public void AutoDown()
{
if (block.CanMoveDown(CANVAS, ROW, COLUMN))
{
t_fall.Enabled = false;
pre_block = block;
PaintBlock(pre_block, false); // 擦除上次一画的block
block.MoveDown();
PaintBlock(block, true); // 画新的
t_fall.Enabled = true;
if (t_fall.Interval == 1)
{
t_fall.Interval = INTERVAL;
}
}
else
{
// 不能下移,说明到达最终位置，赋值1；检查能否消除行；新建block
completed = true;
PaintBlock(block, true); // 赋值1
completed = false;
EraseLine(); // 消除行
block = NewBlock(); // 新建block
pre_block = block;
t_fall.Interval = 1;
}
}
