private void AddedAttacksList_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            ListBox listBox = (ListBox)sender;

            TargetAttacks.RemoveAt(listBox.SelectedIndex);
            listBox.Items.RemoveAt(listBox.SelectedIndex);
            ListChanged();
        }
        private void AvailableAttacksList_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            ListBox listBox = (ListBox)sender;

            Attack attack = CreateMapPrompt.Map.StoredAttacks[listBox.SelectedIndex];

            TargetAttacks.Add(attack);
            AddedAttacksList.Items.Add(attack);
            ListChanged();
        }