Description: I want to make a building by script. THe building has its parts as a flat, a parvis, a ground floor, a second floor etc. In the script below i made functions for each part of the building. Then in the main function start() i create these parts and next i try to combine them under their 'father object' flat.

Here's the script:

class IonianHouse{
//create the shapes of IonianHouse building parts
var oParvis = GameObject.CreatePrimitive(PrimitiveType.Cube);
var oFlat = GameObject.CreatePrimitive(PrimitiveType.Cube);
var oGroundFloor =  GameObject.CreatePrimitive(PrimitiveType.Cube);
var oFirstFloor =   GameObject.CreatePrimitive(PrimitiveType.Cube);
var oLeftCube =     GameObject.CreatePrimitive(PrimitiveType.Cube);
var oRightCube = GameObject.CreatePrimitive(PrimitiveType.Cube);
var oFirstFloorRoof = GameObject.CreatePrimitive(PrimitiveType.Cube);
var oColumn = GameObject.CreatePrimitive(PrimitiveType.Cylinder);

var rot: Quaternion = Quaternion.identity;

function Collumns(){

    var cloneColumn = Instantiate(oColumn , Vector3(-79.01502,3.930318,10.8331), rot);

    //Choose a Structure, which is more capable for the collumn objects    
    var aColumns : GameObject[3];

    oColumn.transform.localScale.x =0.6616377; //X scale of the collumn
    oColumn.transform.localScale.y =3.189006; //Y scale of the collumn
    oColumn.transform.localScale.z = 0.9843928; //Z scale of the collumn

    //Set the Collumns
    for(var i =0; i<=aColumns.length; i++){
       //puts in the Array the oColumn object clones        
       aColumns[i] = cloneColumn;
       cloneColumn.Vector3.x += -2; // puts every oColumn object clone near to the next one, X point distance of every clone is -2 
       }
}

function GroundFloor(){
    var pos = oGroundFloor.transform.position;
    pos = Vector3(-82.50504,3.930318,30.67108);
    oGroundFloor.transform.localScale.x = 14.22;
    oGroundFloor.transform.localScale.y = 6.35;
    oGroundFloor.transform.localScale.z = 32.66;
    Instantiate(oGroundFloor, pos, rot);
}

function FirstFloor(){
    var pos = oFirstFloor.transform.position;
    pos = Vector3(-82.50504,9.904648,27.14175);
    oFirstFloor.transform.localScale.x = 14.22;
    oFirstFloor.transform.localScale.y = 5.53;
    oFirstFloor.transform.localScale.z = 18.01;
    Instantiate(oFirstFloor, pos, rot);
}

function Flat(){
    var pos = oFlat.transform.position;
    pos = Vector3(-82.49211,0.4076467,27.69778);
    oFlat.transform.localScale.x = 14.22;
    oFlat.transform.localScale.y = 0.78;
    oFlat.transform.localScale.z = 38.55168;
    Instantiate(oFlat, pos, rot);
}

function LeftCube(){
    var pos = oLeftCube.transform.position;
    pos = Vector3(-77.17271,3.258567,12.60766);
    oLeftCube.transform.localScale.x = 3.62;
    oLeftCube.transform.localScale.y = 4.97;
    oLeftCube.transform.localScale.z = 3.61;
    Instantiate(oLeftCube, pos, rot);
}

function RightCube(){
    var pos = oRightCube.transform.position;
    pos = Vector3(-87.83255,3.258567,12.60766);
    oRightCube.transform.localScale.x = 3.62;
    oRightCube.transform.localScale.y = 4.97;
    oRightCube.transform.localScale.z = 3.61;
    Instantiate(oRightCube, pos, rot);
}

function Parvis(){
    var pos = oParvis.transform.position;
    pos = Vector3(-87.12512,-0.006041527,51.18095);
    oParvis.transform.localScale.x = 20.05;
    oParvis.transform.localScale.y = 0;
    oParvis.transform.localScale.z = 15.84;
    oParvis.transform.rotation.y = 36.25169;
    Instantiate(oParvis, pos, rot);
}

function Start () {
    Parvis();
    Flat();
    GroundFloor();
    FirstFloor();
    RightCube();
    LeftCube();
    Collumns();

    if (oFlat != null){
       //conect the objects: parent-children
    oFlat.transform.parent = GameObject.Find("oGroundFloor").transform;
    oFlat.transform.parent = GameObject.Find("oParvis").transform;
    oFlat.transform.parent = GameObject.Find("oRightCube").transform;
    oFlat.transform.parent = GameObject.Find("oLeftCube").transform;
    oFlat.transform.parent = GameObject.Find("oFirstFloor").transform;
    oFlat.transform.parent = GameObject.Find("oColumn").transform;
    }

} } 

Is there something wrong with the code according to what i want to do? Thanks in advance.