// @Override
public synchronized void tick() {
ArrayList<Element> d = new ArrayList<>();
for (Player l : jugadores) {
l.tick();
}
for (Player z : jugadores) {
for (Element x : restriccion) {
// To avoid player go outside the arena.
tickUp(z, x, d);
tickDown(z, x, d);
tickRight(z, x, d);
tickLeft(z, x, d);
}
}
restriccion.removeAll(d);
}
