public bool IsSameOrAfter(LayerLifeState state) => _value >= state._value;
public bool IsAfter(LayerLifeState state) => _value > state._value;
public bool IsBefore(LayerLifeState state) => _value < state._value;
public bool IsSameOrBefore(LayerLifeState state) => _value <= state._value;
public bool Is(LayerLifeState state) => _value == state._value;