Mercurial > fife-parpg

annotate engine/core/pathfinder/heuristic.cpp @ 378:64738befdf3b

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bringing in the changes from the build_system_rework branch in preparation for the 0.3.0 release. This commit will require the Jan2010 devkit. Clients will also need to be modified to the new way to import fife.
author vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
date Mon, 11 Jan 2010 23:34:52 +0000
parents 90005975cdbb
children
rev   line source
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1 /***************************************************************************
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
0
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23 #include "util/math/fife_math.h"
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24
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25 // 3rd party library includes
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26
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27 // FIFE includes
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28 // These includes are split up in two parts, separated by one empty line
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29 // First block: files included from the FIFE root src directory
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30 // Second block: files included from the same folder
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31 #include "heuristic.h"
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32
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33 namespace FIFE {
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34
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35 Heuristic* Heuristic::getHeuristic(const std::string& cellgridType) {
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36 if(cellgridType == "square") {
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37 return SquareGridHeuristic::instance();
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38 }
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39
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40 if(cellgridType == "hexagonal") {
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41 return HexGridHeuristic::instance();
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42 }
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43
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44 return 0;
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45 }
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46
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47 SquareGridHeuristic::SquareGridHeuristic(void) {
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48 }
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49
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50 SquareGridHeuristic::~SquareGridHeuristic(void) {
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51 }
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52
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53 float SquareGridHeuristic::calculate(const ModelCoordinate& current, const ModelCoordinate& dest) {
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54 return (float)(ABS(dest.x - current.x) + ABS(dest.y - current.y));
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55 }
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56
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57 HexGridHeuristic::HexGridHeuristic(void) {
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58 }
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59
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60 HexGridHeuristic::~HexGridHeuristic(void) {
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61 }
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62
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63 float HexGridHeuristic::calculate(const ModelCoordinate& current, const ModelCoordinate& dest) {
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64 float cost = (float)(((dest.x - current.x) * (dest.x - current.x)) +
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65 ((dest.y - current.y) * (dest.y - current.y)) +
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66 ((dest.x - current.x) * (dest.y - current.y)));
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67 return cost;
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68 }
378
64738befdf3b bringing in the changes from the build_system_rework branch in preparation for the 0.3.0 release. This commit will require the Jan2010 devkit. Clients will also need to be modified to the new way to import fife.
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
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69 }