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Posted on 2010-02-04 15:38 Prayer 閱讀(342) 評(píng)論(0) 編輯 收藏 引用 所屬分類(lèi): Shell
- #!/bin/bash
- # Tetris Game
- # 10.21.2003 xhchen<[email]xhchen@winbond.com.tw[/email]>
- #APP declaration
- APP_NAME="${0##*[\\/]}"
- APP_VERSION="1.0"
- #顏色定義
- cRed=1
- cGreen=2
- cYellow=3
- cBlue=4
- cFuchsia=5
- cCyan=6
- cWhite=7
- colorTable=($cRed $cGreen $cYellow $cBlue $cFuchsia $cCyan $cWhite)
- #位置和大小
- iLeft=3
- iTop=2
- ((iTrayLeft = iLeft + 2))
- ((iTrayTop = iTop + 1))
- ((iTrayWidth = 10))
- ((iTrayHeight = 15))
- #顏色設(shè)置
- cBorder=$cGreen
- cScore=$cFuchsia
- cScoreValue=$cCyan
- #控制信號(hào)
- #改游戲使用兩個(gè)進(jìn)程，一個(gè)用于接收輸入，一個(gè)用于游戲流程和顯示界面;
- #當(dāng)前者接收到上下左右等按鍵時(shí)，通過(guò)向后者發(fā)送signal的方式通知后者。
- sigRotate=25
- sigLeft=26
- sigRight=27
- sigDown=28
- sigAllDown=29
- sigExit=30
- #七中不同的方塊的定義
- #通過(guò)旋轉(zhuǎn)，每種方塊的顯示的樣式可能有幾種
- 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)
- #所有其中方塊的定義都放到box變量中
- box=(${box0[@]} ${box1[@]} ${box2[@]} ${box3[@]} ${box4[@]} ${box5[@]} ${box6[@]})
- #各種方塊旋轉(zhuǎn)后可能的樣式數(shù)目
- countBox=(1 2 2 2 4 4 4)
- #各種方塊再box數(shù)組中的偏移
- offsetBox=(0 1 3 5 7 11 15)
- #每提高一個(gè)速度級(jí)需要積累的分?jǐn)?shù)
- iScoreEachLevel=50 #be greater than 7
- #運(yùn)行時(shí)數(shù)據(jù)
- sig=0 #接收到的signal
- iScore=0 #總分
- iLevel=0 #速度級(jí)
- boxNew=() #新下落的方塊的位置定義
- cBoxNew=0 #新下落的方塊的顏色
- iBoxNewType=0 #新下落的方塊的種類(lèi)
- iBoxNewRotate=0 #新下落的方塊的旋轉(zhuǎn)角度
- boxCur=() #當(dāng)前方塊的位置定義
- cBoxCur=0 #當(dāng)前方塊的顏色
- iBoxCurType=0 #當(dāng)前方塊的種類(lèi)
- iBoxCurRotate=0 #當(dāng)前方塊的旋轉(zhuǎn)角度
- boxCurX=-1 #當(dāng)前方塊的x坐標(biāo)位置
- boxCurY=-1 #當(dāng)前方塊的y坐標(biāo)位置
- iMap=() #背景方塊圖表
- #初始化所有背景方塊為-1, 表示沒(méi)有方塊
- for ((i = 0; i < iTrayHeight * iTrayWidth; i++)); do iMap[$i]=-1; done
- #接收輸入的進(jìn)程的主函數(shù)
- function RunAsKeyReceiver()
- {
- local pidDisplayer key aKey sig cESC sTTY
- pidDisplayer=$1
- aKey=(0 0 0)
- cESC=`echo -ne "\033"`
- cSpace=`echo -ne "\040"`
- #保存終端屬性。在read -s讀取終端鍵時(shí)，終端的屬性會(huì)被暫時(shí)改變。
- #如果在read -s時(shí)程序被不幸殺掉，可能會(huì)導(dǎo)致終端混亂，
- #需要在程序退出時(shí)恢復(fù)終端屬性。
- sTTY=`stty -g`
- #捕捉退出信號(hào)
- trap "MyExit;" INT TERM
- trap "MyExitNoSub;" $sigExit
- #隱藏光標(biāo)
- echo -ne "\033[?25l"
- while :
- do
- #讀取輸入。注-s不回顯，-n讀到一個(gè)字符立即返回
- read -s -n 1 key
- aKey[0]=${aKey[1]}
- aKey[1]=${aKey[2]}
- aKey[2]=$key
- sig=0
- #判斷輸入了何種鍵
- if [[ $key == $cESC && ${aKey[1]} == $cESC ]]
- then
- #ESC鍵
- MyExit
- elif [[ ${aKey[0]} == $cESC && ${aKey[1]} == "[" ]]
- then
- if [[ $key == "A" ]]; then sig=$sigRotate #<向上鍵>
- elif [[ $key == "B" ]]; then sig=$sigDown #<向下鍵>
- elif [[ $key == "D" ]]; then sig=$sigLeft #<向左鍵>
- elif [[ $key == "C" ]]; then sig=$sigRight #<向右鍵>
- 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 #空格鍵
- elif [[ $key == "Q" || $key == "q" ]] #Q, q
- then
- MyExit
- fi
- if [[ $sig != 0 ]]
- then
- #向另一進(jìn)程發(fā)送消息
- kill -$sig $pidDisplayer
- fi
- done
- }
- #退出前的恢復(fù)
- function MyExitNoSub()
- {
- local y
- #恢復(fù)終端屬性
- stty $sTTY
- ((y = iTop + iTrayHeight + 4))
- #顯示光標(biāo)
- echo -e "\033[?25h\033[${y};0H"
- exit
- }
- function MyExit()
- {
- #通知顯示進(jìn)程需要退出
- kill -$sigExit $pidDisplayer
- MyExitNoSub
- }
- #處理顯示和游戲流程的主函數(shù)
- function RunAsDisplayer()
- {
- local sigThis
- InitDraw
- #掛載各種信號(hào)的處理函數(shù)
- trap "sig=$sigRotate;" $sigRotate
- trap "sig=$sigLeft;" $sigLeft
- trap "sig=$sigRight;" $sigRight
- trap "sig=$sigDown;" $sigDown
- trap "sig=$sigAllDown;" $sigAllDown
- trap "ShowExit;" $sigExit
- while :
- do
- #根據(jù)當(dāng)前的速度級(jí)iLevel不同，設(shè)定相應(yīng)的循環(huán)的次數(shù)
- for ((i = 0; i < 21 - iLevel; i++))
- do
- sleep 0.02
- sigThis=$sig
- sig=0
- #根據(jù)sig變量判斷是否接受到相應(yīng)的信號(hào)
- if ((sigThis == sigRotate)); then BoxRotate; #旋轉(zhuǎn)
- 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), 測(cè)試是否可以把移動(dòng)中的方塊移到(x, y)的位置, 返回0則可以, 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
- #撞到墻壁了
- return 1
- fi
- if ((${iMap[y * iTrayWidth + x]} != -1 ))
- then
- #撞到其他已經(jīng)存在的方塊了
- return 1
- fi
- done
- return 0;
- }
- #將當(dāng)前移動(dòng)中的方塊放到背景方塊中去,
- #并計(jì)算新的分?jǐn)?shù)和速度級(jí)。(即一次方塊落到底部)
- function Box2Map()
- {
- local j i x y xp yp line
- #將當(dāng)前移動(dòng)中的方塊放到背景方塊中去
- 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
- #根據(jù)消去的行數(shù)line計(jì)算分?jǐn)?shù)和速度級(jí)
- ((x = iLeft + iTrayWidth * 2 + 7))
- ((y = iTop + 11))
- ((iScore += line * 2 - 1))
- #顯示新的分?jǐn)?shù)
- 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))
- #顯示新的速度級(jí)
- echo -ne "\033[3${cScoreValue}m\033[${y};${x}H${iLevel} "
- fi
- fi
- echo -ne "\033[0m"
- #重新顯示背景方塊
- 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坐標(biāo)
- if BoxMove $y $boxCurX #測(cè)試是否可以下落一行
- then
- s="`DrawCurBox 0`" #將舊的方塊抹去
- ((boxCurY = y))
- s="$s`DrawCurBox 1`" #顯示新的下落后方塊
- echo -ne $s
- else
- #走到這兒, 如果不能下落了
- Box2Map #將當(dāng)前移動(dòng)中的方塊貼到背景方塊中
- RandomBox #產(chǎn)生新的方塊
- 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
- #計(jì)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` #將舊的方塊抹去
- ((boxCurY += iDown))
- s=$s`DrawCurBox 1` #顯示新的下落后的方塊
- echo -ne $s
- Box2Map #將當(dāng)前移動(dòng)中的方塊貼到背景方塊中
- RandomBox #產(chǎn)生新的方塊
- }
- #旋轉(zhuǎn)方塊
- function BoxRotate()
- {
- local iCount iTestRotate boxTest j i s
- iCount=${countBox[$iBoxCurType]} #當(dāng)前的方塊經(jīng)旋轉(zhuǎn)可以產(chǎn)生的樣式的數(shù)目
- #計(jì)算旋轉(zhuǎn)后的新的樣式
- ((iTestRotate = iBoxCurRotate + 1))
- if ((iTestRotate >= iCount))
- then
- ((iTestRotate = 0))
- fi
- #更新到新的樣式, 保存老的樣式(但不顯示)
- for ((j = 0, i = (${offsetBox[$iBoxCurType]} + $iTestRotate) * 8; j < 8; j++, i++))
- do
- boxTest[$j]=${boxCur[$j]}
- boxCur[$j]=${box[$i]}
- done
- if BoxMove $boxCurY $boxCurX #測(cè)試旋轉(zhuǎn)后是否有空間放的下
- then
- #抹去舊的方塊
- for ((j = 0; j < 8; j++))
- do
- boxCur[$j]=${boxTest[$j]}
- done
- s=`DrawCurBox 0`
- #畫(huà)上新的方塊
- 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
- #不能旋轉(zhuǎn)，還是繼續(xù)使用老的樣式
- for ((j = 0; j < 8; j++))
- do
- boxCur[$j]=${boxTest[$j]}
- done
- fi
- }
- #DrawCurBox(bDraw), 繪制當(dāng)前移動(dòng)中的方塊, bDraw為1, 畫(huà)上, bDraw為0, 抹去方塊。
- 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, 光標(biāo)到(x, y)處
- s=$s"\033[${i};${t}H${sBox}"
- done
- s=$s"\033[0m"
- echo -n $s
- }
- #更新新的方塊
- function RandomBox()
- {
- local i j t
- #更新當(dāng)前移動(dòng)的方塊
- iBoxCurType=${iBoxNewType}
- iBoxCurRotate=${iBoxNewRotate}
- cBoxCur=${cBoxNew}
- for ((j = 0; j < ${#boxNew[@]}; j++))
- do
- boxCur[$j]=${boxNew[$j]}
- done
- #顯示當(dāng)前移動(dòng)的方塊
- if (( ${#boxCur[@]} == 8 ))
- then
- #計(jì)算當(dāng)前方塊該從頂端哪一行"冒"出來(lái)
- for ((j = 0, t = 4; j < 8; j += 2))
- do
- if ((${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))
- #顯示當(dāng)前移動(dòng)的方塊
- echo -ne `DrawCurBox 1`
- #如果方塊一出來(lái)就沒(méi)處放，Game over!
- if ! BoxMove $boxCurY $boxCurX
- then
- kill -$sigExit ${PPID}
- ShowExit
- fi
- fi
- #清除右邊預(yù)顯示的方塊
- for ((j = 0; j < 4; j++))
- do
- ((i = iTop + 1 + j))
- ((t = iLeft + 2 * iTrayWidth + 7))
- echo -ne "\033[${i};${t}H "
- done
- #隨機(jī)產(chǎn)生新的方塊
- ((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 % ${#colorTable[@]}]}))
- #顯示右邊預(yù)顯示的方塊
- echo -ne "\033[1m\033[7m\033[3${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"
- }
- #初始繪制
- function InitDraw()
- {
- clear
- RandomBox #隨機(jī)產(chǎn)生方塊，這時(shí)右邊預(yù)顯示窗口中有方快了
- RandomBox #再隨機(jī)產(chǎn)生方塊，右邊預(yù)顯示窗口中的方塊被更新，原先的方塊將開(kāi)始下落
- local i t1 t2 t3
- #顯示邊框
- 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"
- #顯示"Score"和"Level"字樣
- 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"
- }
- #退出時(shí)顯示GameOVer!
- function ShowExit()
- {
- local y
- ((y = iTrayHeight + iTrayTop + 3))
- echo -e "\033[${y};0HGameOver!\033[0m"
- exit
- }
- #顯示用法.
- function Usage
- {
- cat << EOF
- Usage: $APP_NAME
- Start tetris game.
- -h, --help display this help and exit
- --version output version information and exit
- EOF
- }
- #游戲主程序在這兒開(kāi)始.
- if [[ "$1" == "-h" || "$1" == "--help" ]]; then
- Usage
- elif [[ "$1" == "--version" ]]; then
- echo "$APP_NAME $APP_VERSION"
- elif [[ "$1" == "--show" ]]; then
- #當(dāng)發(fā)現(xiàn)具有參數(shù)--show時(shí)，運(yùn)行顯示函數(shù)
- RunAsDisplayer
- else
- bash $0 --show& #以參數(shù)--show將本程序再運(yùn)行一遍
- RunAsKeyReceiver $! #以上一行產(chǎn)生的進(jìn)程的進(jìn)程號(hào)作為參數(shù)
- fi
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