134 lines
3.3 KiB
GDScript
134 lines
3.3 KiB
GDScript
@tool
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class_name Sfx extends AudioStreamPlayer
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@export_enum("交互与效果音", "BGM", "场景背景音") var mode := "交互与效果音":
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set(value):
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mode = value
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notify_property_list_changed()
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# 默认 stream 会变成 default 值
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@export var audio_dict = {} as Dictionary[String, AudioStream]
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# 当前播放状态注册；节点销毁前卸载
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# TODO BGM 过程抑制场景音效；场景音效随玩家运动呼吸 (结合 Sfx2D)
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# 感应玩家移动：装饰音
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var default_db := 0.0
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# 只有 场景背景音 生效
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var scene_loop := true
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var scene_autostart := true
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var scene_sense_player_mov := false
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func _ready() -> void:
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bus = &"game_sfx"
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default_db = volume_db
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if Engine.is_editor_hint():
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audio_dict.erase("default")
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return
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if stream:
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audio_dict["default"] = stream
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finished.connect(_on_finished)
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func switch_stream(stream_name: String, play_next:= false, easing_duration := 1.0):
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if not audio_dict.has(stream_name):
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printerr("Audio stream not found in audio_dict: ", stream_name)
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return
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if easing_duration > 0:
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easing_kill(easing_duration).tween_callback(func():
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stream = audio_dict[stream_name]
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if play_next:
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play()
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)
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else:
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stream = audio_dict[stream_name]
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if play_next:
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play()
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func _on_finished() -> void:
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if mode == "场景背景音" and scene_loop:
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play()
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func resart(ease_duration := 1.0):
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easing_kill(ease_duration).tween_callback(play)
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# queue free 导致 sfx 无法播放，使用全局声源
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func global_play() -> void:
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if stream:
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AudioManager.play_sfx(stream)
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# 注意：会导致 volume db 变化
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func easing_kill(duration: float = 2.0) -> Tween:
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# stop with easing
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var tween = create_tween()
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if playing:
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tween.tween_property(self, "volume_db", -80.0, duration)
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tween.tween_callback(stop)
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# set volume_db back to default
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tween.tween_callback(func(): volume_db = default_db)
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return tween
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func _get_property_list() -> Array[Dictionary]:
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if mode != "场景背景音":
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return []
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# # 只有 场景背景音 生效
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# var scene_loop := true
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# var scene_autostart := true
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# var scene_sense_player_mov := false
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return [
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{
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"name": "场景背景音配置项",
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"type": TYPE_NIL,
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"usage": PROPERTY_USAGE_GROUP,
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},
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{"name": "自动开始", "type": TYPE_BOOL},
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{"name": "循环播放", "type": TYPE_BOOL},
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{"name": "感应玩家操作", "type": TYPE_BOOL}
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]
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func _property_can_revert(property: StringName) -> bool:
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return property == "自动开始" or property == "循环播放" or property == "感应玩家操作"
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func _property_get_revert(property: StringName) -> Variant:
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if property == "自动开始" or property == "循环播放":
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return true
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elif property == "感应玩家操作":
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return false
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return null
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func _set(property: StringName, value: Variant) -> bool:
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if mode != "场景背景音":
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return false
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if property == "自动开始":
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if value != null:
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autoplay = value
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scene_autostart = value
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return true
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elif property == "循环播放":
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scene_loop = value
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return true
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elif property == "感应玩家操作":
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scene_sense_player_mov = value
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return true
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return false
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func _get(property: StringName) -> Variant:
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if mode != "场景背景音":
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return null
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if property == "自动开始":
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return scene_autostart
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elif property == "循环播放":
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return scene_loop
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elif property == "感应玩家操作":
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return scene_sense_player_mov
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return null
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