private void RemoveExercise(Servant servant)
{
IMovable unit = servant.mUnit;
Debug.Assert(mAiServants.Contains(servant));
RemoveExercise(unit);
}
public void AddExercise(IMovable unit, IExercise exercise)
{
Debug.Assert(mCurrentIdleUnits.Contains(unit));
Debug.Assert(mUnitToServant.ContainsKey(unit));
Debug.Assert(mUnitToServant[unit] == null);
Servant servant = new Servant(unit, exercise);
servant.RegisterAtExercise();
mAiServants.Add(servant);
mUnitToServant[unit] = servant;
mCurrentIdleUnits.Remove(unit);
}