OpenBve.TrainManager.ApplyReverser C# (CSharp) Method

		internal static void ApplyReverser(Train Train, int Value, bool Relative)
		{
			int a = Train.Specs.CurrentReverser.Driver;
			int r = Relative ? a + Value : Value;
			if (r < -1) r = -1;
			if (r > 1) r = 1;
			if (a != r)
			{
				Train.Specs.CurrentReverser.Driver = r;
				if (Train.Plugin != null)
				{
					Train.Plugin.UpdateReverser();
				}
				Game.AddBlackBoxEntry(Game.BlackBoxEventToken.None);
				// sound
				if (a == 0 & r != 0)
				{
					Sounds.SoundBuffer buffer = Train.Cars[Train.DriverCar].Sounds.ReverserOn.Buffer;
					if (buffer == null) return;
					OpenBveApi.Math.Vector3 pos = Train.Cars[Train.DriverCar].Sounds.ReverserOn.Position;
					Sounds.PlaySound(buffer, 1.0, 1.0, pos, Train, Train.DriverCar, false);
				}
				else if (a != 0 & r == 0)
				{
					Sounds.SoundBuffer buffer = Train.Cars[Train.DriverCar].Sounds.ReverserOff.Buffer;
					if (buffer == null) return;
					OpenBveApi.Math.Vector3 pos = Train.Cars[Train.DriverCar].Sounds.ReverserOff.Position;
					Sounds.PlaySound(buffer, 1.0, 1.0, pos, Train, Train.DriverCar, false);
				}
			}
		}
	}

 /// <summary>
 /// set reverser
 /// </summary>
 static public void SetReverser(int value)
 {
     try
     {
         TrainManager.ApplyReverser(nowControl, value, false);
         return;
     }
     catch (Exception ex) { }
 }