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SFX.gd
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SFX.gd
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extends Node
export (bool) var heartbeat_only = false
export (float) var BPM = 100.0
var time = 0.0
var stopped := false
func _process(delta):
if stopped:
return
var previous_time = time
var previous_beat = beat(previous_time)
time += delta
var b = beat(time)
if b > previous_beat:
print(time)
print(b)
print(beats_per_sec())
play_beat(b)
func stop():
stopped = true
func beat(t):
return int(t * beats_per_sec())
func play_beat(b):
print("play " + str(b))
if b % 4 == 0:
play_heartbeat()
else:
play_hi_hat()
func play_heartbeat():
$Heartbeat.play()
for sub in get_tree().get_nodes_in_group("heartbeat_subs"):
sub.on_heartbeat()
yield(get_tree().create_timer(0.5), "timeout")
if is_inside_tree():
on_heartbeat_end()
func play_hi_hat():
if heartbeat_only:
return
$HiHat.play()
func beats_per_sec():
return BPM / 60.0
func on_heartbeat_end():
for sub in get_tree().get_nodes_in_group("heartbeat_subs"):
sub.on_heartbeat_end()