private void AButton_Click(object sender, System.EventArgs e)
{
int r, c, d; //行，列 200*200像素
int dd = this.Num; //维度;
int ww = this.W; //宽度
r = this.Top / ww; //对应数组中的行索引
c = this.Left / ww; //对应数组中的列索引
d = Direction(r, c, dd); //确定能往哪个方向移动
switch (d)
{
case 0: //left
this.Left = this.Left - ww; //向左移动
SetA(r, c - 1, GetA(r, c, dd), dd); //更新数组
SetA(r, c, 0, dd); //更新数组
TotalStep += 1;
break;
case 1: //up
this.Top = this.Top - ww;
SetA(r - 1, c, GetA(r, c, dd), dd);
SetA(r, c, 0, dd);
TotalStep += 1;
break;
case 2: //right
this.Left = this.Left + ww;
SetA(r, c + 1, GetA(r, c, dd), dd);
SetA(r, c, 0, dd);
TotalStep += 1;
break;
case 3: //down
this.Top = this.Top + ww;
SetA(r + 1, c, GetA(r, c, dd), dd);
SetA(r, c, 0, dd);
TotalStep += 1;
break;
}
if (Success(dd))
{
MessageBox.Show("拼图成功！!！\n" + "总计：" + TotalStep.ToString() + "步", "恭喜！");
//把最后一块补上去
mButton[dd * dd - 1].Location = new Point(600 - ww, 600 - ww);
SetA(dd - 1, dd - 1, dd * dd, dd);
}
}
void SetStepLbls(int s)
{
lbl_step.Content = CurrStep.ToString() + "/" + TotalStep.ToString();
lbl_desc.Text = StepDescString[s - 1];
}