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annotate engine/core/model/structures/location.cpp @ 549:c9113e23b004

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*Removed the ExactModellCoordinate object from the camera constructor. Attention: Little API change to the camera/map.
author helios2000@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 11 Jun 2010 21:29:58 +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, *
0
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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140 CellGrid* cg2 = layer->getCellGrid();
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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145 const ExactModelCoordinate& pt = m_exact_layer_coords;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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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diff changeset
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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diff changeset
157 ExactModelCoordinate current = getMapCoordinates();
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
158 ExactModelCoordinate target = location.getMapCoordinates();
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159
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
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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diff changeset
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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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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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;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
172 double ry = current.y - target.y;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
177 }