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 | |
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13 | This is anohter installment of the infamous track system. It serves for |
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14 | temporary use only and is mainly a slimmed version of the old track. |
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15 | |
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16 | The track is used to steer the spaceship. In this case the track will have |
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17 | to control a PNode. The spaceship will be able to fly around this node. |
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18 | The camera will always be focused on that point. |
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19 | |
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20 | As we do this we have exactly the verticalscroller feeling we want. |
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21 | |
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22 | main-programmer: Benjamin Knecht |
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23 | */ |
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24 | |
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25 | #include "util/loading/load_param.h" |
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26 | #include "track/track.h" |
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27 | #include "glincl.h" |
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28 | #include "p_node.h" |
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29 | |
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30 | #include "debug.h" |
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31 | |
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32 | ObjectListDefinition(Track); |
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33 | // CREATE_FACTORY(Track); |
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34 | |
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35 | |
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36 | /** |
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37 | * standard constructor |
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38 | */ |
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39 | Track::Track() |
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40 | { |
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41 | this->init(); |
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42 | } |
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43 | |
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44 | |
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45 | /** |
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46 | * this is a constructor for use with the xml loading file |
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47 | * @param root xml root element for this object |
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48 | */ |
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49 | Track::Track(const TiXmlElement* root) |
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50 | { |
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51 | this->init(); |
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52 | |
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53 | if (root != NULL) |
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54 | this->loadParams(root); |
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55 | } |
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56 | |
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57 | |
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58 | /** |
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59 | * initializes this class |
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60 | */ |
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61 | void Track::init() |
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62 | { |
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63 | this->curveType = CURVE_BEZIER; |
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64 | // this->startingTime = 0; |
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65 | this->duration = 20; |
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66 | this->endTime = 20; |
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67 | this->width = 24; |
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68 | this->height = 18; |
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69 | this->depth = 200; |
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70 | this->stretch = 4; |
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71 | this->curve = new BezierCurve(); |
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72 | this->trackNode = new PNode(PNode::getNullParent(), PNODE_ALL); |
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73 | this->nodeCount = 0; |
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74 | this->localTime = 0; |
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75 | this->pause = false; |
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76 | } |
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77 | |
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78 | /** |
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79 | * standard destructor |
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80 | */ |
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81 | Track::~Track() |
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82 | { |
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83 | |
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84 | } |
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85 | |
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86 | |
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87 | void Track::loadParams(const TiXmlElement* root) |
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88 | { |
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89 | LOAD_PARAM_START_CYCLE(root, element); |
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90 | { |
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91 | LoadParam_CYCLE(element, "addPoint", this, Track, addPoint) |
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92 | .describe("Adds a new Point to the currently selected TrackElement"); |
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93 | LoadParam_CYCLE(element, "speed", this, Track, setSpeed) |
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94 | .describe("Sets speed of traveling"); |
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95 | LoadParam_CYCLE(element, "mode", this, Track, setMode) |
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96 | .describe("Sets mode of track behavior"); |
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97 | } |
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98 | LOAD_PARAM_END_CYCLE(element); |
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99 | } |
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100 | |
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101 | |
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102 | |
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103 | /** |
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104 | * This function adds a point with its coordinates to the track |
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105 | * @param x |
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106 | * @param y |
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107 | * @param z |
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108 | */ |
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109 | void Track::addPoint(float x, float y, float z) |
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110 | { |
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111 | this->addPointV(Vector (x,y,z)); |
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112 | } |
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113 | |
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114 | |
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115 | /** |
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116 | * This function adds a point to the track as a vector |
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117 | * @param newPoint |
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118 | */ |
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119 | void Track::addPointV(Vector newPoint) |
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120 | { |
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121 | this->curve->addNode(newPoint); |
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122 | if( this->nodeCount == 0) this->trackNode->setAbsCoor(newPoint); |
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123 | this->nodeCount++; |
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124 | // PRINTF(0)("Point added to curve\n"); |
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125 | } |
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126 | |
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127 | /** |
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128 | * This function sets the speed of the trackNode by altering the duration |
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129 | * of the time the trackNode travels on the whole track. This is bad because |
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130 | * the speed depends on the length of the curve. (by getting the curve's length |
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131 | * this function will make a lot more sense) |
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132 | */ |
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133 | void Track::setSpeed(float speed) |
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134 | { |
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135 | this->duration = this->duration/speed; |
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136 | this->speed = speed; |
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137 | } |
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138 | |
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139 | /** |
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140 | * Sets the mode of the track. 0 means wait at the end. 1 means rerun track |
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141 | */ |
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142 | void Track::setMode(int newMode) |
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143 | { |
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144 | this->mode = newMode; |
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145 | } |
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146 | |
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147 | /** |
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148 | * Sets the bool if the track runs (false) or not (true) |
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149 | */ |
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150 | void Track::pauseTrack(bool stop) |
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151 | { |
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152 | this->pause = stop; |
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153 | } |
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154 | |
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155 | |
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156 | /** |
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157 | * We probably doesn't even need this |
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158 | */ |
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159 | //void Track::finalize() |
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160 | //{ |
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161 | // for (int i = 1; i<= trackElemCount ;i++) |
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162 | // { |
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163 | // TrackElement* tmpElem = this->firstTrackElem->findByID(i); |
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164 | // if( tmpElem->childCount > 0) |
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165 | // { |
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166 | // tIterator<TrackElement>* iterator = tmpElem->children->getIterator(); |
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167 | // TrackElement* enumElem = iterator->firstElement(); |
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168 | // //TrackElement* enumElem = tmpElem->children->enumerate(); |
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169 | // while (enumElem) |
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170 | // { |
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171 | // |
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172 | // // c1-continuity |
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173 | // enumElem->curve->addNode(enumElem->curve->getNode(0) + |
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174 | // ((enumElem->curve->getNode(0) - |
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175 | // tmpElem->curve->getNode(tmpElem->curve->getNodeCount()-1)) |
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176 | // ),2); |
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177 | // enumElem->nodeCount++; |
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178 | // // c2-continuity |
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179 | // enumElem->curve->addNode((tmpElem->curve->getNode(tmpElem->curve->getNodeCount())- |
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180 | // tmpElem->curve->getNode(tmpElem->curve->getNodeCount()-1)) * 4 + |
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181 | // tmpElem->curve->getNode(tmpElem->curve->getNodeCount()-2), 3); |
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182 | // enumElem->nodeCount++; |
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183 | // PRINTF(5)("accelerations: %d-in: count: %d, %f, %f, %f\n %d-out: count: %d %f, %f, %f\n", |
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184 | // tmpElem->ID, tmpElem->nodeCount, |
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185 | // tmpElem->curve->calcAcc(0.999).x, tmpElem->curve->calcAcc(0.999).y, tmpElem->curve->calcAcc(0.999).z, |
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186 | // enumElem->ID, enumElem->nodeCount, |
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187 | // enumElem->curve->calcAcc(0).x, enumElem->curve->calcAcc(0).y, enumElem->curve->calcAcc(0).z); |
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188 | // |
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189 | // enumElem = iterator->nextElement(); |
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190 | // } |
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191 | // delete iterator; |
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192 | // } |
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193 | // } |
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194 | |
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195 | |
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196 | |
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197 | /*for (int i = 1; i <= trackElemCount;i++) |
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198 | if (this->firstTrackElem->findByID(i)->endTime > this->maxTime) |
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199 | this->maxTime = this->firstTrackElem->findByID(i)->endTime; // very bad implemented :/ |
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200 | */ |
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201 | //} |
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202 | |
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203 | Vector Track::calcPos() const |
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204 | { |
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205 | return this->curve->calcPos(this->localTime/this->duration); |
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206 | } |
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207 | |
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208 | Vector Track::calcDir() const |
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209 | { |
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210 | return this->curve->calcDir(this->localTime/this->duration); |
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211 | } |
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212 | |
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213 | void Track::tick(float dt) |
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214 | { |
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215 | // PRINTF(4)("CurrentTrackID: %d, LocalTime is: %f, timestep is: %f\n", this->currentTrackElem->ID, this->localTime, dt); |
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216 | // if (this->localTime <= this->firstTrackElem->duration) |
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217 | // this->jumpTo(this->localTime); |
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218 | // if (this->localTime <= this->maxTime) |
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219 | |
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220 | |
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221 | // if (this->localTime > this->currentTrackElem->endTime |
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222 | // && this->currentTrackElem->children) |
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223 | // { |
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224 | // if (this->currentTrackElem->jumpTime != 0.0) |
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225 | // this->jumpTo(this->localTime + this->currentTrackElem->jumpTime); |
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226 | // // jump to the next TrackElement and also set the history of the new Element to the old one. |
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227 | // TrackElement* tmpHistoryElem = this->currentTrackElem; |
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228 | // this->currentTrackElem = this->currentTrackElem->getChild(this->choosePath(this->currentTrackElem)); |
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229 | // this->currentTrackElem->history = tmpHistoryElem; |
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230 | // if (this->currentTrackElem->getName()) |
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231 | // { |
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232 | // this->trackText->setText(this->currentTrackElem->getName()); |
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233 | // this->textAnimation->replay(); |
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234 | // } |
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235 | // } |
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236 | if (this->trackNode && !this->pause) |
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237 | { |
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238 | // tmp save |
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239 | float oldTime = this->localTime; |
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240 | |
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241 | if(this->mode == 0) |
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242 | { |
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243 | // PRINTF(0)("localTime %f and duration %f", this->localTime, this->duration); |
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244 | if(this->localTime + dt < this->duration) |
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245 | this->localTime += dt; |
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246 | } |
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247 | else |
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248 | { |
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249 | this->localTime += dt; |
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250 | if(this->localTime >= this->duration) |
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251 | this->localTime = 0; |
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252 | } |
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253 | |
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254 | if(oldTime != this->localTime) |
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255 | { |
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256 | Vector tmp = this->calcPos(); |
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257 | |
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258 | |
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259 | Vector dV = tmp - this->trackNode->getAbsCoor(); |
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260 | float dx = speed * dt; |
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261 | float ratio = dx / dV.len(); |
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262 | |
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263 | if( dt > 0.0f) |
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264 | { |
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265 | float newDt = dt * ratio; |
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266 | this->localTime = oldTime + newDt; |
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267 | } |
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268 | tmp = this->calcPos(); |
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269 | |
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270 | Vector v(0.0, 1.0, 0.0); |
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271 | Quaternion quat = Quaternion(this->calcDir(), v); |
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272 | Quaternion q(-PI/2, v); |
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273 | quat = quat * q; |
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274 | |
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275 | // move trackNode of the track |
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276 | this->trackNode->shiftCoor(tmp - this->trackNode->getAbsCoor()); |
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277 | // set direction and roll angle of trackNode |
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278 | this->trackNode->setAbsDir(quat); |
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279 | } |
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280 | } |
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281 | } |
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282 | |
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283 | /** |
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284 | * @returns the main TrackNode |
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285 | */ |
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286 | PNode* Track::getTrackNode() |
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287 | { |
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288 | return this->trackNode; |
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289 | } |
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290 | |
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291 | /** |
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292 | * Imports a model of the Graph into the OpenGL-environment. |
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293 | * @param dt The Iterator used in seconds for Painting the Graph. |
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294 | |
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295 | This is for testing facility only. Do this if you want to see the Path inside the Level. |
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296 | eventually this will all be packed into a gl-list. |
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297 | */ |
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298 | void Track::drawGraph(float dt) const |
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299 | { |
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300 | glMatrixMode(GL_MODELVIEW); |
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301 | glPushMatrix(); |
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302 | |
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303 | glPushAttrib(GL_ENABLE_BIT); |
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304 | |
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305 | glDisable(GL_LIGHTING); |
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306 | glDisable(GL_TEXTURE_2D); |
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307 | glDisable(GL_BLEND); |
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308 | glLineWidth(2.0); |
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309 | |
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310 | |
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311 | |
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312 | PNode* node = PNode::getNullParent(); |
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313 | glTranslatef (node->getAbsCoor ().x, |
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314 | node->getAbsCoor ().y, |
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315 | node->getAbsCoor ().z); |
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316 | Vector tmpRot = node->getAbsDir().getSpacialAxis(); |
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317 | glRotatef (node->getAbsDir().getSpacialAxisAngle(), tmpRot.x, tmpRot.y, tmpRot.z ); |
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318 | |
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319 | |
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320 | glBegin(GL_LINE_STRIP); |
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321 | glColor3f(1.0, 1.0, 0.6); |
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322 | |
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323 | Vector tmpVector; |
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324 | for(float f = 0.0; f < 1.0; f+=dt) |
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325 | { |
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326 | //PRINTF(0)("drawing",this->calcPos().x, this->calcPos().y, this->calcPos().z); |
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327 | tmpVector = this->curve->calcPos(f); |
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328 | glVertex3f(tmpVector.x, tmpVector.y, tmpVector.z); |
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329 | } |
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330 | glEnd(); |
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331 | |
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332 | glPopAttrib(); |
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333 | |
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334 | glPopMatrix(); |
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335 | } |
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336 | |
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337 | void Track::drawBox() const |
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338 | { |
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339 | glMatrixMode(GL_MODELVIEW); |
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340 | glPushMatrix(); |
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341 | |
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342 | glPushAttrib(GL_ENABLE_BIT); |
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343 | |
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344 | glDisable(GL_LIGHTING); |
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345 | glDisable(GL_TEXTURE_2D); |
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346 | glDisable(GL_BLEND); |
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347 | glLineWidth(2.0); |
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348 | |
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349 | glTranslatef (trackNode->getAbsCoor ().x, |
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350 | trackNode->getAbsCoor ().y, |
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351 | trackNode->getAbsCoor ().z); |
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352 | Vector tmpRot = trackNode->getAbsDir().getSpacialAxis(); |
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353 | glRotatef (trackNode->getAbsDir().getSpacialAxisAngle(), tmpRot.x, tmpRot.y, tmpRot.z ); |
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354 | |
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355 | |
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356 | glColor3f(1.0, 1.0, 0.0); |
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357 | glBegin(GL_LINE_STRIP); |
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358 | glVertex3f(0, height, width); |
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359 | glVertex3f(0, -height, width); |
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360 | glVertex3f(0, -height, -width); |
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361 | glVertex3f(0, height, -width); |
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362 | glVertex3f(0, height, width); |
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363 | glEnd(); |
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364 | |
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365 | glBegin(GL_LINE_STRIP); |
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366 | glVertex3f(depth, height * stretch, width * stretch); |
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367 | glVertex3f(depth, -height * stretch, width * stretch); |
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368 | glVertex3f(depth, -height * stretch, -width * stretch); |
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369 | glVertex3f(depth, height * stretch, -width * stretch); |
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370 | glVertex3f(depth, height * stretch, width * stretch); |
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371 | glEnd(); |
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372 | |
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373 | glBegin(GL_LINE_STRIP); |
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374 | glVertex3f(depth, height * stretch, width * stretch); |
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375 | glVertex3f(0, height, width); |
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376 | glVertex3f(0, -height, width); |
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377 | glVertex3f(depth, -height * stretch, width * stretch); |
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378 | glEnd(); |
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379 | |
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380 | glBegin(GL_LINE_STRIP); |
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381 | glVertex3f(depth, height * stretch, -width * stretch); |
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382 | glVertex3f(0, height, -width); |
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383 | glVertex3f(0, -height, -width); |
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384 | glVertex3f(depth, -height * stretch, -width * stretch); |
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385 | glEnd(); |
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386 | |
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387 | glPopMatrix(); |
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388 | } |
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