Axiom.SceneManagers.PortalConnected.Portal.getDerivedCP C# (CSharp) Method

		public Vector3 getDerivedCP()
		{
			return mDerivedCP;
		}
		// Get the sphere (centered on DerivedCP) of the portal in world coordinates (assumes  it is up-to-date)

        // check if portal is close to another portal.
        // Note, both portals are assumed to be stationary
        // and DerivedCP is the current position.
        // this function is INTENTIONALLY NOT EXACT because
        // it is used by PCZSM::connectPortalsToTargetZonesByLocation
        // which is a utility function to link up nearby portals
        //
        public bool closeTo(Portal otherPortal)
        {
            // only portals of the same type can be "close to" each other.
            if (this.mType != otherPortal.Type)
            {
                return(false);
            }
            bool close = false;

            switch (this.mType)
            {
            default:
            case PORTAL_TYPE.PORTAL_TYPE_QUAD:
            {
                // quad portals must be within 1/4 sphere of each other
                Sphere quarterSphere1 = this.mDerivedSphere;
                quarterSphere1.Radius = quarterSphere1.Radius * 0.25f;
                Sphere quarterSphere2 = otherPortal.getDerivedSphere();
                quarterSphere2.Radius = quarterSphere2.Radius * 0.25f;
                close = quarterSphere1.Intersects(quarterSphere2);
            }
            break;

            case PORTAL_TYPE.PORTAL_TYPE_AABB:
                // NOTE: AABB's must match perfectly
                if (this.mDerivedCP == otherPortal.getDerivedCP() && this.mCorners[0] == otherPortal.getCorner(0) &&
                    this.mCorners[1] == otherPortal.getCorner(1))
                {
                    close = true;
                }
                break;

            case PORTAL_TYPE.PORTAL_TYPE_SPHERE:
                // NOTE: Spheres must match perfectly
                if (this.mDerivedCP == otherPortal.getDerivedCP() && this.mRadius == otherPortal.getRadius())
                {
                    close = true;
                }
                break;
            }
            return(close);
        }