How to check visibility of the sprite?

Hi Markus! 

There isn't a way to track whether or not a transparent sprite to the eye's pupil is visible or not. What are you trying to achieve? maybe there is a workaround :)

Cheers,

Jon

Hi Markus,

You can do this by using the Head Binding component and putting one on the top eyelid and another one on bottom eyelid, then getting the distance between these two points. If the distance is under the certain amount trigger your function.

// @input SceneObject topEyelid
// @input SceneObject bottomEyelid

var distanceToTrigger = 1.0  //Try to customize the value

function getDistance( pointA, pointB )
{
     return pointA.distance( pointB );
}

function onUpdateEvent( eventData )
{
if(script.topEyelid && script.bottomEyelid)
{
      var dist = getDistance( script.topEyelid.getTransform().getWorldPosition(), script.bottomEyelid.getTransform().getWorldPosition() );
      if(dist < distanceToTrigger)
      {
             //trigger custom function
      }
}
}
var updateEvent = script.createEvent( "UpdateEvent" );
updateEvent.bind( onUpdateEvent );

Let me know if you need any clarification! Can't wait to see what you come up with. 

Cheers,

Jon