--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/engine/core/pathfinder/heuristic.h	Sun Jun 29 18:44:17 2008 +0000
@@ -0,0 +1,66 @@
+/***************************************************************************
+ *   Copyright (C) 2005-2008 by the FIFE team                              *
+ *   http://www.fifengine.de                                               *
+ *   This file is part of FIFE.                                            *
+ *                                                                         *
+ *   FIFE 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.,                                       *
+ *   51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA              *
+ ***************************************************************************/
+
+#ifndef FIFE_PATHFINDER_HEURISTIC_H
+#define FIFE_PATHFINDER_HEURISTIC_H
+
+// Standard C++ library includes
+#include <string>
+
+// 3rd party library includes
+
+// FIFE includes
+// These includes are split up in two parts, separated by one empty line
+// First block: files included from the FIFE root src directory
+// Second block: files included from the same folder
+#include "model/metamodel/modelcoords.h"
+#include "util/base/singleton.h"
+
+namespace FIFE {
+	class Heuristic {
+	public:
+		virtual ~Heuristic(void) { }
+
+		virtual float calculate(const ModelCoordinate& current, const ModelCoordinate& dest) = 0;
+
+		static Heuristic* getHeuristic(const std::string& cellgridType);
+	};
+
+	class SquareGridHeuristic : public Heuristic, public StaticSingleton<SquareGridHeuristic>  {	
+	public:
+		virtual float calculate(const ModelCoordinate& current, const ModelCoordinate& dest);
+	
+	private:
+		SINGLEFRIEND(SquareGridHeuristic);
+	};
+
+	class HexGridHeuristic : public Heuristic, public StaticSingleton<HexGridHeuristic> {
+	public:
+		virtual float calculate(const ModelCoordinate& current, const ModelCoordinate& dest);
+	
+	private:
+		SINGLEFRIEND(HexGridHeuristic);
+	};
+
+}
+
+#endif
+/* vim: set noexpandtab: set shiftwidth=2: set tabstop=2: */