private void ProcessUnderlyingItem(TetrisGame game, TetrisGame.AddToUnderlyingEventArgs e) // 处理道具下落时的效果
{
if (game.Block is TonItemBlock)
{
var j = game.Block.RPos;
for (; j < e.block.RPos + e.block.Width; j++)
{
for (var i = 0; i < game.Block.LPos; i++)
{
game.UnderLying[i, j] = null;
}
}
game.ClearBlock();
}
if (game.Block is ItemBlock)
{
game.ClearBlock();
}
}