Or method

Q Or([ Q? other ])

Query-like Opens a new filter group (OR semantics between groups).

An entity passes the overall query if it passes any group. When other is provided its groups are appended; without arguments a fresh empty group is started and subsequent filter calls populate it:

query.With<Fire>().Or().With<Lava>()
// entities that have Fire OR have Lava

Implementation

Q Or([Q? other]) {
  if (other != null) {
    _groups.addAll(other._groups);
  } else {
    _groups.add(.new());
  }
  return self;
}