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(New Input System) Check if .performed == null

Discussion in 'Input System' started by nvidialover, Oct 5, 2021.

  1. nvidialover

    nvidialover

    Joined:
    Aug 12, 2020
    Posts:
    6
    Is there any way to see if .performed has any methods in its invocation list? I want to do a simple check to see if there's anything in it and add only if it's empty.

    Code (CSharp):
    1. if( _playerinputActions.Player.LMB.performed == null)
    2. {
    3. _playerinputActions.Player.LMB.performed += DoSomething;
    4. }
    5.  
    6.  
    This doesn't work. I'm only starting to get into the new Input System, so there's probably something I'm missing here.
     
    nvidialover, Oct 5, 2021
    #1

  2. dmytro_at_unity

    dmytro_at_unity

    Unity Technologies

    Joined:
    Feb 12, 2021
    Posts:
    212
    Right now, not really, one way to do it would be to have a boolean on your side and only add callback if bool is false and then set bool to true.
     
    dmytro_at_unity, Oct 5, 2021
    #2

  3. nvidialover

    nvidialover

    Joined:
    Aug 12, 2020
    Posts:
    6
    I see. I looked at the input system, and the delegate attached to the event is private, so I can't access it. Thanks anyway, I did it the way you described.
     
    nvidialover, Oct 5, 2021
    #3