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Components/GameBGMPlayer.gd

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+extends Node
+
+## 简单背景音乐播放器 - 支持多平台导出
+## 自动加载音乐文件，支持顺序和随机循环播放
+
+# 播放模式
+enum PlayMode {
+	SEQUENTIAL,  # 顺序循环
+	RANDOM      # 随机循环
+}
+
+# 配置
+@export var play_mode: PlayMode = PlayMode.SEQUENTIAL    # 播放模式
+@export var auto_start: bool = true                      # 自动开始播放
+
+# 预设音乐文件列表（用于导出版本）
+@export var music_files_list: Array[String] = [
+]
+
+# 内部变量
+var audio_player: AudioStreamPlayer
+var music_files: Array[String] = []
+var current_index: int = 0
+var played_indices: Array[int] = []  # 随机模式已播放的索引
+
+func _ready():
+	# 创建音频播放器
+	audio_player = AudioStreamPlayer.new()
+	add_child(audio_player)
+	audio_player.finished.connect(_on_music_finished)
+	
+	# 加载音乐文件
+	_load_music_files()
+	
+	# 自动开始播放
+	if auto_start and music_files.size() > 0:
+		play_next()
+
+func _load_music_files():
+	"""加载音乐文件"""
+	music_files.clear()
+	
+	# 在编辑器中尝试动态加载文件夹
+	if OS.has_feature("editor"):
+		_load_from_folder()
+	
+	# 如果没有找到文件或者是导出版本，使用预设列表
+	if music_files.size() == 0:
+		_load_from_preset_list()
+
+func _load_from_folder():
+	"""从文件夹动态加载（仅编辑器模式）"""
+	var music_folder = "res://audio/music/"
+	var dir = DirAccess.open(music_folder)
+	
+	if dir:
+		dir.list_dir_begin()
+		var file_name = dir.get_next()
+		
+		while file_name != "":
+			if not dir.current_is_dir():
+				var extension = file_name.get_extension().to_lower()
+				# 支持常见音频格式
+				if extension in ["mp3", "ogg", "wav"]:
+					music_files.append(music_folder + file_name)
+					print("动态加载音乐: ", file_name)
+			file_name = dir.get_next()
+		
+		print("动态加载了 ", music_files.size(), " 首音乐")
+
+func _load_from_preset_list():
+	"""从预设列表加载音乐"""
+	for file_path in music_files_list:
+		if ResourceLoader.exists(file_path):
+			music_files.append(file_path)
+			print("预设加载音乐: ", file_path.get_file())
+		else:
+			print("音乐文件不存在: ", file_path)
+	
+	print("预设加载了 ", music_files.size(), " 首音乐")
+
+func play_next():
+	"""播放下一首音乐"""
+	if music_files.size() == 0:
+		print("没有音乐文件可播放")
+		return
+	
+	# 根据播放模式获取下一首音乐的索引
+	match play_mode:
+		PlayMode.SEQUENTIAL:
+			current_index = (current_index + 1) % music_files.size()
+		PlayMode.RANDOM:
+			current_index = _get_random_index()
+	
+	# 播放音乐
+	_play_music(current_index)
+
+func _get_random_index() -> int:
+	"""获取随机音乐索引（避免重复直到所有歌曲都播放过）"""
+	# 如果所有歌曲都播放过了，重置列表
+	if played_indices.size() >= music_files.size():
+		played_indices.clear()
+	
+	# 获取未播放的歌曲索引
+	var available_indices: Array[int] = []
+	for i in range(music_files.size()):
+		if i not in played_indices:
+			available_indices.append(i)
+	
+	# 随机选择一个
+	if available_indices.size() > 0:
+		var random_choice = available_indices[randi() % available_indices.size()]
+		played_indices.append(random_choice)
+		return random_choice
+	
+	return 0
+
+func _play_music(index: int):
+	"""播放指定索引的音乐"""
+	if index < 0 or index >= music_files.size():
+		return
+	
+	var music_path = music_files[index]
+	var audio_stream = load(music_path)
+	
+	if audio_stream:
+		audio_player.stream = audio_stream
+		audio_player.play()
+		print("正在播放: ", music_path.get_file())
+	else:
+		print("加载音乐失败: ", music_path)
+
+func _on_music_finished():
+	"""音乐播放完成时自动播放下一首"""
+	play_next()
+
+# 公共接口方法
+func set_play_mode(mode: PlayMode):
+	"""设置播放模式"""
+	play_mode = mode
+	played_indices.clear()  # 重置随机播放历史
+	print("播放模式设置为: ", "顺序循环" if mode == PlayMode.SEQUENTIAL else "随机循环")
+
+func toggle_play_mode():
+	"""切换播放模式"""
+	if play_mode == PlayMode.SEQUENTIAL:
+		set_play_mode(PlayMode.RANDOM)
+	else:
+		set_play_mode(PlayMode.SEQUENTIAL)
+
+func get_current_music_name() -> String:
+	"""获取当前播放的音乐名称"""
+	if current_index >= 0 and current_index < music_files.size():
+		return music_files[current_index].get_file()
+	return ""
+
+# 运行时添加音乐文件（用于用户自定义音乐）
+func add_music_file(file_path: String) -> bool:
+	"""添加音乐文件到播放列表"""
+	if ResourceLoader.exists(file_path):
+		music_files.append(file_path)
+		print("添加音乐: ", file_path.get_file())
+		return true
+	else:
+		print("音乐文件不存在: ", file_path)
+		return false 

Components/GameBGMPlayer.gd.uid

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+uid://ca2chgx5w3g1y

Components/GameBGMPlayer2.gd

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+extends Node
+
+## 简单背景音乐播放器
+## 自动加载指定文件夹的音乐文件，支持顺序和随机循环播放
+
+# 播放模式
+enum PlayMode {
+	SEQUENTIAL,  # 顺序循环
+	RANDOM      # 随机循环
+}
+
+# 配置
+@export var music_folder: String = "res://assets/音乐/"  # 音乐文件夹路径
+@export var play_mode: PlayMode = PlayMode.SEQUENTIAL    # 播放模式
+@export var auto_start: bool = true                      # 自动开始播放
+
+# 内部变量
+var audio_player: AudioStreamPlayer
+var music_files: Array[String] = []
+var current_index: int = 0
+var played_indices: Array[int] = []  # 随机模式已播放的索引
+
+func _ready():
+	# 创建音频播放器
+	audio_player = AudioStreamPlayer.new()
+	add_child(audio_player)
+	audio_player.finished.connect(_on_music_finished)
+	
+	# 加载音乐文件
+	_load_music_files()
+	
+	# 自动开始播放
+	if auto_start and music_files.size() > 0:
+		play_next()
+
+func _load_music_files():
+	"""加载指定文件夹下的音乐文件"""
+	music_files.clear()
+	
+	var dir = DirAccess.open(music_folder)
+	if dir:
+		dir.list_dir_begin()
+		var file_name = dir.get_next()
+		
+		while file_name != "":
+			if not dir.current_is_dir():
+				var extension = file_name.get_extension().to_lower()
+				# 支持常见音频格式
+				if extension in ["mp3", "ogg", "wav"]:
+					music_files.append(music_folder + file_name)
+					print("加载音乐: ", file_name)
+			file_name = dir.get_next()
+		
+		print("总共加载了 ", music_files.size(), " 首音乐")
+	else:
+		print("无法打开音乐文件夹: ", music_folder)
+
+func play_next():
+	"""播放下一首音乐"""
+	if music_files.size() == 0:
+		print("没有音乐文件可播放")
+		return
+	
+	# 根据播放模式获取下一首音乐的索引
+	match play_mode:
+		PlayMode.SEQUENTIAL:
+			current_index = (current_index + 1) % music_files.size()
+		PlayMode.RANDOM:
+			current_index = _get_random_index()
+	
+	# 播放音乐
+	_play_music(current_index)
+
+func _get_random_index() -> int:
+	"""获取随机音乐索引（避免重复直到所有歌曲都播放过）"""
+	# 如果所有歌曲都播放过了，重置列表
+	if played_indices.size() >= music_files.size():
+		played_indices.clear()
+	
+	# 获取未播放的歌曲索引
+	var available_indices: Array[int] = []
+	for i in range(music_files.size()):
+		if i not in played_indices:
+			available_indices.append(i)
+	
+	# 随机选择一个
+	if available_indices.size() > 0:
+		var random_choice = available_indices[randi() % available_indices.size()]
+		played_indices.append(random_choice)
+		return random_choice
+	
+	return 0
+
+func _play_music(index: int):
+	"""播放指定索引的音乐"""
+	if index < 0 or index >= music_files.size():
+		return
+	
+	var music_path = music_files[index]
+	var audio_stream = load(music_path)
+	
+	if audio_stream:
+		audio_player.stream = audio_stream
+		audio_player.play()
+		print("正在播放: ", music_path.get_file())
+	else:
+		print("加载音乐失败: ", music_path)
+
+func _on_music_finished():
+	"""音乐播放完成时自动播放下一首"""
+	play_next()
+
+# 公共接口方法
+func set_play_mode(mode: PlayMode):
+	"""设置播放模式"""
+	play_mode = mode
+	played_indices.clear()  # 重置随机播放历史
+	print("播放模式设置为: ", "顺序循环" if mode == PlayMode.SEQUENTIAL else "随机循环")
+
+func toggle_play_mode():
+	"""切换播放模式"""
+	if play_mode == PlayMode.SEQUENTIAL:
+		set_play_mode(PlayMode.RANDOM)
+	else:
+		set_play_mode(PlayMode.SEQUENTIAL)
+
+func get_current_music_name() -> String:
+	"""获取当前播放的音乐名称"""
+	if current_index >= 0 and current_index < music_files.size():
+		return music_files[current_index].get_file()
+	return "" 

Components/GameBGMPlayer2.gd.uid

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+uid://cq0ug1c7nibf1