[4597] | 1 | /* |
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[3926] | 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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[3938] | 12 | main-programmer: Benjamin Grauer |
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[3926] | 13 | co-programmer: Patrick Boenzli |
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| 14 | */ |
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| 15 | |
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[5357] | 16 | #define DEBUG_SPECIAL_MODULE DEBUG_MODULE_GRAPHICS |
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[3926] | 17 | |
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[6823] | 18 | #include "box_emitter.h" |
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[3926] | 19 | |
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[3932] | 20 | #include "particle_system.h" |
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| 21 | |
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[7193] | 22 | #include "util/loading/load_param.h" |
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| 23 | #include "util/loading/factory.h" |
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[4381] | 24 | #include "debug.h" |
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| 25 | |
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[3926] | 26 | |
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[10114] | 27 | |
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| 28 | ObjectListDefinition(BoxEmitter); |
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[9709] | 29 | CREATE_FACTORY(BoxEmitter); |
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| 30 | |
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[3926] | 31 | /** |
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[4836] | 32 | * standard constructor |
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[3926] | 33 | */ |
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[6825] | 34 | BoxEmitter::BoxEmitter(const Vector& size, float emissionRate, float velocity, float angle) |
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| 35 | : ParticleEmitter(emissionRate, velocity, angle) |
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[3926] | 36 | { |
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[4726] | 37 | this->init(); |
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[6823] | 38 | this->setSize(size); |
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[4437] | 39 | } |
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| 40 | |
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[4478] | 41 | /** |
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[6823] | 42 | * constructs and loads a BoxEmitter from a XML-element |
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[4836] | 43 | * @param root the XML-element to load from |
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[4478] | 44 | */ |
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[6823] | 45 | BoxEmitter::BoxEmitter(const TiXmlElement* root) |
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| 46 | : ParticleEmitter() |
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[4437] | 47 | { |
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[4726] | 48 | this->init(); |
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[4338] | 49 | |
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[6823] | 50 | if (root != NULL) |
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| 51 | this->loadParams(root); |
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[3926] | 52 | } |
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| 53 | |
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| 54 | /** |
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[4836] | 55 | * standard destructor |
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[3926] | 56 | |
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[4496] | 57 | removes the EmitterSystem from the ParticleEngine |
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[3926] | 58 | */ |
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[6823] | 59 | BoxEmitter::~BoxEmitter () |
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[3935] | 60 | { |
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[6623] | 61 | this->setSystem(NULL); |
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[3935] | 62 | } |
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[3929] | 63 | |
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[4478] | 64 | /** |
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[6623] | 65 | @brief initializes default values of a ParitcleEmitter |
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[4726] | 66 | */ |
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[6823] | 67 | void BoxEmitter::init() |
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[4726] | 68 | { |
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[9686] | 69 | this->registerObject(this, BoxEmitter::_objectList); |
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[6823] | 70 | this->setSize(1.0f,1.0f,1.0f); |
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[4726] | 71 | } |
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| 72 | |
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[6823] | 73 | void BoxEmitter::loadParams(const TiXmlElement* root) |
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[4437] | 74 | { |
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[6823] | 75 | ParticleEmitter::loadParams(root); |
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| 76 | |
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| 77 | LoadParam(root, "size", this, BoxEmitter, setSize) |
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| 78 | .describe("The Size of the BoxEmitter: x, y, z") |
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[7198] | 79 | .defaultValues(1.0f,1.0f,1.0f); |
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[6823] | 80 | } |
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| 81 | |
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[6826] | 82 | void BoxEmitter::setSize(float x, float y, float z) |
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| 83 | { |
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| 84 | this->size = Vector (x,y,z); |
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| 85 | } |
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| 86 | |
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| 87 | |
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[6823] | 88 | void BoxEmitter::emitParticles(unsigned int count) const |
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| 89 | { |
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[6822] | 90 | Vector inheritVelocity = this->getVelocity() * this->inheritSpeed; |
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[3929] | 91 | |
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[6826] | 92 | Vector xDir = this->getAbsDirX() * this->size.x; |
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| 93 | Vector yDir = this->getAbsDirY() * this->size.y; |
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| 94 | Vector zDir = this->getAbsDirZ() * this->size.z; |
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| 95 | |
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[6822] | 96 | for (unsigned int i = 0; i < count; i++) |
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[3950] | 97 | { |
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[6822] | 98 | Vector randDir = Vector(rand()-RAND_MAX/2, rand()-RAND_MAX/2, rand()-RAND_MAX/2); |
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| 99 | randDir.normalize(); |
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[6825] | 100 | randDir = (Quaternion(angle + randomAngle *((float)rand()/RAND_MAX -.5), randDir)).apply(this->getAbsDirX()); |
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[6822] | 101 | Vector velocityV = randDir.getNormalized()*this->velocity + inheritVelocity; |
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[4597] | 102 | |
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[6826] | 103 | Vector box = this->getAbsCoor() + |
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[9686] | 104 | xDir * ((float)rand()/RAND_MAX -.5) + |
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| 105 | yDir * ((float)rand()/RAND_MAX -.5) + |
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| 106 | zDir * ((float)rand()/RAND_MAX -.5); |
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[6823] | 107 | |
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[6822] | 108 | // ROTATIONAL CALCULATION (this must not be done for all types of particles.) |
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| 109 | randDir = Vector(rand()-RAND_MAX/2, rand()-RAND_MAX/2, rand()-RAND_MAX/2); |
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| 110 | randDir.normalize(); |
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| 111 | Quaternion orient = Quaternion(M_PI, randDir); |
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| 112 | Quaternion moment = Quaternion(this->momentum + this->momentumRandom, randDir); |
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[4176] | 113 | |
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[6826] | 114 | this->getSystem()->addParticle(box, velocityV, orient, moment); |
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[4176] | 115 | |
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[3950] | 116 | } |
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[3932] | 117 | } |
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