/// <summary>
 /// 生成新的砖块,并重新设定坐标
 /// </summary>
 private void NextBlockStart()
 {
     // 清除当前砖块
     if (gameSurface.Children.Contains(Game.CurrentBlocks))
     {
         gameSurface.Children.Remove(Game.CurrentBlocks);
     }
     // 将当前砖块散装装入背景
     foreach (BlockControl blockControl in Game.CurrentBlocks.GetBlocksList())
     {
         Point blockPoint = blockControl.TranslatePoint(new Point(0, 0), Game.CurrentBlocks.blockShowGrid);
         if (Game.currentY < 0)
         {
             continue;
         }
         Game.backGround[(int)(blockPoint.Y / 16) + Game.currentY, (int)(blockPoint.X / 16) + Game.currentX] = (int)(blockControl.BlocksShape);
         BlockControl newBlockControl = new BlockControl(blockControl.BlocksShape);
         newBlockControl.Margin = new Thickness(blockPoint.X + Game.currentX * 16, blockPoint.Y + Game.currentY * 16, 0, 0);
         newBlockControl.HorizontalAlignment = HorizontalAlignment.Left;
         newBlockControl.VerticalAlignment   = VerticalAlignment.Top;
         gameSurface.Children.Add(newBlockControl);
     }
     Game.currentX      = 5;
     Game.currentY      = -4;
     Game.CurrentBlocks = Game.GetCurrentBlocks();
     Game.NextBlocks    = Game.GetNextBlocks();
 }