Mercurial > fife-parpg

annotate engine/core/pathfinder/routepather/routepathersearch.cpp @ 697:ecaa4d98f05f tip

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Abstracted the GUI code and refactored the GUIChan-specific code into its own module. * Most of the GUIChan code has been refactored into its own gui/guichan module. However, references to the GuiFont class still persist in the Engine and GuiManager code and these will need further refactoring. * GuiManager is now an abstract base class which specific implementations (e.g. GUIChan) should subclass. * The GUIChan GUI code is now a concrete implementation of GuiManager, most of which is in the new GuiChanGuiManager class. * The GUI code in the Console class has been refactored out of the Console and into the GUIChan module as its own GuiChanConsoleWidget class. The rest of the Console class related to executing commands was left largely unchanged. * Existing client code may need to downcast the GuiManager pointer received from FIFE::Engine::getGuiManager() to GuiChanGuiManager, since not all functionality is represented in the GuiManager abstract base class. Python client code can use the new GuiChanGuiManager.castTo static method for this purpose.
author M. George Hansen <technopolitica@gmail.com>
date Sat, 18 Jun 2011 00:28:40 -1000
parents 64738befdf3b
children
rev   line source
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1 /***************************************************************************
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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. *
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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 <algorithm>
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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 "model/metamodel/grids/cellgrid.h"
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32 #include "model/structures/layer.h"
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33 #include "model/structures/instancetree.h"
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34 #include "model/metamodel/object.h"
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35 #include "pathfinder/searchspace.h"
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36 #include "pathfinder/heuristic.h"
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37 #include "util/math/fife_math.h"
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38
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39 #include "routepathersearch.h"
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40
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41 namespace FIFE {
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42 RoutePatherSearch::RoutePatherSearch(const int session_id, const Location& from, const Location& to, SearchSpace* searchSpace)
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43 : m_to(to),
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44 m_from(from),
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45 m_sessionId(session_id),
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46 m_searchspace(searchSpace),
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47 m_status(search_status_incomplete),
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48 m_startCoordInt(searchSpace->convertCoordToInt(from.getLayerCoordinates())),
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49 m_destCoordInt(searchSpace->convertCoordToInt(to.getLayerCoordinates())),
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50 m_next(0),
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51 m_heuristic(Heuristic::getHeuristic(searchSpace->getLayer()->getCellGrid()->getType()))
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52 {
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53 m_sortedfrontier.pushElement(PriorityQueue<int, float>::value_type(m_startCoordInt, 0.0f));
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54 int max_index = m_searchspace->getMaxIndex();
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55 m_spt.resize(max_index + 1, -1);
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56 m_sf.resize(max_index + 1, -1);
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57 m_gCosts.resize(max_index + 1, 0.0f);;
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58 }
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59
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60
0
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61 void RoutePatherSearch::updateSearch() {
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62 if(m_sortedfrontier.empty()) {
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63 setSearchStatus(search_status_failed);
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64 return;
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65 }
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66 PriorityQueue<int, float>::value_type topvalue = m_sortedfrontier.getPriorityElement();
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67 m_sortedfrontier.popElement();
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68 m_next = topvalue.first;
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69 m_spt[m_next] = m_sf[m_next];
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70 ModelCoordinate destCoord = m_to.getLayerCoordinates();
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71 if(m_destCoordInt == m_next) {
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72 setSearchStatus(search_status_complete);
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73 return;
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74 }
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75 //use destination layer for getting the cell coordinates for now, this should be moved
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76 //into search space.
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77 ModelCoordinate nextCoord = m_searchspace->convertIntToCoord(m_next);
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78 std::vector<ModelCoordinate> adjacents;
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79 m_searchspace->getLayer()->getCellGrid()->getAccessibleCoordinates(nextCoord, adjacents);
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80 for(std::vector<ModelCoordinate>::iterator i = adjacents.begin(); i != adjacents.end(); ++i) {
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81 //first determine if coordinate is in search space.
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82 Location loc;
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83 loc.setLayer(m_searchspace->getLayer());
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84 loc.setLayerCoordinates((*i));
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85 int adjacentInt = m_searchspace->convertCoordToInt((*i));
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86 if(m_searchspace->isInSearchSpace(loc)) {
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87 if((adjacentInt == m_next || loc.getLayer()->cellContainsBlockingInstance(loc.getLayerCoordinates())) &&
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88 adjacentInt != m_destCoordInt) {
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89 continue;
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90 }
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91 float hCost = m_heuristic->calculate((*i), destCoord);
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92 //float hCost = Heuristic::getHeuristic(m_searchspace->getLayer()->getCellGrid()->getType())->calculate((*i), destCoord);
0
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93 float gCost = m_gCosts[m_next] + loc.getLayer()->getCellGrid()->getAdjacentCost(nextCoord, (*i));
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94 if(m_sf[adjacentInt] == -1) {
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95 m_sortedfrontier.pushElement(PriorityQueue<int, float>::value_type(adjacentInt, gCost + hCost));
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96 m_gCosts[adjacentInt] = gCost;
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97 m_sf[adjacentInt] = m_next;
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98 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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99 else if(gCost < m_gCosts[adjacentInt] && m_spt[adjacentInt] == -1) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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100 m_sortedfrontier.changeElementPriority(adjacentInt, gCost + hCost);
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101 m_gCosts[adjacentInt] = gCost;
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102 m_sf[adjacentInt] = m_next;
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103 }
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104 }
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105 }
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106 }
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107
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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108 RoutePatherSearch::Path RoutePatherSearch::calcPath() {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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109 int current = m_destCoordInt;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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110 int end = m_startCoordInt;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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111 Path path;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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112 //This assures that the agent always steps into the center of the cell.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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113 Location to(m_to);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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114 to.setExactLayerCoordinates(FIFE::intPt2doublePt(to.getLayerCoordinates()));
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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115 path.push_back(to);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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116 while(current != end) {
310
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wenlin_fife@33b003aa-7bff-0310-803a-e67f0ece8222
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117 if(m_spt[current] < 0 ) {
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118 // This is when the size of m_spt can not handle the distance of the location
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119 setSearchStatus(search_status_failed);
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wenlin_fife@33b003aa-7bff-0310-803a-e67f0ece8222
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120 break;
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wenlin_fife@33b003aa-7bff-0310-803a-e67f0ece8222
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121 }
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wenlin_fife@33b003aa-7bff-0310-803a-e67f0ece8222
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122 current = m_spt[current];
0
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123 Location newnode;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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124 newnode.setLayer(m_searchspace->getLayer());
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125 ModelCoordinate currentCoord = m_searchspace->convertIntToCoord(current);
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126 newnode.setLayerCoordinates(currentCoord);
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127 path.push_front(newnode);
310
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wenlin_fife@33b003aa-7bff-0310-803a-e67f0ece8222
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128 }
0
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129 path.front().setExactLayerCoordinates(m_from.getExactLayerCoordinates());
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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130 return path;
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131 }
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132 }