GDScript Animation issues - game-engine

Question

I am trying to insert animations in all directions, but entering the String "update_animation_parameters(input_direction)" I find this Error "built-in:23 - Parse Error: Unexpected token: Identifier:update_animation_parameters"
`
extends KinematicBody2D
export (int) var speed = 150
export var starting_direction : Vector2 = Vector2(0, 1)
var velocity = Vector2()
onready var animation_tree = $AnimationTree
func _ready():
animation_tree.set("parameters/Idle/blend_position", starting_direction)
func get_input():
velocity = Vector2()
if Input.is_action_pressed("ui_right"):
velocity.x += 1
if Input.is_action_pressed("ui_left"):
velocity.x -= 1
if Input.is_action_pressed("ui_down"):
velocity.y += 1
if Input.is_action_pressed("ui_up"):
velocity.y -= 1
update_animation_parameters(input_direction)
velocity = velocity.normalized() * speed
func _physics_process(_delta):
get_input()
velocity = move_and_slide(velocity)
func update_animation_parameters(move_input : Vector2):
if(move_input != Vector2.ZERO):
animation_tree.set("parameters/Walk/blend_position", move_input)
animation_tree.set("parameters/Idle/blend_position", move_input)
`
**I don’t know how to fix it**

Answer 1

Since you haven't declared an input_direction variable, you're not passing in a value to update_animation_parameters - you're passing an argument that doesn't exist. Try modifying your get_input method as follows:
func get_input():
velocity = Vector2()
if Input.is_action_pressed("ui_right"):
velocity.x += 1
if Input.is_action_pressed("ui_left"):
velocity.x -= 1
if Input.is_action_pressed("ui_down"):
velocity.y += 1
if Input.is_action_pressed("ui_up"):
velocity.y -= 1
update_animation_parameters(velocity)
velocity = velocity.normalized() * speed