extends Control

var times = []
var i = 0
var bpm: float 
onready var button = $Button
onready var DisplayBPM = $Label

func _ready():
	button.connect("pressed", self, "_button_pressed")

func _button_pressed():
	times.append(OS.get_ticks_usec())
	if (i!=0):
		var delta = times[i]-times[i-1]
		print(delta)
		if (i > 8 && delta > 240000000 / bpm):
			i = 0
			bpm = 0
		else:
			bpm = 60000000 / delta
			i += 1
		DisplayBPM.text = str(bpm) + "BPM"
	else:
		i += 1