private void playerFieldArea_MouseMove(object sender, MouseEventArgs e)
{
if (selectedShip_dockNumber == 0)
{
return;
}
Cell targetCell = GetTargetCell(playerFieldArea, e.X, e.Y);
if (targetCell == null)
{
return;
}
playerField.HighlightPlacement(selectedShip_dockNumber, targetCell, placeVertically);
DrawPlayerField();
}