Being able to add more time to a Timer

[Skyost]

What could be improved

Currently, it isn't possible to change the elapsed time of a Timer. It's also not possible to change the limit.
I think this could easily be improved by removing the final keyword of the limit variable in the Timer class.

Why should this be improved

I use timers in my game as a countdown before the player dies in a level. But some objects should act as bonus that give some time to the player.

What I've done so far is that I've created a MutableTimer class that allows me to change the limit :

/// A [Timer] that allows to change its limit.
class MutableTimer extends Timer {
  /// The current timer limit.
  double _limit;

  /// Creates a new mutable timer instance.
  MutableTimer(
    double limit, {
    super.onTick,
    super.repeat,
    super.autoStart,
  })  : _limit = limit,
        super(limit);

  @override
  double get limit => _limit;

  /// Changes the current timer limit.
  set limit(double limit) => _limit = limit;
}

but it really is a workaround.

Any risks?

Not to my knowledge.

[spydon]

Sounds reasonable, I don't see any reason for keeping it final.
Should I assign you to the issue?

[Skyost]

@spydon Sure, I can make a PR if you want 🙂