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 | /* Static water simulation by eru
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15 | * Started 29.05.2003, 20:54:37
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16 | */
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17 | #include "ExampleApplication.h"
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18 | #include "OgreBillboardParticleRenderer.h"
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19 | #include "WaterMesh.h"
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20 |
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21 | #include <iostream>
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22 |
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23 | AnimationState* mAnimState;
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24 |
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25 | // Mesh stuff
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26 | #define MESH_NAME "WaterMesh"
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27 | #define ENTITY_NAME "WaterEntity"
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28 | #define MATERIAL_PREFIX "Examples/Water"
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29 | #define MATERIAL_NAME "Examples/Water0"
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30 | #define COMPLEXITY 64 // watch out - number of polys is 2*ACCURACY*ACCURACY !
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31 | #define PLANE_SIZE 3000.0f
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32 | #define CIRCLES_MATERIAL "Examples/Water/Circles"
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33 |
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34 | /* Some global variables */
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35 | SceneNode *headNode ;
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36 | Overlay* waterOverlay ;
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37 | ParticleSystem *particleSystem ;
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38 | ParticleEmitter *particleEmitter ;
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39 | SceneManager *sceneMgr ;
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40 |
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41 | void prepareCircleMaterial()
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42 | {
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43 | char *bmap = new char[256 * 256 * 4] ;
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44 | memset(bmap, 127, 256 * 256 * 4);
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45 | for(int b=0;b<16;b++) {
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46 | int x0 = b % 4 ;
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47 | int y0 = b >> 2 ;
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48 | Real radius = 4.0f + 1.4 * (float) b ;
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49 | for(int x=0;x<64;x++) {
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50 | for(int y=0;y<64;y++) {
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51 | Real dist = Math::Sqrt((x-32)*(x-32)+(y-32)*(y-32)); // 0..ca.45
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52 | dist = fabs(dist -radius -2) / 2.0f ;
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53 | dist = dist * 255.0f;
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54 | if (dist>255)
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55 | dist=255 ;
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56 | int colour = 255-(int)dist ;
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57 | colour = (int)( ((Real)(15-b))/15.0f * (Real) colour );
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58 |
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59 | bmap[4*(256*(y+64*y0)+x+64*x0)+0]=colour ;
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60 | bmap[4*(256*(y+64*y0)+x+64*x0)+1]=colour ;
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61 | bmap[4*(256*(y+64*y0)+x+64*x0)+2]=colour ;
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62 | bmap[4*(256*(y+64*y0)+x+64*x0)+3]=colour ;
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63 | }
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64 | }
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65 | }
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66 |
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67 | DataStreamPtr imgstream(new MemoryDataStream(bmap, 256 * 256 * 4));
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68 | //~ Image img;
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69 | //~ img.loadRawData( imgstream, 256, 256, PF_A8R8G8B8 );
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70 | //~ TextureManager::getSingleton().loadImage( CIRCLES_MATERIAL , img );
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71 | TextureManager::getSingleton().loadRawData(CIRCLES_MATERIAL,
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72 | ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
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73 | imgstream, 256, 256, PF_A8R8G8B8);
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74 | MaterialPtr material =
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75 | MaterialManager::getSingleton().create( CIRCLES_MATERIAL,
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76 | ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
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77 | TextureUnitState *texLayer = material->getTechnique(0)->getPass(0)->createTextureUnitState( CIRCLES_MATERIAL );
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78 | texLayer->setTextureAddressingMode( TextureUnitState::TAM_CLAMP );
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79 | material->setSceneBlending( SBT_ADD );
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80 | material->setDepthWriteEnabled( false ) ;
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81 | material->load();
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82 | // finished with bmap so release the memory
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83 | delete [] bmap;
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84 | }
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85 |
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86 |
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87 | /* =========================================================================*/
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88 | /* WaterCircle class */
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89 | /* =========================================================================*/
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90 | #define CIRCLE_SIZE 500.0
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91 | #define CIRCLE_TIME 0.5f
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92 | class WaterCircle
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93 | {
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94 | private:
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95 | String name ;
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96 | SceneNode *node ;
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97 | MeshPtr mesh ;
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98 | SubMesh *subMesh ;
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99 | Entity *entity ;
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100 | Real tm ;
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101 | static bool first ;
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102 | // some buffers shared by all circles
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103 | static HardwareVertexBufferSharedPtr posnormVertexBuffer ;
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104 | static HardwareIndexBufferSharedPtr indexBuffer ; // indices for 2 faces
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105 | static HardwareVertexBufferSharedPtr *texcoordsVertexBuffers ;
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106 |
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107 | float *texBufData;
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108 | void _prepareMesh()
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109 | {
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110 | int i,lvl ;
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111 |
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112 | mesh = MeshManager::getSingleton().createManual(name,
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113 | ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME) ;
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114 | subMesh = mesh->createSubMesh();
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115 | subMesh->useSharedVertices=false;
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116 |
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117 | int numFaces = 2 ;
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118 | int numVertices = 4 ;
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119 |
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120 | if (first) { // first Circle, create some static common data
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121 | first = false ;
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122 |
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123 | // static buffer for position and normals
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124 | posnormVertexBuffer =
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125 | HardwareBufferManager::getSingleton().createVertexBuffer(
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126 | 6*sizeof(float), // size of one vertex data
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127 | 4, // number of vertices
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128 | HardwareBuffer::HBU_STATIC_WRITE_ONLY, // usage
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129 | false); // no shadow buffer
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130 | float *posnormBufData = (float*) posnormVertexBuffer->
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131 | lock(HardwareBuffer::HBL_DISCARD);
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132 | for(i=0;i<numVertices;i++) {
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133 | posnormBufData[6*i+0]=((Real)(i%2)-0.5f)*CIRCLE_SIZE; // pos X
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134 | posnormBufData[6*i+1]=0; // pos Y
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135 | posnormBufData[6*i+2]=((Real)(i/2)-0.5f)*CIRCLE_SIZE; // pos Z
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136 | posnormBufData[6*i+3]=0 ; // normal X
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137 | posnormBufData[6*i+4]=1 ; // normal Y
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138 | posnormBufData[6*i+5]=0 ; // normal Z
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139 | }
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140 | posnormVertexBuffer->unlock();
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141 |
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142 | // static buffers for 16 sets of texture coordinates
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143 | texcoordsVertexBuffers = new HardwareVertexBufferSharedPtr[16];
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144 | for(lvl=0;lvl<16;lvl++) {
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145 | texcoordsVertexBuffers[lvl] =
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146 | HardwareBufferManager::getSingleton().createVertexBuffer(
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147 | 2*sizeof(float), // size of one vertex data
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148 | numVertices, // number of vertices
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149 | HardwareBuffer::HBU_STATIC_WRITE_ONLY, // usage
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150 | false); // no shadow buffer
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151 | float *texcoordsBufData = (float*) texcoordsVertexBuffers[lvl]->
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152 | lock(HardwareBuffer::HBL_DISCARD);
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153 | float x0 = (Real)(lvl % 4) * 0.25 ;
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154 | float y0 = (Real)(lvl / 4) * 0.25 ;
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155 | y0 = 0.75-y0 ; // upside down
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156 | for(i=0;i<4;i++) {
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157 | texcoordsBufData[i*2 + 0]=
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158 | x0 + 0.25 * (Real)(i%2) ;
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159 | texcoordsBufData[i*2 + 1]=
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160 | y0 + 0.25 * (Real)(i/2) ;
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161 | }
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162 | texcoordsVertexBuffers[lvl]->unlock();
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163 | }
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164 |
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165 | // Index buffer for 2 faces
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166 | unsigned short faces[6] = {2,1,0, 2,3,1};
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167 | indexBuffer =
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168 | HardwareBufferManager::getSingleton().createIndexBuffer(
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169 | HardwareIndexBuffer::IT_16BIT,
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170 | 6,
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171 | HardwareBuffer::HBU_STATIC_WRITE_ONLY);
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172 | indexBuffer->writeData(0,
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173 | indexBuffer->getSizeInBytes(),
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174 | faces,
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175 | true); // true?
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176 | }
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177 |
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178 | // Initialize vertex data
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179 | subMesh->vertexData = new VertexData();
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180 | subMesh->vertexData->vertexStart = 0;
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181 | subMesh->vertexData->vertexCount = 4;
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182 | // first, set vertex buffer bindings
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183 | VertexBufferBinding *vbind = subMesh->vertexData->vertexBufferBinding ;
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184 | vbind->setBinding(0, posnormVertexBuffer);
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185 | vbind->setBinding(1, texcoordsVertexBuffers[0]);
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186 | // now, set vertex buffer declaration
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187 | VertexDeclaration *vdecl = subMesh->vertexData->vertexDeclaration ;
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188 | vdecl->addElement(0, 0, VET_FLOAT3, VES_POSITION);
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189 | vdecl->addElement(0, 3*sizeof(float), VET_FLOAT3, VES_NORMAL);
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190 | vdecl->addElement(1, 0, VET_FLOAT2, VES_TEXTURE_COORDINATES);
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191 |
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192 | // Initialize index data
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193 | subMesh->indexData->indexBuffer = indexBuffer;
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194 | subMesh->indexData->indexStart = 0;
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195 | subMesh->indexData->indexCount = 6;
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196 |
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197 | // set mesh bounds
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198 | AxisAlignedBox circleBounds(-CIRCLE_SIZE/2.0f, 0, -CIRCLE_SIZE/2.0f,
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199 | CIRCLE_SIZE/2.0f, 0, CIRCLE_SIZE/2.0f);
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200 | mesh->_setBounds(circleBounds);
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201 | mesh->load();
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202 | mesh->touch();
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203 | }
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204 | public:
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205 | int lvl ;
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206 | void setTextureLevel()
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207 | {
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208 | subMesh->vertexData->vertexBufferBinding->setBinding(1, texcoordsVertexBuffers[lvl]);
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209 | }
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210 | WaterCircle(const String& name, Real x, Real y)
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211 | {
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212 | this->name = name ;
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213 | _prepareMesh();
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214 | node = static_cast<SceneNode*> (sceneMgr->getRootSceneNode()->createChild(name));
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215 | node->translate(x*(PLANE_SIZE/COMPLEXITY), 10, y*(PLANE_SIZE/COMPLEXITY));
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216 | entity = sceneMgr->createEntity(name, name);
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217 | entity->setMaterialName(CIRCLES_MATERIAL);
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218 | node->attachObject(entity);
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219 | tm = 0 ;
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220 | lvl = 0 ;
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221 | setTextureLevel();
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222 | }
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223 | ~WaterCircle()
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224 | {
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225 | MeshManager::getSingleton().remove(mesh->getHandle());
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226 | sceneMgr->destroyEntity(entity->getName());
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227 | static_cast<SceneNode*> (sceneMgr->getRootSceneNode())->removeChild(node->getName());
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228 | }
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229 | void animate(Real timeSinceLastFrame)
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230 | {
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231 | int lastlvl = lvl ;
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232 | tm += timeSinceLastFrame ;
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233 | lvl = (int) ( (Real)(tm)/CIRCLE_TIME * 16 );
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234 | if (lvl<16 && lvl!=lastlvl) {
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235 | setTextureLevel();
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236 | }
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237 | }
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238 | static void clearStaticBuffers()
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239 | {
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240 | posnormVertexBuffer = HardwareVertexBufferSharedPtr() ;
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241 | indexBuffer = HardwareIndexBufferSharedPtr() ;
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242 | for(int i=0;i<16;i++) {
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243 | texcoordsVertexBuffers[i] = HardwareVertexBufferSharedPtr() ;
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244 | }
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245 | delete [] texcoordsVertexBuffers;
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246 | }
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247 | } ;
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248 | bool WaterCircle::first = true ;
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249 | HardwareVertexBufferSharedPtr WaterCircle::posnormVertexBuffer =
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250 | HardwareVertexBufferSharedPtr() ;
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251 | HardwareIndexBufferSharedPtr WaterCircle::indexBuffer =
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252 | HardwareIndexBufferSharedPtr() ;
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253 | HardwareVertexBufferSharedPtr* WaterCircle::texcoordsVertexBuffers = 0 ;
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254 |
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255 | /* =========================================================================*/
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256 | /* WaterListener class */
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257 | /* =========================================================================*/
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258 | // Event handler
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259 | class WaterListener: public ExampleFrameListener
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260 | {
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261 | protected:
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262 | WaterMesh *waterMesh ;
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263 | Entity *waterEntity ;
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264 | int materialNumber ;
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265 | bool skyBoxOn ;
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266 | Real timeoutDelay ;
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267 |
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268 | #define RAIN_HEIGHT_RANDOM 5
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269 | #define RAIN_HEIGHT_CONSTANT 5
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270 |
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271 |
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272 | typedef std::vector<WaterCircle*> WaterCircles ;
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273 | WaterCircles circles ;
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274 |
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275 | void processCircles(Real timeSinceLastFrame)
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276 | {
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277 | for(unsigned int i=0;i<circles.size();i++) {
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278 | circles[i]->animate(timeSinceLastFrame);
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279 | }
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280 | bool found ;
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281 | do {
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282 | found = false ;
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283 | for(WaterCircles::iterator it = circles.begin() ;
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284 | it != circles.end();
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285 | ++it) {
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286 | if ((*it)->lvl>=16) {
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287 | delete (*it);
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288 | circles.erase(it);
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289 | found = true ;
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290 | break ;
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291 | }
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292 | }
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293 | } while (found) ;
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294 | }
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295 |
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296 | void processParticles()
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297 | {
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298 | static int pindex = 0 ;
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299 | ParticleIterator pit = particleSystem->_getIterator() ;
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300 | while(!pit.end()) {
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301 | Particle *particle = pit.getNext();
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302 | Vector3 ppos = particle->position;
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303 | if (ppos.y<=0 && particle->timeToLive>0) { // hits the water!
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304 | // delete particle
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305 | particle->timeToLive = 0.0f;
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306 | // push the water
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307 | float x = ppos.x / PLANE_SIZE * COMPLEXITY ;
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308 | float y = ppos.z / PLANE_SIZE * COMPLEXITY ;
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309 | float h = rand() % RAIN_HEIGHT_RANDOM + RAIN_HEIGHT_CONSTANT ;
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310 | if (x<1) x=1 ;
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311 | if (x>COMPLEXITY-1) x=COMPLEXITY-1;
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312 | if (y<1) y=1 ;
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313 | if (y>COMPLEXITY-1) y=COMPLEXITY-1;
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314 | waterMesh->push(x,y,-h) ;
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315 | WaterCircle *circle = new WaterCircle(
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316 | "Circle#"+StringConverter::toString(pindex++),
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317 | x, y);
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318 | circles.push_back(circle);
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319 | }
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320 | }
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321 | }
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322 |
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323 | /** Head animation */
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324 | Real headDepth ;
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325 | void animateHead(Real timeSinceLastFrame)
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326 | {
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327 | // sine track? :)
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328 | static double sines[4] = {0,100,200,300};
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329 | static const double adds[4] = {0.3,-1.6,1.1,0.5};
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330 | static Vector3 oldPos = Vector3::UNIT_Z;
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331 | for(int i=0;i<4;i++) {
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332 | sines[i]+=adds[i]*timeSinceLastFrame;
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333 | }
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334 | Real tx = ((sin(sines[0]) + sin(sines[1])) / 4 + 0.5 ) * (float)(COMPLEXITY-2) + 1 ;
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335 | Real ty = ((sin(sines[2]) + sin(sines[3])) / 4 + 0.5 ) * (float)(COMPLEXITY-2) + 1 ;
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336 | waterMesh->push(tx,ty, -headDepth);
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337 | Real step = PLANE_SIZE / COMPLEXITY ;
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338 | headNode->resetToInitialState();
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339 | headNode->scale(3,3,3);
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340 | Vector3 newPos = Vector3(step*tx, headDepth, step*ty);
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341 | Vector3 diffPos = newPos - oldPos ;
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342 | Quaternion headRotation = Vector3::UNIT_Z.getRotationTo(diffPos);
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343 | oldPos = newPos ;
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344 | headNode->translate(newPos);
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345 | headNode->rotate(headRotation);
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346 | }
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347 |
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348 | // GUI updaters
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349 | void updateInfoParamC()
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350 | {
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351 | OverlayManager::getSingleton().getOverlayElement("Example/Water/Param_C") \
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352 | ->setCaption("[1/2]Ripple speed: "+StringConverter::toString(waterMesh->PARAM_C));
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353 | }
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354 | void updateInfoParamD()
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355 | {
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356 | OverlayManager::getSingleton().getOverlayElement("Example/Water/Param_D") \
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357 | ->setCaption("[3/4]Distance: "+StringConverter::toString(waterMesh->PARAM_D));
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358 | }
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359 | void updateInfoParamU()
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360 | {
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361 | OverlayManager::getSingleton().getOverlayElement("Example/Water/Param_U") \
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362 | ->setCaption("[5/6]Viscosity: "+StringConverter::toString(waterMesh->PARAM_U));
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363 | }
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364 | void updateInfoParamT()
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365 | {
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366 | OverlayManager::getSingleton().getOverlayElement("Example/Water/Param_T") \
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367 | ->setCaption("[7/8]Frame time: "+StringConverter::toString(waterMesh->PARAM_T));
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368 | }
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369 | void updateInfoNormals()
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370 | {
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371 | OverlayManager::getSingleton().getOverlayElement("Example/Water/Normals") \
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372 | ->setCaption(String("[N]Normals: ")+((waterMesh->useFakeNormals)?"fake":"real"));
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373 | }
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374 | void switchNormals()
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375 | {
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376 | waterMesh->useFakeNormals = !waterMesh->useFakeNormals ;
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377 | updateInfoNormals() ;
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378 | }
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379 | void updateInfoHeadDepth()
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380 | {
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381 | OverlayManager::getSingleton().getOverlayElement("Example/Water/Depth") \
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382 | ->setCaption(String("[U/J]Head depth: ")+StringConverter::toString(headDepth));
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383 | }
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384 | void updateInfoSkyBox()
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385 | {
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386 | OverlayManager::getSingleton().getOverlayElement("Example/Water/SkyBox")
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387 | ->setCaption(String("[B]SkyBox: ")+String((skyBoxOn)?"On":"Off") );
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388 | }
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389 | void updateMaterial()
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390 | {
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391 | String materialName = MATERIAL_PREFIX+StringConverter::toString(materialNumber);
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392 | MaterialPtr material = MaterialManager::getSingleton().getByName(materialName);
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393 | if (material.isNull())
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394 | {
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395 | if(materialNumber)
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396 | {
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397 | materialNumber = 0 ;
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398 | updateMaterial();
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399 | return ;
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400 | }
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401 | else
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402 | {
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403 | OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
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404 | "Material "+materialName+"doesn't exist!",
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405 | "WaterListener::updateMaterial");
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406 | }
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407 | }
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408 | waterEntity->setMaterialName(materialName);
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409 | OverlayManager::getSingleton().getOverlayElement("Example/Water/Material") \
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410 | ->setCaption(String("[M]Material: ")+materialName);
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411 | }
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412 |
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413 | void switchMaterial()
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414 | {
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415 | materialNumber++;
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416 | updateMaterial();
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417 | }
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418 | void switchSkyBox()
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419 | {
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420 | skyBoxOn = !skyBoxOn;
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421 | sceneMgr->setSkyBox(skyBoxOn, "Examples/SceneSkyBox2");
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422 | updateInfoSkyBox();
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423 | }
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424 |
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425 | public:
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426 | WaterListener(RenderWindow* win, Camera* cam,
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427 | WaterMesh *waterMesh, Entity *waterEntity)
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428 | : ExampleFrameListener(win, cam)
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429 | {
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430 | this->waterMesh = waterMesh ;
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431 | this->waterEntity = waterEntity ;
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432 | materialNumber = 8;
|
---|
433 | timeoutDelay = 0.0f;
|
---|
434 | headDepth = 2.0f;
|
---|
435 | skyBoxOn = false ;
|
---|
436 |
|
---|
437 | updateMaterial();
|
---|
438 | updateInfoParamC();
|
---|
439 | updateInfoParamD();
|
---|
440 | updateInfoParamU();
|
---|
441 | updateInfoParamT();
|
---|
442 | updateInfoNormals();
|
---|
443 | updateInfoHeadDepth();
|
---|
444 | updateInfoSkyBox();
|
---|
445 | }
|
---|
446 |
|
---|
447 | virtual ~WaterListener ()
|
---|
448 | {
|
---|
449 | // If when you finish the application is still raining there
|
---|
450 | // are water circles that are still being processed
|
---|
451 | unsigned int activeCircles = this->circles.size ();
|
---|
452 |
|
---|
453 | // Kill the active water circles
|
---|
454 | for (unsigned int i = 0; i < activeCircles; i++)
|
---|
455 | delete (this->circles[i]);
|
---|
456 | }
|
---|
457 |
|
---|
458 | bool frameStarted(const FrameEvent& evt)
|
---|
459 | {
|
---|
460 | bool retval = ExampleFrameListener::frameStarted(evt);
|
---|
461 | mAnimState->addTime(evt.timeSinceLastFrame);
|
---|
462 |
|
---|
463 | // process keyboard events
|
---|
464 | mInputDevice->capture();
|
---|
465 | Real changeSpeed = evt.timeSinceLastFrame ;
|
---|
466 |
|
---|
467 | // adjust keyboard speed with SHIFT (increase) and CONTROL (decrease)
|
---|
468 | if (mInputDevice->isKeyDown(KC_LSHIFT) || mInputDevice->isKeyDown(KC_RSHIFT)) {
|
---|
469 | changeSpeed *= 10.0f ;
|
---|
470 | }
|
---|
471 | if (mInputDevice->isKeyDown(KC_LCONTROL)) {
|
---|
472 | changeSpeed /= 10.0f ;
|
---|
473 | }
|
---|
474 |
|
---|
475 | // rain
|
---|
476 | processCircles(evt.timeSinceLastFrame);
|
---|
477 | if (mInputDevice->isKeyDown(KC_SPACE)) {
|
---|
478 | particleEmitter->setEmissionRate(20.0f);
|
---|
479 | } else {
|
---|
480 | particleEmitter->setEmissionRate(0.0f);
|
---|
481 | }
|
---|
482 | processParticles();
|
---|
483 |
|
---|
484 | // adjust values (some macros for faster change
|
---|
485 | #define ADJUST_RANGE(_value,_keyPlus,_keyMinus,_minVal,_maxVal,_change,_macro) {\
|
---|
486 | if (mInputDevice->isKeyDown(_keyPlus)) \
|
---|
487 | { _value+=_change ; if (_value>=_maxVal) _value = _maxVal ; _macro ; } ; \
|
---|
488 | if (mInputDevice->isKeyDown(_keyMinus)) \
|
---|
489 | { _value-=_change; if (_value<=_minVal) _value = _minVal ; _macro ; } ; \
|
---|
490 | }
|
---|
491 |
|
---|
492 | ADJUST_RANGE(headDepth, KC_U, KC_J, 0, 10, 0.5*changeSpeed, updateInfoHeadDepth()) ;
|
---|
493 |
|
---|
494 | ADJUST_RANGE(waterMesh->PARAM_C, KC_2, KC_1, 0, 10, 0.1f*changeSpeed, updateInfoParamC()) ;
|
---|
495 |
|
---|
496 | ADJUST_RANGE(waterMesh->PARAM_D, KC_4, KC_3, 0.1, 10, 0.1f*changeSpeed, updateInfoParamD()) ;
|
---|
497 |
|
---|
498 | ADJUST_RANGE(waterMesh->PARAM_U, KC_6, KC_5, -2, 10, 0.1f*changeSpeed, updateInfoParamU()) ;
|
---|
499 |
|
---|
500 | ADJUST_RANGE(waterMesh->PARAM_T, KC_8, KC_7, 0, 10, 0.1f*changeSpeed, updateInfoParamT()) ;
|
---|
501 |
|
---|
502 | timeoutDelay-=evt.timeSinceLastFrame ;
|
---|
503 | if (timeoutDelay<=0)
|
---|
504 | timeoutDelay = 0;
|
---|
505 |
|
---|
506 | #define SWITCH_VALUE(_key,_timeDelay, _macro) { \
|
---|
507 | if (mInputDevice->isKeyDown(_key) && timeoutDelay==0) { \
|
---|
508 | timeoutDelay = _timeDelay ; _macro ;} }
|
---|
509 |
|
---|
510 | SWITCH_VALUE(KC_N, 0.5f, switchNormals());
|
---|
511 |
|
---|
512 | SWITCH_VALUE(KC_M, 0.5f, switchMaterial());
|
---|
513 |
|
---|
514 | SWITCH_VALUE(KC_B, 0.5f, switchSkyBox());
|
---|
515 |
|
---|
516 | animateHead(evt.timeSinceLastFrame);
|
---|
517 |
|
---|
518 | waterMesh->updateMesh(evt.timeSinceLastFrame);
|
---|
519 |
|
---|
520 | // check if we are exiting, if so, clear static HardwareBuffers to avoid
|
---|
521 | // segfault
|
---|
522 | if (!retval)
|
---|
523 | WaterCircle::clearStaticBuffers();
|
---|
524 |
|
---|
525 | // return result from default
|
---|
526 | return retval ;
|
---|
527 | }
|
---|
528 | };
|
---|
529 |
|
---|
530 | class WaterApplication : public ExampleApplication
|
---|
531 | {
|
---|
532 | public:
|
---|
533 | WaterApplication()
|
---|
534 | : waterMesh(0)
|
---|
535 | {
|
---|
536 |
|
---|
537 | }
|
---|
538 |
|
---|
539 | ~WaterApplication() {
|
---|
540 | delete waterMesh;
|
---|
541 | }
|
---|
542 |
|
---|
543 | protected:
|
---|
544 | WaterMesh *waterMesh ;
|
---|
545 | Entity *waterEntity ;
|
---|
546 |
|
---|
547 | // Just override the mandatory create scene method
|
---|
548 | void createScene(void)
|
---|
549 | {
|
---|
550 | sceneMgr = mSceneMgr ;
|
---|
551 | // Set ambient light
|
---|
552 | mSceneMgr->setAmbientLight(ColourValue(0.75, 0.75, 0.75));
|
---|
553 |
|
---|
554 | // Create a light
|
---|
555 | Light* l = mSceneMgr->createLight("MainLight");
|
---|
556 | // Accept default settings: point light, white diffuse, just set position
|
---|
557 | // NB I could attach the light to a SceneNode if I wanted it to move automatically with
|
---|
558 | // other objects, but I don't
|
---|
559 | l->setPosition(200,300,100);
|
---|
560 |
|
---|
561 | // Create water mesh and entity
|
---|
562 | waterMesh = new WaterMesh(MESH_NAME, PLANE_SIZE, COMPLEXITY);
|
---|
563 | waterEntity = mSceneMgr->createEntity(ENTITY_NAME,
|
---|
564 | MESH_NAME);
|
---|
565 | //~ waterEntity->setMaterialName(MATERIAL_NAME);
|
---|
566 | SceneNode *waterNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
|
---|
567 | waterNode->attachObject(waterEntity);
|
---|
568 |
|
---|
569 | // Add a head, give it it's own node
|
---|
570 | headNode = waterNode->createChildSceneNode();
|
---|
571 | Entity *ent = mSceneMgr->createEntity("head", "ogrehead.mesh");
|
---|
572 | headNode->attachObject(ent);
|
---|
573 |
|
---|
574 | // Make sure the camera track this node
|
---|
575 | //~ mCamera->setAutoTracking(true, headNode);
|
---|
576 |
|
---|
577 | // Create the camera node, set its position & attach camera
|
---|
578 | SceneNode* camNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
|
---|
579 | camNode->translate(0, 500, PLANE_SIZE);
|
---|
580 | camNode->yaw(Degree(-45));
|
---|
581 | camNode->attachObject(mCamera);
|
---|
582 |
|
---|
583 | // Create light node
|
---|
584 | SceneNode* lightNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
|
---|
585 | lightNode->attachObject(l);
|
---|
586 |
|
---|
587 | // set up spline animation of light node
|
---|
588 | Animation* anim = mSceneMgr->createAnimation("WaterLight", 20);
|
---|
589 | NodeAnimationTrack *track ;
|
---|
590 | TransformKeyFrame *key ;
|
---|
591 | // create a random spline for light
|
---|
592 | track = anim->createNodeTrack(0, lightNode);
|
---|
593 | key = track->createNodeKeyFrame(0);
|
---|
594 | for(int ff=1;ff<=19;ff++) {
|
---|
595 | key = track->createNodeKeyFrame(ff);
|
---|
596 | Vector3 lpos (
|
---|
597 | rand()%(int)PLANE_SIZE , //- PLANE_SIZE/2,
|
---|
598 | rand()%300+100,
|
---|
599 | rand()%(int)PLANE_SIZE //- PLANE_SIZE/2
|
---|
600 | );
|
---|
601 | key->setTranslate(lpos);
|
---|
602 | }
|
---|
603 | key = track->createNodeKeyFrame(20);
|
---|
604 |
|
---|
605 | // Create a new animation state to track this
|
---|
606 | mAnimState = mSceneMgr->createAnimationState("WaterLight");
|
---|
607 | mAnimState->setEnabled(true);
|
---|
608 |
|
---|
609 | // Put in a bit of fog for the hell of it
|
---|
610 | //mSceneMgr->setFog(FOG_EXP, ColourValue::White, 0.0002);
|
---|
611 |
|
---|
612 | // show overlay
|
---|
613 | waterOverlay = OverlayManager::getSingleton().getByName("Example/WaterOverlay");
|
---|
614 | waterOverlay->show();
|
---|
615 |
|
---|
616 | // Let there be rain
|
---|
617 | particleSystem = mSceneMgr->createParticleSystem("rain",
|
---|
618 | "Examples/Water/Rain");
|
---|
619 | particleEmitter = particleSystem->getEmitter(0);
|
---|
620 | SceneNode* rNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
|
---|
621 | rNode->translate(PLANE_SIZE/2.0f, 3000, PLANE_SIZE/2.0f);
|
---|
622 | rNode->attachObject(particleSystem);
|
---|
623 | // Fast-forward the rain so it looks more natural
|
---|
624 | particleSystem->fastForward(20);
|
---|
625 | // It can't be set in .particle file, and we need it ;)
|
---|
626 | static_cast<BillboardParticleRenderer*>(particleSystem->getRenderer())->setBillboardOrigin(BBO_BOTTOM_CENTER);
|
---|
627 |
|
---|
628 | prepareCircleMaterial();
|
---|
629 | }
|
---|
630 |
|
---|
631 | // Create new frame listener
|
---|
632 | void createFrameListener(void)
|
---|
633 | {
|
---|
634 | mFrameListener= new WaterListener(mWindow, mCamera, waterMesh, waterEntity);
|
---|
635 | mRoot->addFrameListener(mFrameListener);
|
---|
636 | }
|
---|
637 |
|
---|
638 | };
|
---|
639 |
|
---|
640 |
|
---|
641 |
|
---|
642 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
|
---|
643 | #define WIN32_LEAN_AND_MEAN
|
---|
644 | #include "windows.h"
|
---|
645 | #endif
|
---|
646 |
|
---|
647 | #ifdef __cplusplus
|
---|
648 | extern "C" {
|
---|
649 | #endif
|
---|
650 |
|
---|
651 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
|
---|
652 | INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
|
---|
653 | #else
|
---|
654 | int main(int argc, char **argv)
|
---|
655 | #endif
|
---|
656 | {
|
---|
657 | // Create application object
|
---|
658 | WaterApplication app;
|
---|
659 |
|
---|
660 | srand(time(0));
|
---|
661 |
|
---|
662 | try {
|
---|
663 | app.go();
|
---|
664 | } catch( Exception& e ) {
|
---|
665 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
|
---|
666 | MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
|
---|
667 | #else
|
---|
668 | std::cerr << "An exception has occured: " << e.getFullDescription();
|
---|
669 | #endif
|
---|
670 | }
|
---|
671 |
|
---|
672 | return 0;
|
---|
673 | }
|
---|
674 |
|
---|
675 | #ifdef __cplusplus
|
---|
676 | }
|
---|
677 | #endif
|
---|