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-rw-r--r--src/pathfinder/yapf/yapf_cache.h24
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diff --git a/src/pathfinder/yapf/yapf_cache.h b/src/pathfinder/yapf/yapf_cache.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 yapf_cache.h Entry point for OpenTTD to YAPF's cache. */
+
+#ifndef YAPF_CACHE_H
+#define YAPF_CACHE_H
+
+#include "../../track_type.h"
+
+/**
+ * Use this function to notify YAPF that track layout (or signal configuration) has change.
+ * @param tile the tile that is changed
+ * @param track what piece of track is changed
+ */
+void YapfNotifyTrackLayoutChange(TileIndex tile, Track track);
+
+#endif /* YAPF_CACHE_H */