shell脚本编写的俄罗斯方块游戏代码

                ((t = iTrayLeft + 1 + 2 * (boxCurX + ${boxCur[$j + 1]})))
                #33[y;xH, 光标到(x, y)处
                s=$s"33[${i};${t}H${sBox}"
        done
        s=$s"33[0m"
        echo -n $s
}

 
#更新新的方块
function RandomBox()
{
        local i j t

        #更新当前移动的方块
        iBoxCurType=${iBoxNewType}
        iBoxCurRotate=${iBoxNewRotate}
        cBoxCur=${cBoxNew}
        for ((j = 0; j < ${#boxNew[@]}; j++))
        do
                boxCur[$j]=${boxNew[$j]}
        done

 
        #显示当前移动的方块
        if (( ${#boxCur[@]} == 8 ))
        then
                #计算当前方块该从顶端哪一行"冒"出来
                for ((j = 0, t = 4; j < 8; j += 2))
                do
                        if ((${boxCur[$j]} < t)); then t=${boxCur[$j]}; fi
                done
                ((boxCurY = -t))
                for ((j = 1, i = -4, t = 20; j < 8; j += 2))
                do
                        if ((${boxCur[$j]} > i)); then i=${boxCur[$j]}; fi
                        if ((${boxCur[$j]} < t)); then t=${boxCur[$j]}; fi
                done
                ((boxCurX = (iTrayWidth - 1 - i - t) / 2))