/// <summary>
/// Handles <see cref="BoardCell"/>'s DragDrop event
/// </summary>
private void OnCellDragDrop(object sender, DragEventArgs e)
{
var cell = (BoardCell)sender;
if (e.Data.GetDataPresent(typeof(Ship)))
{
if (!CanPlaceShip(_draggedShip, cell.X, cell.Y))
{
return;
}
var ship = _draggedShip.Source;
_ships.Remove(ship);
var rect = ship.GetShipRegion();
RedrawRegion(rect);
ship.Orientation = _draggedShip.Orientation;
AddShip(ship, cell.X, cell.Y);
_draggedShip = null;
}
else
{
e.Effect = DragDropEffects.None;
}
}
public static DraggableShip From(Ship ship)
{
var draggableShip = new DraggableShip(ship.Length)
{
X = ship.X,
Y = ship.Y,
Orientation = ship.Orientation,
Source = ship
};
return(draggableShip);
}
/// <summary>
/// Handles <see cref="BoardCell"/>'s MouseDown event and initiates ship drag'n'drop
/// </summary>
private void OnCellMouseDown(object sender, MouseEventArgs e)
{
if (Mode == BoardMode.Game || !_drawShips)
{
return;
}
var cell = (BoardCell)sender;
var ship = GetShipAt(cell.X, cell.Y);
if (ship == null)
{
return;
}
_draggedShip = DraggableShip.From(ship);
cell.DoDragDrop(ship, DragDropEffects.Copy | DragDropEffects.Move);
}