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annotate engine/core/view/renderers/quadtreerenderer.cpp @ 405:cfe2f6db4964

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Reverting my last change to camera.cpp. It caused unexpected results with rotated tiles.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 29 Jan 2010 15:55:47 +0000
parents 90005975cdbb
children 16c2b3ee59ce
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 *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23
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24 // 3rd party library includes
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25
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26 // FIFE includes
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27 // These includes are split up in two parts, separated by one empty line
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28 // First block: files included from the FIFE root src directory
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29 // Second block: files included from the same folder
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30 #include "video/renderbackend.h"
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31 #include "util/math/fife_math.h"
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32 #include "util/log/logger.h"
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33 #include "model/metamodel/grids/cellgrid.h"
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34 #include "model/structures/instance.h"
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35 #include "model/structures/layer.h"
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36 #include "model/structures/location.h"
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37
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38 #include "view/camera.h"
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39 #include "quadtreerenderer.h"
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40 #include "model/structures/instancetree.h"
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41 #include "util/structures/quadtree.h"
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42
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43 ///credit to phoku for his NodeDisplay example which the visitor code is adapted from ( he coded the quadtree after all )
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44 namespace FIFE {
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45 static Logger _log(LM_VIEWVIEW);
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46
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47 QuadTreeRenderer::QuadTreeRenderer(RenderBackend* renderbackend, int position):
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48 RendererBase(renderbackend, position) {
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49 setEnabled(false);
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50 }
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51
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52 QuadTreeRenderer::QuadTreeRenderer(const QuadTreeRenderer& old):
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53 RendererBase(old) {
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54 setEnabled(false);
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55 }
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56
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57 RendererBase* QuadTreeRenderer::clone() {
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58 return new QuadTreeRenderer(*this);
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59 }
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60
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61 QuadTreeRenderer::~QuadTreeRenderer() { }
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62 RenderVisitor::RenderVisitor(RenderBackend * rb, Layer * layer, Camera *camera) {
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63
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64 m_renderbackend = rb;
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65 m_layer = layer;
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66 m_camera = camera;
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67 }
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68
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69 RenderVisitor::~RenderVisitor() {}
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70
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71 template<typename T> bool RenderVisitor::visit(QuadNode<T,2>* node, int d) {
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72
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73 if (d==0)
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74 visited = 0;
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75
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76 int x = node->x();
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77 int y = node->y();
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78 int size = node->size();
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79
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80 ++visited;
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81 CellGrid *cg = m_layer->getCellGrid(); ///we have checked for null pointer in quadtreerenderer::render().. no need to check again
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82
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83
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84 ExactModelCoordinate emc= cg->toMapCoordinates(ExactModelCoordinate( x,y) );//0.5 for each cell's half-width
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85 ScreenPoint scrpt1 =m_camera->toScreenCoordinates( emc );
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86 emc= cg->toMapCoordinates(ExactModelCoordinate( x,y+size) );// this size usage is wrong.. me thinks
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87 ScreenPoint scrpt2 =m_camera->toScreenCoordinates( emc );
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88 emc= cg->toMapCoordinates(ExactModelCoordinate( x+size,y) );
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89 ScreenPoint scrpt3 =m_camera->toScreenCoordinates( emc );
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90 emc= cg->toMapCoordinates(ExactModelCoordinate( x+size,y+size) );
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91 ScreenPoint scrpt4 =m_camera->toScreenCoordinates( emc );
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92
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93 m_renderbackend->drawLine( Point(scrpt1.x,scrpt1.y) , Point(scrpt2.x,scrpt2.y), 255, 255, 255);
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94 m_renderbackend->drawLine(Point(scrpt1.x,scrpt1.y), Point(scrpt3.x,scrpt3.y), 255, 255, 255);
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95 m_renderbackend->drawLine(Point(scrpt3.x,scrpt3.y), Point(scrpt4.x,scrpt4.y), 255, 255, 255);
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96 m_renderbackend->drawLine(Point(scrpt2.x,scrpt2.y), Point(scrpt4.x,scrpt4.y), 255, 255, 255);
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97
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98 return true;
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99 }
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100
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101
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102 void QuadTreeRenderer::render(Camera* cam, Layer* layer, std::vector<Instance*>& instances) {
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103 CellGrid* cg = layer->getCellGrid();
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104 if (!cg) {
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105 FL_WARN(_log, "No cellgrid assigned to layer, cannot draw grid");
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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106 return;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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107 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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108 InstanceTree * itree = layer->getInstanceTree();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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109 RenderVisitor VIPguess(m_renderbackend, layer,cam);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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110 itree->applyVisitor(VIPguess);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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111 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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112
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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113 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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114