如何在unity中使用接口

public interface IMovable
{
    void Move(Vector3 direction);
    void Rotate(float angle);
}

public class PlayerController : MonoBehaviour, IMovable
{
    public void Move(Vector3 direction)
    {
        transform.Translate(direction);
    }
    
    public void Rotate(float angle)
    {
        transform.Rotate(Vector3.up * angle);
    }
}

public class GameManager : MonoBehaviour
{
    private IMovable movableObject;
    
    void Start()
    {
        movableObject = FindObjectOfType<PlayerController>();
    }
    
    void Update()
    {
        Vector3 direction = GetMovementInput();
        float rotation = GetRotationInput();
        
        movableObject.Move(direction);
        movableObject.Rotate(rotation);
    }
    
    // 其他逻辑代码...
}