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source: orxonox.OLD/branches/network/src/lib/particles/plane_emitter.cc @ 8196

Last change on this file since 8196 was 7198, checked in by bensch, 19 years ago

orxonox/trunk: new Default Values… they now too are in MultiType instead of (count, …) or (count, va_arg) style

File size: 2.9 KB
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1/*
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:
12   main-programmer: Benjamin Grauer
13   co-programmer: Patrick Boenzli
14*/
15
16#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_GRAPHICS
17
18#include "plane_emitter.h"
19
20#include "particle_system.h"
21
22#include "util/loading/load_param.h"
23#include "util/loading/factory.h"
24#include "debug.h"
25#include "stdlibincl.h"
26
27using namespace std;
28
29
30CREATE_FACTORY(PlaneEmitter, CL_PLANE_EMITTER);
31
32/**
33 *  standard constructor
34*/
35PlaneEmitter::PlaneEmitter(const Vector2D& size, float emissionRate, float velocity, float angle)
36    :  ParticleEmitter(emissionRate, velocity, angle)
37{
38  this->init();
39  this->setSize(size);
40}
41
42/**
43 *  constructs and loads a PlaneEmitter from a XML-element
44 * @param root the XML-element to load from
45*/
46PlaneEmitter::PlaneEmitter(const TiXmlElement* root)
47    : ParticleEmitter()
48{
49  this->init();
50
51  if (root != NULL)
52    this->loadParams(root);
53}
54
55/**
56 *  standard destructor
57
58   removes the EmitterSystem from the ParticleEngine
59*/
60PlaneEmitter::~PlaneEmitter ()
61{
62  this->setSystem(NULL);
63}
64
65/**
66  @brief initializes default values of a ParitcleEmitter
67*/
68void PlaneEmitter::init()
69{
70  this->setClassID(CL_PLANE_EMITTER, "PlaneEmitter");
71  this->setSize(1.0f, 1.0f);
72}
73
74void PlaneEmitter::loadParams(const TiXmlElement* root)
75{
76  ParticleEmitter::loadParams(root);
77
78  LoadParam(root, "size", this, PlaneEmitter, setSize)
79  .describe("The Size of the PlaneEmitter: x, y")
80  .defaultValues(1.0f,1.0f);
81}
82
83void PlaneEmitter::setSize(float x, float y)
84{
85  this->size = Vector2D(x, y);
86}
87
88
89void PlaneEmitter::emitParticles(unsigned int count) const
90{
91  Vector inheritVelocity = this->getVelocity() * this->inheritSpeed;
92
93  Vector xDir = this->getAbsDirX() * this->size.x;
94  Vector yDir = this->getAbsDirZ() * this->size.y;
95  Vector zDir = this->getAbsDirY();
96
97  for (unsigned int i = 0; i < count; i++)
98  {
99    Vector randDir = Vector(rand()-RAND_MAX/2, rand()-RAND_MAX/2, rand()-RAND_MAX/2);
100    randDir.normalize();
101    randDir = (Quaternion(angle + randomAngle *((float)rand()/RAND_MAX -.5), randDir)).apply(zDir);
102    Vector velocityV = randDir.getNormalized()*this->velocity + inheritVelocity;
103
104    Vector plane = this->getAbsCoor() +
105        xDir * ((float)rand()/RAND_MAX -.5) +
106        yDir * ((float)rand()/RAND_MAX -.5);
107
108    // ROTATIONAL CALCULATION (this must not be done for all types of particles.)
109    randDir = Vector(rand()-RAND_MAX/2, rand()-RAND_MAX/2, rand()-RAND_MAX/2);
110    randDir.normalize();
111    Quaternion orient = Quaternion(M_PI, randDir);
112    Quaternion moment = Quaternion(this->momentum + this->momentumRandom, randDir);
113
114    this->getSystem()->addParticle(plane, velocityV, orient, moment);
115
116  }
117}
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