protected virtual void Subscribe(AElementData elementData) {
_subscribers.Add(elementData, new List<IDisposable>());
IList<IDisposable> anElementsSubscriptions = _subscribers[elementData];
anElementsSubscriptions.Add(elementData.SubscribeToPropertyChanged<AElementData, float>(ed => ed.CurrentHitPoints, OnElementCurrentHitPointsChanged));
anElementsSubscriptions.Add(elementData.SubscribeToPropertyChanged<AElementData, float>(ed => ed.MaxHitPoints, OnElementMaxHitPointsChanged));
anElementsSubscriptions.Add(elementData.SubscribeToPropertyChanged<AElementData, CombatStrength>(ed => ed.DefensiveStrength, OnElementDefensiveStrengthChanged));
anElementsSubscriptions.Add(elementData.SubscribeToPropertyChanged<AElementData, CombatStrength>(ed => ed.OffensiveStrength, OnElementOffensiveStrengthChanged));
anElementsSubscriptions.Add(elementData.SubscribeToPropertyChanged<AElementData, float>(ed => ed.MaxWeaponsRange, OnElementMaxWeaponsRangeChanged));
anElementsSubscriptions.Add(elementData.SubscribeToPropertyChanged<AElementData, float>(ed => ed.MaxSensorRange, OnElementMaxSensorRangeChanged));
}
