Import of Empire 4.2.12

src/lib/subs/landgun.c

@@ -0,0 +1,88 @@
+/*
+ *  Empire - A multi-player, client/server Internet based war game.
+ *  Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ *                           Ken Stevens, Steve McClure
+ *
+ *  This program 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
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  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
+ *
+ *  ---
+ *
+ *  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.
+ *
+ *  ---
+ *
+ *  landgun.c: Return values for land and ship gun firing damages
+ * 
+ *  Known contributors to this file:
+ *  
+ */
+
+#include "misc.h"
+#include "ship.h"
+#include "land.h"
+#include "sect.h"
+#include "prototypes.h"
+
+double
+landgun(int effic, int guns)
+{
+	double d;
+  	double g = (double)min(guns,7);
+
+	d = ((double)(random() % 30) + 20.0) * ((double)g / 7.0);
+	d *= ((double)effic);
+	d /= 100.0;
+	return d;
+}
+
+double
+seagun(int effic, int guns)
+{
+	double d;
+
+	d = 0.0;
+	while (guns--)
+		d += 10.0 + (double)(random() % 6);
+	d *= ((double)effic) * 0.01;
+	return d;
+}
+
+double
+landunitgun(int effic, int shots, int guns, int ammo, int shells)
+{
+	double d = 0.0;
+
+	shots = min(shots, guns);
+	while (shots-- > 0)
+		d += 5.0 + (double)(random() % 6);
+	d *= ((double)effic) * 0.01;
+	if (shells < ammo && ammo != 0)
+		d *= (double)((double)shells / (double)ammo);
+	return d;
+}
+
+int
+roundrange(double r)
+{
+	double f;
+
+	f = r - ((int)r);
+	if (chance(f))
+		return (((int)r) + 1);
+	else
+		return ((int)r);
+}