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2012年(14)

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2012-02-04 11:12:40

 
这个同样强大~~~~~~
 
 
 
把注释加进去了,可能不是很详尽,
只希望能把问题表现的清楚一点

感谢各位兄弟的捧场,
属于旧瓶装新酒了,呵呵
如果你的终端可以显示出颜色,效果会好点

运行于GNU bash, version 2.05a.0(1)-release (i686-pc-linux-gnu)

---------------------------------------------------
果然在新的ubuntu下不能运行了,需要将类似\33的地方改成\033,
感谢网友thinux和guotao_buaa帮忙修改,已经将新的代码补入。
 
  1. #!/bin/bash

  2. # Tetris Game
  3. # 10.21.2003 xhchen<[email]xhchen@winbond.com.tw[/email]>

  4. #APP declaration
  5. APP_NAME="${0##*[\\/]}"
  6. APP_VERSION="1.0"


  7. #颜色定义
  8. cRed=1
  9. cGreen=2
  10. cYellow=3
  11. cBlue=4
  12. cFuchsia=5
  13. cCyan=6
  14. cWhite=7
  15. colorTable=($cRed $cGreen $cYellow $cBlue $cFuchsia $cCyan $cWhite)

  16. #位置和大小
  17. iLeft=3
  18. iTop=2
  19. ((iTrayLeft = iLeft + 2))
  20. ((iTrayTop = iTop + 1))
  21. ((iTrayWidth = 10))
  22. ((iTrayHeight = 15))

  23. #颜色设置
  24. cBorder=$cGreen
  25. cScore=$cFuchsia
  26. cScoreValue=$cCyan

  27. #控制信号
  28. #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;
  29. #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。
  30. sigRotate=25
  31. sigLeft=26
  32. sigRight=27
  33. sigDown=28
  34. sigAllDown=29
  35. sigExit=30

  36. #七中不同的方块的定义
  37. #通过旋转,每种方块的显示的样式可能有几种
  38. box0=(0 0 0 1 1 0 1 1)
  39. box1=(0 2 1 2 2 2 3 2 1 0 1 1 1 2 1 3)
  40. box2=(0 0 0 1 1 1 1 2 0 1 1 0 1 1 2 0)
  41. box3=(0 1 0 2 1 0 1 1 0 0 1 0 1 1 2 1)
  42. 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)
  43. 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)
  44. 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)
  45. #所有其中方块的定义都放到box变量中
  46. box=(${box0[@]} ${box1[@]} ${box2[@]} ${box3[@]} ${box4[@]} ${box5[@]} ${box6[@]})
  47. #各种方块旋转后可能的样式数目
  48. countBox=(1 2 2 2 4 4 4)
  49. #各种方块再box数组中的偏移
  50. offsetBox=(0 1 3 5 7 11 15)

  51. #每提高一个速度级需要积累的分数
  52. iScoreEachLevel=50 #be greater than 7

  53. #运行时数据
  54. sig=0 #接收到的signal
  55. iScore=0 #总分
  56. iLevel=0 #速度级
  57. boxNew=() #新下落的方块的位置定义
  58. cBoxNew=0 #新下落的方块的颜色
  59. iBoxNewType=0 #新下落的方块的种类
  60. iBoxNewRotate=0 #新下落的方块的旋转角度
  61. boxCur=() #当前方块的位置定义
  62. cBoxCur=0 #当前方块的颜色
  63. iBoxCurType=0 #当前方块的种类
  64. iBoxCurRotate=0 #当前方块的旋转角度
  65. boxCurX=-1 #当前方块的x坐标位置
  66. boxCurY=-1 #当前方块的y坐标位置
  67. iMap=() #背景方块图表

  68. #初始化所有背景方块为-1, 表示没有方块
  69. for ((i = 0; i < iTrayHeight * iTrayWidth; i++)); do iMap[$i]=-1; done


  70. #接收输入的进程的主函数
  71. function RunAsKeyReceiver()
  72. {
  73.         local pidDisplayer key aKey sig cESC sTTY

  74.         pidDisplayer=$1
  75.         aKey=(0 0 0)

  76.         cESC=`echo -ne "\033"`
  77.         cSpace=`echo -ne "\040"`

  78.         #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。
  79.         #如果在read -s时程序被不幸杀掉,可能会导致终端混乱,
  80.         #需要在程序退出时恢复终端属性。
  81.         sTTY=`stty -g`

  82.         #捕捉退出信号
  83.         trap "MyExit;" INT TERM
  84.         trap "MyExitNoSub;" $sigExit

  85.         #隐藏光标
  86.         echo -ne "\033[?25l"


  87.         while :
  88.         do
  89.                 #读取输入。注-s不回显,-n读到一个字符立即返回
  90.                 read -s -n 1 key

  91.                 aKey[0]=${aKey[1]}
  92.                 aKey[1]=${aKey[2]}
  93.                 aKey[2]=$key
  94.                 sig=0

  95.                 #判断输入了何种键
  96.                 if [[ $key == $cESC && ${aKey[1]} == $cESC ]]
  97.                 then
  98.                         #ESC键
  99.                         MyExit
  100.                 elif [[ ${aKey[0]} == $cESC && ${aKey[1]} == "[" ]]
  101.                 then
  102.                         if [[ $key == "A" ]]; then sig=$sigRotate #<向上键>
  103.                         elif [[ $key == "B" ]]; then sig=$sigDown #<向下键>
  104.                         elif [[ $key == "D" ]]; then sig=$sigLeft #<向左键>
  105.                         elif [[ $key == "C" ]]; then sig=$sigRight #<向右键>
  106.                         fi
  107.                 elif [[ $key == "W" || $key == "w" ]]; then sig=$sigRotate #W, w
  108.                 elif [[ $key == "S" || $key == "s" ]]; then sig=$sigDown #S, s
  109.                 elif [[ $key == "A" || $key == "a" ]]; then sig=$sigLeft #A, a
  110.                 elif [[ $key == "D" || $key == "d" ]]; then sig=$sigRight #D, d
  111.                 elif [[ "[$key]" == "[]" ]]; then sig=$sigAllDown #空格键
  112.                 elif [[ $key == "Q" || $key == "q" ]] #Q, q
  113.                 then
  114.                         MyExit
  115.                 fi

  116.                 if [[ $sig != 0 ]]
  117.                 then
  118.                         #向另一进程发送消息
  119.                         kill -$sig $pidDisplayer
  120.                 fi
  121.         done
  122. }

  123. #退出前的恢复
  124. function MyExitNoSub()
  125. {
  126.         local y

  127.         #恢复终端属性
  128.         stty $sTTY
  129.         ((y = iTop + iTrayHeight + 4))

  130.         #显示光标
  131.         echo -e "\033[?25h\033[${y};0H"
  132.         exit
  133. }


  134. function MyExit()
  135. {
  136.         #通知显示进程需要退出
  137.         kill -$sigExit $pidDisplayer

  138.         MyExitNoSub
  139. }


  140. #处理显示和游戏流程的主函数
  141. function RunAsDisplayer()
  142. {
  143.         local sigThis
  144.         InitDraw

  145.         #挂载各种信号的处理函数
  146.         trap "sig=$sigRotate;" $sigRotate
  147.         trap "sig=$sigLeft;" $sigLeft
  148.         trap "sig=$sigRight;" $sigRight
  149.         trap "sig=$sigDown;" $sigDown
  150.         trap "sig=$sigAllDown;" $sigAllDown
  151.         trap "ShowExit;" $sigExit

  152.         while :
  153.         do
  154.                 #根据当前的速度级iLevel不同,设定相应的循环的次数
  155.                 for ((i = 0; i < 21 - iLevel; i++))
  156.                 do
  157.                         sleep 0.02
  158.                         sigThis=$sig
  159.                         sig=0

  160.                         #根据sig变量判断是否接受到相应的信号
  161.                         if ((sigThis == sigRotate)); then BoxRotate; #旋转
  162.                         elif ((sigThis == sigLeft)); then BoxLeft; #左移一列
  163.                         elif ((sigThis == sigRight)); then BoxRight; #右移一列
  164.                         elif ((sigThis == sigDown)); then BoxDown; #下落一行
  165.                         elif ((sigThis == sigAllDown)); then BoxAllDown; #下落到底
  166.                         fi
  167.                 done
  168.                 #kill -$sigDown $$
  169.                 BoxDown #下落一行
  170.         done
  171. }


  172. #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
  173. function BoxMove()
  174. {
  175.         local j i x y xTest yTest
  176.         yTest=$1
  177.         xTest=$2
  178.         for ((j = 0; j < 8; j += 2))
  179.         do
  180.                 ((i = j + 1))
  181.                 ((y = ${boxCur[$j]} + yTest))
  182.                 ((x = ${boxCur[$i]} + xTest))
  183.                 if (( y < 0 || y >= iTrayHeight || x < 0 || x >= iTrayWidth))
  184.                 then
  185.                         #撞到墙壁了
  186.                         return 1
  187.                 fi
  188.                 if ((${iMap[y * iTrayWidth + x]} != -1 ))
  189.                 then
  190.                         #撞到其他已经存在的方块了
  191.                         return 1
  192.                 fi
  193.         done
  194.         return 0;
  195. }


  196. #将当前移动中的方块放到背景方块中去,
  197. #并计算新的分数和速度级。(即一次方块落到底部)
  198. function Box2Map()
  199. {
  200.         local j i x y xp yp line

  201.         #将当前移动中的方块放到背景方块中去
  202.         for ((j = 0; j < 8; j += 2))
  203.         do
  204.                 ((i = j + 1))
  205.                 ((y = ${boxCur[$j]} + boxCurY))
  206.                 ((x = ${boxCur[$i]} + boxCurX))
  207.                 ((i = y * iTrayWidth + x))
  208.                 iMap[$i]=$cBoxCur
  209.         done

  210.         #消去可被消去的行
  211.         line=0
  212.         for ((j = 0; j < iTrayWidth * iTrayHeight; j += iTrayWidth))
  213.         do
  214.                 for ((i = j + iTrayWidth - 1; i >= j; i--))
  215.                 do
  216.                         if ((${iMap[$i]} == -1)); then break; fi
  217.                 done
  218.                 if ((i >= j)); then continue; fi

  219.                 ((line++))
  220.                 for ((i = j - 1; i >= 0; i--))
  221.                 do
  222.                         ((x = i + iTrayWidth))
  223.                         iMap[$x]=${iMap[$i]}
  224.                 done
  225.                 for ((i = 0; i < iTrayWidth; i++))
  226.                 do
  227.                         iMap[$i]=-1
  228.                 done
  229.         done

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

  231.         #根据消去的行数line计算分数和速度级
  232.         ((x = iLeft + iTrayWidth * 2 + 7))
  233.         ((y = iTop + 11))
  234.         ((iScore += line * 2 - 1))
  235.         #显示新的分数
  236.         echo -ne "\033[1m\033[3${cScoreValue}m\033[${y};${x}H${iScore} "
  237.         if ((iScore % iScoreEachLevel < line * 2 - 1))
  238.         then
  239.                 if ((iLevel < 20))
  240.                 then
  241.                         ((iLevel++))
  242.                         ((y = iTop + 14))
  243.                         #显示新的速度级
  244.                         echo -ne "\033[3${cScoreValue}m\033[${y};${x}H${iLevel} "
  245.                 fi
  246.         fi
  247.         echo -ne "\033[0m"


  248.         #重新显示背景方块
  249.         for ((y = 0; y < iTrayHeight; y++))
  250.         do
  251.                 ((yp = y + iTrayTop + 1))
  252.                 ((xp = iTrayLeft + 1))
  253.                 ((i = y * iTrayWidth))
  254.                 echo -ne "\033[${yp};${xp}H"
  255.                 for ((x = 0; x < iTrayWidth; x++))
  256.                 do
  257.                         ((j = i + x))
  258.                         if ((${iMap[$j]} == -1))
  259.                         then
  260.                                 echo -ne " "
  261.                         else
  262.                                 echo -ne "\033[1m\033[7m\033[3${iMap[$j]}m\033[4${iMap[$j]}m[]\033[0m"
  263.                         fi
  264.                 done
  265.         done
  266. }


  267. #下落一行
  268. function BoxDown()
  269. {
  270.         local y s
  271.         ((y = boxCurY + 1)) #新的y坐标
  272.         if BoxMove $y $boxCurX #测试是否可以下落一行
  273.         then
  274.                 s="`DrawCurBox 0`" #将旧的方块抹去
  275.                 ((boxCurY = y))
  276.                 s="$s`DrawCurBox 1`" #显示新的下落后方块
  277.                 echo -ne $s
  278.         else
  279.                 #走到这儿, 如果不能下落了
  280.                 Box2Map #将当前移动中的方块贴到背景方块中
  281.                 RandomBox #产生新的方块
  282.         fi
  283. }

  284. #左移一列
  285. function BoxLeft()
  286. {
  287.         local x s
  288.         ((x = boxCurX - 1))
  289.         if BoxMove $boxCurY $x
  290.         then
  291.                 s=`DrawCurBox 0`
  292.                 ((boxCurX = x))
  293.                 s=$s`DrawCurBox 1`
  294.                 echo -ne $s
  295.         fi
  296. }

  297. #右移一列
  298. function BoxRight()
  299. {
  300.         local x s
  301.         ((x = boxCurX + 1))
  302.         if BoxMove $boxCurY $x
  303.         then
  304.                 s=`DrawCurBox 0`
  305.                 ((boxCurX = x))
  306.                 s=$s`DrawCurBox 1`
  307.                 echo -ne $s
  308.         fi
  309. }


  310. #下落到底
  311. function BoxAllDown()
  312. {
  313.         local k j i x y iDown s
  314.         iDown=$iTrayHeight

  315.         #计算一共需要下落多少行
  316.         for ((j = 0; j < 8; j += 2))
  317.         do
  318.                 ((i = j + 1))
  319.                 ((y = ${boxCur[$j]} + boxCurY))
  320.                 ((x = ${boxCur[$i]} + boxCurX))
  321.                 for ((k = y + 1; k < iTrayHeight; k++))
  322.                 do
  323.                         ((i = k * iTrayWidth + x))
  324.                         if (( ${iMap[$i]} != -1)); then break; fi
  325.                 done
  326.                 ((k -= y + 1))
  327.                 if (( $iDown > $k )); then iDown=$k; fi
  328.         done

  329.         s=`DrawCurBox 0` #将旧的方块抹去
  330.         ((boxCurY += iDown))
  331.         s=$s`DrawCurBox 1` #显示新的下落后的方块
  332.         echo -ne $s
  333.         Box2Map #将当前移动中的方块贴到背景方块中
  334.         RandomBox #产生新的方块
  335. }


  336. #旋转方块
  337. function BoxRotate()
  338. {
  339.         local iCount iTestRotate boxTest j i s
  340.         iCount=${countBox[$iBoxCurType]} #当前的方块经旋转可以产生的样式的数目

  341.         #计算旋转后的新的样式
  342.         ((iTestRotate = iBoxCurRotate + 1))
  343.         if ((iTestRotate >= iCount))
  344.         then
  345.                 ((iTestRotate = 0))
  346.         fi

  347.         #更新到新的样式, 保存老的样式(但不显示)
  348.         for ((j = 0, i = (${offsetBox[$iBoxCurType]} + $iTestRotate) * 8; j < 8; j++, i++))
  349.         do
  350.                 boxTest[$j]=${boxCur[$j]}
  351.                 boxCur[$j]=${box[$i]}
  352.         done

  353.         if BoxMove $boxCurY $boxCurX #测试旋转后是否有空间放的下
  354.         then
  355.                 #抹去旧的方块
  356.                 for ((j = 0; j < 8; j++))
  357.                 do
  358.                         boxCur[$j]=${boxTest[$j]}
  359.                 done
  360.                 s=`DrawCurBox 0`

  361.                 #画上新的方块
  362.                 for ((j = 0, i = (${offsetBox[$iBoxCurType]} + $iTestRotate) * 8; j < 8; j++, i++))
  363.                 do
  364.                         boxCur[$j]=${box[$i]}
  365.                 done
  366.                 s=$s`DrawCurBox 1`
  367.                 echo -ne $s
  368.                 iBoxCurRotate=$iTestRotate
  369.         else
  370.                 #不能旋转,还是继续使用老的样式
  371.                 for ((j = 0; j < 8; j++))
  372.                 do
  373.                         boxCur[$j]=${boxTest[$j]}
  374.                 done
  375.         fi
  376. }


  377. #DrawCurBox(bDraw), 绘制当前移动中的方块, bDraw为1, 画上, bDraw为0, 抹去方块。
  378. function DrawCurBox()
  379. {
  380.         local i j t bDraw sBox s
  381.         bDraw=$1

  382.         s=""
  383.         if (( bDraw == 0 ))
  384.         then
  385.                 sBox="\040\040"
  386.         else
  387.                 sBox="[]"
  388.                 s=$s"\033[1m\033[7m\033[3${cBoxCur}m\033[4${cBoxCur}m"
  389.         fi

  390.         for ((j = 0; j < 8; j += 2))
  391.         do
  392.                 ((i = iTrayTop + 1 + ${boxCur[$j]} + boxCurY))
  393.                 ((t = iTrayLeft + 1 + 2 * (boxCurX + ${boxCur[$j + 1]})))
  394.                 #\033[y;xH, 光标到(x, y)
  395.                 s=$s"\033[${i};${t}H${sBox}"
  396.         done
  397.         s=$s"\033[0m"
  398.         echo -n $s
  399. }


  400. #更新新的方块
  401. function RandomBox()
  402. {
  403.         local i j t

  404.         #更新当前移动的方块
  405.         iBoxCurType=${iBoxNewType}
  406.         iBoxCurRotate=${iBoxNewRotate}
  407.         cBoxCur=${cBoxNew}
  408.         for ((j = 0; j < ${#boxNew[@]}; j++))
  409.         do
  410.                 boxCur[$j]=${boxNew[$j]}
  411.         done


  412.         #显示当前移动的方块
  413.         if (( ${#boxCur[@]} == 8 ))
  414.         then
  415.                 #计算当前方块该从顶端哪一行"冒"出来
  416.                 for ((j = 0, t = 4; j < 8; j += 2))
  417.                 do
  418.                         if ((${boxCur[$j]} < t)); then t=${boxCur[$j]}; fi
  419.                 done
  420.                 ((boxCurY = -t))
  421.                 for ((j = 1, i = -4, t = 20; j < 8; j += 2))
  422.                 do
  423.                         if ((${boxCur[$j]} > i)); then i=${boxCur[$j]}; fi
  424.                         if ((${boxCur[$j]} < t)); then t=${boxCur[$j]}; fi
  425.                 done
  426.                 ((boxCurX = (iTrayWidth - 1 - i - t) / 2))

  427.                 #显示当前移动的方块
  428.                 echo -ne `DrawCurBox 1`

  429.                 #如果方块一出来就没处放,Game
  430.                 if ! BoxMove $boxCurY $boxCurX
  431.                 then
  432.                         kill -$sigExit ${PPID}
  433.                         ShowExit
  434.                 fi
  435.         fi



  436.         #清除右边预显示的方块
  437.         for ((j = 0; j < 4; j++))
  438.         do
  439.                 ((i = iTop + 1 + j))
  440.                 ((t = iLeft + 2 * iTrayWidth + 7))
  441.                 echo -ne "\033[${i};${t}H "
  442.         done

  443.         #随机产生新的方块
  444.         ((iBoxNewType = RANDOM % ${#offsetBox[@]}))
  445.         ((iBoxNewRotate = RANDOM % ${countBox[$iBoxNewType]}))
  446.         for ((j = 0, i = (${offsetBox[$iBoxNewType]} + $iBoxNewRotate) * 8; j < 8; j++, i++))
  447.         do
  448.                 boxNew[$j]=${box[$i]};
  449.         done

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

  451.         #显示右边预显示的方块
  452.         echo -ne "\033[1m\033[7m\033[3${cBoxNew}m\033[4${cBoxNew}m"
  453.         for ((j = 0; j < 8; j += 2))
  454.         do
  455.                 ((i = iTop + 1 + ${boxNew[$j]}))
  456.                 ((t = iLeft + 2 * iTrayWidth + 7 + 2 * ${boxNew[$j + 1]}))
  457.                 echo -ne "\033[${i};${t}H[]"
  458.         done
  459.         echo -ne "\033[0m"
  460. }


  461. #初始绘制
  462. function InitDraw()
  463. {
  464.         clear
  465.         RandomBox #随机产生方块,这时右边预显示窗口中有方快了
  466.         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
  467.         local i t1 t2 t3

  468.         #显示边框
  469.         echo -ne "\033[1m"
  470.         echo -ne "\033[3${cBorder}m\033[4${cBorder}m"

  471.         ((t2 = iLeft + 1))
  472.         ((t3 = iLeft + iTrayWidth * 2 + 3))
  473.         for ((i = 0; i < iTrayHeight; i++))
  474.         do
  475.                 ((t1 = i + iTop + 2))
  476.                 echo -ne "\033[${t1};${t2}H||"
  477.                 echo -ne "\033[${t1};${t3}H||"
  478.         done

  479.         ((t2 = iTop + iTrayHeight + 2))
  480.         for ((i = 0; i < iTrayWidth + 2; i++))
  481.         do
  482.                 ((t1 = i * 2 + iLeft + 1))
  483.                 echo -ne "\033[${iTrayTop};${t1}H=="
  484.                 echo -ne "\033[${t2};${t1}H=="
  485.         done
  486.         echo -ne "\033[0m"


  487.         #显示"Score""Level"字样
  488.         echo -ne "\033[1m"
  489.         ((t1 = iLeft + iTrayWidth * 2 + 7))
  490.         ((t2 = iTop + 10))
  491.         echo -ne "\033[3${cScore}m\033[${t2};${t1}HScore"
  492.         ((t2 = iTop + 11))
  493.         echo -ne "\033[3${cScoreValue}m\033[${t2};${t1}H${iScore}"
  494.         ((t2 = iTop + 13))
  495.         echo -ne "\033[3${cScore}m\033[${t2};${t1}HLevel"
  496.         ((t2 = iTop + 14))
  497.         echo -ne "\033[3${cScoreValue}m\033[${t2};${t1}H${iLevel}"
  498.         echo -ne "\033[0m"
  499. }


  500. #
  501. function ShowExit()
  502. {
  503.         local y
  504.         ((y = iTrayHeight + iTrayTop + 3))
  505.         echo -e "\033[${y};0HGameOver!\033[0m"
  506.         exit
  507. }


  508. #显示用法.
  509. function Usage
  510. {
  511.         cat << EOF
  512. Usage: $APP_NAME
  513. Start tetris game.

  514.   -h, --help display this help and exit
  515.       --version output version information and exit
  516. EOF
  517. }


  518. #游戏主程序在这儿开始.
  519. if [[ "$1" == "-h" || "$1" == "--help" ]]; then
  520.         Usage
  521. elif [[ "$1" == "--version" ]]; then
  522.         echo "$APP_NAME $APP_VERSION"
  523. elif [[ "$1" == "--show" ]]; then
  524.         #当发现具有参数--show时,运行显示函数
  525.         RunAsDisplayer
  526. else
  527.         bash $0 --show& #以参数--show将本程序再运行一遍
  528.         RunAsKeyReceiver $! #以上一行产生的进程的进程号作为参数
  529. fi

 

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