Added music, best times, more backgrounds and more levels

RunTimer.gd

@@ -0,0 +1,49 @@
+extends Node
+
+class_name RunTimer
+
+var start_ms : int = 0
+var accumulated_pause_time : int = 0
+var pause_time : int = 0
+
+var paused : bool = false
+
+var elapsed_time : int : 
+	get:
+		if paused:
+			var elapsed = Time.get_ticks_msec() - pause_time
+			return Time.get_ticks_msec() - start_ms - accumulated_pause_time - elapsed
+		else:
+			return Time.get_ticks_msec() - start_ms - accumulated_pause_time
+
+func _ready() -> void:
+	EventBus.paused.connect(_on_pause)
+	EventBus.unpaused.connect(_on_unpause)
+
+func _on_timeout() -> void:
+	print(Time.get_ticks_msec())
+
+func _on_pause() -> void:
+	paused = true
+	pause_time = Time.get_ticks_msec()
+
+func pause() -> void:
+	paused = true
+	pause_time = Time.get_ticks_msec()
+
+func unpause() -> void:
+	paused = false
+	var elapsed = Time.get_ticks_msec() - pause_time
+	accumulated_pause_time += elapsed	
+
+func _on_unpause() -> void:
+	paused = false
+	var elapsed = Time.get_ticks_msec() - pause_time
+	accumulated_pause_time += elapsed
+
+func start() -> void:
+	start_ms = Time.get_ticks_msec()
+	accumulated_pause_time = 0
+	paused = false
+
+