1 | /* |
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2 | orxonox - the future of 3D-vertical-scrollers |
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3 | |
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4 | Copyright (C) 2006 orx |
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5 | |
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6 | This program is free software; you can redistribute it and/or modify |
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7 | it under the terms of the GNU General Public License as published by |
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8 | the Free Software Foundation; either version 2, or (at your option) |
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9 | any later version. |
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10 | |
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11 | ### File Specific: |
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12 | main-programmer: David Hasenfratz |
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13 | */ |
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14 | |
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15 | #include "wobblegrid.h" |
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16 | |
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17 | #include "util/loading/load_param.h" |
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18 | #include "util/loading/factory.h" |
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19 | |
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20 | #include "graphics_engine.h" |
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21 | #include "material.h" |
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22 | #include "glincl.h" |
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23 | #include "state.h" |
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24 | #include "grid.h" |
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25 | |
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26 | #include "cameraman.h" |
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27 | |
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28 | #include <assert.h> |
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29 | #include "debug.h" |
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30 | |
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31 | |
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32 | |
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33 | ObjectListDefinition(Wobblegrid); |
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34 | CREATE_FACTORY(Wobblegrid); |
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35 | |
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36 | /** |
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37 | * Wobble Grids are grids which "wobble" |
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38 | * Wobbling is realized through fixed center and sin wave outwards |
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39 | * For the beginning the grid will be a 5x5 |
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40 | */ |
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41 | |
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42 | /** |
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43 | * standart constructor |
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44 | */ |
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45 | Wobblegrid::Wobblegrid (const TiXmlElement* root) |
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46 | { |
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47 | this->size = 5; |
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48 | |
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49 | this->init(); |
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50 | |
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51 | if( root) |
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52 | this->loadParams(root); |
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53 | } |
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54 | |
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55 | Wobblegrid::Wobblegrid (int size, const TiXmlElement* root) |
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56 | { |
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57 | this->size = size; |
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58 | |
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59 | this->init(); |
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60 | |
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61 | if( root) |
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62 | this->loadParams(root); |
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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 | * destroys a Wobblegrid |
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68 | */ |
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69 | Wobblegrid::~Wobblegrid () |
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70 | { |
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71 | if (this->material) |
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72 | delete this->material; |
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73 | } |
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74 | |
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75 | |
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76 | /** |
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77 | * initializes the Wobblegrid |
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78 | */ |
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79 | void Wobblegrid::init() |
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80 | { |
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81 | this->registerObject(this, Wobblegrid::_objectList); |
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82 | this->setName("Wobblegrid"); |
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83 | |
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84 | this->material = new Material(); |
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85 | this->material->setBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
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86 | this->setAbsCoor(0, 0, 0); |
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87 | //this->setVisibiliy(true); |
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88 | |
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89 | this->subdivision = 5; |
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90 | |
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91 | this->grid = new Grid( this->size, this->size, this->subdivision, this->subdivision); |
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92 | this->angularSpeed = M_PI; //180; |
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93 | this->setModel(this->grid); |
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94 | |
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95 | this->setUpdateFunction((*sinf)); |
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96 | } |
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97 | |
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98 | |
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99 | /** |
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100 | * load params |
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101 | * @param root TiXmlElement object |
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102 | */ |
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103 | void Wobblegrid::loadParams(const TiXmlElement* root) |
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104 | { |
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105 | /*LoadParam(root, "texture", this->material, Material, setDiffuseMap) |
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106 | .describe("the texture-file to load onto the Wobblegrid"); |
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107 | |
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108 | LoadParam(root, "size", this, Wobblegrid, setSize) |
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109 | .describe("the size of the Wobblegrid in Pixels");*/ |
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110 | } |
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111 | |
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112 | |
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113 | |
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114 | /** |
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115 | * sets the material to load |
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116 | * @param textureFile The texture-file to load |
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117 | */ |
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118 | void Wobblegrid::setTexture(const std::string& textureFile) |
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119 | { |
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120 | this->material->setBlendFunc(GL_SRC_ALPHA,GL_ONE); |
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121 | this->material->setDiffuseMap(textureFile); |
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122 | } |
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123 | |
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124 | |
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125 | /** |
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126 | * ticks the Wobblegrid |
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127 | * @param dt the time to ticks |
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128 | */ |
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129 | void Wobblegrid::tick(float dt) |
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130 | { |
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131 | angle += dt * angularSpeed; |
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132 | if (angle > 2 * M_PI) |
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133 | angle -= 2 * M_PI; |
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134 | |
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135 | //Vector vec; |
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136 | float fac = 1.0 / (this->subdivision - 1); |
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137 | for( int z=1; z < 4; z++) |
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138 | { |
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139 | for( int x=1; x < 4; x++) |
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140 | { |
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141 | //if(x==2 && z == 2) |
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142 | // continue; |
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143 | |
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144 | Vector2D& vec = this->grid->texCoord(z*this->subdivision + x); |
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145 | vec.y = (x * fac + sgn(x-2)*updateWobble(angle)*fac/2.0); |
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146 | vec.x = (z * fac + sgn(z-2)*updateWobble(angle)*fac/2.0); |
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147 | } |
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148 | } |
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149 | //this->grid->finalize(); |
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150 | this->orient(); |
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151 | } |
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152 | |
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153 | |
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154 | /** |
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155 | * draws the billboard |
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156 | */ |
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157 | void Wobblegrid::draw() const |
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158 | { |
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159 | |
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160 | // this->material->select(); |
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161 | // WorldEntity::draw(); |
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162 | // return; |
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163 | |
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164 | |
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165 | if( !this->isVisible()) |
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166 | return; |
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167 | |
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168 | glPushAttrib(GL_ENABLE_BIT); |
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169 | glDisable(GL_LIGHTING); |
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170 | glDisable(GL_FOG); |
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171 | |
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172 | glMatrixMode(GL_MODELVIEW); |
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173 | glPushMatrix(); |
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174 | |
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175 | //glTranslatef(this->getAbsCoor().x, this->getAbsCoor().y, this->getAbsCoor().z); |
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176 | //glTranslatef(0,0,0); |
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177 | this->material->select(); |
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178 | |
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179 | glDisable(GL_BLEND); |
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180 | glEnable( GL_ALPHA_TEST); |
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181 | glAlphaFunc( GL_GEQUAL, .5); |
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182 | |
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183 | glTranslatef (this->getAbsCoor ().x, |
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184 | this->getAbsCoor ().y, |
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185 | this->getAbsCoor ().z); |
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186 | |
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187 | Vector tmpRot = this->getAbsDir().getSpacialAxis(); |
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188 | glRotatef (this->getAbsDir().getSpacialAxisAngle(), tmpRot.x, tmpRot.y, tmpRot.z ); |
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189 | |
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190 | //Quaternion dir = Quaternion(this->getAbsDir().getSpacialAxisAngle(),view); |
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191 | //this->setAbsDir(dir); |
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192 | //glRotatef(this->angle, 0.0, 0.0, 1.0); |
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193 | this->grid->draw(); |
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194 | |
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195 | glPopMatrix(); |
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196 | |
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197 | glPopAttrib(); |
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198 | } |
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199 | |
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200 | void Wobblegrid::orient() |
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201 | { |
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202 | |
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203 | CameraMan* cman = State::getCameraman(); |
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204 | Camera* c = cman->getCurrentCam(); |
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205 | |
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206 | Vector view = this->getAbsCoor() - c->getAbsCoor(); |
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207 | // view.normalize(); |
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208 | |
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209 | Vector up = Vector(0, 1, 0); |
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210 | // if ( up.dot(view) == 0 ) |
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211 | // up = Vector(1, 0, 0); |
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212 | // if ( up.dot(view) == 0 ) |
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213 | // up = Vector (0, 0, 1); |
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214 | |
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215 | Vector h = up.cross(view.getNormalized()); |
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216 | up = h.cross(view.getNormalized()); |
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217 | Quaternion dir = Quaternion::lookAt( this->getAbsCoor(), this->getAbsCoor() + up, view); |
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218 | // Quaternion dir = Quaternion::lookAt( Vector(), view, up); |
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219 | this->setAbsDir(dir); |
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220 | } |
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