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open Brr_note_kit
type t =
{ mutable id : Brr.G.timer_id
; send : float Note.E.send
; mutable counter : Time.counter
}
let create
: unit -> (t * Brr_note_kit.Time.span Note.E.t)
= fun () ->
let event, send = Note.E.create ()
and counter = (Time.counter ()) in
{id = (-1); send; counter}, event
let stop
: t -> unit
= fun {id; _} ->
Brr.G.stop_timer id
let start
: t -> float -> unit
= fun t d ->
let {id; send; _} = t in
t.counter <- Time.counter ();
Brr.G.stop_timer id;
let timer_id = Brr.G.set_interval
~ms:(int_of_float @@ d *. 1000.)
(fun () ->
let span = Time.counter_value t.counter in
send span) in
t.id <- timer_id
let delay : t -> float
= fun t -> Time.counter_value t.counter
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