private void CleanupBattlefield()
        {
            LinkedList <Creature> buffer = new LinkedList <Creature>();

            foreach (Creature c in lbxAttacking.Items)
            {
                if (!c.abilities.Contains <Creature.CreatureAbilities>(Creature.CreatureAbilities.Vigilance))
                {
                    c.Tapped = true;
                }
                buffer.AddLast(c);
            }
            foreach (Creature c in lbxDefending.Items)
            {
                buffer.AddLast(c);
            }
            lbxAttacking.Items.Clear();
            lbxDefending.Items.Clear();
            while (buffer.Count > 0)
            {
                Creature c = buffer.First.Value;
                declareDamage(c);
                buffer.RemoveFirst();
                if (c.Health <= 0)
                {
                    tbxAction.AppendText(String.Format("{0} goes to the graveyard.\n", c.ToString()));
                    c.Graveyard.Add(c);
                }
                else
                {
                    tbxAction.AppendText(String.Format("{0} needs attention\n", c.ToString()));
                    c.Field.Add(c);
                }
            }
        }
        private void CleanupBattlefield()
        {
            LinkedList <Creature> buffer = new LinkedList <Creature>();

            foreach (Creature c in lbxAttacking.Items)
            {
                buffer.AddLast(c);
            }
            foreach (Creature c in lbxDefending.Items)
            {
                buffer.AddLast(c);
            }
            lbxAttacking.Items.Clear();
            lbxDefending.Items.Clear();
            while (buffer.Count > 0)
            {
                Creature c = buffer.First.Value;
                buffer.RemoveFirst();
                if (c.Health <= 0)
                {
                    tbxAction.AppendText(String.Format("{0} goes to the graveyard.\n", c.ToString()));
                    c.Graveyard.Add(c);
                }
                else
                {
                    tbxAction.AppendText(String.Format("{0} goes back to the field.\n", c.ToString()));
                    c.Field.Add(c);
                }
            }
        }