122 lines
2.7 KiB
GDScript3
122 lines
2.7 KiB
GDScript3
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class_name RainAmbience
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extends AudioStreamPlayer
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const RAIN_STREAM_PATH: String = (
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"res://audio/ambience/rain_loop_ontario.ogg"
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)
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const SILENT_VOLUME_DB: float = -60.0
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@export_range(-40.0, 0.0, 0.5) var rain_volume_db: float = -8.0
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@export_range(0.0, 10.0, 0.1) var fade_seconds: float = 2.5
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var _weather_service: WorldWeatherService
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var _fade_tween: Tween
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var _is_active: bool = false
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func _ready() -> void:
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bus = &"SFX"
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var rain_stream := load(RAIN_STREAM_PATH) as AudioStreamOggVorbis
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var runtime_stream := (
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rain_stream.duplicate() as AudioStreamOggVorbis
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if rain_stream != null
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else null
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)
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if runtime_stream != null:
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runtime_stream.loop = true
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stream = runtime_stream
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volume_db = SILENT_VOLUME_DB
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func configure(weather_service: WorldWeatherService) -> void:
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if (
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_weather_service != null
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and _weather_service.weather_changed.is_connected(
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_on_weather_changed
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)
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):
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_weather_service.weather_changed.disconnect(_on_weather_changed)
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_weather_service = weather_service
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if (
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_weather_service != null
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and not _weather_service.weather_changed.is_connected(
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_on_weather_changed
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)
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):
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_weather_service.weather_changed.connect(_on_weather_changed)
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func set_active(active: bool) -> void:
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if _is_active == active:
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return
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_is_active = active
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if not active:
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_silence_immediately()
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return
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_transition_to_rain(
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_weather_service != null and _weather_service.is_raining()
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)
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func _on_weather_changed(
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weather: WorldWeatherService.Weather,
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_seconds_remaining: float,
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) -> void:
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_transition_to_rain(weather == WorldWeatherService.Weather.RAINY)
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func _transition_to_rain(is_raining: bool) -> void:
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if not _is_active:
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return
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_stop_fade()
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if is_raining:
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if stream == null:
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return
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if not playing:
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volume_db = SILENT_VOLUME_DB
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play()
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_fade_volume_to(rain_volume_db, false)
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return
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if playing:
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_fade_volume_to(SILENT_VOLUME_DB, true)
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func _fade_volume_to(target_volume_db: float, stop_after_fade: bool) -> void:
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if fade_seconds <= 0.0:
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volume_db = target_volume_db
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if stop_after_fade:
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_finish_fade_out()
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return
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_fade_tween = create_tween()
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_fade_tween.set_trans(Tween.TRANS_SINE)
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_fade_tween.set_ease(Tween.EASE_IN_OUT)
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_fade_tween.tween_property(
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self,
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"volume_db",
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target_volume_db,
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fade_seconds,
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)
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if stop_after_fade:
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_fade_tween.tween_callback(_finish_fade_out)
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func _finish_fade_out() -> void:
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if _weather_service != null and _weather_service.is_raining():
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return
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stop()
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volume_db = SILENT_VOLUME_DB
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_fade_tween = null
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func _silence_immediately() -> void:
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_stop_fade()
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stop()
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volume_db = SILENT_VOLUME_DB
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func _stop_fade() -> void:
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if _fade_tween == null:
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return
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_fade_tween.kill()
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_fade_tween = null
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