[Gambas-user] Optional and Param (Gambas 3)

[Werner]

I'm trying to implement a simple class that creates a Float[3] array. I
would like to give the user of the class an optional opportunity to fill
the array with data when the class is instantiated.

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' Gambas class file
' Vector3f Class

Public v As New Float[3]

Public Sub _new(Optional x As Float, y As Float, z As Float)
  If Param.Count > 0 Then v[0] = x
  If Param.Count > 1 Then v[1] = y
  If Param.Count > 2 Then v[2] = z
End
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The above does not work because Param.Count is always 0 no matter if
parameter values are supplied or not. My guess is that's because
Optional can only be used from the second parameter onwards (why?).

How can I make this class do what it should?

Thanks
Werner Dahn