Method updateQuads

tests/cpp-tests/Source/ParticleTest/ParticleTest.cpp:2082–2088

}

void Issue870::updateQuads(float dt)
{
    _index      = (_index + 1) % 4;
    auto rect   = Rect(_index * 32, 0, 32, 32);
    auto system = (ParticleSystemQuad*)_emitter;
    system->setTextureWithRect(_emitter->getTexture(), rect);
}

std::string Issue870::title() const
{