Enemy Field of View

private void FieldOfViewCheck()
    {
        // Check for colitions in the radius of sphere cast
        Collider[] rangeChecks = Physics.OverlapSphere(transform.position, radius, targetMask);
        // If there is at least 1 collition; player is in field of view
        if (rangeChecks.Length != 0 && monsterDead == false)
        {
            Transform target = rangeChecks[0].transform;
            Vector3 directionToTarget = (target.position - transform.position).normalized;

            // If target is in the sector of field of view
            if (Vector3.Angle(transform.forward, directionToTarget) < angle / 2)
            {
                float distancetoTarget = Vector3.Distance(transform.position, target.position);
                
                if (distancetoTarget <= maxDistance && !Physics.Raycast(transform.position,
                                                                        directionToTarget,
                                                                        distancetoTarget,
                                                                        obstructionMask))
                    canSeePlayer = true;
                else
                    canSeePlayer = false;
            }
            else
                canSeePlayer = false;
        }
        else
            canSeePlayer = false;
    }