Add player profile and appearance foundation

ui/profile_preview.gd

@@ -0,0 +1,54 @@
+class_name ProfilePreview
+extends SubViewportContainer
+
+@export_range(0.1, 2.0, 0.05) var drag_sensitivity: float = 0.012
+@export_range(0.1, 4.0, 0.1) var keyboard_speed: float = 1.8
+
+@onready var _preview_root: Node3D = %PreviewRoot
+
+var _dragging: bool = false
+
+
+func _ready() -> void:
+	focus_mode = Control.FOCUS_ALL
+	gui_input.connect(_on_gui_input)
+
+
+func apply_appearance_profile(_profile: Dictionary) -> void:
+	# The capsule is deliberately neutral until modular character assets exist.
+	pass
+
+
+func reset_view() -> void:
+	_preview_root.rotation.y = 0.0
+
+
+func _process(delta: float) -> void:
+	if not has_focus():
+		return
+	var axis := Input.get_axis("ui_left", "ui_right")
+	var right_stick := Input.get_joy_axis(0, JOY_AXIS_RIGHT_X)
+	if absf(right_stick) > 0.2:
+		axis = right_stick
+	if absf(axis) > 0.1:
+		_rotate(axis * keyboard_speed * delta)
+
+
+func _on_gui_input(event: InputEvent) -> void:
+	if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_LEFT:
+		_dragging = event.pressed
+		if event.pressed:
+			grab_focus()
+			accept_event()
+	elif event is InputEventMouseMotion and _dragging:
+		_rotate(event.relative.x * drag_sensitivity)
+		accept_event()
+
+
+func _notification(what: int) -> void:
+	if what == NOTIFICATION_VISIBILITY_CHANGED and not is_visible_in_tree():
+		_dragging = false
+
+
+func _rotate(amount: float) -> void:
+	_preview_root.rotation.y = fposmod(_preview_root.rotation.y + amount, TAU)