Unity Lazy Component Property

LazyComponents.cs

    private LineRenderer _lineRendererComponent;

    public LineRenderer LineRendererComponent
    {
        get
        {
            if (_lineRendererComponent == null)
            {
                _lineRendererComponent = GetComponent<LineRenderer>();

                if (_lineRendererComponent == null)
                    _lineRendererComponent = gameObject.AddComponent<LineRenderer>();
            }

            return _lineRendererComponent;
        }
    }
    
    
    private Rigidbody _rigidbodyComponent;

    public Rigidbody RigidbodyComponent
    {
        get
        {
            if (_rigidbodyComponent == null)
            {
                _rigidbodyComponent = GetComponent<Rigidbody>();

                if (_rigidbodyComponent == null)
                    _rigidbodyComponent = gameObject.AddComponent<Rigidbody>();
            }

            return _rigidbodyComponent;
        }
    }