[4597] | 1 | /* |
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[1853] | 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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[1855] | 10 | |
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| 11 | ### File Specific: |
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[3925] | 12 | main-programmer: Benjamin Grauer |
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[1855] | 13 | co-programmer: ... |
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[1853] | 14 | */ |
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| 15 | |
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[3934] | 16 | #define DEBUG_SPECIAL_MODULE DEBUG_MODULE_PARTICLE |
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[1853] | 17 | |
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[3925] | 18 | #include "particle_system.h" |
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[1853] | 19 | |
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[3930] | 20 | #include "particle_emitter.h" |
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| 21 | #include "particle_engine.h" |
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[4338] | 22 | |
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| 23 | #include "field.h" |
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| 24 | |
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[3932] | 25 | #include "compiler.h" |
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[3942] | 26 | #include "material.h" |
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[4338] | 27 | #include "state.h" |
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[3930] | 28 | |
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[4602] | 29 | #include "tinyxml.h" |
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[4338] | 30 | |
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[1856] | 31 | using namespace std; |
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[1853] | 32 | |
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[3245] | 33 | /** |
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| 34 | \brief standard constructor |
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[4478] | 35 | \param maxCount the Count of particles in the System |
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[3930] | 36 | \param type The Type of the ParticleSystem |
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[3245] | 37 | */ |
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[4397] | 38 | ParticleSystem::ParticleSystem (unsigned int maxCount, PARTICLE_TYPE type) : PhysicsInterface(this) |
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[3365] | 39 | { |
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[4602] | 40 | this->init(); |
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[4597] | 41 | |
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[4338] | 42 | this->maxCount = maxCount; |
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| 43 | this->setType(type, 1); |
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[3365] | 44 | } |
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[1853] | 45 | |
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[4602] | 46 | ParticleSystem::ParticleSystem(const TiXmlElement* root) : PhysicsInterface(this) |
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| 47 | { |
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| 48 | this->init(); |
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| 49 | this->loadParams(root); |
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| 50 | } |
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[1853] | 51 | |
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[3245] | 52 | /** |
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| 53 | \brief standard deconstructor |
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| 54 | */ |
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[4176] | 55 | ParticleSystem::~ParticleSystem() |
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[3543] | 56 | { |
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| 57 | // delete what has to be deleted here |
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[3935] | 58 | ParticleEngine::getInstance()->removeSystem(this); |
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[4123] | 59 | |
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| 60 | // deleting all the living Particles |
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| 61 | while (this->particles) |
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| 62 | { |
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| 63 | Particle* tmpDelPart = this->particles; |
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| 64 | this->particles = this->particles->next; |
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| 65 | delete tmpDelPart; |
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| 66 | } |
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| 67 | |
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| 68 | // deleting all the dead particles |
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| 69 | while (this->deadList) |
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| 70 | { |
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| 71 | Particle* tmpDelPart = this->deadList; |
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| 72 | this->deadList = this->deadList->next; |
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| 73 | delete tmpDelPart; |
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| 74 | } |
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[4176] | 75 | |
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| 76 | if (this->material) |
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| 77 | delete this->material; |
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[3543] | 78 | } |
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[1853] | 79 | |
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[3945] | 80 | /** |
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[4602] | 81 | \brief initializes the ParticleSystem with default values |
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| 82 | */ |
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| 83 | void ParticleSystem::init(void) |
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| 84 | { |
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| 85 | this->setClassID(CL_PARTICLE_SYSTEM, "ParticleSystem"); |
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| 86 | |
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| 87 | this->material = NULL; |
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| 88 | this->maxCount = PARTICLE_DEFAULT_MAX_COUNT; |
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| 89 | this->count = 0; |
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| 90 | this->particles = NULL; |
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| 91 | this->deadList = NULL; |
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| 92 | this->setConserve(1); |
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| 93 | this->setLifeSpan(1); |
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| 94 | this->glID = NULL; |
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| 95 | this->setType(PARTICLE_DEFAULT_TYPE, 1); |
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| 96 | ParticleEngine::getInstance()->addSystem(this); |
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| 97 | } |
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| 98 | |
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| 99 | |
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| 100 | /** |
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| 101 | * loads Parameters from a TiXmlElement |
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| 102 | * @param root the XML-element to load from. |
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| 103 | */ |
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| 104 | void ParticleSystem::loadParams(const TiXmlElement* root) |
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| 105 | { |
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| 106 | static_cast<WorldEntity*>(this)->loadParams(root); |
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| 107 | static_cast<PhysicsInterface*>(this)->loadParams(root); |
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| 108 | |
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| 109 | //LoadParam<ParticleSystem>(root, "type", this, &ParticleSystem::setType); |
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| 110 | LoadParam<ParticleSystem>(root, "life-span", this, &ParticleSystem::setLifeSpan); |
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| 111 | LoadParam<ParticleSystem>(root, "conserve", this, &ParticleSystem::setConserve); |
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| 112 | // void setLifeSpan(float lifeSpan, float randomLifeSpan = 0.0); |
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| 113 | // void setConserve(float conserve); |
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| 114 | // |
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| 115 | // /* Per-Particle-Attributes */ |
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| 116 | // void setRadius(float lifeCycleTime, float radius, float randRadius = 0.0); |
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| 117 | // void setMass(float lifeCycleTime, float mass, float randMass = 0.0); |
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| 118 | // void setColor(float lifeCycleTime, GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); |
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| 119 | |
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| 120 | } |
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| 121 | |
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| 122 | /** |
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[4478] | 123 | \param particleType the type of particles in this System |
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| 124 | \param count how many particles (in PARTICLE_MULTI-mode) |
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[3945] | 125 | \todo this will be different |
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| 126 | */ |
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[3942] | 127 | void ParticleSystem::setType(PARTICLE_TYPE particleType, int count) |
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| 128 | { |
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| 129 | this->particleType = particleType; |
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| 130 | this->dialectCount = count; |
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[4338] | 131 | // if (glID != NULL) |
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| 132 | // delete glID; |
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[3942] | 133 | |
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[4338] | 134 | // glID = new GLuint[count]; |
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| 135 | // for (int i = 0; i< count; i++) |
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| 136 | // glID[i] = 0; |
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[3942] | 137 | |
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[4338] | 138 | // glID[0] = glGenLists(count); |
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| 139 | if (this->material) |
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| 140 | delete this->material; |
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| 141 | this->material = NULL; |
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[3946] | 142 | |
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[4338] | 143 | if (this->particleType == PARTICLE_SPRITE) |
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| 144 | { |
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| 145 | this->material = new Material("transperencyMap"); |
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| 146 | this->material->setDiffuseMap("pictures/radialTransparency.png"); |
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| 147 | // material->setTransparency(.5); |
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| 148 | } |
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[3942] | 149 | } |
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| 150 | |
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[3932] | 151 | // setting properties |
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[4478] | 152 | /** |
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| 153 | \brief sets the material to an external material |
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| 154 | \param material: the material to set this material to. |
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| 155 | |
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| 156 | !! important if the extern material gets deleted it MUST be unregistered here or segfault !! |
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| 157 | */ |
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[3932] | 158 | void ParticleSystem::setMaterial(Material* material) |
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| 159 | { |
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[3935] | 160 | this->material = material; |
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[3932] | 161 | } |
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[3931] | 162 | |
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[3938] | 163 | /** |
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[3945] | 164 | \brief Sets the lifespan of newly created particles |
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[4597] | 165 | */ |
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[3932] | 166 | void ParticleSystem::setLifeSpan(float lifeSpan, float randomLifeSpan) |
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| 167 | { |
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[3934] | 168 | this->lifeSpan = lifeSpan; |
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| 169 | this->randomLifeSpan = randomLifeSpan; |
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[3932] | 170 | } |
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| 171 | |
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[3945] | 172 | /** |
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[4430] | 173 | \brief sets the conserve Factor of newly created particles |
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[3945] | 174 | */ |
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[4430] | 175 | void ParticleSystem::setConserve(float conserve) |
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[3932] | 176 | { |
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[4430] | 177 | if (conserve > 1.0) |
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| 178 | this->conserve = 1.0; |
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| 179 | else if (conserve < 0.0) |
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| 180 | this->conserve = 0.0; |
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| 181 | else |
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| 182 | this->conserve = conserve; |
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[3932] | 183 | } |
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| 184 | |
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[4430] | 185 | ///////////////////////////// |
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| 186 | /* Per-Particle Attributes */ |
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| 187 | ///////////////////////////// |
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[3945] | 188 | /** |
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[4430] | 189 | \brief sets a key in the radius-animation on a per-particle basis |
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| 190 | \param lifeCycleTime the time (partilceLifeTime/particleAge) [0-1] |
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| 191 | \param radius the radius at this position |
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| 192 | \param randRadius the randRadius at this position |
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[4378] | 193 | */ |
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[4430] | 194 | void ParticleSystem::setRadius(float lifeCycleTime, float radius, float randRadius) |
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[4378] | 195 | { |
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[4430] | 196 | this->radiusAnim.addEntry(lifeCycleTime, radius); |
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| 197 | this->randRadiusAnim.addEntry(lifeCycleTime, randRadius); |
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[4378] | 198 | } |
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| 199 | |
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| 200 | /** |
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[4430] | 201 | \brief sets a key in the mass-animation on a per-particle basis |
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| 202 | \param lifeCycleTime the time (partilceLifeTime/particleAge) [0-1] |
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| 203 | \param mass the mass at this position |
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| 204 | \param randMass the randomMass at this position |
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[3945] | 205 | */ |
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[4430] | 206 | void ParticleSystem::setMass(float lifeCycleTime, float mass, float randMass) |
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[3932] | 207 | { |
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[4430] | 208 | this->massAnim.addEntry(lifeCycleTime, mass); |
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| 209 | this->randMassAnim.addEntry(lifeCycleTime, randMass); |
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[3932] | 210 | } |
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| 211 | |
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[3945] | 212 | /** |
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[4431] | 213 | \brief sets a key in the color-animation on a per-particle basis |
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[4478] | 214 | \param lifeCycleTime: the time (partilceLifeTime/particleAge) [0-1] |
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| 215 | \param red: red |
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| 216 | \param green: green |
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| 217 | \param blue: blue |
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| 218 | \param alpha: alpha |
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[4338] | 219 | */ |
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[4431] | 220 | void ParticleSystem::setColor(float lifeCycleTime, GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) |
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[4338] | 221 | { |
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[4431] | 222 | this->colorAnim[0].addEntry(lifeCycleTime, red); |
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| 223 | this->colorAnim[1].addEntry(lifeCycleTime, green); |
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| 224 | this->colorAnim[2].addEntry(lifeCycleTime, blue); |
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| 225 | this->colorAnim[3].addEntry(lifeCycleTime, alpha); |
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[4338] | 226 | } |
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| 227 | |
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| 228 | /** |
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[3945] | 229 | \brief ticks the system. |
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| 230 | \param dt the time to tick all the Particles of the System |
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[3932] | 231 | |
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[3945] | 232 | this is used to get all the particles some motion |
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| 233 | */ |
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[3931] | 234 | void ParticleSystem::tick(float dt) |
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| 235 | { |
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[3934] | 236 | Particle* tickPart = particles; // the particle to Tick |
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[4597] | 237 | Particle* prevPart = NULL; // |
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[3934] | 238 | while (likely(tickPart != NULL)) |
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[3932] | 239 | { |
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[4378] | 240 | // applying force to the System. |
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[4385] | 241 | if (likely (tickPart->mass > 0.0)) |
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[4597] | 242 | tickPart->velocity += tickPart->extForce / tickPart->mass * dt; |
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[4378] | 243 | |
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| 244 | // rendering new position. |
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[4348] | 245 | tickPart->position = tickPart->position + tickPart->velocity * dt; |
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[4434] | 246 | tickPart->radius = radiusAnim.getValue(tickPart->lifeCycle) |
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[4597] | 247 | + randRadiusAnim.getValue(tickPart->lifeCycle) * tickPart->radiusRand; |
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[4434] | 248 | |
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| 249 | tickPart->mass = massAnim.getValue(tickPart->lifeCycle) |
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[4597] | 250 | + randMassAnim.getValue(tickPart->lifeCycle) * tickPart->massRand; |
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| 251 | |
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[4338] | 252 | tickPart->extForce = Vector(0,0,0); |
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| 253 | |
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| 254 | // applying Color |
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[4431] | 255 | tickPart->color[0] = this->colorAnim[0].getValue(tickPart->lifeCycle); |
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| 256 | tickPart->color[1] = this->colorAnim[1].getValue(tickPart->lifeCycle); |
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| 257 | tickPart->color[2] = this->colorAnim[2].getValue(tickPart->lifeCycle); |
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| 258 | tickPart->color[3] = this->colorAnim[3].getValue(tickPart->lifeCycle); |
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| 259 | |
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[3932] | 260 | // many more to come |
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| 261 | |
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[3935] | 262 | if (this->conserve < 1.0) |
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[4597] | 263 | tickPart->velocity = tickPart->velocity * this->conserve; |
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[3934] | 264 | // find out if we have to delete tickPart |
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[4385] | 265 | if (unlikely((tickPart->lifeCycle += dt/tickPart->lifeTime) >= 1.0)) |
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[4597] | 266 | { |
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| 267 | // remove the particle from the list |
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| 268 | if (likely(prevPart != NULL)) |
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| 269 | { |
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| 270 | prevPart->next = tickPart->next; |
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| 271 | tickPart->next = this->deadList; |
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| 272 | this->deadList = tickPart; |
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| 273 | tickPart = prevPart->next; |
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| 274 | } |
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| 275 | else |
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| 276 | { |
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| 277 | prevPart = NULL; |
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| 278 | this->particles = tickPart->next; |
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| 279 | tickPart->next = this->deadList; |
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| 280 | this->deadList = tickPart; |
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| 281 | tickPart = this->particles; |
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| 282 | } |
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| 283 | --this->count; |
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| 284 | } |
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[3934] | 285 | else |
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[4597] | 286 | { |
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| 287 | prevPart = tickPart; |
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| 288 | tickPart = tickPart->next; |
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| 289 | } |
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[3932] | 290 | } |
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| 291 | } |
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| 292 | |
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[4597] | 293 | /** |
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[4338] | 294 | \brief applies some force to a Particle. |
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[4377] | 295 | \param field the Field to apply. |
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[4338] | 296 | */ |
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[4395] | 297 | void ParticleSystem::applyField(Field* field) |
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[4338] | 298 | { |
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| 299 | Particle* tickPart = particles; |
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| 300 | while (tickPart) |
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| 301 | { |
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[4395] | 302 | tickPart->extForce += field->calcForce(tickPart->position); |
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[4338] | 303 | tickPart = tickPart->next; |
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| 304 | } |
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| 305 | } |
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| 306 | |
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| 307 | |
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[3945] | 308 | /** |
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| 309 | \brief draws all the Particles of this System |
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[4338] | 310 | |
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| 311 | The Cases in this Function all do the same: |
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| 312 | Drawing all the particles with the appropriate Type. |
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| 313 | This is just the fastest Way to do this, but will most likely be changed in the future. |
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[3945] | 314 | */ |
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[4349] | 315 | void ParticleSystem::draw(void) const |
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[3932] | 316 | { |
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[4176] | 317 | glPushAttrib(GL_ENABLE_BIT); |
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[4338] | 318 | glDisable(GL_LIGHTING); |
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| 319 | |
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[4176] | 320 | Particle* drawPart = particles; |
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[4597] | 321 | |
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[4176] | 322 | switch (this->particleType) |
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[3932] | 323 | { |
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[4338] | 324 | default: |
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[4176] | 325 | case PARTICLE_SPRITE: |
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| 326 | glMatrixMode(GL_MODELVIEW); |
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[4515] | 327 | glDepthMask(GL_FALSE); |
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[4338] | 328 | |
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[4597] | 329 | material->select(); |
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[4357] | 330 | //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_ENV_MODE, GL_MODULATE); |
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[4338] | 331 | |
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[4597] | 332 | |
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[3934] | 333 | while (likely(drawPart != NULL)) |
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[4597] | 334 | { |
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| 335 | glColor4fv(drawPart->color); |
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| 336 | //! \todo implement a faster code for the look-at Camera algorithm. |
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[4338] | 337 | |
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[4597] | 338 | const PNode* camera = State::getInstance()->getCamera(); //!< \todo MUST be different |
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| 339 | Vector cameraPos = camera->getAbsCoor(); |
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| 340 | Vector cameraTargetPos = State::getInstance()->getCameraTarget()->getAbsCoor(); |
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| 341 | Vector view = cameraTargetPos - cameraPos; |
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| 342 | Vector up = Vector(0, 1, 0); |
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| 343 | up = camera->getAbsDir().apply(up); |
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| 344 | Vector h = up.cross(view); |
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| 345 | Vector v = h.cross(view); |
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| 346 | h.normalize(); |
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| 347 | v.normalize(); |
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| 348 | v *= .5 * drawPart->radius; |
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| 349 | h *= .5 * drawPart->radius; |
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[4338] | 350 | |
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[4597] | 351 | glBegin(GL_TRIANGLE_STRIP); |
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| 352 | glTexCoord2i(1, 1); |
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| 353 | glVertex3f(drawPart->position.x - h.x - v.x, |
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| 354 | drawPart->position.y - h.y - v.y, |
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| 355 | drawPart->position.z - h.z - v.z); |
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| 356 | glTexCoord2i(0, 1); |
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| 357 | glVertex3f(drawPart->position.x - h.x + v.x, |
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| 358 | drawPart->position.y - h.y + v.y, |
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| 359 | drawPart->position.z - h.z + v.z); |
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| 360 | glTexCoord2i(1, 0); |
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| 361 | glVertex3f(drawPart->position.x + h.x - v.x, |
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| 362 | drawPart->position.y + h.y - v.y, |
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| 363 | drawPart->position.z + h.z - v.z); |
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| 364 | glTexCoord2i(0, 0); |
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| 365 | glVertex3f(drawPart->position.x + h.x + v.x, |
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| 366 | drawPart->position.y + h.y + v.y, |
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| 367 | drawPart->position.z + h.z + v.z); |
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[4338] | 368 | |
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[4597] | 369 | glEnd(); |
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| 370 | |
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| 371 | drawPart = drawPart->next; |
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| 372 | } |
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[4515] | 373 | glDepthMask(GL_TRUE); |
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[4176] | 374 | break; |
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| 375 | |
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| 376 | case PARTICLE_SPARK: |
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| 377 | glEnable(GL_LINE_SMOOTH); |
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| 378 | glBegin(GL_LINES); |
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| 379 | while (likely(drawPart != NULL)) |
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[4597] | 380 | { |
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| 381 | glColor4fv(drawPart->color); |
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| 382 | glVertex3f(drawPart->position.x, drawPart->position.y, drawPart->position.z); |
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| 383 | glVertex3f(drawPart->position.x - drawPart->velocity.x, |
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| 384 | drawPart->position.y - drawPart->velocity.y, |
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| 385 | drawPart->position.z - drawPart->velocity.z); |
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| 386 | drawPart = drawPart->next; |
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| 387 | } |
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[4176] | 388 | glEnd(); |
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| 389 | break; |
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[4597] | 390 | |
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[4176] | 391 | case PARTICLE_DOT: |
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| 392 | glBegin(GL_POINTS); |
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| 393 | while (likely(drawPart != NULL)) |
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[4597] | 394 | { |
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| 395 | glColor4fv(drawPart->color); |
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[4338] | 396 | |
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[4597] | 397 | glLineWidth(drawPart->radius); |
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[4176] | 398 | |
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[4597] | 399 | glVertex3f(drawPart->position.x, drawPart->position.y, drawPart->position.z); |
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| 400 | drawPart = drawPart->next; |
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| 401 | } |
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[4176] | 402 | glEnd(); |
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| 403 | break; |
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[3932] | 404 | } |
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[4176] | 405 | glPopAttrib(); |
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[3932] | 406 | } |
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| 407 | |
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[3945] | 408 | /** |
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| 409 | \brief adds a new Particle to the System |
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| 410 | \param position the position where the particle gets emitted. |
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| 411 | \param velocity the Starting velocity of the particle. |
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| 412 | \param data some more data given by the emitter |
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| 413 | */ |
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[3951] | 414 | void ParticleSystem::addParticle(const Vector& position, const Vector& velocity, unsigned int data) |
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[3932] | 415 | { |
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[3934] | 416 | if (this->count <= this->maxCount) |
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[3932] | 417 | { |
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[3934] | 418 | // if it is the first Particle |
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| 419 | if (unlikely(particles == NULL)) |
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[4597] | 420 | { |
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| 421 | if (likely(deadList != NULL)) |
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| 422 | { |
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| 423 | this->particles = this->deadList; |
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| 424 | deadList = deadList->next; |
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| 425 | } |
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| 426 | else |
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| 427 | { |
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| 428 | PRINTF(5)("Generating new Particle\n"); |
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| 429 | this->particles = new Particle; |
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| 430 | } |
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| 431 | this->particles->next = NULL; |
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| 432 | } |
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[3934] | 433 | // filling the List from the beginning |
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| 434 | else |
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[4597] | 435 | { |
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| 436 | Particle* tmpPart; |
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| 437 | if (likely(deadList != NULL)) |
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| 438 | { |
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| 439 | tmpPart = this->deadList; |
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| 440 | deadList = deadList->next; |
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| 441 | } |
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| 442 | else |
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| 443 | { |
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| 444 | PRINTF(5)("Generating new Particle\n"); |
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| 445 | tmpPart = new Particle; |
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| 446 | } |
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| 447 | tmpPart->next = this->particles; |
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| 448 | this->particles = tmpPart; |
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| 449 | } |
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| 450 | |
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[4338] | 451 | particles->lifeTime = this->lifeSpan + (float)(rand()/RAND_MAX)* this->randomLifeSpan; |
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| 452 | particles->lifeCycle = 0.0; |
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[3934] | 453 | particles->position = position; |
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| 454 | particles->velocity = velocity; |
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[3951] | 455 | |
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[3934] | 456 | // particle->rotation = ; //! \todo rotation is once again something to be done. |
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[4434] | 457 | particles->massRand = 2*(float)rand()/RAND_MAX -1; |
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| 458 | particles->radiusRand = 2* (float)rand()/RAND_MAX -1; |
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| 459 | particles->mass = this->massAnim.getValue(0.0) + this->randMassAnim.getValue(0.0)*particles->massRand; |
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| 460 | particles->radius = this->radiusAnim.getValue(0.0) + this->randRadiusAnim.getValue(0.0)*particles->radiusRand; |
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[3934] | 461 | |
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| 462 | ++this->count; |
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[3932] | 463 | } |
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| 464 | else |
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[4017] | 465 | PRINTF(5)("maximum count of particles reached not adding any more\n"); |
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[3932] | 466 | } |
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[3931] | 467 | |
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[3944] | 468 | /** |
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| 469 | \brief outputs some nice debug information |
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| 470 | */ |
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| 471 | void ParticleSystem::debug(void) |
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| 472 | { |
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[4493] | 473 | PRINT(0)(" ParticleSystem %s\n", this->getName()); |
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[3944] | 474 | PRINT(0)(" ParticleCount: %d, maximumCount: %d :: filled %d%%\n", this->count, this->maxCount, 100*this->count/this->maxCount); |
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[4123] | 475 | if (deadList) |
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| 476 | { |
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| 477 | PRINT(0)(" - ParticleDeadList is used: "); |
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| 478 | int i = 1; |
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| 479 | Particle* tmpPart = this->deadList; |
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| 480 | while (tmpPart = tmpPart->next) ++i; |
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| 481 | PRINT(0)("count: %d\n", i); |
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| 482 | } |
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[3944] | 483 | } |
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