When i change my players scale to -1 the collision box doesnt fit anymore

Question

This is my 2nd day using godot and making games in general. I took some movement code from a video on yt and made a single sprite for my character (not animated, for now) and it moves okay but when i turn left the sprite changes its scale to -1 and so does the collision box (probably) but the collision box goes out of the character to the right so an arm goes through tiles. I tried to find an answer but i couldnt find anything thats why i created an account here to ask.

here is the script:

 extends KinematicBody2D

const GRAVITY = 35
const JUMP_FORCE = 550
const SPEED = 300
const ACCEL = 0.4
const MAXACCEL = 800

onready var sprite = $Sprite

var velocity = Vector2.ZERO

func _unhandled_input(event):
    if event.is_action_pressed("jump") && is_on_floor():
        velocity.y = -JUMP_FORCE    

func _physics_process(_delta):
    velocity.y += GRAVITY
    if velocity.y > MAXACCEL:
        velocity.y = MAXACCEL

    var dir = Input.get_action_strength("right") - Input.get_action_strength("left")
    if dir != 0:
        sprite.scale.x = dir

    velocity.x = lerp(velocity.x, SPEED * dir, ACCEL)
    velocity = move_and_slide(velocity, Vector2.UP)

Answer 1

Your tree should look like this.

-KinematicBody2d
--CollisionShape2d
--Sprite

When you want to flip your sprite do.

$sprite.scale.x = -1

If your CollisionShape2d is asymmetric then do this instead.

-KinematicBody2d
--CollisionShape2d
---Sprite

$CollisionShape2d.scale.x = -1