/// <summary>
/// <para>
/// Method used to command a creature to begin defending against a specific
/// target creature. You can only defend against one creature at a time,
/// so only the final call to BeginDefending will actually be used
/// in the upcoming turn.
/// </para>
/// <para>
/// Once your creature has finished defending, the DefendCompleted event will
/// be fired and your event handler will be called if you provided one. You
/// can use this event to determine the results of your defense.
/// </para>
/// </summary>
/// <param name="targetAnimal">
/// The AnimalState that represents the animal you want to defend against.
/// </param>
/// <exception cref="System.ArgumentNullException">
/// Thrown if the targetAnimal parameter is null.
/// </exception>
public void BeginDefending(AnimalState targetAnimal)
{
if (targetAnimal == null)
{
throw new ArgumentNullException("targetAnimal", "The argument 'targetAnimal' cannot be null");
}
var actionID = GetNextActionID();
var action = new DefendAction(ID, actionID, targetAnimal);
lock (PendingActions)
{
PendingActions.SetDefendAction(action);
InProgressActions.SetDefendAction(action);
}
}
///<summary>
///</summary>
///<param name="defendAction"></param>
///<exception cref="ApplicationException"></exception>
public void SetDefendAction(DefendAction defendAction)
{
if (IsImmutable)
{
throw new ApplicationException("PendingActions must be mutable to modify actions.");
}
DefendAction = defendAction;
}