Impossible JavaScript

Unity Engine
1

I don’t get it.
I had this array that contained two items before, and the indexed array will play the song. It worked just fine.
Now, I want to add more songs to the list. For some reason it wasn’t showing up/playing, so I decided to check the length of the array and turns out, it was the same as before (length was 2 though it should’ve been 3 since I had 3 items in the array).
I decided to see what would happen if I took one of the previous items out and kept the new one in to see if that would play. It didn’t, it somehow kept displaying and playing the old songs- though it’s impossible.

#pragma strict

var songList = ['Au5 - Snowblind','Rameses B - Transformations'];
var background = Texture();
var textMid = GUIText();
var song : AudioClip;
var buttonPress : AudioClip;
private var num = 0;

function OnGui()
{
    GUI.DrawTexture(new Rect(0,0,Screen.width,Screen.height), background);
}

function Start()
{
    textMid.text = songList[num];
    song = Resources.Load('Song Previews/' + songList[num].ToString(), AudioClip);
    audio.clip = song;
    audio.Play();
}

function Update()
{
    if(Input.GetKeyUp(KeyCode.LeftArrow))
    {
        if(num-1 < 0)
        {
            num = songList.Length-1;
        }
        textMid.text = songList[num];
        song = Resources.Load('Song Previews/' + songList[num].ToString(), AudioClip);
        audio.clip = song;
        audio.Play();
        Debug.Log(num + " = num, and the length of songlist: " + songList.Length);
    }
    if(Input.GetKeyUp(KeyCode.RightArrow))
    {
        if(num+1 == songList.Length)
        {
            num = 0;
        }
        textMid.text = songList[num];
        song = Resources.Load('Song Previews/' + songList[num].ToString(), AudioClip);
        audio.clip = song;
        audio.Play();
        Debug.Log(num + " = num, and the length of songlist: " + songList.Length);
    }
    if(Input.GetKey(KeyCode.Space) || Input.GetKey(KeyCode.Return))
    {
        //game scene
        //Application.LoadLevel(songList[num].ToString());
    }
    if(Input.GetKeyUp(KeyCode.Escape) || Input.GetKeyUp(KeyCode.Backspace))
    {
        Application.LoadLevel("MainMenu");
    }
}

What currently loads is the first item in the list and a thing that no longer exists in the list instead of what I have as the second item in the list. Even if I add random things in just to see if it’ll pop up on the GUI, it won’t show and the length of the array remains 2.

2

Public variables get their values from the inspector, not your code (aside from the initial assignment).

–Eric

3

Sorry I am extremely stupid and I should just give up. The fix was that the values of num were never changing because I only checked what would happen if num-1 was less than zero. I never actually subtracted it after, and same goes for when I had to add.
God, I wish I didn’t spend a whole 30 minutes on this.
As for the array length not changing I just reset it in the inspector and threw all the textures and stuff back and set it private and seems to be fine now. Thanks.

4

Definitely shouldn’t ever give up; you found the bug and fixed it so that’s good progress. I’ve certainly spent longer on much stupider things…

–Eric

1 Like