Unity 2018 Artificial Intelligence Cookbook - Second Edition

Getting ready

We need to create a function for checking whether a position is in the same room as the others:

public bool IsInSameRoom(Vector3 from, Vector3 location, string tagWall = "Wall") 
{ 
    RaycastHit[] hits; 
    Vector3 direction = location - from; 
    float rayLength = direction.magnitude; 
    direction.Normalize(); 
    Ray ray = new Ray(from, direction); 
    hits = Physics.RaycastAll(ray, rayLength); 
    foreach (RaycastHit h in hits) 
    { 
        string tagObj = h.collider.gameObject.tag; 
        if (tagObj.Equals(tagWall)) 
            return false; 
    } 
    return true; 
}