Udon Audio Low Pass Trigger

AudioLowPassTrigger.cs

//Meant to be thrown on a collider that triggers the effect. Could definitely be made better, rushed it for a project.

using UdonSharp;
using UnityEngine;
using VRC.SDKBase;
using VRC.Udon;

public class AudioLowPassTrigger : UdonSharpBehaviour
{

    public AudioSource AudioSource;
    public AudioLowPassFilter LowPassFilter;
    public AudioReverbFilter ReverbFilter;
    public float CutOffFrequency = 140;

    private float volume;

    private int state;

    public void Start()
    {
        volume = AudioSource.volume;
        LowPassFilter.cutoffFrequency = CutOffFrequency;
        ReverbFilter.enabled = true;
    }

    public override void OnPlayerTriggerEnter(VRCPlayerApi player)
    {
        if (player.isLocal)
        {
            state = 1;
        }

    }

    public override void OnPlayerTriggerExit(VRCPlayerApi player)
    {
        if (player.isLocal)
        {
            volume = AudioSource.volume;
            state = 2;
        }

    }

    public void Update()
    {
        if(state == 0)
        {

        }
        else if (state == 1) //Entering
        {
            LowPassFilter.cutoffFrequency = Mathf.Min(LowPassFilter.cutoffFrequency + 500, 22000);
            AudioSource.volume = Mathf.Min(AudioSource.volume + .1f, volume);

            if (LowPassFilter.cutoffFrequency >= 22000)
            {
                ReverbFilter.enabled = false;
                state = 0;
            }
        }
        else if (state == 2) //Exiting
        {
            ReverbFilter.enabled = true;

            LowPassFilter.cutoffFrequency = Mathf.Max(LowPassFilter.cutoffFrequency - 500, CutOffFrequency);
            AudioSource.volume = Mathf.Max(AudioSource.volume - .1f, .110f);

            if (LowPassFilter.cutoffFrequency <= CutOffFrequency)
            {
                AudioSource.volume = .110f;
                state = 0;
            }
        }
    }

}