static ComponentManager()
{
_lockObject = new object();
_previousPools = EmptyArray <ComponentPool <T> > .Value;
Flag = ComponentFlag.GetNextFlag();
Pools = EmptyArray <ComponentPool <T> > .Value;
Publisher <WorldDisposedMessage> .Subscribe(0, On);
}
public bool this[ComponentFlag flag]
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get => flag.Index < _bitArray?.Length && (_bitArray[flag.Index] & flag.Bit) != 0;