void Start()
{
// Distance display
_distance = new ReadOnlyReactiveProperty <float>(Observable.EveryUpdate().Select(_ =>
Vector3.Distance(player.transform.position, mob.transform.position)));
_distance.SubscribeToText(this.distanceText);
// Mob chase player every update
Observable.EveryUpdate().Subscribe(_ =>
mob.direction.Value = (player.transform.position - mob.transform.position).normalized);
// Time sequence of 1/1, 1/2, 1/3, 1/4...
var fracTimeSequence = Observable.Create <float>(observer =>
{
var i = 1;
return(Scheduler.DefaultSchedulers.TimeBasedOperations.Schedule(System.TimeSpan.FromSeconds(this.initialTime / i), self =>
{
observer.OnNext(i % 2 == 0 ? 1.0f : -1.0f);
i++;
self(System.TimeSpan.FromSeconds(this.initialTime / i));
}));
});
fracTimeSequence.Subscribe(_ => this.player.direction.Value = Vector3.Cross(Vector3.back, this.mob.direction.Value).normalized);
}