+#define LND_VUL(b, t) ((b * (1.0 - ((sqrt(t) / 100.0) * 1.1))) < 0 \
+ ? 0 : (b * (1.0 - ((sqrt(t) / 100.0) * 1.1))))
+#define LND_FRG(b, t) ((t) ? \
+ ((b) * (logx((t), 35.0) < 1.0 ? 1.0 : \
+ logx((t), 35.0))) : (b))
+#define LND_DAM(b, t) ((t) ? \
+ ((b) * (logx((t), 60.0) < 1.0 ? 1.0 : \
+ logx((t), 60.0))) : (b))
+#define LND_ACC(b, t) ((b * (1.0 - ((sqrt(t) / 100.0) * 1.1))) < 0 \
+ ? 0 : (b * (1.0 - ((sqrt(t) / 100.0) * 1.1))))
+#define LND_AAF(b, t) ((b * (1.0 + ((sqrt(t) / 100.0) * 3.0))) > 127 \
+ ? 127 : (b * (1.0 + ((sqrt(t) / 100.0) * 3.0))))
+
+float
+l_att(struct lchrstr *lcp, int tech)
+{
+ return LND_ATTDEF(lcp->l_att, MAX(0, tech - lcp->l_tech));
+}
+
+float
+l_def(struct lchrstr *lcp, int tech)
+{
+ return LND_ATTDEF(lcp->l_def, MAX(0, tech - lcp->l_tech));
+}
+
+int
+l_vul(struct lchrstr *lcp, int tech)
+{
+ return LND_VUL(lcp->l_vul, MAX(0, tech - lcp->l_tech));
+}
+
+int
+l_spd(struct lchrstr *lcp, int tech)
+{
+ return LND_SPD(lcp->l_spd, MAX(0, tech - lcp->l_tech));
+}
+
+int
+l_frg(struct lchrstr *lcp, int tech)
+{
+ return LND_FRG(lcp->l_frg, MAX(0, tech - lcp->l_tech));
+}
+
+int
+l_acc(struct lchrstr *lcp, int tech)
+{
+ return LND_ACC(lcp->l_acc, MAX(0, tech - lcp->l_tech));
+}
+
+int
+l_dam(struct lchrstr *lcp, int tech)
+{
+ return LND_DAM(lcp->l_dam, MAX(0, tech - lcp->l_tech));
+}
+
+int
+l_aaf(struct lchrstr *lcp, int tech)
+{
+ return LND_AAF(lcp->l_aaf, MAX(0, tech - lcp->l_tech));
+}
+
+float
+lnd_att(struct lndstr *lp)
+{
+ return l_att(lchr + lp->lnd_type, lp->lnd_tech);
+}
+
+float
+lnd_def(struct lndstr *lp)
+{
+ return l_def(lchr + lp->lnd_type, lp->lnd_tech);
+}
+
+int
+lnd_vul(struct lndstr *lp)
+{
+ return l_vul(lchr + lp->lnd_type, lp->lnd_tech);
+}
+
+int
+lnd_spd(struct lndstr *lp)
+{
+ return l_spd(lchr + lp->lnd_type, lp->lnd_tech);
+}
+
+int
+lnd_vis(struct lndstr *lp)
+{
+ return lchr[lp->lnd_type].l_vis;
+}
+
+int
+lnd_frg(struct lndstr *lp)
+{
+ return l_frg(lchr + lp->lnd_type, lp->lnd_tech);
+}
+
+int
+lnd_acc(struct lndstr *lp)
+{
+ return l_acc(lchr + lp->lnd_type, lp->lnd_tech);
+}
+
+int
+lnd_dam(struct lndstr *lp)
+{
+ return l_dam(lchr + lp->lnd_type, lp->lnd_tech);
+}
+
+int
+lnd_aaf(struct lndstr *lp)
+{
+ return l_aaf(lchr + lp->lnd_type, lp->lnd_tech);
+}