/// <summary>
/// Render out the GammaWorldCharacter's powers.
/// </summary>
/// <param name="GammaWorldCharacter">
/// The <see cref="Character"/> to render.
/// </param>
/// <param name="predicate">
/// Only render the power if the given predicate matches.
/// </param>
/// <param name="resourceDictionary">
/// A <see cref="ResourceDictionary"/> containing styles.
/// </param>
/// <exception cref="ArgumentNullException">
/// No argument can be null.
/// </exception>
private IEnumerable<PowerEntry> ConstructPowers(Character GammaWorldCharacter,
Predicate<Power> predicate, ResourceDictionary resourceDictionary)
{
if (GammaWorldCharacter == null)
{
throw new ArgumentNullException("GammaWorldCharacter");
}
if (predicate == null)
{
throw new ArgumentNullException("predicate");
}
if (resourceDictionary == null)
{
throw new ArgumentNullException("resourceDictionary");
}
List<Power> powers;
List<Power> displayedPowers;
powers = new List<Power>();
powers.AddRange(GammaWorldCharacter.GetUsablePowers());
displayedPowers = new List<Power>();
foreach (Power power in powers)
{
if (!displayedPowers.Contains(power))
{
if (predicate(power))
{
if (power is AttackPower)
{
yield return ConstructAttackPowerEntry(GammaWorldCharacter, (AttackPower)power, resourceDictionary);
}
else if (power is UtilityPower)
{
yield return ConstructUtilityPowerEntry(GammaWorldCharacter, (UtilityPower)power, resourceDictionary);
}
displayedPowers.Add(power);
}
}
}
}
