Uncaught reference error: [something defined] is not defined

Help & Support
1

[Something defined] being colliders. Can someone explain to me why this is returning an uncaught reference error?

// initialize code called once per entity
RotateRing.prototype.initialize = function() 
{
    var colliders = this.app.root.findByTag('collider');
    
    for(i=0;i<colliders.length;i++)
    {
        colliders[i].rigidbody.enabled = false;
    }
};

RotateRing.prototype.spin = function()
{
    for(i=0;i<colliders.length;i++) //Error here
    {
        if(colliders[i].rigidbody)
        {
            colliders[i].rigidbody.enabled = true;
        }
    
        colliders[i].rigidbody.applyTorque(0,50,0);
    }
    
    this.entity.rotate(0,50,0);
};
2

Because colliders is not in the scope of function spin. You should make it a member variable in initialize.

3

Okay, but I’ve done this before in a previous project:

CheckRoll.prototype.initialize = function() 
{    
    var dice = this.app.root.findByTag('Dice');
    //More variables here
};

CheckRoll.prototype.check = function()
{
    //Makes sure each dice has stopped by comparing its current position
    //to its last position
    for(i=0;i<dice.length;i++)
    {
        if(stopped[i] === true)
        {
            continue;
        }
        var diePos = dice[i].getLocalPosition();
        if(lastPos[i] !== undefined)
        {
            if(this.toDecimal(diePos.x) === this.toDecimal(lastPos[i].x) && this.toDecimal(diePos.y) === this.toDecimal(lastPos[i].y) && this.toDecimal(diePos.z) === this.toDecimal(lastPos[i].z))
            {
                dice[i].stopped = true;
                this.stop = true;
            }
        }
        lastPos[i] = diePos.clone();
    }
    
    this.stopCheck();
};

There’s about three or four other places in this project where I call that dice variable outside of initialize without issue.

4

You are probably declaring dice somewhere globally elsewhere too. If you want to access variables in another function you need to declare them in a scope that contains the scope of the function or make them member variables e.g. this.colliders = ...

5

Here’s a link to the only script in the project I can find a declaration for dice.
https://playcanvas.com/editor/code/529780?tabs=10861152,10964296

I went through all other scripts and couldn’t find another pace I declare dice as something.

6

Wait I missed one…

7

That was it, I declared it here without realising.
https://playcanvas.com/editor/code/529780?tabs=10827801