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minenice55 2023-01-18 21:30:21 -05:00
parent 5ad54b348c
commit 88ed365629
6 changed files with 0 additions and 206 deletions
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140
Assets/Scripts/AudioDspTimeKeeper.cs
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using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
namespace HeavenStudio
{
public class AudioDspTimeKeeper : MonoBehaviour
{
[SerializeField] private List<double> xValuesL = new List<double>();
[SerializeField] private List<double> yValuesL = new List<double>();
private double coeff1, coeff2;
private double audioDspStartTime;
private AudioSource audioSource;
public double currentSmoothedDSPTime;
public double dspTime;
public float audioTime;
private double musicDrift;
private Conductor conductor;
public float latencyAdjustment;
public void Play()
{
audioSource.PlayScheduled(audioDspStartTime);
audioDspStartTime = AudioSettings.dspTime;
}
private void Start()
{
conductor = GetComponent<Conductor>();
audioSource = conductor.musicSource;
}
private void Update()
{
if (!audioSource.isPlaying) return;
float currentGameTime = Time.realtimeSinceStartup;
double currentDspTime = AudioSettings.dspTime;
// Update our linear regression model by adding another data point.
UpdateLinearRegression(currentGameTime, currentDspTime);
CheckForDrift();
dspTime = GetCurrentTimeInSong();
audioTime = audioSource.time;
}
public double SmoothedDSPTime()
{
double result = Time.unscaledTimeAsDouble * coeff1 + coeff2;
if (result > currentSmoothedDSPTime)
{
currentSmoothedDSPTime = result;
}
return currentSmoothedDSPTime;
}
public double GetCurrentTimeInSong()
{
return this.SmoothedDSPTime() - audioDspStartTime - latencyAdjustment;
}
private void CheckForDrift()
{
double timeFromDSP = this.SmoothedDSPTime() - audioDspStartTime;
double timeFromAudioSource = audioSource.timeSamples / (float)audioSource.clip.frequency;
double drift = timeFromDSP - timeFromAudioSource;
musicDrift = drift;
if (Mathf.Abs((float)drift) > 0.05)
{
Debug.LogWarningFormat("Music drift of {0} detected, resyncing!", musicDrift);
audioDspStartTime += musicDrift;
}
}
private void UpdateLinearRegression(float currentGameTime, double currentDspTime)
{
if (xValuesL.Count > 3000)
{
xValuesL.RemoveRange(0, 2000);
yValuesL.RemoveRange(0, 2000);
}
xValuesL.Add((double)currentGameTime);
var xVals = xValuesL.ToArray();
yValuesL.Add((double)currentDspTime);
var yVals = yValuesL.ToArray();
if (xVals.Length != yVals.Length)
{
throw new Exception("Input values should be with the same length.");
}
double sumOfX = 0;
double sumOfY = 0;
double sumOfXSq = 0;
double sumOfYSq = 0;
double sumCodeviates = 0;
for (var i = 0; i < xVals.Length; i++)
{
var x = xVals[i];
var y = yVals[i];
sumCodeviates += x * y;
sumOfX += x;
sumOfY += y;
sumOfXSq += x * x;
sumOfYSq += y * y;
}
var count = xVals.Length;
var ssX = sumOfXSq - ((sumOfX * sumOfX) / count);
var ssY = sumOfYSq - ((sumOfY * sumOfY) / count);
var rNumerator = (count * sumCodeviates) - (sumOfX * sumOfY);
var rDenom = (count * sumOfXSq - (sumOfX * sumOfX)) * (count * sumOfYSq - (sumOfY * sumOfY));
var sCo = sumCodeviates - ((sumOfX * sumOfY) / count);
var meanX = sumOfX / count;
var meanY = sumOfY / count;
var dblR = rNumerator / Math.Sqrt(rDenom);
// coeff1 = dblR * dblR;
coeff2 = meanY - ((sCo / ssX) * meanX);
coeff1 = sCo / ssX;
}
}
}

11
Assets/Scripts/AudioDspTimeKeeper.cs.meta
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12
Assets/Scripts/Util/Audio.cs
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using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;
namespace HeavenStudio.Util
{
public class Audio
{
}
}

11
Assets/Scripts/Util/Audio.cs.meta
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21
Assets/Scripts/WTF.cs
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using UnityEngine;
// this is a script for testing
using HeavenStudio.Editor;
namespace HeavenStudio.Tests
{
public class WTF : MonoBehaviour
{
public GameObject test;
private void Update()
{
if (Input.GetKeyDown(KeyCode.Z))
{
GetComponent<CommandManager>().Execute(new TestCommand(test, new Vector3(Random.Range(-8f, 8f), Random.Range(-6f, 6f))));
}
}
}
}

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Assets/Scripts/WTF.cs.meta
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