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source: orxonox.OLD/trunk/src/lib/particles/dot_emitter.cc @ 8237

Last change on this file since 8237 was 7661, checked in by bensch, 19 years ago

orxonox/trunk: merged the QT_GUI back to the trunk
merged with command:
svn merge https://svn.orxonox.net/orxonox/branches/qt_gui . -r7607:HEAD

absolutely no conflicts :)

File size: 2.3 KB
RevLine 
[4597]1/*
[3926]2   orxonox - the future of 3D-vertical-scrollers
3
4   Copyright (C) 2004 orx
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   ### File Specific:
[3938]12   main-programmer: Benjamin Grauer
[3926]13   co-programmer: Patrick Boenzli
14*/
15
[5357]16#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_GRAPHICS
[3926]17
[6822]18#include "dot_emitter.h"
[3926]19
[3932]20#include "particle_system.h"
21
[7193]22#include "util/loading/load_param.h"
23#include "util/loading/factory.h"
[4381]24#include "debug.h"
25
[3926]26using namespace std;
27
28
[6822]29CREATE_FACTORY(DotEmitter, CL_DOT_EMITTER);
[4725]30
[3926]31/**
[4836]32 *  standard constructor
[3926]33*/
[6825]34DotEmitter::DotEmitter(float emissionRate, float velocity, float angle)
[7302]35    : ParticleEmitter( emissionRate, velocity, angle)
[3926]36{
[4726]37  this->init();
[4437]38}
39
[4478]40/**
[6822]41 *  constructs and loads a DotEmitter from a XML-element
[4836]42 * @param root the XML-element to load from
[4478]43*/
[6822]44DotEmitter::DotEmitter(const TiXmlElement* root)
[7302]45    : ParticleEmitter()
[4437]46{
[4726]47  this->init();
[4338]48
[7302]49  if (root != NULL)
50    this->loadParams(root);
[3926]51}
52
53/**
[4836]54 *  standard destructor
[3926]55
[4496]56   removes the EmitterSystem from the ParticleEngine
[3926]57*/
[6822]58DotEmitter::~DotEmitter ()
[3935]59{
[6623]60  this->setSystem(NULL);
[3935]61}
[3929]62
[4478]63/**
[6623]64  @brief initializes default values of a ParitcleEmitter
[4726]65*/
[6822]66void DotEmitter::init()
[4726]67{
[6822]68  this->setClassID(CL_DOT_EMITTER, "DotEmitter");
[4726]69}
70
[6822]71void DotEmitter::emitParticles(unsigned int count) const
[4437]72{
[6822]73  Vector inheritVelocity = this->getVelocity() * this->inheritSpeed;
[3929]74
[6822]75  for (unsigned int i = 0; i < count; i++)
[3950]76  {
[6822]77    Vector randDir = Vector(rand()-RAND_MAX/2, rand()-RAND_MAX/2, rand()-RAND_MAX/2);
78    randDir.normalize();
[6825]79    randDir = (Quaternion(angle + randomAngle *((float)rand()/RAND_MAX -.5), randDir)).apply(this->getAbsDirX());
[6822]80    Vector velocityV = randDir.getNormalized()*this->velocity + inheritVelocity;
[4597]81
[6822]82    // ROTATIONAL CALCULATION (this must not be done for all types of particles.)
83    randDir = Vector(rand()-RAND_MAX/2, rand()-RAND_MAX/2, rand()-RAND_MAX/2);
84    randDir.normalize();
85    Quaternion orient = Quaternion(M_PI, randDir);
86    Quaternion moment = Quaternion(this->momentum + this->momentumRandom, randDir);
[4176]87
[7302]88    this->getSystem()->addParticle(this->getAbsCoor() + this->getVelocity()*.1*rand()/RAND_MAX,
89                                   velocityV, orient, moment);
[4176]90
[3950]91  }
[3932]92}
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