[SOLVED] Finding a random object in an array and modifying it

Help & Support
1

Hello, I am attempting to find an object from my array of objects at random and then modify its material. Currently, I have this:

var SGamemanager = pc.createScript('sGamemanager');

var shuffleObjects;

//initialize code called once per entity
SGamemanager.prototype.initialize = function() {
    
    shuffleObjects = this.app.root.findByTag("SO");
    console.log(shuffleObjects.length);
    
    var chosenObject = shuffleObjects[Math.floor(Math.random(shuffleObjects.length - 1))];
    console.log("" + chosenObject);
    chosenObject.entity.model.meshInstances[0].material = new pc.Color(1,1,0,1);
    pc.materials.Update();
};

I get the error that entity is undefined.
Any help would be appreciated.

2

Hello @aperez440! I think the error is because chosenObject is already an entity. Try to replace your line with the line below.

chosenObject.model.meshInstances[0].material = new pc.Color(1,1,0,1);
2 Likes
4

Unfortunately, that didnt change anything

5

That’s weird. At the least, the error should be different. Just to be sure, did you save the script after the change?

6

Please, copy/paste the error as it is in the console or give a screenshot of it.

1 Like
7

This code is assigning a colour object to a material property

Assuming you want to change the diffuse colour:

chosenObject.model.meshInstances[0].material.diffuse = new pc.Color(1,1,0,1);
chosenObject.model.meshInstances[0].material.update();
8

I have since then figured it out. Yaustar was correct, I was referencing and changing the material as obosed to referencing the object and then updating it. Thank you very much!

9

Is there a way to mark a correct answer here?

10

I don’t think that’s necessary because every answer contributes to a solution. Even if an answer does not immediately solve the problem, it does not mean that the answer is incorrect.