first work

scenes/playground/racket/Racket.gd

@@ -0,0 +1,14 @@
+extends RigidBody2D
+
+
+const SPEED = 300.0
+
+func _ready():
+	contact_monitor = true
+
+func _physics_process(delta):
+	if Input.is_action_pressed(get_meta("UP_KEY")):
+		move_and_collide(Vector2.UP * SPEED * delta)
+	
+	if Input.is_action_pressed(get_meta("DOWN_KEY")):
+		move_and_collide(Vector2.DOWN * SPEED * delta)