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TWEENING driving me craaazy !!!!

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Kanz
Snap Lens Network Member Lens Studio Team

im trying to  start a tween and stop it 
the problem that the stop condition never work
when the start condition activated its just wont be stop

i tried it with behavior script and the same issue

i tried to change to ( frame update / move end .. ) just not working
HELP PLEASE

// -----JS CODE-----

// @input Component.ScreenTransform screenTransform

// @input Component.ScreenTransform screenTransform2

// @input SceneObject objectWithTweens

var pointA = script.screenTransform.getTransform().getWorldPosition();

var pointB = script.screenTransform2.getTransform().getWorldPosition();

var distance = pointA.distance(pointB);

if(distance <= 40.055){

global.tweenManager.startTween( script.objectWithTweens, "a1" );

}else {

global.tweenManager.stopTween( script.objectWithTweens, "a1" );

}

 

Thank you

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  • Avatar
    Brandon / Apoc
    Snap Lens Network Member Lens Studio Team
    • Edited

    A few things I notice here, first you need some sort of check if the tween has already been called or you're gonna be constantly calling or stopping it which won't let it play right and possibly slow performance.

    Second, a distance of 40 for screen transforms is pretty high...in testing I couldn't spread them out even close to that far. Maybe you're using them differently but I still updated the value in the example code to 4.0055 instead.

    Here's an example script I made with these changes, this should run on initialized:

     

    // @input Component.ScreenTransform screenTransform
    // @input Component.ScreenTransform screenTransform2
    // @input SceneObject objectWithTweens

    // Boolean that tells us if the tween has been started
    var tweenRunning = false

    //Update event is running every frame
    var event = script.createEvent('UpdateEvent')
    event.bind(function(eventData) {

      // Get distance
      var pointA = script.screenTransform.getTransform().getWorldPosition()
      var pointB = script.screenTransform2.getTransform().getWorldPosition()
      var distance = pointA.distance(pointB)

      //Check if distance is less than <value>>
      if (distance <= 4.0055) {

        // Check if the tween is already started on this collision so it won't constantly restart
        if (!tweenRunning) {
          global.tweenManager.startTween(script.objectWithTweens, 'a1')
          tweenRunning = true
        }
      } else {

        // Check if the tween has already been stopped so we aren't needlessly calling stop
        if (tweenRunning) {
          global.tweenManager.stopTween(script.objectWithTweens, 'a1')
          tweenRunning = false
        }
      }
    })
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  • Avatar
    Olha
    Snap Lens Network Member Lens Studio Team

    Hi, just me!

    Can I wonder what kind of Tween are you using? 

    I would suggest that for the screen transforms you are using TweenScreenTransform script and anchor type of tween. 

    I added output for the distance to see if it reaches desired value and a flag to check if tween is playing or not, so tween is not trying to start every frame. 

    Here is my code: (set this script to LensTurnedOn or Initialized event) 

     

    // -----JS CODE-----

    // @input Component.ScreenTransform screenTransform

    // @input Component.ScreenTransform screenTransform2

    // @input SceneObject objectWithTweens

    // @input float desiredDistance

    var isPlaying = false;

    script.createEvent("UpdateEvent").bind(function (eventData) {

        var pointA = script.screenTransform.getTransform().getWorldPosition();

        var pointB = script.screenTransform2.getTransform().getWorldPosition();

        var distance = pointA.distance(pointB);

        print(distance);// see if you reach desired distance

        if (distance <= script.desiredDistance) {

            if (!isPlaying) {

                global.tweenManager.startTween(script.objectWithTweens, "a1");

                isPlaying = true;

                print("staring tween");

            }

        } else {

            if (isPlaying) {

                global.tweenManager.stopTween(script.objectWithTweens, "a1");

                print("stopping tween");

                isPlaying = false;

            }

        }

    });

    And here is a tween i use

     

    Lets me know if there any questions!

    Best 

    Olha

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  • Avatar
    Olha
    Snap Lens Network Member Lens Studio Team
    • Edited

    Whoops! Looks like I posted an answer at the same time with Brandon

    Sorry for the duplication!

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  • Avatar
    Kanz
    Snap Lens Network Member Lens Studio Team
    • Edited

    Thank you Olha - Brandon / Apoc for the responding

    as you see im trying to make a slider where user can move and chose 4 different choices

    i did every thing but the problem the tween not working with the type ( position to ) but working with type ( Offset )

    the offset type not giving me the right position every time  changed

    the second problem when i activated the second tween its just stucking not even in the position 

    this is a preview video for the slider

    https://www.4shared.com/video/61iwne_9ea/slider_prev.html

    and this is the project im working on

    https://www.mediafire.com/file/mktdbap8fq3ro46/NEW2.rar/file

    Thank you so much

     

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  • Avatar
    Olha
    Snap Lens Network Member Lens Studio Team

    Hi, just me!

    https://support.lensstudio.snapchat.com/hc/en-us/community/posts/360050394251-Select-HELP-How-to-create-slider-with-options-?page=1#community_comment_360008654031 here is one of your posts which I answered some time ago. Could you please take a look? 

    Best

    Olha

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