shell之游戏脚本

http://bbs.chinaunix.net/thread-3580033-1-1.html　　shell游戏收集贴    

#!/bin/bash   

      

    # Tetris Game   

      

    #APP declaration   

    APP_NAME="${0##*[\\/]}"  

    APP_VERSION="1.0"  

      

      

    #颜色定义   

    cRed=1  

    cGreen=2  

    cYellow=3  

    cBlue=4  

    cFuchsia=5  

    cCyan=6  

    cWhite=7  

    colorTable=($cRed $cGreen $cYellow $cBlue $cFuchsia $cCyan $cWhite)   

      

    #位置和大小   

    iLeft=3  

    iTop=2  

    ((iTrayLeft = iLeft + 2))   

    ((iTrayTop = iTop + 1))   

    ((iTrayWidth = 10))   

    ((iTrayHeight = 15))   

      

    #颜色设置   

    cBorder=$cGreen   

    cScore=$cFuchsia   

    cScoreValue=$cCyan   

      

    #控制信号   

    #改游戏使用两个进程，一个用于接收输入，一个用于游戏流程和显示界面;   

    #当前者接收到上下左右等按键时，通过向后者发送signal的方式通知后者。   

    sigRotate=25  

    sigLeft=26  

    sigRight=27  

    sigDown=28  

    sigAllDown=29  

    sigExit=30  

      

    #七中不同的方块的定义   

    #通过旋转，每种方块的显示的样式可能有几种   

    box0=(0 0 0 1 1 0 1 1)   

    box1=(0 2 1 2 2 2 3 2 1 0 1 1 1 2 1 3)   

    box2=(0 0 0 1 1 1 1 2 0 1 1 0 1 1 2 0)   

    box3=(0 1 0 2 1 0 1 1 0 0 1 0 1 1 2 1)   

    box4=(0 1 0 2 1 1 2 1 1 0 1 1 1 2 2 2 0 1 1 1 2 0 2 1 0 0 1 0 1 1 1 2)   

    box5=(0 1 1 1 2 1 2 2 1 0 1 1 1 2 2 0 0 0 0 1 1 1 2 1 0 2 1 0 1 1 1 2)   

    box6=(0 1 1 1 1 2 2 1 1 0 1 1 1 2 2 1 0 1 1 0 1 1 2 1 0 1 1 0 1 1 1 2)   

    #所有其中方块的定义都放到box变量中   

    box=(${box0[@]} ${box1[@]} ${box2[@]} ${box3[@]} ${box4[@]} ${box5[@]} ${box6[@]})   

    #各种方块旋转后可能的样式数目   

    countBox=(1 2 2 2 4 4 4)   

    #各种方块再box数组中的偏移   

    offsetBox=(0 1 3 5 7 11 15)   

      

    #每提高一个速度级需要积累的分数   

    iScoreEachLevel=50        #be greater than 7  

      

    #运行时数据   

    sig=0                #接收到的signal   

    iScore=0        #总分   

    iLevel=0        #速度级   

    boxNew=()        #新下落的方块的位置定义   

    cBoxNew=0        #新下落的方块的颜色   

    iBoxNewType=0        #新下落的方块的种类   

    iBoxNewRotate=0        #新下落的方块的旋转角度   

    boxCur=()        #当前方块的位置定义   

    cBoxCur=0        #当前方块的颜色   

    iBoxCurType=0        #当前方块的种类   

    iBoxCurRotate=0        #当前方块的旋转角度   

    boxCurX=-1        #当前方块的x坐标位置   

    boxCurY=-1        #当前方块的y坐标位置   

    iMap=()                #背景方块图表   

      

    #初始化所有背景方块为-1, 表示没有方块   

    for ((i = 0; i < iTrayHeight * iTrayWidth; i++)); do iMap[$i]=-1; done   

      

      

    #接收输入的进程的主函数   

    function RunAsKeyReceiver()   

    {   

            local pidDisplayer key aKey sig cESC sTTY   

      

            pidDisplayer=$1  

            aKey=(0 0 0)   

      

            cESC=`echo -ne "\033"`   

            cSpace=`echo -ne "\040"`   

      

            #保存终端属性。在read -s读取终端键时，终端的属性会被暂时改变。   

            #如果在read -s时程序被不幸杀掉，可能会导致终端混乱，   

            #需要在程序退出时恢复终端属性。   

            sTTY=`stty -g`   

      

            #捕捉退出信号   

            trap "MyExit;" INT TERM   

            trap "MyExitNoSub;" $sigExit   

      

            #隐藏光标   

            echo -ne "\033[?25l"  

      

      

            while :   

            do  

                    #读取输入。注-s不回显，-n读到一个字符立即返回   

                    read -s -n 1 key   

      

                    aKey[0]=${aKey[1]}   

                    aKey[1]=${aKey[2]}   

                    aKey[2]=$key   

                    sig=0  

      

                    #判断输入了何种键   

                    if [[ $key == $cESC && ${aKey[1]} == $cESC ]]   

                    then   

                            #ESC键   

                            MyExit   

                    elif [[ ${aKey[0]} == $cESC && ${aKey[1]} == "[" ]]   

                    then   

                            if [[ $key == "A" ]]; then sig=$sigRotate        #<向上键>   

                            elif [[ $key == "B" ]]; then sig=$sigDown        #<向下键>   

                            elif [[ $key == "D" ]]; then sig=$sigLeft        #<向左键>   

                            elif [[ $key == "C" ]]; then sig=$sigRight        #<向右键>   

                            fi   

                    elif [[ $key == "W" || $key == "w" ]]; then sig=$sigRotate        #W, w   

                    elif [[ $key == "S" || $key == "s" ]]; then sig=$sigDown        #S, s   

                    elif [[ $key == "A" || $key == "a" ]]; then sig=$sigLeft        #A, a   

                    elif [[ $key == "D" || $key == "d" ]]; then sig=$sigRight        #D, d   

                    elif [[ "[$key]" == "[]" ]]; then sig=$sigAllDown        #空格键   

                    elif [[ $key == "Q" || $key == "q" ]]                        #Q, q   

                    then   

                            MyExit   

                    fi   

      

                    if [[ $sig != 0 ]]   

                    then   

                            #向另一进程发送消息   

                            kill -$sig $pidDisplayer   

                    fi   

            done   

    }   

      

    #退出前的恢复   

    function MyExitNoSub()   

    {   

            local y   

      

            #恢复终端属性   

            stty $sTTY   

            ((y = iTop + iTrayHeight + 4))   

      

            #显示光标   

            echo -e "\033[?25h\033[${y};0H"  

            exit   

    }   

      

      

    function MyExit()   

    {   

            #通知显示进程需要退出   

            kill -$sigExit $pidDisplayer   

      

            MyExitNoSub   

    }   

      

      

    #处理显示和游戏流程的主函数   

    function RunAsDisplayer()   

    {   

            local sigThis   

            InitDraw   

      

            #挂载各种信号的处理函数   

            trap "sig=$sigRotate;" $sigRotate   

            trap "sig=$sigLeft;" $sigLeft   

            trap "sig=$sigRight;" $sigRight   

            trap "sig=$sigDown;" $sigDown   

            trap "sig=$sigAllDown;" $sigAllDown   

            trap "ShowExit;" $sigExit   

      

            while :   

            do  

                    #根据当前的速度级iLevel不同，设定相应的循环的次数   

                    for ((i = 0; i < 21 - iLevel; i++))   

                    do  

                            sleep 0.02  

                            sigThis=$sig   

                            sig=0  

      

                            #根据sig变量判断是否接受到相应的信号   

                            if ((sigThis == sigRotate)); then BoxRotate;        #旋转   

                            elif ((sigThis == sigLeft)); then BoxLeft;        #左移一列   

                            elif ((sigThis == sigRight)); then BoxRight;        #右移一列   

                            elif ((sigThis == sigDown)); then BoxDown;        #下落一行   

                            elif ((sigThis == sigAllDown)); then BoxAllDown;        #下落到底   

                            fi   

                    done   

                    #kill -$sigDown $$   

                    BoxDown        #下落一行   

            done   

    }   

      

      

    #BoxMove(y, x), 测试是否可以把移动中的方块移到(x, y)的位置, 返回0则可以, 1不可以   

    function BoxMove()   

    {   

            local j i x y xTest yTest   

            yTest=$1  

            xTest=$2  

            for ((j = 0; j < 8; j += 2))   

            do  

                    ((i = j + 1))   

                    ((y = ${boxCur[$j]} + yTest))   

                    ((x = ${boxCur[$i]} + xTest))   

                    if (( y < 0 || y >= iTrayHeight || x < 0 || x >= iTrayWidth))   

                    then   

                            #撞到墙壁了   

                            return 1  

                    fi   

                    if ((${iMap[y * iTrayWidth + x]} != -1 ))   

                    then   

                            #撞到其他已经存在的方块了   

                            return 1  

                    fi   

            done   

            return 0;   

    }   

      

      

    #将当前移动中的方块放到背景方块中去,   

    #并计算新的分数和速度级。(即一次方块落到底部)   

    function Box2Map()   

    {   

            local j i x y xp yp line   

      

            #将当前移动中的方块放到背景方块中去   

            for ((j = 0; j < 8; j += 2))   

            do  

                    ((i = j + 1))   

                    ((y = ${boxCur[$j]} + boxCurY))   

                    ((x = ${boxCur[$i]} + boxCurX))   

                    ((i = y * iTrayWidth + x))   

                    iMap[$i]=$cBoxCur   

            done   

      

            #消去可被消去的行   

            line=0  

            for ((j = 0; j < iTrayWidth * iTrayHeight; j += iTrayWidth))   

            do  

                    for ((i = j + iTrayWidth - 1; i >= j; i--))   

                    do  

                            if ((${iMap[$i]} == -1)); then break; fi   

                    done   

                    if ((i >= j)); then continue; fi   

      

                    ((line++))   

                    for ((i = j - 1; i >= 0; i--))   

                    do  

                            ((x = i + iTrayWidth))   

                            iMap[$x]=${iMap[$i]}   

                    done   

                    for ((i = 0; i < iTrayWidth; i++))   

                    do  

                            iMap[$i]=-1  

                    done   

            done   

      

            if ((line == 0)); then return; fi   

      

            #根据消去的行数line计算分数和速度级   

            ((x = iLeft + iTrayWidth * 2 + 7))   

            ((y = iTop + 11))   

            ((iScore += line * 2 - 1))   

            #显示新的分数   

            echo -ne "\033[1m\033[3${cScoreValue}m\033[${y};${x}H${iScore}         "  

            if ((iScore % iScoreEachLevel < line * 2 - 1))   

            then   

                    if ((iLevel < 20))   

                    then   

                            ((iLevel++))   

                            ((y = iTop + 14))   

                            #显示新的速度级   

                            echo -ne "\033[3${cScoreValue}m\033[${y};${x}H${iLevel}        "  

                    fi   

            fi   

            echo -ne "\033[0m"  

      

      

            #重新显示背景方块   

            for ((y = 0; y < iTrayHeight; y++))   

            do  

                    ((yp = y + iTrayTop + 1))   

                    ((xp = iTrayLeft + 1))   

                    ((i = y * iTrayWidth))   

                    echo -ne "\033[${yp};${xp}H"  

                    for ((x = 0; x < iTrayWidth; x++))   

                    do  

                            ((j = i + x))   

                            if ((${iMap[$j]} == -1))   

                            then   

                                    echo -ne "  "  

                            else  

                                    echo -ne "\033[1m\033[7m\033[3${iMap[$j]}m\033[4${iMap[$j]}m[]\033[0m"  

                            fi   

                    done   

            done   

    }   

      

      

    #下落一行   

    function BoxDown()   

    {   

            local y s   

            ((y = boxCurY + 1))        #新的y坐标   

            if BoxMove $y $boxCurX        #测试是否可以下落一行   

            then   

                    s="`DrawCurBox 0`"        #将旧的方块抹去   

                    ((boxCurY = y))   

                    s="$s`DrawCurBox 1`"        #显示新的下落后方块   

                    echo -ne $s   

            else  

                    #走到这儿, 如果不能下落了   

                    Box2Map                #将当前移动中的方块贴到背景方块中   

                    RandomBox        #产生新的方块   

            fi   

    }   

      

    #左移一列   

    function BoxLeft()   

    {   

            local x s   

            ((x = boxCurX - 1))   

            if BoxMove $boxCurY $x   

            then   

                    s=`DrawCurBox 0`   

                    ((boxCurX = x))   

                    s=$s`DrawCurBox 1`   

                    echo -ne $s   

            fi   

    }   

      

    #右移一列   

    function BoxRight()   

    {   

            local x s   

            ((x = boxCurX + 1))   

            if BoxMove $boxCurY $x   

            then   

                    s=`DrawCurBox 0`   

                    ((boxCurX = x))   

                    s=$s`DrawCurBox 1`   

                    echo -ne $s   

            fi   

    }   

      

      

    #下落到底   

    function BoxAllDown()   

    {   

            local k j i x y iDown s   

            iDown=$iTrayHeight   

      

            #计算一共需要下落多少行   

            for ((j = 0; j < 8; j += 2))   

            do  

                    ((i = j + 1))   

                    ((y = ${boxCur[$j]} + boxCurY))   

                    ((x = ${boxCur[$i]} + boxCurX))   

                    for ((k = y + 1; k < iTrayHeight; k++))   

                    do  

                            ((i = k * iTrayWidth + x))   

                            if (( ${iMap[$i]} != -1)); then break; fi   

                    done   

                    ((k -= y + 1))   

                    if (( $iDown > $k )); then iDown=$k; fi   

            done   

      

            s=`DrawCurBox 0`        #将旧的方块抹去   

            ((boxCurY += iDown))   

            s=$s`DrawCurBox 1`        #显示新的下落后的方块   

            echo -ne $s   

            Box2Map                #将当前移动中的方块贴到背景方块中   

            RandomBox        #产生新的方块   

    }   

      

      

    #旋转方块   

    function BoxRotate()   

    {   

            local iCount iTestRotate boxTest j i s   

            iCount=${countBox[$iBoxCurType]}        #当前的方块经旋转可以产生的样式的数目   

      

            #计算旋转后的新的样式   

            ((iTestRotate = iBoxCurRotate + 1))   

            if ((iTestRotate >= iCount))   

            then   

                    ((iTestRotate = 0))   

            fi   

      

            #更新到新的样式, 保存老的样式(但不显示)   

            for ((j = 0, i = (${offsetBox[$iBoxCurType]} + $iTestRotate) * 8; j < 8; j++, i++))   

            do  

                    boxTest[$j]=${boxCur[$j]}   

                    boxCur[$j]=${box[$i]}   

            done   

      

            if BoxMove $boxCurY $boxCurX        #测试旋转后是否有空间放的下   

            then   

                    #抹去旧的方块   

                    for ((j = 0; j < 8; j++))   

                    do  

                            boxCur[$j]=${boxTest[$j]}   

                    done   

                    s=`DrawCurBox 0`   

      

                    #画上新的方块   

                    for ((j = 0, i = (${offsetBox[$iBoxCurType]} + $iTestRotate) * 8; j < 8; j++, i++))   

                    do  

                            boxCur[$j]=${box[$i]}   

                    done   

                    s=$s`DrawCurBox 1`   

                    echo -ne $s   

                    iBoxCurRotate=$iTestRotate   

            else  

                    #不能旋转，还是继续使用老的样式   

                    for ((j = 0; j < 8; j++))   

                    do  

                            boxCur[$j]=${boxTest[$j]}   

                    done   

            fi   

    }   

      

      

    #DrawCurBox(bDraw), 绘制当前移动中的方块, bDraw为1, 画上, bDraw为0, 抹去方块。   

    function DrawCurBox()   

    {   

            local i j t bDraw sBox s   

            bDraw=$1  

      

            s=""  

            if (( bDraw == 0 ))   

            then   

                    sBox="\040\040"  

            else  

                    sBox="[]"  

                    s=$s"\033[1m\033[7m\033[3${cBoxCur}m\033[4${cBoxCur}m"  

            fi   

      

            for ((j = 0; j < 8; j += 2))   

            do  

                    ((i = iTrayTop + 1 + ${boxCur[$j]} + boxCurY))   

                    ((t = iTrayLeft + 1 + 2 * (boxCurX + ${boxCur[$j + 1]})))   

                    #\033[y;xH, 光标到(x, y)处   

                    s=$s"\033[${i};${t}H${sBox}"  

            done   

            s=$s"\033[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))   

      

                    #显示当前移动的方块   

                    echo -ne `DrawCurBox 1`   

      

                    #如果方块一出来就没处放，Game over!   

                    if ! BoxMove $boxCurY $boxCurX   

                    then   

                            kill -$sigExit ${PPID}   

                            ShowExit   

                    fi   

            fi   

      

      

      

            #清除右边预显示的方块   

            for ((j = 0; j < 4; j++))   

            do  

                    ((i = iTop + 1 + j))   

                    ((t = iLeft + 2 * iTrayWidth + 7))   

                    echo -ne "\033[${i};${t}H        "  

            done   

      

            #随机产生新的方块   

            ((iBoxNewType = RANDOM % ${#offsetBox[@]}))   

            ((iBoxNewRotate = RANDOM % ${countBox[$iBoxNewType]}))   

            for ((j = 0, i = (${offsetBox[$iBoxNewType]} + $iBoxNewRotate) * 8; j < 8; j++, i++))   

            do  

                    boxNew[$j]=${box[$i]};   

            done   

      

            ((cBoxNew = ${colorTable[RANDOM % ${#colorTable[@]}]}))   

      

            #显示右边预显示的方块   

            echo -ne "\033[1m\033[7m\033[3${cBoxNew}m\033[4${cBoxNew}m"  

            for ((j = 0; j < 8; j += 2))   

            do  

                    ((i = iTop + 1 + ${boxNew[$j]}))   

                    ((t = iLeft + 2 * iTrayWidth + 7 + 2 * ${boxNew[$j + 1]}))   

                    echo -ne "\033[${i};${t}H[]"  

            done   

            echo -ne "\033[0m"  

    }   

      

      

    #初始绘制   

    function InitDraw()   

    {   

            clear   

            RandomBox        #随机产生方块，这时右边预显示窗口中有方快了   

            RandomBox        #再随机产生方块，右边预显示窗口中的方块被更新，原先的方块将开始下落   

            local i t1 t2 t3   

      

            #显示边框   

            echo -ne "\033[1m"  

            echo -ne "\033[3${cBorder}m\033[4${cBorder}m"  

      

            ((t2 = iLeft + 1))   

            ((t3 = iLeft + iTrayWidth * 2 + 3))   

            for ((i = 0; i < iTrayHeight; i++))   

            do  

                    ((t1 = i + iTop + 2))   

                    echo -ne "\033[${t1};${t2}H||"  

                    echo -ne "\033[${t1};${t3}H||"  

            done   

      

            ((t2 = iTop + iTrayHeight + 2))   

            for ((i = 0; i < iTrayWidth + 2; i++))   

            do  

                    ((t1 = i * 2 + iLeft + 1))   

                    echo -ne "\033[${iTrayTop};${t1}H=="  

                    echo -ne "\033[${t2};${t1}H=="  

            done   

            echo -ne "\033[0m"  

      

      

            #显示"Score"和"Level"字样   

            echo -ne "\033[1m"  

            ((t1 = iLeft + iTrayWidth * 2 + 7))   

            ((t2 = iTop + 10))   

            echo -ne "\033[3${cScore}m\033[${t2};${t1}HScore"  

            ((t2 = iTop + 11))   

            echo -ne "\033[3${cScoreValue}m\033[${t2};${t1}H${iScore}"  

            ((t2 = iTop + 13))   

            echo -ne "\033[3${cScore}m\033[${t2};${t1}HLevel"  

            ((t2 = iTop + 14))   

            echo -ne "\033[3${cScoreValue}m\033[${t2};${t1}H${iLevel}"  

            echo -ne "\033[0m"  

    }   

      

      

    #退出时显示GameOVer!   

    function ShowExit()   

    {   

            local y   

            ((y = iTrayHeight + iTrayTop + 3))   

            echo -e "\033[${y};0HGameOver!\033[0m"  

            exit   

    }   

      

      

    #显示用法.   

    function Usage()   

    {   

            cat << EOF   

    Usage: $APP_NAME   

    Start tetris game.   

      

      -h, --help              display this help and exit   

          --version           output version information and exit   
EOF

    }   

      

      

    #游戏主程序在这儿开始.   

    if [[ "$1" == "-h" || "$1" == "--help" ]]; then   

            Usage   

    elif [[ "$1" == "--version" ]]; then   

            echo "$APP_NAME $APP_VERSION"  

    elif [[ "$1" == "--show" ]]; then   

            #当发现具有参数--show时，运行显示函数   

            RunAsDisplayer   

    else  

            bash $0 --show&        #以参数--show将本程序再运行一遍   

            RunAsKeyReceiver $!        #以上一行产生的进程的进程号作为参数   

    fi  

游戏似乎有些问题，注释掉以下代码便可运行。否则报错

#显示用法.   

    function Usage   

    {   

            cat << EOF   

    Usage: $APP_NAME   

    Start tetris game.   

      

      -h, --help              display this help and exit   

          --version           output version information and exit   

    EOF   

    }   

[root@250-shiyan sed]# chmod u+x game

[root@250-shiyan sed]# ./game -h

./game: line 622: warning: here-document at line 599 delimited by end-of-file (wanted `EOF')

./game: line 623: syntax error: unexpected end of file
最后发现，这是因为结尾的EOF前后不能有空白，仅此而已。