#include "particle.h"

Particle::Particle(const Vector4D &p, const Vector4D &v) :
    position(p),
    velocity(v),
    lifetime(0) {
}

#include "particle.h"

Particle::Particle(const Vector4D &p, const Vector4D &v) :
    position(p),
    velocity(v),
    lifetime(-1) {
}

Set default lifetime to lt 0
Set default lifetime to lt 0
