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Created page with '<source lang="JavaScript"> →FSOSS 2010 Andor Salga: import processing.opengl.*; class Particle{ PVector position; PVector velocity; float age; float lifeTime;…'
<source lang="JavaScript">
/*
FSOSS 2010
Andor Salga
*/
import processing.opengl.*;
class Particle{
PVector position;
PVector velocity;
float age;
float lifeTime;
// opacity (add me!)
// size (add me!)
Particle(){
position = new PVector(0, 0, 0);
velocity = new PVector(1.5, 1.2, 2.0);
age = 0;
lifeTime = 0;
}
void reset(){
age = 0;
}
float getAge(){return age;}
float getLifeTime(){return lifeTime;}
void setAge(float a){age = a;}
void setPosition(PVector pos){position = pos;}
void setVelocity(PVector vel){velocity = vel;}
void setLifeTime(float l){lifeTime = l;}
void update(){
age += 0.1; //fix
velocity.y += 0.1;
position.add(velocity);
}
void draw(){
strokeWeight(5);
stroke(128, 0, 0);
point(position.x, position.y, position.z);
}
}
int NUM_PARTICLES = 500;
class ParticleSystem{
ArrayList p;
ParticleSystem(){
p = new ArrayList();
for(int i = 0; i < NUM_PARTICLES; i++){
Particle particle = new Particle();
p.add(particle);
resetParticle(i);
}
}
void resetParticle(int i){
Particle particle = (Particle)p.get(i);
particle.reset();
particle.setPosition( new PVector(mouseX, mouseY, 0));
particle.setVelocity( new PVector( random(0,2), random(0,2) , 0 ) );
particle.setLifeTime(random(1,15));
particle.setAge(0);
}
void update(){
for(int i = 0; i < NUM_PARTICLES; i++){
Particle particle = (Particle)p.get(i);
particle.update();
if(particle.getAge() > particle.getLifeTime()){
resetParticle(i);
}
}
}
void draw(){
for(int i = 0; i < NUM_PARTICLES; i++){
Particle particle = (Particle)p.get(i);
particle.draw();
}
}
}
ParticleSystem psys;
void setup(){
size(500,500,OPENGL);
psys = new ParticleSystem();
}
void draw(){
background(0);
stroke(255);
psys.update();
psys.draw();
}
</source>
[http://studio.sketchpad.cc/MAMxiAxlxH Run me]
/*
FSOSS 2010
Andor Salga
*/
import processing.opengl.*;
class Particle{
PVector position;
PVector velocity;
float age;
float lifeTime;
// opacity (add me!)
// size (add me!)
Particle(){
position = new PVector(0, 0, 0);
velocity = new PVector(1.5, 1.2, 2.0);
age = 0;
lifeTime = 0;
}
void reset(){
age = 0;
}
float getAge(){return age;}
float getLifeTime(){return lifeTime;}
void setAge(float a){age = a;}
void setPosition(PVector pos){position = pos;}
void setVelocity(PVector vel){velocity = vel;}
void setLifeTime(float l){lifeTime = l;}
void update(){
age += 0.1; //fix
velocity.y += 0.1;
position.add(velocity);
}
void draw(){
strokeWeight(5);
stroke(128, 0, 0);
point(position.x, position.y, position.z);
}
}
int NUM_PARTICLES = 500;
class ParticleSystem{
ArrayList p;
ParticleSystem(){
p = new ArrayList();
for(int i = 0; i < NUM_PARTICLES; i++){
Particle particle = new Particle();
p.add(particle);
resetParticle(i);
}
}
void resetParticle(int i){
Particle particle = (Particle)p.get(i);
particle.reset();
particle.setPosition( new PVector(mouseX, mouseY, 0));
particle.setVelocity( new PVector( random(0,2), random(0,2) , 0 ) );
particle.setLifeTime(random(1,15));
particle.setAge(0);
}
void update(){
for(int i = 0; i < NUM_PARTICLES; i++){
Particle particle = (Particle)p.get(i);
particle.update();
if(particle.getAge() > particle.getLifeTime()){
resetParticle(i);
}
}
}
void draw(){
for(int i = 0; i < NUM_PARTICLES; i++){
Particle particle = (Particle)p.get(i);
particle.draw();
}
}
}
ParticleSystem psys;
void setup(){
size(500,500,OPENGL);
psys = new ParticleSystem();
}
void draw(){
background(0);
stroke(255);
psys.update();
psys.draw();
}
</source>
[http://studio.sketchpad.cc/MAMxiAxlxH Run me]
