Added a HUD for both distance driven and current speed (in pixels and pixels/second respectively)

src/game/level.gd

@@ -21,6 +21,8 @@ extends Node2D
 ## reference to the line node used to draw the finish line
 @export var finish: Line2D
 
+signal distance_changed(new_distance)
+
 #variables
 var width
 var running = true
@@ -79,6 +81,7 @@ func _process(delta):
 				print_debug("adding a lap")
 				lap_distance += path.curve.get_baked_length()
 			last_offset = offset
+		distance_changed.emit(get_total_distance())
 #		print_debug("player distance driven: ", get_total_distance(), " distance since last check: ", off_diff)