@Override
public void update() {
final Iterator<CircleParticle> it = particles.iterator();
while (it.hasNext()) {
final CircleParticle p = it.next();
p.update();
p.setOpacity(Math.min(255, p.getLife()) / 255);
if (p.isDead()) {
it.remove();
}
}
if (lastParticleTime <= 0) {
final int leftScreen = (int) level.getMapViewport().getX();
final int rightScreen =
(int) (level.getMapViewport().getX() + level.getMapViewport().getRect2D().getWidth());
final int size = MathUtils.getRandomInt(10, 20);
final Color color =
new Color(190, MathUtils.getRandomInt(190, 220), MathUtils.getRandomInt(190, 240));
final CircleParticle p =
new CircleParticle(
level,
MathUtils.getRandomInt(leftScreen - 100, rightScreen + 100),
-10,
size,
size,
255,
color);
p.setCollision(false);
p.applyForce(new Vec2D(MathUtils.getRandomFloat(-1, 1), MathUtils.getRandomFloat(1, 3)));
particles.add(p);
lastParticleTime = frequency;
} else {
lastParticleTime--;
}
}
public boolean isOffScreen() {
return !parentLevel.getMapViewport().intersects(getRect2D());
}