creating a linked object mesh

hey everyone, the game I am currently developing starts off by generating a bunch of prefabs, the prefabs then delete their original box colliers and link together through meshes, these meshes then create collisions and wala awesome. however the problem is the game won't do this.

code below:

 private var hasrend:boolean;
     private var playerobject:GameObject;
     playerobject = GameObject.Find("FPC");
     private var isdone:boolean;
     function Start ()
     {                
                      var hit : RaycastHit[];
                 hit = Physics.SphereCastAll (gameObject.transform.position, 1.0F,transform.forward,360, 8);
                     if(hit != null)
                     {
                         var mesh : Mesh = new Mesh ();
                         GetComponent(MeshFilter).mesh = mesh;
                         mesh.vertices = [hit[1].transform.position,hit[2].transform.position,this.transform.position];
                         mesh.triangles = [0, 1, 2];
                         this.AddComponent(MeshCollider);
                         hasrend = true;
                         isdone = true;
                     }
                     else
                     {
                         isdone = false;
                         hasrend = false;
                     }
     }
     function Update () 
     {
         if (!isdone && !hasrend)
         {
                      var hit : RaycastHit[];
                 hit = Physics.SphereCastAll (gameObject.transform.position, 1.0F,transform.forward,360, 8);
                     if(hit != null)
                     {
                         var mesh : Mesh = new Mesh ();
                         GetComponent(MeshFilter).mesh = mesh;
                         mesh.vertices = [hit[1].transform.position,hit[2].transform.position,this.transform.position];
                         mesh.triangles = [0, 1, 2];
                         this.AddComponent(MeshCollider);
                         hasrend = true;
                         isdone = true;
                     }
                     else
                     {
                         isdone = false;
                         hasrend = false;
                     }
         }
     }
     function Start ()
     {                
                      var hit : RaycastHit[];
                 hit = Physics.SphereCastAll (gameObject.transform.position, 1.0F,transform.forward,360, 8);
                     if(hit != null)
                     {
                         var mesh : Mesh = new Mesh ();
                         GetComponent(MeshFilter).mesh = mesh;
                         mesh.vertices = [hit[1].transform.position,hit[2].transform.position,this.transform.position];
                         mesh.triangles = [0, 1, 2];
                         this.AddComponent(MeshCollider);
                         hasrend = true;
                         isdone = true;
                     }
                     else
                     {
                         isdone = false;
                         hasrend = false;
                     }
 }

I'm new around here so don't hound me to much