[3655] | 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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[3938] | 16 | #define DEBUG_SPECIAL_MODULE DEBUG_MODULE_PARTICLE |
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[3655] | 17 | |
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[3924] | 18 | #include "particle_engine.h" |
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[3655] | 19 | |
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[3931] | 20 | #include "particle_system.h" |
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| 21 | #include "particle_emitter.h" |
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| 22 | |
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[3930] | 23 | #include "list.h" |
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[4381] | 24 | #include "debug.h" |
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| 25 | #include "stdlibincl.h" |
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[3930] | 26 | |
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[3655] | 27 | using namespace std; |
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| 28 | |
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| 29 | /** |
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| 30 | \brief standard constructor |
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| 31 | */ |
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[3923] | 32 | ParticleEngine::ParticleEngine () |
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[3655] | 33 | { |
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[4320] | 34 | this->setClassID(CL_PARTICLE_ENGINE, "ParticleEngine"); |
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[3655] | 35 | |
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[3931] | 36 | this->systemList = new tList<ParticleSystem>; |
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[3935] | 37 | this->emitterList = new tList<ParticleEmitter>; |
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[3932] | 38 | this->connectionList = new tList<ParticleConnection>; |
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[3655] | 39 | } |
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| 40 | |
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| 41 | /** |
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| 42 | \brief the singleton reference to this class |
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| 43 | */ |
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[3923] | 44 | ParticleEngine* ParticleEngine::singletonRef = NULL; |
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[3655] | 45 | |
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| 46 | /** |
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[3945] | 47 | \brief deletes all the system, emitters, connections and Lists |
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[3655] | 48 | */ |
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[3923] | 49 | ParticleEngine::~ParticleEngine () |
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[3655] | 50 | { |
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[3945] | 51 | // delete all remaining systems |
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| 52 | tIterator<ParticleSystem>* sysIt = this->systemList->getIterator(); |
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| 53 | ParticleSystem* tmpSys = sysIt->nextElement(); |
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| 54 | while(tmpSys) |
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| 55 | { |
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| 56 | delete tmpSys; |
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| 57 | tmpSys = sysIt->nextElement(); |
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| 58 | } |
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| 59 | delete sysIt; |
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[3931] | 60 | delete this->systemList; |
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[3930] | 61 | |
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[3945] | 62 | // delete all remaining emitters |
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| 63 | tIterator<ParticleEmitter>* emitIt = this->emitterList->getIterator(); |
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| 64 | ParticleEmitter* tmpEmit = emitIt->nextElement(); |
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| 65 | while(tmpEmit) |
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| 66 | { |
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| 67 | delete tmpEmit; |
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| 68 | tmpEmit = emitIt->nextElement(); |
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| 69 | } |
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| 70 | delete emitIt; |
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| 71 | delete this->emitterList; |
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[3930] | 72 | |
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[3945] | 73 | // there should be no more Connections |
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| 74 | if (this->connectionList->getSize() == 0) |
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| 75 | delete this->connectionList; |
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| 76 | else |
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| 77 | PRINTF(2)("The Connection List is not empty. This should not happen.\n"); |
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| 78 | |
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[3923] | 79 | ParticleEngine::singletonRef = NULL; |
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[3655] | 80 | } |
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[3931] | 81 | |
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[3945] | 82 | /** |
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| 83 | \brief Adds a System to the System list. |
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| 84 | |
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| 85 | this is done automatically when creating a ParticleSystem |
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| 86 | */ |
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[3932] | 87 | void ParticleEngine::addSystem(ParticleSystem* system) |
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| 88 | { |
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| 89 | this->systemList->add(system); |
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| 90 | } |
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| 91 | |
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[3945] | 92 | /** |
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| 93 | \brief Adds an emitter to the emitterList |
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| 94 | |
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| 95 | this is done automatically when creating a ParticleEmitter |
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| 96 | */ |
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[3935] | 97 | void ParticleEngine::addEmitter(ParticleEmitter* emitter) |
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| 98 | { |
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| 99 | this->emitterList->add(emitter); |
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| 100 | } |
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[3932] | 101 | |
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[3931] | 102 | /** |
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[3945] | 103 | \brief Connects a ParticleSystem to a ParticleSystem thus emitting Particles. |
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| 104 | \param emitter the Emitter to connect to the System |
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| 105 | \param system the System to connect to the Emitter |
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[3932] | 106 | */ |
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| 107 | void ParticleEngine::addConnection(ParticleEmitter* emitter, ParticleSystem* system) |
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| 108 | { |
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[3937] | 109 | // look, if we have already added this connection |
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| 110 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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| 111 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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| 112 | while(tmpConnection) |
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| 113 | { |
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| 114 | if (tmpConnection->emitter == emitter && tmpConnection->system == system) |
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| 115 | { |
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| 116 | PRINTF(2)("Connection between Emitter and System already added\n"); |
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| 117 | delete tmpConIt; |
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| 118 | return; |
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| 119 | } |
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| 120 | |
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| 121 | tmpConnection = tmpConIt->nextElement(); |
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| 122 | } |
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| 123 | delete tmpConIt; |
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| 124 | |
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| 125 | |
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| 126 | |
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[3932] | 127 | ParticleConnection* tmpCon = new ParticleConnection; |
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| 128 | tmpCon->emitter = emitter; |
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| 129 | tmpCon->system = system; |
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| 130 | |
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| 131 | this->connectionList->add(tmpCon); |
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| 132 | } |
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| 133 | |
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[3945] | 134 | /** |
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| 135 | \brief Removes a system from the systemList and also removes all Connections to the System |
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| 136 | \param system The ParticleSystem to delete |
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| 137 | */ |
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[3935] | 138 | bool ParticleEngine::removeSystem(ParticleSystem* system) |
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| 139 | { |
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[3943] | 140 | // remove any connections, that have this system within |
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| 141 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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| 142 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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| 143 | while(tmpConnection) |
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| 144 | { |
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| 145 | if (tmpConnection->system == system) |
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| 146 | this->breakConnection(tmpConnection); |
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| 147 | tmpConnection = tmpConIt->nextElement(); |
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| 148 | } |
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| 149 | delete tmpConIt; |
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| 150 | |
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| 151 | // remove the System from the systemList. |
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[3935] | 152 | this->systemList->remove(system); |
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| 153 | } |
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| 154 | |
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[3945] | 155 | /** |
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| 156 | \brief removes an emitter from the emitterList and also from all Connections it is attached to. |
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| 157 | \param emitter the ParticleEmitter to remove. |
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| 158 | */ |
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[3935] | 159 | bool ParticleEngine::removeEmitter(ParticleEmitter* emitter) |
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| 160 | { |
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[3943] | 161 | // remove any connections, that have this emitter within |
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| 162 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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| 163 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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| 164 | while(tmpConnection) |
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| 165 | { |
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| 166 | if (tmpConnection->emitter == emitter) |
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| 167 | this->breakConnection(tmpConnection); |
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| 168 | tmpConnection = tmpConIt->nextElement(); |
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| 169 | } |
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| 170 | delete tmpConIt; |
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| 171 | |
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| 172 | // remove the emitter from the emitterList |
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[3935] | 173 | this->emitterList->remove(emitter); |
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| 174 | } |
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| 175 | |
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[3945] | 176 | /** |
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| 177 | \brief removes a Connection between an Emitter and a System |
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| 178 | \param emitter The emitter of the connection to remove |
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| 179 | \param system The system of the connection to remove |
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| 180 | \returns true, if the connection was broken, false if the conntection was not found |
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[3935] | 181 | |
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[3945] | 182 | only if both system and emitter are in the connection the Connection will be broken |
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| 183 | */ |
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[3943] | 184 | bool ParticleEngine::breakConnection(ParticleEmitter* emitter, ParticleSystem* system) |
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| 185 | { |
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| 186 | // look, if we have already added this connection |
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| 187 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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| 188 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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| 189 | while(tmpConnection) |
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| 190 | { |
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[3945] | 191 | if (tmpConnection->emitter == emitter && tmpConnection->system == system) |
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| 192 | { |
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[3943] | 193 | this->breakConnection(tmpConnection); |
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[3945] | 194 | delete tmpConIt; |
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| 195 | return true; |
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| 196 | } |
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| 197 | tmpConnection = tmpConIt->nextElement(); |
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[3943] | 198 | } |
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[3945] | 199 | delete tmpConIt; |
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| 200 | return false; |
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[3943] | 201 | } |
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| 202 | |
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[3945] | 203 | /** |
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| 204 | \brief removes a Connection between an Emitter and a System |
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| 205 | \param connection the connection to remove |
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| 206 | |
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| 207 | \see bool ParticleEngine::breakConnection(ParticleEmitter* emitter, ParticleSystem* system) |
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| 208 | */ |
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[3943] | 209 | bool ParticleEngine::breakConnection(ParticleConnection* connection) |
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| 210 | { |
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| 211 | this->connectionList->remove(connection); |
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[3945] | 212 | return true; |
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[3943] | 213 | } |
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| 214 | |
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| 215 | |
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[3932] | 216 | /** |
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[3931] | 217 | \brief this function ticks all the ParticleSystems, so an animation will flow |
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| 218 | \param dt passed since last tick |
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| 219 | */ |
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| 220 | void ParticleEngine::tick(float dt) |
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| 221 | { |
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[4176] | 222 | // ticks all the ParticleSystems |
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| 223 | tIterator<ParticleSystem>* tmpIt = systemList->getIterator(); |
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| 224 | ParticleSystem* tmpSys = tmpIt->nextElement(); |
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| 225 | while(tmpSys) |
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| 226 | { |
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| 227 | tmpSys->tick(dt); |
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| 228 | tmpSys = tmpIt->nextElement(); |
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| 229 | } |
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| 230 | delete tmpIt; |
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| 231 | |
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[3945] | 232 | // add new Particles to each System connected to an Emitter. |
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[3932] | 233 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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| 234 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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| 235 | while(tmpConnection) |
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| 236 | { |
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| 237 | tmpConnection->emitter->tick(dt, tmpConnection->system); |
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| 238 | tmpConnection = tmpConIt->nextElement(); |
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| 239 | } |
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| 240 | delete tmpConIt; |
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[3931] | 241 | } |
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[3932] | 242 | |
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[3945] | 243 | /** |
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| 244 | \brief draws all the systems and their Particles. |
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| 245 | */ |
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[4349] | 246 | void ParticleEngine::draw() const |
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[3932] | 247 | { |
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| 248 | tIterator<ParticleSystem>* tmpIt = systemList->getIterator(); |
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| 249 | ParticleSystem* tmpSys = tmpIt->nextElement(); |
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| 250 | while(tmpSys) |
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| 251 | { |
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[4349] | 252 | tmpSys->draw(); |
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[3932] | 253 | tmpSys = tmpIt->nextElement(); |
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| 254 | } |
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| 255 | delete tmpIt; |
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| 256 | |
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| 257 | } |
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[3944] | 258 | |
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| 259 | /** |
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[4338] | 260 | \param systemName the name of the system to search for |
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| 261 | \returns the system called by systemName or NULL if not found |
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| 262 | */ |
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| 263 | ParticleSystem* ParticleEngine::getSystemByName(const char* systemName) const |
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| 264 | { |
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| 265 | tIterator<ParticleSystem>* tmpIt = systemList->getIterator(); |
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| 266 | ParticleSystem* tmpSys = tmpIt->nextElement(); |
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| 267 | while(tmpSys) |
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| 268 | { |
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| 269 | if (!strcmp(systemName, tmpSys->getName())) |
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| 270 | { |
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| 271 | delete tmpIt; |
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| 272 | return tmpSys; |
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| 273 | } |
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| 274 | tmpSys = tmpIt->nextElement(); |
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| 275 | } |
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| 276 | delete tmpIt; |
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| 277 | return NULL; |
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| 278 | } |
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| 279 | |
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| 280 | /** |
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| 281 | \param number the n-th system to return |
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| 282 | \returns the system called by number or NULL if not found |
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| 283 | */ |
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| 284 | ParticleSystem* ParticleEngine::getSystemByNumber(unsigned int number) const |
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| 285 | { |
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| 286 | int count = 0; |
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| 287 | tIterator<ParticleSystem>* tmpIt = systemList->getIterator(); |
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| 288 | ParticleSystem* tmpSys = tmpIt->nextElement(); |
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| 289 | while(tmpSys) |
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| 290 | { |
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| 291 | count++; |
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| 292 | if ( count == number) |
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| 293 | { |
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| 294 | delete tmpIt; |
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| 295 | return tmpSys; |
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| 296 | } |
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| 297 | tmpSys = tmpIt->nextElement(); |
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| 298 | } |
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| 299 | delete tmpIt; |
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| 300 | return NULL; |
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| 301 | } |
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| 302 | |
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| 303 | /** |
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| 304 | \param emitterName the name of the emitter to search for |
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| 305 | \returns the emitter called by emitterName or NULL if not found |
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| 306 | */ |
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| 307 | ParticleEmitter* ParticleEngine::getEmitterByName(const char* emitterName) const |
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| 308 | { |
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| 309 | tIterator<ParticleEmitter>* tmpIt = emitterList->getIterator(); |
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| 310 | ParticleEmitter* tmpEmit = tmpIt->nextElement(); |
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| 311 | while(tmpEmit) |
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| 312 | { |
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| 313 | if (!strcmp(emitterName, tmpEmit->getName())) |
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| 314 | { |
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| 315 | delete tmpIt; |
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| 316 | return tmpEmit; |
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| 317 | } |
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| 318 | tmpEmit = tmpIt->nextElement(); |
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| 319 | } |
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| 320 | delete tmpIt; |
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| 321 | return NULL; |
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| 322 | } |
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| 323 | |
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| 324 | |
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| 325 | /** |
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| 326 | \param number the n-th emitter to return |
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| 327 | \returns the emitter called by number or NULL if not found |
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| 328 | */ |
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| 329 | ParticleEmitter* ParticleEngine::getEmitterByNumber(unsigned int number) const |
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| 330 | { |
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| 331 | int count = 0; |
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| 332 | tIterator<ParticleEmitter>* tmpIt = emitterList->getIterator(); |
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| 333 | ParticleEmitter* tmpEmit = tmpIt->nextElement(); |
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| 334 | while(tmpEmit) |
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| 335 | { |
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| 336 | count++; |
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| 337 | if ( count == number) |
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| 338 | { |
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| 339 | delete tmpIt; |
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| 340 | return tmpEmit; |
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| 341 | } |
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| 342 | tmpEmit = tmpIt->nextElement(); |
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| 343 | } |
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| 344 | delete tmpIt; |
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| 345 | return NULL; |
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| 346 | } |
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| 347 | |
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| 348 | /** |
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[3944] | 349 | \brief outputs some nice debug information |
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| 350 | */ |
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| 351 | void ParticleEngine::debug(void) |
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| 352 | { |
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| 353 | PRINT(0)("+-----------------------------------+\n"); |
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| 354 | PRINT(0)("+ PARTICLE-ENGINE DEBUG INFORMATION +\n"); |
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| 355 | PRINT(0)("+-----------------------------------+\n"); |
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| 356 | PRINT(0)(" Reference: %p\n", ParticleEngine::singletonRef); |
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| 357 | PRINT(0)(" Count: Emitters: %d; Systems: %d, Connections: %d\n", |
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| 358 | this->emitterList->getSize(), this->systemList->getSize(), this->connectionList->getSize()); |
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| 359 | if (this->connectionList->getSize() > 0) |
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| 360 | { |
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| 361 | PRINT(0)(" Connections:\n"); |
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| 362 | PRINT(0)(" -----------------------------------\n"); |
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| 363 | |
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| 364 | tIterator<ParticleConnection>* tmpConIt = connectionList->getIterator(); |
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| 365 | ParticleConnection* tmpConnection = tmpConIt->nextElement(); |
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| 366 | while(tmpConnection) |
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| 367 | { |
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| 368 | PRINT(0)(" Emitter '%s' emitts into System '%s'\n", tmpConnection->emitter->getName(), tmpConnection->system->getName()); |
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| 369 | tmpConnection = tmpConIt->nextElement(); |
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| 370 | } |
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| 371 | delete tmpConIt; |
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| 372 | } |
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| 373 | if (this->systemList->getSize() > 0) |
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| 374 | { |
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| 375 | tIterator<ParticleSystem>* tmpIt = systemList->getIterator(); |
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| 376 | ParticleSystem* tmpSys = tmpIt->nextElement(); |
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| 377 | while(tmpSys) |
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| 378 | { |
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| 379 | tmpSys->debug(); |
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| 380 | tmpSys = tmpIt->nextElement(); |
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| 381 | } |
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| 382 | delete tmpIt; |
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| 383 | } |
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| 384 | |
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| 385 | PRINT(0)("+--------------------------------PE-+\n"); |
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| 386 | |
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| 387 | } |
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