Tower defence game making tips anyone?

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Diagnostics;using System.IO;namespace EnemyMakerTD1
{publicpartialclass Form1 : Form
    {public Form1()
        {
            InitializeComponent();
        }
    }#region Enemy classpublicclass Enemy
    {public EnemyType TypeOfEnemy;publicdouble x = 0;publicdouble y = 0;public TurnCompleted CompletedTurn = TurnCompleted.none;public Enemy(EnemyType etype)
        {
            TypeOfEnemy = etype;
        }publicvoid MoveIt()
        {#region noneif (CompletedTurn == TurnCompleted.none)
            {if (x == 50 && y == 300)//Not too sure about the first turn's coordinates... Just guessing
                {
                }else
                {
                }
            }#endregion#region one#endregion#region two#endregion#region three#endregion#region four#endregion#region five#endregion#region six#endregion#region seven#endregion#region eight#endregion#region nine#endregion#region ten#endregion#region eleven#endregion#region twelve#endregion#region thirteen#endregion
        }
    }#endregion#region enumspublicenum EnemyType
    {
        basic,
        duo,
        tri,
        quad,
        duotri,
        quadduo,
        fivehit,
        tenhit,
        twentyhit,
        fiftyhit,
        quadtenhit
    }publicenum TurnCompleted
    {
        none, one, two, three, four, five,
        six, seven, eight, nine, ten, eleven, twelve, thirteen
    }#endregion
}