public static class MyHydrogenEngineExtensions
{
	private static Dictionary<MyHydrogenEngine, float> _m_lastOutput = new Dictionary<MyHydrogenEngine, float>();
	private static MethodInfo _markforupdate;

	static MyHydrogenEngineExtensions()
	{
		_markforupdate = AccessTools.DeclaredMethod(typeof(MyGasFueledPowerProducer), "MarkForUpdate");
	}



	// When testing, this was run from MyGasFueledPowerProducer.UpdateBeforeSimulation. I'm guessing we'll want it in MyHydrogenEngine.
	public static void UpdateSoundState(this MyHydrogenEngine _this)
	{
		if (!MySandboxGame.IsGameReady || _this.m_soundEmitter == null || !_this.IsWorking)
		{
			return;
		}

		if (_this.m_soundEmitter.Sound != null && _this.m_soundEmitter.Sound.IsPlaying)
		{
			if (!_m_lastOutput.ContainsKey(_this))
				_m_lastOutput.Add(_this, 0f);
			float m_lastOutput = _m_lastOutput[_this]; // This can be removed when m_lastOutput is an instance field

			float usePercentage = _this.SourceComp.CurrentOutput / _this.SourceComp.MaxOutput;
			if (true || usePercentage != m_lastOutput)
			{
				float mul = (usePercentage > m_lastOutput ? .1f : .02f);

				float rpm = m_lastOutput + (usePercentage - m_lastOutput) * mul; // These two lines can be merged by assigning directly to m_lastOutput
				_m_lastOutput[_this] = rpm;

				float semitones = 8f * rpm - 6f;
				_this.m_soundEmitter.Sound.FrequencyRatio = MyAudio.Static.SemitonesToFrequencyRatio(semitones);

				_this.m_soundEmitter.Sound.VolumeMultiplier = .8f + rpm;

				_this.MarkForUpdate();
			}
		}
	}


	// Wrapper for private method
	private static void MarkForUpdate(this MyGasFueledPowerProducer _this)
	{
		_markforupdate.Invoke(_this, null);
	}
}