/// <summary>
/// Begins subtracting from the value each frame.
/// </summary>
public void BeginAccumulatingBackwards()
{
_accumulatorState = AccumulatorState.Backwards;
}
/// <summary>
/// Stops modifying the value each frame.
/// </summary>
public void StopAccumulating()
{
_accumulatorState = AccumulatorState.None;
}
/// <summary>
/// Begins adding to the value each frame.
/// </summary>
public void BeginAccumulatingForwards()
{
_accumulatorState = AccumulatorState.Forwards;
}