feat: add nearby social interactions

scenes/ui/WelcomeDialog.gd

@@ -11,7 +11,7 @@ const GUIDE_PAGES: Array[Dictionary] = [
 		"image_path": "res://assets/maps/square/v1/props/center_whale_fountain_v2_hd_clean.png",
 	},
 	{
-		"text": "操作提示：\n\n- 按 [color=#ffaa00]E[/color] 键可以与 NPC、公告板和信息板互动。\n- 靠近目标后面向它，再按互动键。\n- 输入框获得焦点时，角色移动会暂停响应。",
+		"text": "操作提示：\n\n- 按 [color=#ffaa00]E[/color] 键可以与 NPC、公告板和信息板互动。\n- 靠近目标后面向它，再按互动键。\n- 按 [color=#ffaa00]Esc[/color] 可以关闭当前界面或结束当前互动。\n- 输入框获得焦点时，角色移动会暂停响应。",
 		"image_path": "res://assets/maps/square/v1/props/bottom_entrance_right_service_props_v2_hd_clean.png",
 	},
 ]
@@ -38,6 +38,7 @@ var _guideCurrentPage: int = 0
 var _guideTween: Tween
 
 func _ready() -> void:
+	add_to_group("whaletown_escape_dismissible")
 	_disableChatUiMouseInput()
 
 	var closeButton := find_child("CloseButton", true, false) as Button
@@ -52,8 +53,20 @@ func _exit_tree() -> void:
 	_restoreChatUiMouseInput()
 
 func _input(event: InputEvent) -> void:
+	if get_viewport().is_input_handled():
+		return
 	if event.is_action_pressed("ui_cancel"):
 		queue_free()
+		get_viewport().set_input_as_handled()
+
+func is_escape_dismissible() -> bool:
+	return is_inside_tree()
+
+func get_escape_priority() -> int:
+	return 980
+
+func request_escape_close() -> void:
+	queue_free()
 
 func _onClosePressed() -> void:
 	queue_free()