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) 2004 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: ... |
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13 | co-programmer: ... |
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14 | */ |
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15 | |
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16 | #define DEBUG_SPECIAL_MODULE DEBUG_MODULE_PARTICLE |
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17 | |
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18 | #include "particle_engine.h" |
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19 | |
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20 | #include "particle_system.h" |
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21 | #include "particle_emitter.h" |
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22 | |
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23 | #include "list.h" |
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24 | |
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25 | using namespace std; |
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26 | |
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27 | /** |
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28 | \brief standard constructor |
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29 | */ |
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30 | ParticleEngine::ParticleEngine () |
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31 | { |
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32 | this->setClassName ("ParticleEngine"); |
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33 | |
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34 | this->systemList = new tList<ParticleSystem>; |
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35 | this->emitterList = new tList<ParticleEmitter>; |
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36 | this->connectionList = new tList<ParticleConnection>; |
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37 | } |
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38 | |
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39 | /** |
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40 | \brief the singleton reference to this class |
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41 | */ |
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42 | ParticleEngine* ParticleEngine::singletonRef = NULL; |
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43 | |
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44 | /** |
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45 | \returns a Pointer to this Class |
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46 | */ |
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47 | ParticleEngine* ParticleEngine::getInstance(void) |
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48 | { |
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49 | if (!ParticleEngine::singletonRef) |
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50 | ParticleEngine::singletonRef = new ParticleEngine(); |
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51 | return ParticleEngine::singletonRef; |
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52 | } |
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53 | |
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54 | /** |
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55 | \brief standard destructor |
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56 | |
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57 | */ |
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58 | ParticleEngine::~ParticleEngine () |
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59 | { |
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60 | delete this->systemList; |
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61 | |
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62 | delete this->connectionList; |
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63 | |
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64 | ParticleEngine::singletonRef = NULL; |
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65 | } |
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66 | |
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67 | void ParticleEngine::addSystem(ParticleSystem* system) |
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68 | { |
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69 | this->systemList->add(system); |
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70 | } |
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71 | |
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72 | void ParticleEngine::addEmitter(ParticleEmitter* emitter) |
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73 | { |
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74 | this->emitterList->add(emitter); |
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75 | } |
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76 | |
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77 | /** |
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78 | \brief |
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79 | |
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80 | \todo header, check for double connections |
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81 | */ |
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82 | void ParticleEngine::addConnection(ParticleEmitter* emitter, ParticleSystem* system) |
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83 | { |
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84 | // look, if we have already added this connection |
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85 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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86 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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87 | while(tmpConnection) |
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88 | { |
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89 | if (tmpConnection->emitter == emitter && tmpConnection->system == system) |
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90 | { |
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91 | PRINTF(2)("Connection between Emitter and System already added\n"); |
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92 | delete tmpConIt; |
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93 | return; |
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94 | } |
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95 | |
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96 | tmpConnection = tmpConIt->nextElement(); |
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97 | } |
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98 | delete tmpConIt; |
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99 | |
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100 | |
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101 | |
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102 | ParticleConnection* tmpCon = new ParticleConnection; |
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103 | tmpCon->emitter = emitter; |
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104 | tmpCon->system = system; |
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105 | |
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106 | this->connectionList->add(tmpCon); |
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107 | } |
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108 | |
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109 | |
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110 | bool ParticleEngine::removeSystem(ParticleSystem* system) |
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111 | { |
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112 | // remove any connections, that have this system within |
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113 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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114 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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115 | while(tmpConnection) |
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116 | { |
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117 | if (tmpConnection->system == system) |
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118 | this->breakConnection(tmpConnection); |
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119 | tmpConnection = tmpConIt->nextElement(); |
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120 | } |
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121 | delete tmpConIt; |
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122 | |
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123 | // remove the System from the systemList. |
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124 | this->systemList->remove(system); |
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125 | } |
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126 | |
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127 | bool ParticleEngine::removeEmitter(ParticleEmitter* emitter) |
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128 | { |
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129 | // remove any connections, that have this emitter within |
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130 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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131 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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132 | while(tmpConnection) |
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133 | { |
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134 | if (tmpConnection->emitter == emitter) |
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135 | this->breakConnection(tmpConnection); |
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136 | tmpConnection = tmpConIt->nextElement(); |
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137 | } |
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138 | delete tmpConIt; |
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139 | |
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140 | // remove the emitter from the emitterList |
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141 | this->emitterList->remove(emitter); |
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142 | } |
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143 | |
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144 | |
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145 | bool ParticleEngine::breakConnection(ParticleEmitter* emitter, ParticleSystem* system) |
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146 | { |
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147 | // look, if we have already added this connection |
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148 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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149 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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150 | while(tmpConnection) |
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151 | { |
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152 | if (tmpConnection->emitter == emitter && tmpConnection->system == system) |
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153 | this->breakConnection(tmpConnection); |
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154 | tmpConnection = tmpConIt->nextElement(); |
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155 | } |
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156 | delete tmpConIt; |
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157 | } |
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158 | |
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159 | bool ParticleEngine::breakConnection(ParticleConnection* connection) |
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160 | { |
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161 | this->connectionList->remove(connection); |
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162 | } |
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163 | |
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164 | |
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165 | /** |
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166 | \brief this function ticks all the ParticleSystems, so an animation will flow |
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167 | \param dt passed since last tick |
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168 | */ |
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169 | void ParticleEngine::tick(float dt) |
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170 | { |
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171 | // add new Particles to each System they are connected to. |
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172 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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173 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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174 | while(tmpConnection) |
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175 | { |
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176 | tmpConnection->emitter->tick(dt, tmpConnection->system); |
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177 | tmpConnection = tmpConIt->nextElement(); |
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178 | } |
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179 | delete tmpConIt; |
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180 | |
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181 | |
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182 | // ticks all the ParticleSystems |
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183 | tIterator<ParticleSystem>* tmpIt = systemList->getIterator(); |
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184 | ParticleSystem* tmpSys = tmpIt->nextElement(); |
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185 | while(tmpSys) |
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186 | { |
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187 | tmpSys->tick(dt); |
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188 | tmpSys = tmpIt->nextElement(); |
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189 | } |
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190 | delete tmpIt; |
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191 | } |
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192 | |
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193 | |
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194 | void ParticleEngine::draw(void) |
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195 | { |
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196 | tIterator<ParticleSystem>* tmpIt = systemList->getIterator(); |
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197 | ParticleSystem* tmpSys = tmpIt->nextElement(); |
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198 | while(tmpSys) |
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199 | { |
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200 | tmpSys->draw(); |
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201 | tmpSys = tmpIt->nextElement(); |
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202 | } |
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203 | delete tmpIt; |
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204 | |
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205 | } |
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