CreateParameter

CreateParameter(string text)

Creates a parameter to exchange information between screens and objects. SearchParameter is used to search a paramater created with this function.

function Main()
{
    //-Box
    if(!SearchParameter("BoxDestroyed"))
    {
        BoxDestroyed.Hide();
        Box=CreateObject("Box",185,280);
        Box.description="A wooden box, It seems there is something under it.";
        Box.use=useBox; 
    }else{
        BoxDestroyed.Show();
        Stairs.description="I'm afraid, It's dark";
        Stairs.DoorTo("underground");
    }
}
function VampireCollideBox()
{
    DestroyObject(Box);
    BoxDestroyed.Show();
    Vampire.CollisionWith(null);
    CreateParameter("BoxDestroyed");
    Stairs.DoorTo("underground");
}