Mercurial > fife-parpg

annotate engine/core/model/structures/location.cpp @ 546:8fee2d2286e9

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Rewrote the object serializing routines to use a "template" idea for loading an object from disk. This allows for multiple objects to load the same base object template but be unique on the scene AND have different values. Useful for say more than one gold stack on the ground with different gold values. TODO: fix the "spawn" console command.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 03 Jun 2010 21:35:06 +0000
parents 90005975cdbb
children
rev   line source
0
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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 * *
46
90005975cdbb * Final LGPL switch step by adjusting the file headers
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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. *
0
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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 *
0
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
0
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23
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24 // 3rd party library includes
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25 #include <SDL.h>
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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 "util/base/exception.h"
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32 #include "util/structures/purge.h"
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33 #include "model/metamodel/grids/cellgrid.h"
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34
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35 #include "layer.h"
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36 #include "instance.h"
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37
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38 namespace FIFE {
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39 static std::string INVALID_LAYER_SET = "Cannot set layer coordinates, given layer is not initialized properly";
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40 static std::string INVALID_LAYER_GET = "Cannot get layer coordinates, layer is not initialized properly";
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41
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42 Location::Location() {
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43 reset();
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44 }
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45
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46 Location::Location(const Location& loc) {
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47 reset();
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48 m_layer = loc.m_layer;
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49 m_exact_layer_coords = loc.m_exact_layer_coords;
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50 }
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51
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52 Location::Location(Layer* layer) {
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53 reset();
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54 m_layer = layer;
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55 }
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56
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57 Location::~Location() {
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58 reset();
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59 }
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60
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61 void Location::reset() {
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62 m_exact_layer_coords.x = 0;
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63 m_exact_layer_coords.y = 0;
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64 m_layer = NULL;
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65 }
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66
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67 Location& Location::operator=(const Location& rhs) {
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68 m_layer = rhs.m_layer;
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69 m_exact_layer_coords.x = rhs.m_exact_layer_coords.x;
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70 m_exact_layer_coords.y = rhs.m_exact_layer_coords.y;
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71 return *this;
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72 }
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73
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74 Map* Location::getMap() const {
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75 if (!m_layer) {
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76 return NULL;
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77 }
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78 return m_layer->getMap();
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79 }
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80
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81 void Location::setLayer(Layer* layer) {
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82 m_layer = layer;
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83 }
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84
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85 Layer* Location::getLayer() const {
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86 return m_layer;
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87 }
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88
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89 void Location::setExactLayerCoordinates(const ExactModelCoordinate& coordinates) {
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90 if (!isValid()) {
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91 throw NotSet(INVALID_LAYER_SET);
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92 }
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93 m_exact_layer_coords = coordinates;
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94 }
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95
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96 void Location::setLayerCoordinates(const ModelCoordinate& coordinates) {
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97 setExactLayerCoordinates(intPt2doublePt(coordinates));
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98 }
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99
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100 void Location::setMapCoordinates(const ExactModelCoordinate& coordinates) {
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101 if (!isValid()) {
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102 throw NotSet(INVALID_LAYER_SET);
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103 }
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104 m_exact_layer_coords = m_layer->getCellGrid()->toExactLayerCoordinates(coordinates);
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105 }
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106
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107 ExactModelCoordinate& Location::getExactLayerCoordinatesRef() {
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108 return m_exact_layer_coords;
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109 }
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110
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111 ExactModelCoordinate Location::getExactLayerCoordinates() const {
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112 return m_exact_layer_coords;
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113 }
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114
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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115 ModelCoordinate Location::getLayerCoordinates() const {
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116 return getLayerCoordinates(m_layer);
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117 }
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118
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119 ExactModelCoordinate Location::getMapCoordinates() const {
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120 return m_layer->getCellGrid()->toMapCoordinates(m_exact_layer_coords);
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121 }
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122
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123 bool Location::isValid() const {
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124 return isValid(m_layer);
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125 }
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126
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127 bool Location::isValid(const Layer* layer) const {
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128 return (layer && layer->getCellGrid());
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129 }
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130
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131 ExactModelCoordinate Location::getExactLayerCoordinates(const Layer* layer) const {
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132 return m_exact_layer_coords;
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133 }
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134
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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135 ModelCoordinate Location::getLayerCoordinates(const Layer* layer) const {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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136 if (!isValid(layer)) {
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137 throw NotSet(INVALID_LAYER_GET);
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138 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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139 CellGrid* cg1 = m_layer->getCellGrid();
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140 CellGrid* cg2 = layer->getCellGrid();
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141 return cg2->toLayerCoordinates(cg1->toMapCoordinates(m_exact_layer_coords));
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142 }
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143
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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144 double Location::getCellOffsetDistance() const {
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145 const ExactModelCoordinate& pt = m_exact_layer_coords;
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146 double dx = pt.x - static_cast<double>(static_cast<int>(pt.x));
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147 double dy = pt.y - static_cast<double>(static_cast<int>(pt.y));
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148 return sqrt(dx*dx + dy*dy);
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149 }
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150
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151 std::ostream& operator<<(std::ostream& os, const Location& l) {
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152 ExactModelCoordinate p = l.getExactLayerCoordinates();
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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153 return os << "x=" << p.x << ", y=" << p.y;
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154 }
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155
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
156 double Location::getMapDistanceTo(const Location& location) const{
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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157 ExactModelCoordinate current = getMapCoordinates();
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158 ExactModelCoordinate target = location.getMapCoordinates();
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159
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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160 double rx = current.x - target.x;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
161 double ry = current.y - target.y;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
162 double rz = current.z - target.z;
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163
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
164 return sqrt(rx*rx + ry*ry + rz*rz);
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165 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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166
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
167 double Location::getLayerDistanceTo(const Location& location) const{
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
168 ModelCoordinate current = getLayerCoordinates();
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
169 ModelCoordinate target = location.getLayerCoordinates(m_layer);
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diff changeset
170
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
171 double rx = current.x - target.x;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
172 double ry = current.y - target.y;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
173 double rz = current.z - target.z;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
174
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
175 return sqrt(rx*rx + ry*ry + rz*rz);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
176 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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177 }