Godot sample script: GDScript vs C#

script.cs

using Godot;
using System;

public class SharpBird : Node2D
{
    // Member variables here, example:
    // private int a = 2;
    // private string b = "textvar";
    private double direction;
    Random r = new Random(); 

    public override void _Ready()
    {
        // Called every time the node is added to the scene.
        // Initialization here
        AnimatedSprite sprite = GetNode("sprite") as AnimatedSprite;
        //Red tint to distinguish it from the GDScript one
        sprite.SetModulate(new Color(1.0f, 0.0f, 0.0f));
        sprite.Play("idle");
        direction = (r.NextDouble()*10)-5.0;
    }

    public override void _Process(float delta)
    {
        Vector2 newPos = GetPosition();
        newPos.x += (float)direction;
        SetPosition(newPos);
    }


    async void _on_Area2D_area_entered( Area2D area)
    {
        AnimatedSprite sprite = GetNode("sprite") as AnimatedSprite;
        sprite.Play("die");
        await ToSignal(sprite, "animation_finished");
        QueueFree();
    }

}

script.gd

extends Node2D

# class member variables go here, for example:
# var a = 2
# var b = "textvar"
var direction

func _ready():
	randomize()
	# Called every time the node is added to the scene.
	# Initialization here
	get_node("sprite").play("idle")
	direction = rand_range(-5,5)
	pass

func _process(delta):
	position.x += direction

func _on_Area2D_area_entered( area ):
	$sprite.play("die")
	$sprite.connect("animation_finished", self, "on_animation_finished")
	pass # replace with function body

func on_animation_finished():
	queue_free()