LowPassFilter for unity in c#

LowPassFilter.cs

using UnityEngine;

/// <summary>
/// TODO generic-like?
/// -Warning- use Time.deltaTime
/// </summary>
public class LowPassFilter {
	readonly float _rc;
	float _lastValue;
	public float Value { get; private set; }
	public float Next(float value) {
		Value = _lastValue + A() * (value - _lastValue);
		_lastValue = Value;
		return Value;
	}
	float A() { return Time.unscaledDeltaTime / (_rc + Time.unscaledDeltaTime); }
	public LowPassFilter(float rc) { _rc = rc; }
}