Mercurial > fife-parpg
annotate engine/core/util/structures/quadtree.h @ 697:ecaa4d98f05f tip
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> |
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date | Sat, 18 Jun 2011 00:28:40 -1000 |
parents | 90005975cdbb |
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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_UTIL_QUADTREE_H |
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23 #define FIFE_UTIL_QUADTREE_H |
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24 |
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25 // Standard C++ library includes |
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26 #include <cassert> |
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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 "rect.h" |
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35 |
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36 namespace FIFE { |
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37 |
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38 /** QuadTree Node |
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39 */ |
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40 template<typename DataType, int MinimumSize = 128> |
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41 class QuadNode { |
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42 protected: |
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43 QuadNode *m_parent; |
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44 QuadNode *m_nodes[4]; |
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45 int m_x,m_y,m_size; |
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46 DataType m_data; |
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47 |
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48 public: |
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49 /** Create a new QuadNode |
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50 * @param parent The parent QuadNode this node is contained in or null. |
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51 * @param x The X position of this QuadNode. |
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52 * @param y The Y position of this QuadNode. |
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53 * @param size The width and height of this QuadNode. |
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54 */ |
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55 QuadNode(QuadNode* parent, int x, int y, int size) |
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56 : m_parent(parent),m_x(x),m_y(y),m_size(size),m_data() { |
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57 m_nodes[0] = m_nodes[1] = m_nodes[2] = m_nodes[3] = 0L; |
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58 } |
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59 |
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60 ~QuadNode() { |
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61 delete m_nodes[0]; |
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62 delete m_nodes[1]; |
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63 delete m_nodes[2]; |
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64 delete m_nodes[3]; |
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65 } |
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66 |
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67 /** Find a container node for a given rectangle. |
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68 * This guarantees to return a Node with the following |
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69 * properties: |
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70 * 1.) The node contains the rectangle (as defined by the contains |
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71 * function). 2.) All subnodes can not contain the rectangle or it has the MinimumSize. |
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72 * 3.) In case these properties can only be fulfilled by extending the tree upwards, |
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73 * that is by creating a new root node - this function will return null. |
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74 * |
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75 * This function will extend the tree automatically so that this guarantee |
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76 * can be fulfilled. |
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77 */ |
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78 QuadNode* find_container(int x, int y, int w, int h); |
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79 QuadNode* find_container(const Rect& rect) { |
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80 return find_container(rect.x,rect.y,rect.w,rect.h); |
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81 } |
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82 |
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83 /** Apply a visitor recursively to the QuadTree |
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84 * A visitor is an object which has a @c visit method which |
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85 * takes as parameters a pointer to a @c QuadNode and an integer. |
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86 * The integer is the depth of the given node. |
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87 * If the method returns @c true it is applied recursivly to all |
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88 * existing subnodes with a depth increased by one. |
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89 * The application happens in Z order (top left, top right, bottom |
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90 * left and finally bottom right). |
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91 */ |
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92 template<typename Visitor> |
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93 void apply_visitor(Visitor& visitor, int d = 0) { |
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94 if( !visitor.visit(this, d) ) |
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95 return; |
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96 if( m_nodes[0] ) m_nodes[0]->apply_visitor(visitor, d + 1); |
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97 if( m_nodes[1] ) m_nodes[1]->apply_visitor(visitor, d + 1); |
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98 if( m_nodes[2] ) m_nodes[2]->apply_visitor(visitor, d + 1); |
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99 if( m_nodes[3] ) m_nodes[3]->apply_visitor(visitor, d + 1); |
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100 } |
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101 |
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102 /** Return the X position of the node. |
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103 */ |
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104 int x() const { return m_x; }; |
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105 |
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106 /** Return the Y position of the node. |
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107 */ |
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108 int y() const { return m_y; }; |
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109 |
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110 /** Return the size (width and height) of the node. |
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111 */ |
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112 int size() const { return m_size; }; |
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113 |
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114 /** Return a reference to the data of the node. |
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115 */ |
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116 DataType& data() { return m_data; }; |
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117 |
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118 /** Check whether a rectangle is contained in the node. |
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119 * A rectangle is contained in a node, iff: |
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120 * @code |
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121 * x >= x() and x + w < x() + size() and y >= y() and y + h < y() + size() |
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122 * @endcode |
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123 * That is the top and left borders are inclusive, but the right and bottom |
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124 * borders are exclusive. |
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125 */ |
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126 bool contains(int x, int y, int w, int h) const; |
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127 |
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128 /// Expand the subnodes - only needed for debugging/profiling worst cases. |
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129 void splice(); |
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130 |
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131 /** Return the parent node |
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132 */ |
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133 QuadNode* parent() { return m_parent; }; |
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134 |
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135 /** Create a new parent node for a rectangle |
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136 * This will create a new parent node end expand the tree so that |
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137 * the given rectangle will eventually be contained after enough calls |
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138 * of this function. |
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139 */ |
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140 QuadNode* create_parent(int x, int y, int w, int h); |
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141 protected: |
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142 int subnode(int x, int y, int w, int h) const; |
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143 }; |
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144 |
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145 /** Dynamic QuadTree |
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146 * A space partitioning tree automatically expanding to adjust |
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147 * to any object size put into the data structure. |
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148 */ |
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149 template<typename DataType, int MinimumSize = 128> |
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150 class QuadTree { |
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151 public: |
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152 typedef QuadNode<DataType,MinimumSize> Node; |
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153 |
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154 /** Create a new QuadTree |
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155 * @param x The X position of the starting node. |
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156 * @param y The Y position of the starting node. |
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157 * @param starting_size The width and height of the starting node. |
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158 */ |
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159 QuadTree(int x = 0, int y = 0, int starting_size = MinimumSize) { |
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160 assert(starting_size>1); |
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161 m_cursor = m_root = new Node(0L,x,y,starting_size); |
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162 } |
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163 |
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164 ~QuadTree() { |
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165 assert( m_root->parent() == 0 ); |
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166 delete m_root; |
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167 } |
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168 |
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169 /** Find a container node for a given rectangle. |
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170 * This guarantees to return a Node with the following |
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171 * properties: |
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172 * 1.) The node contains the rectangle (as defined by the contains |
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173 * function). 2.) All subnodes can not contain the rectangle or it has the MinimumSize. |
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174 * This function will extend the tree automatically so that this guarantee |
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175 * can be fulfilled. |
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176 * This function is optimized for sequential access. This means accessing different rectangles |
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177 * that are 'near' to each other will be fast. |
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178 * @warning If you put different sized objects in (for example) lists in the quadnode, |
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179 * the returned node will @b not contain all objects which might intersect with the given |
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180 * rectangle. |
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181 */ |
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182 Node* find_container(int x, int y, int w, int h); |
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183 Node* find_container(const Rect& rect) { |
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184 return find_container(rect.x,rect.y,rect.w,rect.h); |
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185 } |
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186 |
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187 /** Apply a visitor recursively to the QuadTree |
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188 */ |
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189 template<typename Visitor> |
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190 Visitor& apply_visitor(Visitor& visitor) { |
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191 m_root->apply_visitor(visitor,0); |
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192 return visitor; |
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193 } |
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* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
194 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
195 void clear() { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
196 int x = m_root->x(); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
197 int y = m_root->y(); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
198 int s = m_root->size(); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
199 delete m_root; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
200 m_cursor = m_root = new Node(0L,x,y,s); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
201 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
202 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
203 protected: |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
204 Node *m_root; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
205 Node *m_cursor; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
206 }; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
207 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
208 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
209 template<typename DataType, int MinimumSize> |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
210 inline |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
211 bool QuadNode<DataType,MinimumSize>::contains(int x, int y, int w, int h) const { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
212 if (x < m_x) |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
213 return false; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
214 if (y < m_y) |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
215 return false; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
216 if (x + w >= m_x + m_size) |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
217 return false; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
218 if (y + h >= m_y + m_size) |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
219 return false; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
220 return true; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
221 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
222 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
223 template<typename DataType, int MinimumSize> |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
224 inline |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
225 int QuadNode<DataType,MinimumSize>::subnode(int x, int y, int w, int h) const { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
226 /* |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
227 Very small performance impact - roughly 5% for |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
228 the already very fast find_container function. |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
229 */ |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
230 //assert(contains(x,y,w,h)); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
231 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
232 if (x >= m_x + m_size/2) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
233 if (y >= m_y + m_size/2) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
234 return 3; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
235 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
236 if (y + h < m_y + m_size/2) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
237 return 1; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
238 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
239 return -1; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
240 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
241 if (x + w < m_x + m_size/2) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
242 if (y >= m_y + m_size/2) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
243 return 2; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
244 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
245 if (y + h < m_y + m_size/2) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
246 return 0; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
247 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
248 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
249 return -1; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
250 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
251 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
252 template<typename DataType,int MinimumSize> |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
253 QuadNode<DataType,MinimumSize>* |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
254 QuadNode<DataType,MinimumSize>::find_container(int x, int y, int w, int h) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
255 if( !contains(x,y,w,h) ) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
256 if (m_parent) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
257 return m_parent->find_container(x,y,w,h); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
258 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
259 return 0L; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
260 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
261 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
262 if (m_size <= MinimumSize) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
263 return this; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
264 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
265 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
266 int r = subnode(x,y,w,h); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
267 switch(r) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
268 case -1: |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
269 return this; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
270 case 0: |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
271 if( m_nodes[0] == 0) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
272 m_nodes[0] = new QuadNode<DataType,MinimumSize>(this,m_x,m_y,m_size/2); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
273 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
274 return m_nodes[0]->find_container(x,y,w,h); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
275 case 1: |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
276 if( m_nodes[1] == 0) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
277 m_nodes[1] = new QuadNode<DataType,MinimumSize>(this,m_x + m_size/2,m_y,m_size/2); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
278 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
279 return m_nodes[1]->find_container(x,y,w,h); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
280 case 2: |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
281 if( m_nodes[2] == 0) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
282 m_nodes[2] = new QuadNode<DataType,MinimumSize>(this,m_x,m_y + m_size/2,m_size/2); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
283 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
284 return m_nodes[2]->find_container(x,y,w,h); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
285 case 3: |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
286 if( m_nodes[3] == 0) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
287 m_nodes[3] = new QuadNode<DataType,MinimumSize>(this,m_x + m_size/2,m_y + m_size/2,m_size/2); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
288 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
289 return m_nodes[3]->find_container(x,y,w,h); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
290 default: |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
291 assert("BUG in QuadTree !" == 0); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
292 return 0L; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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293 } |
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* Datasets becomes the new trunk and retires after that :-)
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294 } |
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295 |
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296 template<typename DataType,int MinimumSize> |
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* Datasets becomes the new trunk and retires after that :-)
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297 QuadNode<DataType,MinimumSize>* |
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298 QuadNode<DataType,MinimumSize>::create_parent(int x, int y, int w, int h) { |
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299 /* |
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* Datasets becomes the new trunk and retires after that :-)
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300 If used only by the tree, these two are superfluous. |
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* Datasets becomes the new trunk and retires after that :-)
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301 */ |
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* Datasets becomes the new trunk and retires after that :-)
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302 if( contains(x,y,w,h) ) |
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* Datasets becomes the new trunk and retires after that :-)
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303 return this; |
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* Datasets becomes the new trunk and retires after that :-)
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304 if( m_parent ) |
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* Datasets becomes the new trunk and retires after that :-)
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305 return m_parent; |
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* Datasets becomes the new trunk and retires after that :-)
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306 |
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* Datasets becomes the new trunk and retires after that :-)
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307 if (x >= m_x) { |
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* Datasets becomes the new trunk and retires after that :-)
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308 if (y >= m_y) { // we are node 0 |
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* Datasets becomes the new trunk and retires after that :-)
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309 m_parent = new QuadNode(0L,m_x,m_y,m_size*2); |
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* Datasets becomes the new trunk and retires after that :-)
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310 m_parent->m_nodes[0] = this; |
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* Datasets becomes the new trunk and retires after that :-)
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311 return m_parent; |
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* Datasets becomes the new trunk and retires after that :-)
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parents:
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312 } |
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* Datasets becomes the new trunk and retires after that :-)
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parents:
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313 if (y + w < m_y + m_size) { // we are node 2 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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314 m_parent = new QuadNode(0L,m_x,m_y - m_size,m_size*2); |
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* Datasets becomes the new trunk and retires after that :-)
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315 m_parent->m_nodes[2] = this; |
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* Datasets becomes the new trunk and retires after that :-)
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316 return m_parent; |
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* Datasets becomes the new trunk and retires after that :-)
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317 } |
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* Datasets becomes the new trunk and retires after that :-)
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318 } |
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* Datasets becomes the new trunk and retires after that :-)
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319 if (x + h < m_x + m_size) { |
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* Datasets becomes the new trunk and retires after that :-)
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320 if (y >= m_y) { // we are node 1 |
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* Datasets becomes the new trunk and retires after that :-)
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321 m_parent = new QuadNode(0L,m_x-m_size,m_y,m_size*2); |
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* Datasets becomes the new trunk and retires after that :-)
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322 m_parent->m_nodes[1] = this; |
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* Datasets becomes the new trunk and retires after that :-)
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323 return m_parent; |
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* Datasets becomes the new trunk and retires after that :-)
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324 } |
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* Datasets becomes the new trunk and retires after that :-)
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325 if (y + w < m_y + m_size) { // we are node 3 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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326 m_parent = new QuadNode(0L,m_x-m_size,m_y - m_size,m_size*2); |
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* Datasets becomes the new trunk and retires after that :-)
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327 m_parent->m_nodes[3] = this; |
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* Datasets becomes the new trunk and retires after that :-)
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328 return m_parent; |
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* Datasets becomes the new trunk and retires after that :-)
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329 } |
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* Datasets becomes the new trunk and retires after that :-)
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330 } |
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* Datasets becomes the new trunk and retires after that :-)
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331 |
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* Datasets becomes the new trunk and retires after that :-)
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332 // It does not matter.... |
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* Datasets becomes the new trunk and retires after that :-)
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parents:
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333 m_parent = new QuadNode(0L,m_x,m_y,m_size*2); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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334 m_parent->m_nodes[0] = this; |
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* Datasets becomes the new trunk and retires after that :-)
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parents:
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335 return m_parent; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
336 } |
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* Datasets becomes the new trunk and retires after that :-)
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parents:
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337 |
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* Datasets becomes the new trunk and retires after that :-)
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parents:
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|
338 template<typename DataType,int MinimumSize> |
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* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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339 void QuadNode<DataType,MinimumSize>::splice() { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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340 if (m_size <= MinimumSize) |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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341 return; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
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parents:
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342 |
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* Datasets becomes the new trunk and retires after that :-)
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parents:
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|
343 if( m_nodes[0] == 0) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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344 m_nodes[0] = new QuadNode<DataType,MinimumSize>(this,m_x,m_y,m_size/2); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
345 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
346 if( m_nodes[1] == 0) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
347 m_nodes[1] = new QuadNode<DataType,MinimumSize>(this,m_x + m_size/2,m_y,m_size/2); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
348 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
349 if( m_nodes[2] == 0) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
350 m_nodes[2] = new QuadNode<DataType,MinimumSize>(this,m_x,m_y + m_size/2,m_size/2); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
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|
351 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
352 if( m_nodes[3] == 0) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
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|
353 m_nodes[3] = new QuadNode<DataType,MinimumSize>(this,m_x + m_size/2,m_y + m_size/2,m_size/2); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
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|
354 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
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|
355 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
356 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
357 template<typename DataType,int MinimumSize> |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
358 QuadNode<DataType,MinimumSize>* |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
359 QuadTree<DataType,MinimumSize>::find_container(int x, int y, int w, int h) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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|
360 m_cursor = m_cursor->find_container(x,y,w,h); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
361 while( m_cursor == 0L ) { |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
362 m_root = m_root->create_parent(x,y,w,h); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
363 m_cursor = m_root->find_container(x,y,w,h); |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
364 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
365 return m_cursor; |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
366 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
367 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
368 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
369 } |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
370 |
4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff
changeset
|
371 #endif // QUADTREE_H |