fix ui, add labels for distance and time, add choo choo button and hide button

core/game_state/game_state.gd

@@ -31,6 +31,10 @@ func _ready() -> void:
 	apply_video_settings()
 	apply_train_colors()
 
+func _process(delta: float) -> void:
+	if not get_tree().paused and is_loaded:
+		save_data.total_time_played_seconds += delta
+
 func apply_video_settings() -> void:
 	get_viewport().use_taa = save_data.anti_aliasing
 	var msaa_mode = Viewport.MSAA_2X if save_data.anti_aliasing else Viewport.MSAA_DISABLED