How to stop playing running animation when character hits a wall in godot ?

Question

Hi Everyone, I am making a 2d platformer in Godot engine. I have came across on issue.
In a lot of platformers when you try to run and you are on a wall the character plays idle animation. I wanted to implement this in my game. I tried to code that when I am on a wall
play the idle animation

if is_on_wall():
    $AnimatedSprite.play("idle")

But when I run this when the player is on a wall it plays the idle animation but it only the first frame
I also tried this:
if velocity.x == 0:
$AnimatedSprite.play("idle")
But is still plays the running animation because I am using a else statement for running animation

Can Someone help me with this?
Appreciated

Comments

I'm going to go out on a limb here and guess that the code $AnimatedSprite.play("idle") is being run in the _physics_process() function. If that's true, then first check for whether the animation is playing. If not, then play it:

if is_on_wall() and $AnimatedSprite.animation != "idle":
    $AnimatedSprite.play("idle")

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I tried this out and it worked but the problem was it only played the first frame of the idle animation

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Hmm, does the animation not loop? Is that expected? Or rather, would it be fine if the "idle" animation looped?