ball serve and reset

ball.gd

@@ -1,4 +1,20 @@
 extends RigidBody2D
 
+const SPEED = 444
+var direction: Vector2
+
+func _ready() -> void:
+	reset()
+
+func reset() -> void:
+	print("Reset ball")
+	position = Vector2(578, 326)
+	direction = Vector2.ZERO
+
 func serve() -> void:
-	print("Serve!")
+	print("Serve")
+	direction = Vector2(randf_range(-1, 1), randf_range(-1, 1)).normalized()
+	print(direction)
+
+func _physics_process(delta: float) -> void:
+	position += direction * SPEED * delta

game.gd

@@ -11,5 +11,8 @@ func _input(event: InputEvent) -> void:
 		if game_mode == "idle":
 			game_mode = "play"
 			ball.serve()
+		elif game_mode == "play":
+			game_mode = "idle"
+			ball.reset()
 	elif event.is_action_pressed("esc"):
 		get_tree().quit()