Add in-VR numpad for IP/port input, update default server to 10.0.0.77

Quest system keyboard doesn't work in immersive XR mode, so added a
numpad overlay that appears when tapping input fields.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scenes/start_screen.tscn

@@ -71,7 +71,7 @@ text = "Server:"
 [node name="HostInput" type="LineEdit" parent="UIMesh/SubViewport/PanelContainer/MarginContainer/VBox/ServerRow"]
 layout_mode = 2
 size_flags_horizontal = 3
-text = "10.0.0.64"
+text = "10.0.0.77"
 placeholder_text = "IP address or hostname"
 virtual_keyboard_enabled = true
 

scripts/start_screen.gd

@@ -2,6 +2,7 @@ extends Node3D
 ## VR start screen UI panel.
 ## Renders a 2D UI in a SubViewport on a QuadMesh in VR space.
 ## Allows user to enter server URL/port, connect, and launch AR mode.
+## Includes an in-VR numpad since the Quest system keyboard doesn't work in XR mode.
 
 signal connect_requested(host: String, port: int)
 signal launch_ar_requested()
@@ -13,8 +14,11 @@ signal launch_ar_requested()
 @onready var connect_button: Button = $UIMesh/SubViewport/PanelContainer/MarginContainer/VBox/ConnectButton
 @onready var status_label: Label = $UIMesh/SubViewport/PanelContainer/MarginContainer/VBox/StatusLabel
 @onready var launch_ar_button: Button = $UIMesh/SubViewport/PanelContainer/MarginContainer/VBox/LaunchARButton
+@onready var vbox: VBoxContainer = $UIMesh/SubViewport/PanelContainer/MarginContainer/VBox
 
 var _is_connected: bool = false
+var _numpad_container: VBoxContainer
+var _active_input: LineEdit  # Which input field the numpad types into
 
 
 func _ready() -> void:
@@ -22,6 +26,13 @@ func _ready() -> void:
 	connect_button.pressed.connect(_on_connect_pressed)
 	launch_ar_button.pressed.connect(_on_launch_ar_pressed)
 
+	# Show numpad when input fields are focused
+	host_input.focus_entered.connect(_on_input_focused.bind(host_input))
+	port_input.focus_entered.connect(_on_input_focused.bind(port_input))
+
+	# Build the in-VR numpad
+	_build_numpad()
+
 	# Set up the mesh material to display the SubViewport
 	var material := StandardMaterial3D.new()
 	material.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED
@@ -32,7 +43,73 @@ func _ready() -> void:
 	print("[StartScreen] Ready")
 
 
+func _build_numpad() -> void:
+	_numpad_container = VBoxContainer.new()
+	_numpad_container.add_theme_constant_override("separation", 6)
+	_numpad_container.visible = false
+
+	# Button rows: [1,2,3] [4,5,6] [7,8,9] [.,0,<-] [Clear, Done]
+	var rows := [
+		["1", "2", "3"],
+		["4", "5", "6"],
+		["7", "8", "9"],
+		[".", "0", "<"],
+		["Clear", "Done"],
+	]
+
+	for row in rows:
+		var hbox := HBoxContainer.new()
+		hbox.add_theme_constant_override("separation", 6)
+		hbox.alignment = BoxContainer.ALIGNMENT_CENTER
+		for key in row:
+			var btn := Button.new()
+			btn.text = key
+			btn.custom_minimum_size = Vector2(80, 55)
+			btn.size_flags_horizontal = Control.SIZE_EXPAND_FILL
+			if key == "Clear" or key == "Done":
+				btn.custom_minimum_size = Vector2(130, 55)
+			btn.add_theme_font_size_override("font_size", 26)
+			btn.pressed.connect(_on_numpad_key.bind(key))
+			hbox.add_child(btn)
+		_numpad_container.add_child(hbox)
+
+	# Insert numpad after the PortRow
+	var port_row_idx := port_input.get_parent().get_index()
+	vbox.add_child(_numpad_container)
+	vbox.move_child(_numpad_container, port_row_idx + 1)
+
+
+func _on_input_focused(input: LineEdit) -> void:
+	_active_input = input
+	_numpad_container.visible = true
+
+
+func _on_numpad_key(key: String) -> void:
+	if _active_input == null:
+		return
+
+	if key == "<":
+		# Backspace
+		var t := _active_input.text
+		if t.length() > 0:
+			_active_input.text = t.substr(0, t.length() - 1)
+			_active_input.caret_column = _active_input.text.length()
+	elif key == "Clear":
+		_active_input.text = ""
+		_active_input.caret_column = 0
+	elif key == "Done":
+		_numpad_container.visible = false
+		_active_input.release_focus()
+		_active_input = null
+	else:
+		_active_input.text += key
+		_active_input.caret_column = _active_input.text.length()
+
+
 func _on_connect_pressed() -> void:
+	# Hide numpad if open
+	_numpad_container.visible = false
+
 	var host := host_input.text.strip_edges()
 	if host.is_empty():
 		update_status("Please enter a server address")