Putting a pause in a script by using "WaitforSeconds"

B22

var box : GameObject;
var readynow : boolean = true;
 
function Update () {
 if(readynow){
  MakeBox();
 }
}
 
function MakeBox(){
 readynow=false;
 Instantiate(box, transform.position, transform.rotation);
 yield WaitForSeconds(2);
 readynow=true;
}