animation on input sample

my_node.gd

extends KinematicBody

var rotation_x_delta = 0.0
var rotation_y_delta = 0.0

func _unhandled_input(event):
	
	if event is InputEventKey and not event.is_echo():
		match event.scancode:
			KEY_A:
				rotation_x_delta = -0.1 if event.pressed else 0.0
			KEY_D:
				rotation_x_delta = 0.1 if event.pressed else 0.0
			KEY_W:
				rotation_y_delta = 0.1 if event.pressed else 0.0
			KEY_S:
				rotation_y_delta = -0.1 if event.pressed else 0.0
	$AnimationPlayer.play("Walk-loop" if rotation_x_delta or rotation_y_delta else "Idle-loop")

func _physics_process(delta):
	
	if rotation_x_delta:
		rotate_x(rotation_x_delta * delta)
	if rotation_y_delta:
		rotate_y(rotation_y_delta * delta)