scripting multiple objects behavior

Patrick Henry Vlogs

Snap Lens Network Member Lens Studio Team

February 13, 2018 00:04

ok so in my head I have this getting it to be functional is something else

I have 50 objects meshes that are children of Object A

I want each object to have behavior in this instance to spin on fame update

I don't want to manualy add a script to each object via the UI (not scaleable solution)

I was going for

// make each child SceneObject spin
// @input SceneObject invaders
// @input float spinSpeed = 2.0
var sceneObj = script.invaders();
for(var i=0; i<sceneObj.getChild(); i++)
{
var spinTransform = script.sceneObj[].getTransform();
var spinVal = getTime() * script.spinSpeed;
spinTransform.setLocalRotation( quat.quatFromEuler( 0.0, spinVal, 0.0 ) );
}

Travis Chen

Snap Lens Network Member Lens Studio Team

February 13, 2018 19:29

Hey Patrick! You definitely have the right idea :)

I took your code and added a function which is the update for a single invader. Then, you can just focus all invader specific code in that update. You pass in the parent object and it'll spin all the children.

// -----JS CODE-----
// @input SceneObject invadersParent
// @input float spinSpeed = 2.0

function onTurnOn( eventData )
{
}
var turnOn = script.createEvent("TurnOnEvent");
turnOn.bind(onTurnOn);

function onUpdate( eventData )
{
    for( var i = 0; i < script.invadersParent.getChildrenCount(); i++ )
    {
        updateInvader( script.invadersParent.getChild( i ) );
    }
}
var update = script.createEvent("UpdateEvent");
update.bind(onUpdate);

function updateInvader( invader ) 
{
    var invaderTransform = invader.getTransform();
    var spinVal = getTime() * script.spinSpeed;
    invaderTransform.setLocalRotation( quat.quatFromEuler( 0.0, spinVal, 0.0 ) );
}

scripting multiple objects behavior

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