--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/engine/core/pathfinder/heuristic.cpp	Sun Jun 29 18:44:17 2008 +0000
@@ -0,0 +1,69 @@
+/***************************************************************************
+ *   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              *
+ ***************************************************************************/
+
+// Standard C++ library includes
+#include "util/math/fife_math.h"
+
+// 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 "heuristic.h"
+
+namespace FIFE {
+
+	Heuristic* Heuristic::getHeuristic(const std::string& cellgridType) {
+		if(cellgridType == "square") {
+			return SquareGridHeuristic::instance();
+		}
+
+		if(cellgridType == "hexagonal") {
+			return HexGridHeuristic::instance();
+		}
+
+		return 0;
+	}
+
+	SquareGridHeuristic::SquareGridHeuristic(void) {
+	}
+
+	SquareGridHeuristic::~SquareGridHeuristic(void) {
+	}
+
+	float SquareGridHeuristic::calculate(const ModelCoordinate& current, const ModelCoordinate& dest) {
+		return (float)(ABS(dest.x - current.x) + ABS(dest.y - current.y));
+	}
+
+	HexGridHeuristic::HexGridHeuristic(void) {
+	}
+
+	HexGridHeuristic::~HexGridHeuristic(void) {
+	}
+
+	float HexGridHeuristic::calculate(const ModelCoordinate& current, const ModelCoordinate& dest) {
+		float cost = (float)(((dest.x - current.x) * (dest.x - current.x)) +
+					 ((dest.y - current.y) * (dest.y - current.y)) +
+					 ((dest.x - current.x) * (dest.y - current.y)));
+		return cost;
+	}
+}
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