Update copyright notice

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

diff --git a/src/lib/global/plane.c b/src/lib/global/plane.c
index 4c1c29646ec2295f511a5d69669339ee54def613..bc1a6dd49aeb5b4f8635e5b43b68e6ee420c9a0c 100644 (file)
--- a/src/lib/global/plane.c
+++ b/src/lib/global/plane.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) 1986-2021, 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 @@
  *  ---
  *
  *  plane.c: Plane characteristics
- * 
+ *
  *  Known contributors to this file:
  *     Dave Pare, 1986
  *     Jeff Bailey
@@ -37,6 +36,7 @@
 
 #include <config.h>
 
+#include <math.h>
 #include "misc.h"
 #include "plane.h"
 
@@ -45,4 +45,71 @@
  * Initialized on startup from plane.config and deity custom config (if any).
  * Terminated by a sentinel with null pl_name.
  */
-struct plchrstr plchr[PLN_TYPE_MAX + 2];
+struct plchrstr plchr[PLCHR_SZ];
+
+#define logx(a, b) (log((a)) / log((b)))
+#define PLN_ATTDEF(b, t) (b + ((b?1:0) * ((t/20)>10?10:(t/20))))
+#define PLN_ACC(b, t) (b * (1.0 - (sqrt(t) / 50.)))
+#define PLN_RAN(b, t) (t ? (b + (logx(t, 2.0))) : b)
+#define PLN_LOAD(b, t) (t ? (b * (logx(t, 50.0) < 1.0 ? 1.0 : \
+                                 logx(t, 50.0))) : b)
+
+int
+pl_att(struct plchrstr *pcp, int tech)
+{
+    return PLN_ATTDEF(pcp->pl_att, MAX(0, tech - pcp->pl_tech));
+}
+
+int
+pl_def(struct plchrstr *pcp, int tech)
+{
+    return PLN_ATTDEF(pcp->pl_def, MAX(0, tech - pcp->pl_tech));
+}
+
+int
+pl_acc(struct plchrstr *pcp, int tech)
+{
+    return PLN_ACC(pcp->pl_acc, MAX(0, tech - pcp->pl_tech));
+}
+
+int
+pl_range(struct plchrstr *pcp, int tech)
+{
+    return PLN_RAN(pcp->pl_range, MAX(0, tech - pcp->pl_tech));
+}
+
+int
+pl_load(struct plchrstr *pcp, int tech)
+{
+    return PLN_LOAD(pcp->pl_load, MAX(0, tech - pcp->pl_tech));
+}
+
+int
+pln_att(struct plnstr *pp)
+{
+    return pl_att(plchr + pp->pln_type, pp->pln_tech);
+}
+
+int
+pln_def(struct plnstr *pp)
+{
+    return pl_def(plchr + pp->pln_type, pp->pln_tech);
+}
+
+int
+pln_acc(struct plnstr *pp)
+{
+    return pl_acc(plchr + pp->pln_type, pp->pln_tech);
+}
+
+int
+pln_range_max(struct plnstr *pp)
+{
+    return pl_range(plchr + pp->pln_type, pp->pln_tech);
+}
+
+int
+pln_load(struct plnstr *pp)
+{
+    return pl_load(plchr + pp->pln_type, pp->pln_tech);
+}