public TileUI(MapEditorController controller, CellComponent observable)
        {
            InitializeComponent();
            this.controller = controller;
            this.cell = observable;

            // Initialize Image
            if (observable != null)
            {
                // Register for TileChange event.
                observable.TileChangedEvent += this.ChangeTile;
                observable.UnitAddedEvent += this.UnitAddedToCell;
                observable.UnitRemovedEvent += this.UnitRemovedFromCell;

                TileFactory tf = TileFactory.Instance;
                this.Image = tf.getBitmapImproved(observable.GetTile());

                foreach (ModelComponent m in observable.EntitiesContainedWithin)
                {
                    if (m is UnitComponent)
                    {
                        UnitUI unitUI = new UnitUI(controller, m as UnitComponent);
                        Controls.Add(unitUI);
                        unitUI.MouseClick += TileUI_MouseDown;
                    }
                }
            }

            AllowDrop = true;
        }
        private CellComponent findEmptyNeighborCell(ZRTSModel.GameModel.GameModel model)
        {
            CellComponent insertCell = null;
            int           width      = model.GetScenario().GetGameWorld().GetMap().GetWidth();
            int           height     = model.GetScenario().GetGameWorld().GetMap().GetWidth();

            foreach (CellComponent cell in building.CellsContainedWithin)
            {
                int x = cell.X;
                int y = cell.Y;

                if (x < width - 1)
                {
                    CellComponent c = model.GetScenario().GetGameWorld().GetMap().GetCellAt(x + 1, y);
                    if (c.GetTile().Passable() && c.EntitiesContainedWithin.Count == 0)
                    {
                        insertCell = c;
                        break;
                    }

                    if (y < height - 1)
                    {
                        c = model.GetScenario().GetGameWorld().GetMap().GetCellAt(x + 1, y + 1);
                        if (c.GetTile().Passable() && c.EntitiesContainedWithin.Count == 0)
                        {
                            insertCell = c;
                            break;
                        }
                    }

                    if (y > 0)
                    {
                        c = model.GetScenario().GetGameWorld().GetMap().GetCellAt(x + 1, y);
                        if (c.GetTile().Passable() && c.EntitiesContainedWithin.Count == 0)
                        {
                            insertCell = c;
                            break;
                        }
                    }
                }

                if (x > 0)
                {
                    CellComponent c = model.GetScenario().GetGameWorld().GetMap().GetCellAt(x - 1, y);
                    if (c.GetTile().Passable() && c.EntitiesContainedWithin.Count == 0)
                    {
                        insertCell = c;
                        break;
                    }

                    if (y < height - 1)
                    {
                        c = model.GetScenario().GetGameWorld().GetMap().GetCellAt(x - 1, y + 1);
                        if (c.GetTile().Passable() && c.EntitiesContainedWithin.Count == 0)
                        {
                            insertCell = c;
                            break;
                        }
                    }

                    if (y > 0)
                    {
                        c = model.GetScenario().GetGameWorld().GetMap().GetCellAt(x - 1, y);
                        if (c.GetTile().Passable() && c.EntitiesContainedWithin.Count == 0)
                        {
                            insertCell = c;
                            break;
                        }
                    }
                }
            }

            return(insertCell);
        }