AI Lerp (2D)

    //I modified the code in the Update() in the AISimpleLerp code
    //that makes the object move to make it work correctly with rigidbodies

void FixedUpdate()
    {
        if (canMove)
        {
            Vector3 direction;
            Vector3 nextPos = CalculateNextPosition(out direction);
            //the direction where it has to go
            Vector3 move_dir = (nextPos - tr.position);

            // Rotate unless we are really close to the target
            if (enableRotation && direction != Vector3.zero)
            {
                if (rotationIn2D)
                {
                    /*float angle = Mathf.Atan2(direction.x, -direction.y) * Mathf.Rad2Deg + 180;
                    Vector3 euler = tr.eulerAngles;
                    euler.z = Mathf.LerpAngle(euler.z, angle, Time.deltaTime * rotationSpeed);*/
                    //the angle the rigidbody (rb) has to rotate
                    //float angle = Mathf.Atan2(nextPos.x, nextPos.y) * Mathf.Rad2Deg;
                    // rb.MoveRotation(angle*Time.fixedDeltaTime);
                    //it uses transform because I couldn't get it working with the rigidbody API
                    transform.rotation = UtilityFunctions.FaceTo(nextPos, tr.position);

                }
                else
                {
                    Quaternion rot = tr.rotation;
                    Quaternion desiredRot = Quaternion.LookRotation(direction);
                    //tr.rotation = Quaternion.Slerp(rot, desiredRot, Time.deltaTime * rotationSpeed);
                }
            }
            rb.MovePosition(tr.position + move_dir.normalized * speed * Time.fixedDeltaTime);
        }

    }