/// <summary>
/// Determines if an object has a specified ability.
/// </summary>
/// <param name="obj"></param>
/// <param name="abilityName"></param>
/// <returns></returns>
public static bool HasAbility(this IAbilityObject obj, string abilityName, bool includeShared = true)
{
IEnumerable <Ability> abils;
if (includeShared && obj is IOwnableAbilityObject)
{
abils = obj.UnstackedAbilities(true).Union(obj.SharedAbilities());
}
else
{
abils = obj.UnstackedAbilities(true);
}
return(abils.Any(abil => abil.Rule != null && abil.Rule.Matches(abilityName)));
}
/// <summary>
/// All abilities belonging to an object.
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public static IEnumerable <Ability> Abilities(this IAbilityObject obj, Func <IAbilityObject, bool> sourceFilter = null)
{
if (obj == null)
{
return(Enumerable.Empty <Ability>());
}
if (sourceFilter == null && Galaxy.Current != null && Galaxy.Current.IsAbilityCacheEnabled)
{
// use the ability cache
if (Galaxy.Current.AbilityCache[obj] == null)
{
Galaxy.Current.AbilityCache[obj] = obj.UnstackedAbilities(true, sourceFilter).Stack(obj).ToArray();
}
return(Galaxy.Current.AbilityCache[obj]);
}
return(obj.UnstackedAbilities(true, sourceFilter).Stack(obj));
}
public static ILookup <Ability, Ability> AbilityTree(this IAbilityObject obj, Func <IAbilityObject, bool> sourceFilter = null)
{
return(obj.UnstackedAbilities(true, sourceFilter).StackToTree(obj));
}