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Forum_Deutsches_Museum_Interaktiv
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Effekte
Tobias Lindner 5 years ago
parent
27682266f3
commit
75dd4f9bb3
5 changed files with 410 additions and 0 deletions
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  1. 42
    0
      attractor.cpp
  2. 34
    0
      attractor.h
  3. 60
    0
      ofApp.h
  4. 211
    0
      particle.cpp
  5. 63
    0
      particle.h

+ 42
- 0
attractor.cpp View File

#include "attractor.h"

Attractor::Attractor()
{
x = 0;
y = 0;
}

//--------------------------------------------------------------------------------------

Attractor::~Attractor()
{

}

//--------------------------------------------------------------------------------------



float Attractor::getY() {
return y;
}


float Attractor::getX() {
return x;
}


void Attractor::setX(float xNew) {
x = xNew;
}

void Attractor::setY(float yNew) {
y = yNew;
}

void Attractor::setup(float xSetup, float ySetup) {
x = xSetup;
y = ySetup;
}


+ 34
- 0
attractor.h View File

//
// attractor.h
// particleSystem
//

#include <stdio.h>


class Attractor {


public:

Attractor();
~Attractor();


float getX();
float getY();

void setX(float x);
void setY(float y);

void setup(float x, float y);


private:

//ofVec2f direction
float x;
float y;

float force;
};

+ 60
- 0
ofApp.h View File

#pragma once

#include "ofMain.h"
#include "particle.h"
#include "ofxOsc.h"
#include "ofxGui.h"

//OSC Reciever PORT & HOST IP
#define PORT 12345
#define HOST "172.20.10.2"

class ofApp : public ofBaseApp {

public:
void setup();
void update();
void draw();
void reset();

void keyPressed(int key);
void keyReleased(int key);
void mouseMoved(int x, int y);
void mousePressed(int x, int y, int button);
void mouseReleased(int x, int y, int button);

ofxXmlSettings default;
ofxXmlSettings attractor;
ofxXmlSettings rain;
ofxXmlSettings brunig;

private:
// OSC Receiver

particleMode currentMode;
string currentModeDisp;

string oscMsg;
ofxOscReceiver receiver;
float timeSent, timeReceived;

int nBlobs;
int blobCount;
int num;
float history;
ofFbo fbo;

float xOfCentroid;
float yOfCentroid;

vector<Particle*> system;
vector<Particle>sys;
vector<Attractor*> attractors;

float birthCount;
double time;

bool varSystem;
bool trails;
};

+ 211
- 0
particle.cpp View File


// particle.cpp
// particleSystem
//

#include "particle.h"
#include "ofApp.h"

Particle::Particle()
{
uniqueVal = ofRandom(-10000, 10000);
}

//--------------------------------------------------------------------------------------


void Particle::setup(particleMode newMode) {
mode = newMode;
age = 0.0;
//maxLife = 30.0;
frc = ofVec2f(0, 0);
//size = ofRandom(4.0, 0.01);
size = .5;
maxLife = 0.99;
mass = ofRandom(100, 250);
if (mode == PARTICLE_MODE_DEFAULT) {
effect.loadFile("xml/default.xml");
int velMin = effect.getValue("default:velMin", 0);
int velMax = effect.getValue("default:velMax", 0);
int lifeMax = effect.getValue("default:maxLife", 0);
setVel(velMin, velMax);
pos.x = ofRandomWidth();
pos.y = ofRandomHeight();
}
else if (mode == PARTICLE_MODE_RADIAL) {
effect.loadFile("xml/radial.xml");
int velMin = effect.getValue("radial:velMin", 0);
int velMax = effect.getValue("radial:velMax", 0);
setVel(velMin, velMax);
pos.x = ofGetWidth()/2;
pos.y = ofGetHeight()/2;
}
else if (mode == PARTICLE_MODE_RAIN) {
effect.loadFile("xml/rain.xml");
vel.x = ofRandom(-40, 40);
vel.y = ofRandom(-40, 40);
pos.x = ofRandomWidth();
pos.y = ofRandomHeight();
drag = ofRandom(0.97, 0.99);
vel.y = fabs(vel.y) * 6.0;
}
else if (mode == PARTICLE_MODE_ATTRACTOR) {
effect.loadFile("xml/rain.xml");
vel.x = ofRandom(-40, 40);
vel.y = ofRandom(-40, 40);
pos.x = ofRandomWidth();
pos.y = ofRandomHeight();
}
else if (mode == PARTICLE_MODE_DETRACTOR) {
effect.loadFile("xml/rain.xml");
vel.x = ofRandom(-40, 40);
vel.y = ofRandom(-40, 40);
pos.x = ofRandomWidth();
pos.y = ofRandomHeight();
}
else {

drag = ofRandom(0.95, 0.998);
}

tex.load("img/br.png");
}

//--------------------------------------------------------------------------------------

void Particle::update(float deltaT, vector<Attractor*>* attractors,vector<Particle*> system) {
if (mode == PARTICLE_MODE_DEFAULT) {
}
else if (mode == PARTICLE_MODE_RAIN) {
float wind = ofSignedNoise(pos.x * 0.003, pos.y * 0.0006, ofGetElapsedTimef() * 0.6);

frc.x = wind * 0.25 + ofSignedNoise(uniqueVal, pos.y * 0.08) * 0.6;
frc.y = ofSignedNoise(uniqueVal, pos.x * 0.06, ofGetElapsedTimef()*0.2) * 0.09 + 0.18;

vel *= drag;
vel += frc * 0.2;

if (pos.y + vel.y > ofGetHeight()) {
pos.y -= ofGetHeight();
}
}
else if (mode == PARTICLE_MODE_ATTRACTOR) {

ofVec2f force;
counterOfActiveAttractors = 0;
for (int i = 0; i < attractors->size(); i++) {
if (attractors->at(i)->getX() == 0 && attractors->at(i)->getY() == 0) {
vel += force;
vel = mass * vel.getNormalized();
break;
}

counterOfActiveAttractors++;
force.set(attractors->at(i)->getX() - pos.x, attractors->at(i)->getY() - pos.y);

if (force.length() < 250) {
force = 40 * force.getNormalized();
size = size + ofRandom(.03, 0.01);
vel += force;
vel = mass * vel.getNormalized();
}
else {
force = 0 * force.getNormalized();
vel += force;
vel = mass * vel.getNormalized();
}
}
}
else if (mode == PARTICLE_MODE_DETRACTOR) {
ofVec2f force;
counterOfActiveAttractors = 0;
for (int i = 0; i < attractors->size(); i++) {
if (attractors->at(i)->getX() == 0 && attractors->at(i)->getY() == 0) {
//force = 0 * force.getNormalized();
vel += force;
vel = mass * vel.getNormalized();
break;
}

counterOfActiveAttractors++;
force.set(attractors->at(i)->getX() - pos.x, attractors->at(i)->getY() - pos.y);

if (force.length() < 600) {
force.normalize();
size = size + ofRandom(.01, 0.01);

vel += -force*2000;
vel = mass * vel.getNormalized();
}
else {
force = 0 * force.getNormalized();
vel += force;
vel = mass * vel.getNormalized();
}
}
}
//Update particle pos
age += deltaT* .5;
pos += (vel * deltaT);

// *** COLLISION *** COLLISION *** COLLISION *** COLLISION *** COLLISION *** COLLISION

//if (position.x <= 0 || position.x >= ofGetWidth()) {
//vel.x = -vel.x;
//position += (vel * deltaT);
//}
//else if (position.y <= 0 || position.y >= ofGetHeight()) {
//vel.y = -vel.y;
//position += (vel * deltaT);
//}
//else {
//position += (vel * deltaT);
//}
}

//--------------------------------------------------------------------------------------
void Particle::draw() {

color.set(getAgeNorm() * 241,241/ getAgeNorm() ,219);

ofSetColor(color, (1 - getAgeNorm()) * 255);
if (mode == PARTICLE_MODE_BRUNIG) {
tex.setColor(color);
tex.draw(pos.x, pos.y, size);
}
else {
ofDrawCircle(pos.x, pos.y, size);
}
}

//------------------------------------------------------------------
void Particle::setMode(particleMode newMode) {
mode = newMode;
}

//--------------------------------------------------------------------------------------
float Particle::getAgeNorm() {
return age / maxLife;
}

//--------------------------------------------------------------------------------------
void Particle::setVel(float min, float max) {
vel.x = ofRandom(min,max);
vel.y = ofRandom(min,max);
}

float Particle::getMaxLife() {
return 1;
}

float Particle::getY() {
return pos.y;
}


float Particle::getX() {
return pos.x;
}



+ 63
- 0
particle.h View File

#pragma once

#include "ofMain.h"
#include "ofxXmlSettings.h"
#include "attractor.h"

enum particleMode{
PARTICLE_MODE_DEFAULT,
PARTICLE_MODE_ATTRACTOR,
PARTICLE_MODE_RAIN,
PARTICLE_MODE_RADIAL,
PARTICLE_MODE_DETRACTOR,
PARTICLE_MODE_POLY,
PARTICLE_MODE_BRUNIG
};

class Particle{

public:

Particle();

void setup(particleMode newMode);

void update(float deltaT, vector<Attractor*>* attractors, vector<Particle*> system);
void setMode(particleMode newMode);
particleMode mode;

void draw();
void reset(ofVec2f _pos);

float getX();
float getY();

void setVel(float min, float max);

float getAgeNorm();
float getMaxLife();

ofxXmlSettings effect;

int counterOfActiveAttractors;

ofVec2f vel;
ofVec2f pos;
ofVec2f frc;

float scale;
float drag;
float uniqueVal;

float maxLife;
float age;

float size;
float mass;

int blobCounterInParticle;

ofColor color;
ofImage tex;
};

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