GodotComponentTest/entities/Player.cs

using Godot;
using System;

public class Player : KinematicBody
{
    private MovableComponent _movable;

    // Called when the node enters the scene tree for the first time.
    public override void _Ready()
    {
        _movable = GetNode<MovableComponent>("Movable");
        if (_movable != null)
        {
            _movable.Connect("PositionUpdated", this, nameof(OnPositionUpdated));
        }
    }

    private void OnPositionUpdated(Vector3 newPosition)
    {
        Transform transform = Transform;
        transform.origin = newPosition;
        Transform = transform;
    }
}