1 | /* ==========================================================================
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2 | * (C) 2006 Universitat Jaume I
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3 | * ==========================================================================
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4 | * PROYECT: GAME TOOLS
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5 | * ==========================================================================*/
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6 | /** CONTENT:
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7 | *
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8 | *
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9 | * @file main.cpp
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10 | /** COMMENTS:
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11 | * Model must be in "media/models" folder.
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12 | * Lod file must be in "media/GT" folder.
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13 | /*===========================================================================*/
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14 | #include "ExampleApplication.h"
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15 | #include "GeoLodStripsLibrary.h"
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16 | #include "GeoMeshLoader.h"
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17 |
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18 |
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19 | // Distance values
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20 | #define dist_min 1100
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21 | #define dist_max 2000
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22 |
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23 | // Model name
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24 | #define model_name "dwarf2"
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25 |
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26 |
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27 | //Global variables
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28 | Entity* entity;
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29 | Geometry::LodStripsLibrary* myStrips;
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30 | Ogre::Mesh *ogreMesh=NULL;
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31 | Geometry::GeoMeshLoader *meshloader=NULL;
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32 | SceneNode* node;
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33 |
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34 | MaterialPtr *mat;
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35 |
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36 | ColourValue color=ColourValue::Red;
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37 |
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38 | Camera* theCam;
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39 | Entity* pPlaneEnt;
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40 |
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41 | OverlayElement* mInfo;
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42 | OverlayElement* mInfo2;
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43 |
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44 | class CustomIndexData : public Geometry::IndexData
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45 | {
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46 | private:
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47 | Ogre::Mesh *targetMesh;
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48 | Ogre::HardwareIndexBufferSharedPtr ibuf;
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49 | Ogre::RenderOperation mRenderOp;
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50 | unsigned long* pIdx;
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51 | public:
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52 | CustomIndexData(Ogre::Mesh *ogremesh):Geometry::IndexData(){
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53 | targetMesh=ogremesh;
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54 | pIdx=NULL;
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55 | }
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56 | virtual ~CustomIndexData(void){}
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57 |
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58 | virtual void Begin(unsigned int submeshid, unsigned int indexcount){
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59 | targetMesh->getSubMesh(submeshid)->_getRenderOperation(mRenderOp,0);
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60 | ibuf = mRenderOp.indexData->indexBuffer;
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61 | mRenderOp.indexData->indexCount = indexcount;
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62 | pIdx = static_cast<unsigned long*>(ibuf->lock(Ogre::HardwareBuffer::HBL_NORMAL));
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63 | }
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64 | virtual void SetIndex(unsigned int i, unsigned int index){
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65 | pIdx[i] = index; //lodStripsLib->dataRetrievalInterface->GetIndex(k+offset);
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66 | }
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67 | virtual void End(){
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68 | ibuf->unlock();
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69 | }
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70 | virtual unsigned int GetIndex(unsigned int) const { return 0; } // HAY QUE ELIMINAR ESTA FUNCION
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71 |
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72 | virtual void BorrowIndexData(const Geometry::IndexData *){}
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73 |
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74 | };
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75 |
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76 | class FresnelFrameListener : public ExampleFrameListener
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77 | {
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78 | int manage;
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79 |
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80 | public:
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81 |
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82 | FresnelFrameListener(RenderWindow* win, Camera* cam)
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83 | : ExampleFrameListener(win, cam, false, false)
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84 | {
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85 | manage=1;
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86 | }
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87 |
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88 | bool frameStarted(const FrameEvent& evt)
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89 | {
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90 | Vector3 dist;
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91 | int distance=0,inc2=0,d;
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92 | unsigned int nlod,diflods;
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93 |
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94 | // Move upto 80 units/second
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95 | Real MoveFactor = 180.0 * evt.timeSinceLastFrame;
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96 |
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97 | // Copy the current state of the input devices
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98 | mInputDevice->capture();
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99 |
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100 | // If this is the first frame, pick a speed
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101 | if (evt.timeSinceLastFrame == 0)
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102 | {
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103 | mMoveScale = 1;
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104 | mRotScale = 0.1;
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105 | }
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106 | // Otherwise scale movement units by time passed since last frame
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107 | else
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108 | {
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109 | // Move about 100 units per second,
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110 | mMoveScale = mMoveSpeed * evt.timeSinceLastFrame;
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111 | // Take about 10 seconds for full rotation
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112 | mRotScale = mRotateSpeed * evt.timeSinceLastFrame;
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113 | }
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114 |
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115 | mRotX = 0;
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116 | mRotY = 0;
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117 | mTranslateVector = Vector3::ZERO;
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118 |
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119 | //LOD selection
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120 | int difdist = dist_max - dist_min;
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121 |
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122 | int i=0;
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123 |
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124 | dist = node->getPosition() - mCamera->getPosition();
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125 | distance =dist.length();
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126 |
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127 | float lodfactor = (float)(distance - dist_min) / (float)(dist_max - dist_min);
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128 | lodfactor = 1.0f - lodfactor;
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129 |
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130 | if (lodfactor<0.0f)
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131 | lodfactor=0.0f;
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132 | if (lodfactor>1.0f)
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133 | lodfactor=1.0f;
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134 |
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135 | static float lodfactorBefore = -1.0f;
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136 | if (fabsf(lodfactorBefore-lodfactor)>0.03f ||
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137 | (lodfactorBefore>0.0f && lodfactor==0.0f) ||
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138 | (lodfactorBefore<1.0f && lodfactor==1.0f))
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139 | {
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140 | myStrips->GoToLod(lodfactor);
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141 | lodfactorBefore=lodfactor;
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142 | }
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143 |
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144 | // Move the node
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145 | if(mInputDevice->isKeyDown(Ogre::KC_UP) ||
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146 | mInputDevice->isKeyDown(Ogre::KC_W) ||
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147 | mInputDevice->isKeyDown(Ogre::KC_NUMPAD5))
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148 | mTranslateVector.z = -mMoveScale;
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149 |
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150 | if(mInputDevice->isKeyDown(Ogre::KC_DOWN) ||
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151 | mInputDevice->isKeyDown(Ogre::KC_S) ||
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152 | mInputDevice->isKeyDown(Ogre::KC_NUMPAD2))
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153 | mTranslateVector.z = mMoveScale;
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154 |
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155 | if (mInputDevice->isKeyDown(Ogre::KC_A) ||
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156 | mInputDevice->isKeyDown(Ogre::KC_NUMPAD1))
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157 | mTranslateVector.x = -mMoveScale;
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158 |
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159 | if (mInputDevice->isKeyDown(Ogre::KC_D) ||
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160 | mInputDevice->isKeyDown(Ogre::KC_NUMPAD3))
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161 | mTranslateVector.x = mMoveScale;
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162 |
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163 |
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164 | if(mInputDevice->isKeyDown(Ogre::KC_LEFT))
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165 | mCamera->yaw(mRotScale);
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166 |
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167 | if(mInputDevice->isKeyDown(Ogre::KC_RIGHT))
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168 | mCamera->yaw(-mRotScale);
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169 |
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170 | // Move the cam
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171 | /* if(mInputDevice->isKeyDown(Ogre::KC_W))
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172 | node->translate(0,mMoveScale,0);
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173 |
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174 | if(mInputDevice->isKeyDown(Ogre::KC_S))
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175 | node->translate(0,-mMoveScale,0);
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176 |
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177 | if(mInputDevice->isKeyDown(Ogre::KC_Z))
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178 | node->scale(1.01,1.01,1.01);
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179 |
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180 | if(mInputDevice->isKeyDown(Ogre::KC_X))
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181 | node->scale(0.99,0.99,0.99);
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182 |
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183 | // Rotate
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184 | if(mInputDevice->isKeyDown(Ogre::KC_A))
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185 | node->yaw(mRotScale);
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186 |
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187 | if(mInputDevice->isKeyDown(Ogre::KC_D))
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188 | node->yaw(-mRotScale);*/
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189 |
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190 | if(mInputDevice->isKeyDown(Ogre::KC_ESCAPE))
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191 | {
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192 | delete myStrips;
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193 |
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194 | delete [] mat;
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195 |
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196 | return false;
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197 | }
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198 |
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199 | if( mInputDevice->getMouseButton( 1 ) )
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200 | {
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201 | mTranslateVector.x += mInputDevice->getMouseRelativeX() * 0.13;
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202 | mTranslateVector.y -= mInputDevice->getMouseRelativeY() * 0.13;
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203 | }
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204 | else
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205 | {
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206 | mRotX = Degree(-mInputDevice->getMouseRelativeX() * 0.13);
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207 | mRotY = Degree(-mInputDevice->getMouseRelativeY() * 0.13);
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208 | }
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209 |
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210 |
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211 | char cadena[256];
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212 |
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213 |
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214 | sprintf(cadena,"Distance: %d",distance);
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215 |
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216 | mInfo->setCaption(cadena);
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217 |
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218 | sprintf(cadena,"LOD factor: %f",lodfactor);
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219 |
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220 | mInfo2->setCaption(cadena);
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221 |
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222 | mCamera->yaw(mRotX);
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223 | mCamera->pitch(mRotY);
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224 | mCamera->moveRelative(mTranslateVector);
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225 |
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226 | return true;
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227 | }
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228 | };
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229 |
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230 | class LodStripsApplication : public ExampleApplication
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231 | {
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232 | protected:
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233 | public:
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234 | LodStripsApplication() {}
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235 | ~LodStripsApplication() {}
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236 |
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237 | protected:
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238 |
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239 | // Just override the mandatory create scene method
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240 | void createScene(void)
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241 | {
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242 | Entity* pEnt;
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243 |
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244 | mat = new MaterialPtr[1];
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245 |
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246 | theCam = mCamera;
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247 | theCam->setPosition(0,-100,dist_min-600.0f);
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248 | // Set ambient light
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249 | mSceneMgr->setAmbientLight(ColourValue(0.3, 0.3, 0.3));
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250 |
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251 | // Create a directional light
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252 | Light* l = mSceneMgr->createLight("MainLight");
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253 | l->setType(Light::LT_DIRECTIONAL);
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254 | l->setDirection(0.0,0.0,-1.0);
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255 |
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256 |
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257 | mSceneMgr->setSkyBox(true, "Examples/CloudyNoonSkyBox");
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258 |
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259 | // My node to which all objects will be attached
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260 | SceneNode* myRootNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
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261 |
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262 |
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263 | pEnt = mSceneMgr->createEntity( "PoolFloor", "PoolFloor.mesh" );
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264 | myRootNode->attachObject(pEnt);
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265 | myRootNode->scale(6.0,6.0,6.0);
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266 |
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267 | std::string model_file=model_name;
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268 | model_file.append(".mesh");
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269 |
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270 | //Models
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271 | entity = mSceneMgr->createEntity(model_name, "../../../OgreStuff/media/GT/ogrolod.mesh");
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272 |
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273 | ogreMesh = entity->getMesh().getPointer();
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274 |
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275 | // load LOD info from the object
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276 | meshloader=new Geometry::GeoMeshLoader;
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277 | Geometry::Mesh *themesh = meshloader->load("../../../OgreStuff/media/GT/ogrolod.mesh");
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278 |
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279 | node = mSceneMgr->getRootSceneNode()->createChildSceneNode();
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280 | node->attachObject( entity );
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281 |
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282 | std::string lod_file="../../media/GT/";
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283 | lod_file.append(model_name);
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284 | lod_file.append(".lod");
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285 |
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286 | if (!meshloader->GetLodStripsData())
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287 | OGRE_EXCEPT(1, "The loaded mesh does not contain any LOD info","LOD Demo");
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288 |
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289 | myStrips = new Geometry::LodStripsLibrary( meshloader->GetLodStripsData(),
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290 | themesh,
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291 | new CustomIndexData(ogreMesh) );
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292 |
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293 | entity->setNormaliseNormals(true);
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294 | entity->setMaterialName("LODStripsDemo/Ogro");
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295 |
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296 | for (int i=-3; i<6; i++) // 7
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297 | for (int j=0; j<10; j++) // 4
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298 | {
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299 | char newObjName[16]="";
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300 | sprintf(newObjName,"arbol_%d_%d",i,j);
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301 | Ogre::SceneNode * auxnode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
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302 | Ogre::Entity *auxen = entity->clone(newObjName);
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303 | auxnode->attachObject(auxen);
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304 | auxnode->rotate(Ogre::Vector3(0,1,0),Ogre::Degree(180.0f),Ogre::Node::TS_WORLD);
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305 | auxnode->scale(30.0f,30.0f,30.0f);
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306 | float randomsepx = (float)((rand()%18)-9);
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307 | float randomsepy = (float)((rand()%12)-6);
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308 | auxnode->translate(i*70.0f+randomsepx,-150.0f,-j*70.0f-randomsepx);
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309 | auxen->setNormaliseNormals(true);
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310 | }
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311 |
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312 | node->translate(0,0,-500.0f);
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313 |
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314 | // show overlay
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315 | Overlay* pOver = OverlayManager::getSingleton().getByName("Demo_LodStrips/Overlay");
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316 | mInfo = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Info_1");
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317 | mInfo2 = OverlayManager::getSingleton().getOverlayElement("Demo_LodStrips/Info_2");
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318 | pOver->show();
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319 |
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320 | }
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321 |
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322 | void createFrameListener(void)
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323 | {
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324 | mFrameListener= new FresnelFrameListener(mWindow, mCamera);
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325 | mFrameListener->showDebugOverlay(true);
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326 | mRoot->addFrameListener(mFrameListener);
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327 | }
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328 |
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329 | };
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330 |
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331 |
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332 |
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333 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
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334 | #define WIN32_LEAN_AND_MEAN
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335 | #include "windows.h"
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336 | #endif
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337 |
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338 | #ifdef __cplusplus
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339 | extern "C" {
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340 | #endif
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341 |
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342 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
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343 | INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
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344 | #else
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345 | int main(int argc, char **argv)
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346 | #endif
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347 | {
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348 | // Create application object
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349 | LodStripsApplication app;
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350 |
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351 | try {
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352 | app.go();
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353 | } catch( Exception& e ) {
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354 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
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355 | MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
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356 | #else
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357 | std::cerr << "An exception has occured: " << e.getFullDescription();
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358 | #endif
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359 | }
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360 |
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361 |
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362 | return 0;
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363 | }
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364 |
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365 | #ifdef __cplusplus
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366 | }
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367 | #endif
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