1 | /*
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2 | -----------------------------------------------------------------------------
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3 | This source file is part of OGRE
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4 | (Object-oriented Graphics Rendering Engine)
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5 | For the latest info, see http://www.ogre3d.org/
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6 |
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7 | Copyright (c) 2000-2005 The OGRE Team
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8 | Also see acknowledgements in Readme.html
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9 |
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10 | You may use this sample code for anything you like, it is not covered by the
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11 | LGPL like the rest of the engine.
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12 | -----------------------------------------------------------------------------
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13 | */
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14 | /*
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15 | -----------------------------------------------------------------------------
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16 | Filename: ExampleFrameListener.h
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17 | Description: Defines an example frame listener which responds to frame events.
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18 | This frame listener just moves a specified camera around based on
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19 | keyboard and mouse movements.
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20 | Mouse: Freelook
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21 | W or Up: Forward
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22 | S or Down:Backward
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23 | A: Step left
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24 | D: Step right
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25 | PgUp: Move upwards
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26 | PgDown: Move downwards
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27 | F: Toggle frame rate stats on/off
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28 | R: Render mode
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29 | T: Cycle texture filtering
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30 | Bilinear, Trilinear, Anisotropic(8)
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31 | P: Toggle on/off display of camera position / orientation
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32 | -----------------------------------------------------------------------------
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33 | */
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34 |
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35 | #ifndef __KdTreeAppListener_H__
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36 | #define __KdTreeAppListener_H__
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37 |
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38 | #include <Ogre.h>
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39 | #include <OgreKeyEvent.h>
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40 | #include <OgreEventListeners.h>
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41 | #include <OgreStringConverter.h>
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42 | #include <OgreException.h>
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43 | #include <OgreTextAreaOverlayElement.h>
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44 |
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45 | #include <OgreKdTree.h>
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46 |
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47 | #define CONV_OCM_TO_KDT_ALG(i) (i == 0 ? 3 : i)
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48 | #define CONV_KDT_TO_OCM_ALG(i) (i % 3)
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49 | #define VIZ_VIEWPORT_Z_ORDER 10
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50 |
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51 | #define TERRAIN_SCENE "terrain"
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52 |
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53 | using namespace Ogre;
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54 |
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55 | struct FrameInfo
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56 | {
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57 | FrameInfo(Vector3 pos, Quaternion or, Real time):
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58 | mPosition(pos), mOrientation(or), mElapsedTime(time)
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59 | { }
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60 |
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61 | Vector3 mPosition;
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62 | Quaternion mOrientation;
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63 | Real mElapsedTime;
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64 | };
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65 |
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66 | typedef std::list<FrameInfo> FrameList;
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67 |
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68 | class KdTreeAppListener: public FrameListener, public KeyListener
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69 | {
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70 |
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71 | public:
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72 | // visualization modes for scene nodes
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73 | enum VizMode
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74 | {
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75 | NODEVIZ_NONE,
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76 | NODEVIZ_RENDER_NODES,
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77 | NODEVIZ_RENDER_NODES_AND_CONTENT,
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78 | NODEVIZ_MODES_NUM
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79 | };
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80 |
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81 | enum SceneMgr
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82 | {
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83 | SM_KDT,
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84 | SM_KTE,
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85 | SM_OCM,
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86 | SM_OCT,
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87 | SM_TER,
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88 | SM_GEN,
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89 | SM_SIZE,
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90 | SM_NOTSET
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91 | };
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92 |
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93 | enum ShowTree
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94 | {
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95 | SHOWTREE_OFF,
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96 | SHOWTREE_HILITE,
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97 | SHOWTREE_ALL,
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98 | SHOWTREE_MODES_NUM
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99 | };
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100 |
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101 | enum AppState
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102 | {
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103 | AS_NORMAL,
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104 | AS_RECORD,
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105 | AS_PLAYBACK
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106 | };
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107 |
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108 | struct Options
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109 | {
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110 | Options():
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111 | mRotateSpeed(36.0f),
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112 | mMoveSpeed(100.0f),
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113 | mRotationPeriod(30.0f),
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114 | mKT(2.0f),
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115 | mKI(1.0f),
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116 | mMaxDepth(12),
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117 | mSceneManager(SM_KDT),
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118 | mRenderMethod(KdTree::KDRM_GTP_CHC),
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119 | mBuildMethod(KdTree::KDBM_PRIORITYQUEUE),
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120 | mDemoMode(false),
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121 | mEnhancedVisibility(false),
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122 | mDemoInterval(1.0f)
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123 | {
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124 |
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125 | }
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126 |
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127 | String mSceneFiles;
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128 | String mDemoInfileName;
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129 | String mDemoOutfileName;
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130 | String mDemoLogfileName;
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131 | String mComment;
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132 | Degree mRotateSpeed;
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133 | Real mMoveSpeed;
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134 | Real mRotationPeriod;
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135 | Real mKT;
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136 | Real mKI;
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137 | int mMaxDepth;
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138 | int mSceneManager;
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139 | int mRenderMethod;
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140 | int mBuildMethod;
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141 | bool mDemoMode;
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142 | bool mEnhancedVisibility;
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143 | Real mDemoInterval;
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144 | };
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145 |
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146 | struct DemoStats
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147 | {
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148 | unsigned int mTotalNumFrames;
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149 | unsigned int mNumFrames;
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150 | Real mTotalEllapsedTime;
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151 | Real mEllapsedTime;
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152 | } mDemoStats;
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153 |
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154 | // Constructor takes a RenderWindow because it uses that to determine input context
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155 | KdTreeAppListener(RenderWindow* win, SceneManager* sm, const Options& options,
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156 | bool useBufferedInputKeys = false, bool useBufferedInputMouse = false);
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157 |
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158 | virtual ~KdTreeAppListener(void);
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159 |
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160 | void initOverlayElement(OverlayElement **elInfo, String ext,
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161 | String name, int top, String caption);
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162 |
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163 | void initStatsOverlay(void);
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164 |
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165 | void initKdTreeOverlay(void);
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166 |
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167 | void showDebugOverlay(bool show);
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168 |
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169 | void toggleVizCamera(void);
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170 |
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171 | void toggleShowBoxes(void);
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172 |
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173 | void toggleEnhancedVisibility(void);
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174 |
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175 | void toggleBuildMethod(void);
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176 |
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177 | void toggleRenderMethod(void);
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178 |
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179 | virtual bool processUnbufferedKeyInput(const FrameEvent& evt);
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180 |
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181 | bool processUnbufferedMouseInput(const FrameEvent& evt);
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182 |
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183 | void moveCamera(void);
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184 |
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185 | // Override frameStarted event to process that (don't care about frameEnded)
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186 | bool frameStarted(const FrameEvent& evt);
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187 |
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188 | bool frameEnded(const FrameEvent& evt);
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189 |
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190 | void switchMouseMode(void);
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191 |
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192 | void switchKeyMode(void);
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193 |
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194 | void keyClicked(KeyEvent* e);
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195 |
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196 | void keyPressed(KeyEvent* e) {};
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197 | void keyReleased(KeyEvent* e) {};
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198 |
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199 | const static Real DEMO_WAIT;
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200 | const static String NA;
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201 | const static String RENDERMETHOD[];
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202 | const static String RENDERMETHODCAPTION[];
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203 | const static String BUILDMETHOD[];
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204 | const static String BUILDMETHODCAPTION[];
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205 | const static String SCENEMANAGER[];
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206 | const static String SCENEMANAGERNAME[];
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207 | protected:
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208 | // basic
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209 | RenderWindow* mWindow;
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210 | SceneManager *mSceneMgr;
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211 | Options mOptions;
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212 | bool mUseBufferedInputKeys, mUseBufferedInputMouse, mInputTypeSwitchingOn;
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213 |
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214 | // elements
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215 | SceneNode *mCamNode;
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216 | Camera* mCamera;
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217 | Camera* mTopCam;
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218 |
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219 | // toggle
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220 | bool mStatsOn;
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221 |
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222 | bool mVizCamera;
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223 | bool mFreeMove;
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224 | bool mTopCamFollow;
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225 |
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226 | int mShowTree;
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227 |
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228 | // counters
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229 | int mSeqNum;
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230 | unsigned int mNumScreenShots;
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231 |
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232 | // rendering/texture options
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233 | int mSceneDetailIndex;
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234 | TextureFilterOptions mFiltering;
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235 | int mAniso;
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236 |
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237 | // chc stats
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238 | Real mDelayedQueriesIssued;
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239 | Real mDelayedTraversedNodes;
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240 |
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241 | // overlays
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242 | Overlay *mDemoOverlay;
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243 | Overlay *mDebugOverlay;
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244 | Overlay *mKdTreeOverlay;
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245 |
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246 | OverlayElement *mDemoStatus;
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247 | TextAreaOverlayElement *mDemoTime;
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248 |
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249 |
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250 | OverlayElement *mRenderMethodInfo;
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251 | OverlayElement *mEnhancedVisInfo;
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252 | OverlayElement *mBuildMethodInfo;
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253 | OverlayElement *mKdTreeMaxDepthInfo;
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254 | OverlayElement *mHighlightLevelInfo;
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255 | OverlayElement *mKTInfo;
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256 | OverlayElement *mKIInfo;
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257 | OverlayElement *mMovementInfo;
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258 | OverlayElement *mTopCamInfo;
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259 |
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260 | OverlayElement *mFrustumCulledNodesInfo;
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261 | OverlayElement *mQueryCulledNodesInfo;
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262 | OverlayElement *mTraversedNodesInfo;
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263 | OverlayElement *mHierarchyNodesInfo;
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264 | OverlayElement *mRenderedNodesInfo;
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265 | OverlayElement *mObjectsCountInfo;
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266 | OverlayElement *mQueriesIssuedInfo;
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267 |
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268 | // input
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269 | EventProcessor* mEventProcessor;
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270 | InputReader* mInputDevice;
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271 |
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272 | // movement
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273 | Vector3 mTranslateVector;
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274 | Vector3 mVizCamTransVect;
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275 | Radian mRotX, mRotY;
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276 | float mMoveScale;
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277 | Degree mRotScale;
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278 | Radian mDeathAngle;
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279 | // for terrain
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280 | RaySceneQuery *mRaySceneQuery;
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281 |
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282 | // just to stop toggles flipping too fast
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283 | Real mTimeUntilNextToggle ;
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284 |
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285 | // stuff for walkthrough recording/playback
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286 | //std::ofstream mDemoFramesLog;
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287 | std::list<Real> mDemoFPS;
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288 | Real mTimeUntilNextLogWrite;
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289 | FrameList mFrameList;
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290 | FrameList::iterator mCurrFrame;
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291 | Real mTimeRemaining;
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292 | Real mWaitBeforeDemoStart;
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293 |
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294 | AppState mAppState;
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295 |
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296 | void setDemoOverlay();
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297 |
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298 | void toggleRecord();
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299 | void togglePlayback();
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300 |
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301 | /** write FPS stats to log file (csv) **/
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302 | void saveLog();
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303 |
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304 | void saveFrameInfo(Real elapsedTime);
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305 |
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306 | /** save demo frame data to file **/
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307 | static void saveFrames(const String& filename, FrameList& framelist);
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308 | static void saveFramesAscii(const String& filename, FrameList& framelist);
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309 | static void saveFramesBinary(const String& filename, FrameList& framelist);
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310 |
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311 | /** load demo frame data from file **/
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312 | static void loadFrames(const String& filename, FrameList& framelist);
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313 | static void loadFramesAscii(const String& filename, FrameList& framelist);
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314 | static void loadFramesBinary(const String& filename, FrameList& framelist);
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315 |
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316 | void updateStats(void);
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317 | };
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318 |
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319 | #endif
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320 |
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