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annotate engine/core/view/renderers/camerazonerenderer.cpp @ 29:0cb049f291e1

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make members private and prefix with m_
author spq@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 11 Jul 2008 13:00:10 +0000
parents 4a0efb7baf70
children 90005975cdbb
rev   line source
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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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 modify *
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7 * it under the terms of the GNU General Public License as published by *
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8 * the Free Software Foundation; either version 2 of the License, or *
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9 * (at your option) any later version. *
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10 * *
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11 * This program 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 *
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14 * GNU 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 General Public License *
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17 * along with this program; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin St, 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 "video/image.h"
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32 #include "util/math/fife_math.h"
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33 #include "util/log/logger.h"
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34 #include "model/metamodel/grids/cellgrid.h"
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35 #include "model/structures/instance.h"
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36 #include "model/structures/layer.h"
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37 #include "model/structures/location.h"
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38
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39 #include "view/camera.h"
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40 #include "camerazonerenderer.h"
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41
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42
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43
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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 CameraZoneRenderer::CameraZoneRenderer(RenderBackend* renderbackend, int position, ImagePool* imagepool):
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48 RendererBase(renderbackend, position),
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49 m_imagepool(imagepool),
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50 m_zone_image(NULL) {
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51 setEnabled(false);
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52 }
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53
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54 CameraZoneRenderer::CameraZoneRenderer(const CameraZoneRenderer& old):
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55 RendererBase(old),
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56 m_imagepool(old.m_imagepool),
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57 m_zone_image(NULL) {
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58 setEnabled(false);
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59 }
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60
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61 RendererBase* CameraZoneRenderer::clone() {
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62 return new CameraZoneRenderer(*this);
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63 }
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64
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65 CameraZoneRenderer::~CameraZoneRenderer() {
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66 delete m_zone_image;
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67 }
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68
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69
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70
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71 void CameraZoneRenderer::render(Camera* cam, Layer* layer, std::vector<Instance*>& instances) {
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72 CellGrid* cg = layer->getCellGrid();
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73 if (!cg) {
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74 FL_WARN(_log, "No cellgrid assigned to layer, cannot draw camera zones");
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75 return;
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76 }
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77 // draw this layer's grid as the camera sees it
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78 Rect rect = cam->getViewPort();
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79 if (!m_zone_image) {
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80 // build zone image
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81 int dataSize = rect.w * rect.h;
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82
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83 // initally all pixels are transparent
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84 uint32_t* data = new uint32_t[dataSize];
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85 uint32_t* end = data + dataSize;
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86
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87 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
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88 uint32_t empty_pixel = 0;//0xff << 24;
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89 uint32_t edge_pixel = 0xff << 16 | 0xff << 24;
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90 #else
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91 uint32_t empty_pixel = 0;//0xff;
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92 uint32_t edge_pixel = 0xff << 8 | 0xff;
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93 #endif
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94
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95 std::fill(data, end, empty_pixel);
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96
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97 // go from screen coords to grid coords (layer coords)
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98 // Search through pixel space, drawing pixels at boundaries
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99 ModelCoordinate prevLayerCoord;
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100 for (int y = 0; y < rect.h; y++) {
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101 for (int x = 0; x < rect.w; x++) {
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102 ExactModelCoordinate mapCoord = cam->toMapCoordinates(ScreenPoint(x, y));
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103 ModelCoordinate layerCoord = cg->toLayerCoordinates(mapCoord);
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104
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105 if (prevLayerCoord != layerCoord) {
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106 data[x + rect.w * y] = edge_pixel;
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107 }
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108 prevLayerCoord = layerCoord;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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109 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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110 }
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 :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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113 for (int x = 0; x < rect.w; x++) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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114 for (int y = 0; y < rect.h; y++) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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115 ExactModelCoordinate mapCoord = cam->toMapCoordinates(ScreenPoint(x, y));
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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116 ModelCoordinate layerCoord = cg->toLayerCoordinates(mapCoord);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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117
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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118 if (prevLayerCoord != layerCoord) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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119 data[x + rect.w * y] = edge_pixel;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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120 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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121 prevLayerCoord = layerCoord;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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122 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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123 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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124
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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125 m_zone_image = m_renderbackend->createImage((uint8_t*) data, rect.w, rect.h);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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126 delete data;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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127 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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128 m_zone_image->render(rect);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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129 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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130
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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131 void CameraZoneRenderer::setEnabled(bool enabled) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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132 if (!enabled) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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133 delete m_zone_image;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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134 m_zone_image = NULL;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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135 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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136 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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137 }