(svn r18379) -Codechange: move the cache updating function to its own header to reduce the include 'pathfinder' dependencies

src/pathfinder/yapf/yapf.h

@@ -102,7 +102,4 @@ bool YapfTrainCheckReverse(const Train *v);
  */
 bool YapfTrainFindNearestSafeTile(const Train *v, TileIndex tile, Trackdir td, bool override_railtype);
 
-/** Use this function to notify YAPF that track layout (or signal configuration) has change */
-void YapfNotifyTrackLayoutChange(TileIndex tile, Track track);
-
 #endif /* YAPF_H */

src/pathfinder/yapf/yapf_cache.h

@@ -0,0 +1,24 @@
+/* $Id$ */
+
+/*
+ * 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 */

src/pathfinder/yapf/yapf_rail.cpp

@@ -12,6 +12,7 @@
 #include "../../stdafx.h"
 
 #include "yapf.hpp"
+#include "yapf_cache.h"
 #include "yapf_node_rail.hpp"
 #include "yapf_costrail.hpp"
 #include "yapf_destrail.hpp"