How to run a script in an instantiated object?

Permanently deleted user

Snap Lens Network Member Lens Studio Team

June 18, 2019 22:52

Hi guys,

I'm trying to call a script on a SceneObject which has been instantiated from a prefab. I would have expected something like the below to work, but I'm having no luck.. Any help would be super appreciated!

//script 1 - instantiate box prefab and try to call a script on it
var p1 = script.boxPrefab.instantiate(script.getSceneObject());
var cs = p1.getAllComponents();
for (var i = 0; i < cs.length; i++) {
if (sc.api.Init) {
sc.api.Init(groupID);
}
}

//script 2 - on boxPrefab
script.api.Init = function (groupID) {
print("Box.Init with groupID = " + groupID);
}

Thanks,

Isaac

Jacob Knipfing
Snap Lens Network Member Lens Studio Team

June 20, 2019 20:57
Hey Isaac,

This is happening because the instantiated script hasn't run yet at this point - it will likely execute on the next frame. What you can do is leave some information in the instantiated object's api that it can access when it executes. Here's a way to do that using a callback function:
```
// Script A

// @input Asset.ObjectPrefab prefab

var newObj = script.prefab.instantiate(null);
var newObjScr = newObj.getFirstComponent("Component.ScriptComponent");
newObjScr.api.onLoad = function() {
    // do what you want here
};
```
```
// Script B (on instantiated object)

// ... Do normal script stuff here

// Call onLoad() at end of script after everything is initialized
if (script.api.onLoad) {
    script.api.onLoad();
}
```
But you can also do it in a more simple way, like the first script just leaves information that the second script uses.
```
// Script A
// ...
newObjScr.api.usefulData = "test";
```
```
// Script B
var usefulData = script.api.usefulData;
init(usefulData);
```
Hope this helps, let me know if you have any more questions!

Jacob
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Permanently deleted user
Snap Lens Network Member Lens Studio Team

June 21, 2019 11:05
Hi Jacob, that was most helpful! Many thanks and glad to know you're hovering around the support forums. :)

Many thanks,

Isaac
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