Update copyright notice

[empserver] / src / lib / global / land.c

diff --git a/src/lib/global/land.c b/src/lib/global/land.c
index 9bd04baea9da36e59f36a2d588e97fa4ce17c978..6193693046794bf092b3b3daa46fdb23610799ad 100644 (file)
--- a/src/lib/global/land.c
+++ b/src/lib/global/land.c
@@ -1,11 +1,11 @@
 /*
  *  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,
@@ -14,8 +14,7 @@
  *  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/>.
  *
  *  ---
  *
@@ -26,7 +25,7 @@
  *  ---
  *
  *  land.c: Land unit characteristics
- * 
+ *
  *  Known contributors to this file:
  *     Thomas Ruschak, 1992
  *     Ken Stevens, 1995
@@ -35,6 +34,7 @@
 
 #include <config.h>
 
+#include <math.h>
 #include "misc.h"
 #include "land.h"
 
@@ -44,3 +44,124 @@
  * Terminated by a sentinel with null l_name.
  */
 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);
+}