1 files changed, 87 insertions, 0 deletions
diff --git a/sail/game.c b/sail/game.c
new file mode 100644
index 00000000..9b8add72
--- /dev/null
+++ b/sail/game.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)game.c	5.4 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+#include "externs.h"
+
+maxturns(ship, af)
+register struct ship *ship;
+char *af;
+{
+	register int turns;
+
+	turns = ship->specs->ta;
+	if (*af = (ship->file->drift > 1 && turns)) {
+		turns--;
+		if (ship->file->FS == 1)
+			turns = 0;
+	}
+	return turns;
+}
+
+maxmove(ship, dir, fs)
+register struct ship *ship;
+int dir, fs;
+{
+	register int riggone = 0, Move, flank = 0;
+
+	Move = ship->specs->bs;
+	if (!ship->specs->rig1)
+		riggone++;
+	if (!ship->specs->rig2)
+		riggone++;
+	if (!ship->specs->rig3)
+		riggone++;
+	if (!ship->specs->rig4)
+		riggone++;
+	if ((ship->file->FS || fs) && fs != -1) {
+		flank = 1;
+		Move = ship->specs->fs;
+	}
+	if (dir == winddir)
+		Move -= 1 + WET[windspeed][ship->specs->class-1].B;
+	else if (dir == winddir + 2 || dir == winddir - 2 || dir == winddir - 6 || dir == winddir + 6)
+		Move -= 1 + WET[windspeed][ship->specs->class-1].C;
+	else if (dir == winddir + 3 || dir == winddir - 3 || dir == winddir - 5 || dir == winddir + 5)
+		Move = (flank ? 2 : 1) - WET[windspeed][ship->specs->class-1].D;
+	else if (dir == winddir + 4 || dir == winddir - 4)
+		Move = 0;
+	else 
+		Move -= WET[windspeed][ship->specs->class-1].A;
+	Move -= riggone;
+	Move = Move < 0 ? 0 : Move;
+	return(Move);
+}