started adding some cool effects

scripts/musician.gd

@@ -12,48 +12,99 @@ extends AnimatedSprite2D
 @export var solid_texture: Texture2D
 @export var outline_texture: Texture2D
 
+@export var beats_per_boost: int = 4
+@export var song_tempo: int = 120
+
+@export_enum("sample", "viol", "cello", "bass", "ready") var input_action: String
+
+var decay_length: float
+var decay_rate: float
 var is_active: bool = false
+var is_boosted: bool
+var is_over_boosted: bool = false
+var seconds_per_beat: float
+var useconds_per_beat: int
 
 @onready var audio: AudioStreamPlayer2D = %Audio
 @onready var light: PointLight2D = %Light
 @onready var occluder: LightOccluder2D = %Occluder
 @onready var input_prompt: Sprite2D = %InputPrompt
+@onready var volume_bar: ProgressBar = %VolumeBar
+@onready var boost_timer: Timer = %BoostTimer
 
 ## OVERRIDES
 
 func _ready() -> void:
 	light.visible = false
-	audio.connect("finished", enter_exit)
+	_connect_signals()
+
 	input_prompt.texture = outline_texture
-	audio.volume_db = -100.0
-	is_active = true
+	seconds_per_beat = 60.0/float(song_tempo)
+	decay_length = beats_per_boost * seconds_per_beat
+	print("this musician's boosts will last %s seconds" % decay_length)
+	boost_timer.wait_time = decay_length
+	decay_rate = 80.0 / decay_length
+	print("so the volume will drop by %s db per second" % decay_rate)
 
+func _process(delta: float) -> void:
+	if is_over_boosted:
+		distort_pitch(sin(Time.get_ticks_msec()))
+	if is_active and not is_boosted:
+		drop_volume(decay_rate * delta)
+	volume_bar.value = audio.volume_db
 
-func _process(_delta: float) -> void:
-	pass
-
-func _physics_process(_delta: float) -> void:
-	pass
+func _unhandled_input(event: InputEvent) -> void:
+	if event.is_action_pressed("play_pause"):
+		play_pause()
+	if event.is_action_pressed(input_action):
+		boost_volume()
 
 ## CORE
-func enter_exit() -> void:
+func boost_volume() -> void:
+	if is_boosted:
+		is_over_boosted = true
+	audio.volume_db = 0.0
+	is_boosted = true
+	boost_timer.start()
+
+func distort_pitch(distortion: float) -> void:
+	print("distorting by %s" % distortion)
+	audio.pitch_scale += distortion
+	print("pitch scale is %s" % audio.pitch_scale)
+
+func drop_volume(d_r: float) -> void:
+	audio.volume_db -= d_r
+
+func play_pause() -> void:
 	if is_active:
 		play("idle")
-		#audio.stop()
-		audio.volume_db = -100.0
+		audio.stop()
 		light.visible = false
 		is_active = false
 		input_prompt.texture = outline_texture
 	else:
 		play("default")
-		#audio.play()
-		audio.volume_db = 0.0
+		audio.play()
+		if not is_boosted:
+			is_boosted = true
+			boost_timer.start()
 		light.visible = true
 		is_active = true
 		input_prompt.texture = solid_texture
 
 ## PRIVATE/HELPER
 
+func _connect_signals() -> void:
+	boost_timer.connect("timeout", on_boost_timer_timeout)
+	audio.connect("finished", play_pause)
+
 ## RECEIVERS
 
+func on_boost_timer_timeout() -> void:
+	print("boost over")
+	boost_timer.stop()
+	is_boosted = false
+	is_over_boosted = false
+	audio.pitch_scale = 1.0
+
 ## SETTERS/GETTERS