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-rw-r--r--src/pathfinder/opf/opf_ship.h21
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diff --git a/src/pathfinder/opf/opf_ship.h b/src/pathfinder/opf/opf_ship.h
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+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD 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, version 2.
+ * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file opf_ship.h Original pathfinder for ships; very simple. */
+
+#ifndef OPF_SHIP_H
+#define OPF_SHIP_H
+
+#include "../../direction_type.h"
+
+typedef bool TPFEnumProc(TileIndex tile, void *data, Trackdir trackdir, uint length);
+
+void OPFShipFollowTrack(TileIndex tile, DiagDirection direction, TPFEnumProc *enum_proc, void *data);
+
+#endif /* OPF_SHIP_H */