创建新工程

scripts/HUD.gd

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+extends Control
+class_name HUD
+## 游戏内 HUD
+## 显示在线玩家数量、网络状态等信息
+
+# UI 元素
+var online_players_label: Label
+var network_status_indicator: ColorRect
+var network_status_label: Label
+var interaction_hint: Label
+var container: VBoxContainer
+
+# 状态
+var online_player_count: int = 0
+var network_connected: bool = false
+
+func _ready():
+	"""初始化 HUD"""
+	_create_ui()
+	update_layout()
+
+## 创建 UI 元素
+func _create_ui():
+	"""创建 HUD 的所有 UI 元素"""
+	# 设置为全屏但不阻挡输入
+	anchor_right = 1.0
+	anchor_bottom = 1.0
+	mouse_filter = Control.MOUSE_FILTER_IGNORE
+	
+	# 创建顶部容器
+	var top_container = HBoxContainer.new()
+	top_container.name = "TopContainer"
+	top_container.position = Vector2(10, 10)
+	add_child(top_container)
+	
+	# 网络状态指示器
+	network_status_indicator = ColorRect.new()
+	network_status_indicator.custom_minimum_size = Vector2(16, 16)
+	network_status_indicator.color = Color(1, 0, 0, 0.8)  # 红色 - 断开
+	top_container.add_child(network_status_indicator)
+	
+	# 间距
+	top_container.add_child(_create_spacer(10))
+	
+	# 网络状态标签
+	network_status_label = Label.new()
+	network_status_label.text = "未连接"
+	top_container.add_child(network_status_label)
+	
+	# 间距
+	top_container.add_child(_create_spacer(20))
+	
+	# 在线玩家数量标签
+	online_players_label = Label.new()
+	online_players_label.text = "在线玩家: 0"
+	top_container.add_child(online_players_label)
+	
+	# 创建底部容器（交互提示）
+	var bottom_container = VBoxContainer.new()
+	bottom_container.name = "BottomContainer"
+	bottom_container.anchor_top = 1.0
+	bottom_container.anchor_bottom = 1.0
+	bottom_container.offset_top = -100
+	bottom_container.offset_left = 10
+	add_child(bottom_container)
+	
+	# 交互提示
+	interaction_hint = Label.new()
+	interaction_hint.text = ""
+	interaction_hint.add_theme_font_size_override("font_size", 18)
+	interaction_hint.add_theme_color_override("font_color", Color(1, 1, 0.5))
+	bottom_container.add_child(interaction_hint)
+
+## 创建间距
+func _create_spacer(width: float) -> Control:
+	"""创建水平间距"""
+	var spacer = Control.new()
+	spacer.custom_minimum_size = Vector2(width, 0)
+	return spacer
+
+## 更新布局
+func update_layout():
+	"""更新布局以适应窗口大小"""
+	# HUD 元素使用锚点，会自动适应
+	pass
+
+## 更新在线玩家数量
+func update_online_players(count: int):
+	"""
+	更新在线玩家数量显示
+	@param count: 在线玩家数量
+	"""
+	online_player_count = count
+	if online_players_label:
+		online_players_label.text = "在线玩家: %d" % count
+
+## 更新网络状态
+func update_network_status(connected: bool):
+	"""
+	更新网络连接状态
+	@param connected: 是否已连接
+	"""
+	network_connected = connected
+	
+	if network_status_indicator:
+		if connected:
+			network_status_indicator.color = Color(0.2, 1, 0.2, 0.8)  # 绿色 - 已连接
+		else:
+			network_status_indicator.color = Color(1, 0, 0, 0.8)  # 红色 - 断开
+	
+	if network_status_label:
+		network_status_label.text = "已连接" if connected else "未连接"
+
+## 显示交互提示
+func show_interaction_hint(hint_text: String):
+	"""
+	显示交互提示
+	@param hint_text: 提示文本
+	"""
+	if interaction_hint:
+		interaction_hint.text = hint_text
+		interaction_hint.show()
+
+## 隐藏交互提示
+func hide_interaction_hint():
+	"""隐藏交互提示"""
+	if interaction_hint:
+		interaction_hint.text = ""
+		interaction_hint.hide()