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annotate engine/core/model/structures/location.h @ 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 90005975cdbb
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 #ifndef FIFE_LOCATION_H
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23 #define FIFE_LOCATION_H
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24
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25 // Standard C++ library includes
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26 #include <iostream>
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27
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28 // 3rd party library includes
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29
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30 // FIFE includes
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31 // These includes are split up in two parts, separated by one empty line
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32 // First block: files included from the FIFE root src directory
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33 // Second block: files included from the same folder
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34 #include "model/metamodel/modelcoords.h"
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35 #include "util/base/exception.h"
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36
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37 namespace FIFE {
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38 class Map;
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39 class Layer;
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40
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41 class Location {
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42 public:
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43 /** Default constructor
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44 */
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45 Location();
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46
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47 /** Copy constructor
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48 */
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49 Location(const Location& loc);
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50
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51 /** Utility constructor
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52 */
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53 Location(Layer* layer);
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54
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55 /** Destructor
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56 */
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57 ~Location();
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58
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59 /** Resets location (so that layer and coordinate information becomes invalid)
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60 */
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61 void reset();
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62
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63 /** Assignment operator
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64 */
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65 Location& operator=(const Location& rhs);
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66
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67 /** Compares equality of two locations
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68 */
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69 inline bool operator==(const Location& loc) const {
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70 return ((m_layer == loc.m_layer) && (m_exact_layer_coords == loc.m_exact_layer_coords));
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71 }
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72
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73 /** Compares unequality of two locations
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74 */
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75 inline bool operator!=(const Location& loc) const {
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76 return !(*this == loc);
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77 }
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78
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79 /** Gets the map where this location is pointing to
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80 * @note this information is fetched from the set layer
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81 * @return map where this location is pointing to, NULL in case its invalid
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82 */
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83 Map* getMap() const;
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84
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85 /** Sets layer where this location is pointing to
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86 * @param layer layer to set
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87 */
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88 void setLayer(Layer* layer);
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89
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90 /** Gets the layer where this location is pointing to
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91 * @return layer where this location is pointing to, NULL in case its invalid
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92 */
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93 Layer* getLayer() const;
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94
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95 /** Sets precise layer coordinates to this location
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96 * @throws NotSet in the following cases:
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97 * - layer is not set (NULL)
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98 * - layer does not have cellgrid assigned
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99 * @param coordinates coordinates to set
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100 */
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101 void setExactLayerCoordinates(const ExactModelCoordinate& coordinates);
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102
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103 /** Sets "cell precise" layer coordinates to this location
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104 * @throws NotSet in the following cases:
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105 * - layer is not set (NULL)
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106 * - layer does not have cellgrid assigned
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107 * @see setLayerCoordinates(const ExactModelCoordinate& coordinates)
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108 */
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109 void setLayerCoordinates(const ModelCoordinate& coordinates);
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110
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111 /** Sets map coordinates to this location
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112 * @param coordinates coordinates to set
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113 */
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114 void setMapCoordinates(const ExactModelCoordinate& coordinates);
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115
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116 /** Gets reference to exact layer coordinates. This means that if you
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117 * modify the coordinates, location gets modified directly
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118 * @return reference to exact layer coordinates
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119 */
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120 ExactModelCoordinate& getExactLayerCoordinatesRef();
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121
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122 /** Gets exact layer coordinates set to this location
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123 * @return exact layer coordinates
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124 */
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125 ExactModelCoordinate getExactLayerCoordinates() const;
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126
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127 /** Gets exact layer coordinates of this location mapped on given layer
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128 * @throws NotSet in the following cases:
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129 * - given layer is not set (NULL)
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130 * - given layer does not have cellgrid assigned
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131 * @return exact layer coordinates
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132 */
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133 ExactModelCoordinate getExactLayerCoordinates(const Layer* layer) const;
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134
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135 /** Gets cell precision layer coordinates set to this location
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136 * @see getExactLayerCoordinates()
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137 */
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138 ModelCoordinate getLayerCoordinates() const;
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139
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140 /** Gets cell precision layer coordinates of this location mapped on given layer
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141 * @see getExactLayerCoordinates(const Layer* layer)
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142 */
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143 ModelCoordinate getLayerCoordinates(const Layer* layer) const;
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144
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145 /** Gets map coordinates set to this location
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146 * @return map coordinates
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147 */
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148 ExactModelCoordinate getMapCoordinates() const;
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149
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150 /** Gets offset distance from cell center
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151 * @return offset distance
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152 */
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153 double getCellOffsetDistance() const;
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154
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155 /** Tells if location is valid
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156 * Location is valid if:
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157 * - layer is set
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158 * - layer has cellgrid
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159 */
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160 bool isValid() const;
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161
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162 /** Gets distance in map coordinates to another location on the Map
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163 * @param location is the location you want to get the distance to
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164 */
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165 double getMapDistanceTo(const Location& location) const;
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166
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167 /** Gets layer distance to another location
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168 * @param location is the location you want to get the distance to
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169 * In case location resides on different layer, it is mapped to this layer
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170 */
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171 double getLayerDistanceTo(const Location& location) const;
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172
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173 private:
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174 bool isValid(const Layer* layer) const;
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175
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176 Layer* m_layer;
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177 ExactModelCoordinate m_exact_layer_coords;
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178 };
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179
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180 /** Stream output operator.
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181 *
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182 * Useful for debugging purposes
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183 */
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184 std::ostream& operator<<(std::ostream&, const Location&);
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185 }
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186 #endif //FIFE_LOCATION_H