Shell寫的貪吃蛇遊戲(轉)

Shell寫的貪吃蛇遊戲(轉)[@more@]

忙一下午，終於出來了

在我的redhat8.0上執行透過。

遊戲鍵：

上：w, i

下：s, k

左：a, j

右：d, l

退出：q

[code:1:327d008a38]

#!/bin/bash

function DetectInput

{

while [[ 1 ]]

do

c=""

read -n 1 c

echo -ne " "

if [[ $c == "a" || $c == "j" || $c == "A" || $c == "J" ]]

then

kill -36 $pidShowSnake

elif [[ $c == "w" || $c == "i" || $c == "W" || $c == "I" ]]

then

kill -37 $pidShowSnake

elif [[ $c == "d" || $c == "l" || $c == "D" || $c == "L" ]]

then

kill -38 $pidShowSnake

elif [[ $c == "s" || $c == "k" || $c == "S" || $c == "K" ]]

then

kill -39 $pidShowSnake

elif [[ $c == "q" || $c == "Q" ]]

then

echo Quit.

kill -40 $pidShowSnake

exit

fi

done

}

function AllExit

{

kill -40 $pidShowSnake

exit

}

if [[ $1 != "--showsnake" ]]

then

eval $0" --showsnake "$$"&"

trap "exit" TERM

trap "AllExit" INT

pidShowSnake=$!

DetectInput

exit

else

pidCtlSnake=$2

fi

echo sub

iSpeed=500 #time interval in millisecond

iDirection=0 #1-left, 2-up, 3-right, 4-down

iWidth=15

iHeight=15

iX=(6 7 8)

iY=(7 7 7)

iMap=()

iS=0 #Start pointer in iX

(( iTotalBox = iWidth * iHeight ))

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

do

(( iMap[$i] = 0 ))

done

function RandomHeader

{

(( iNew = RANDOM % ( iTotalBox - ${#iX[@]} ) ))

for (( iNewP = 0, i = 0; iNewP < iTotalBox && i < iNew; iNewP++))

do

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

done

while (( ${iMap[$iNewP]} == 1 )); do (( iNewP++ )); done

(( iNewX = iNewP % iWidth ))

(( iNewY = (iNewP - iNewX) / iWidth ))

echo -ne "33[1m33[35m"

(( pX = 2 * iNewX + iLeft + 1 ))

(( pY = iNewY + iTop + 1 ))

echo -ne "33["$pY";"$pX"H[]"

echo -ne "33["$iCursor";1H"

echo -ne "33[0m"

}

function InitDraw

{

clear

(( iTop = 1 ))

(( iBottom = iTop + iHeight + 1 ))

(( iLeft = 1 ))

(( iRight = iLeft + iWidth + iWidth + 1 ))

(( iCursor = iBottom + 1 ))

echo -ne "33[1m33[32m"

for (( i = iLeft + 1; i < iWidth + iWidth + iLeft + 1; i++ ))

do

echo -ne "33["$iTop";"$i"H="

echo -ne "33["$iBottom";"$i"H="

done

for (( i = iTop; i < iHeight + iTop + 2; i++ ))

do

echo -ne "33["$i";"$iLeft"H|"

echo -ne "33["$i";"$iRight"H|"

done

echo -ne "33["$iCursor";1H"

echo -ne "33[0m"

echo -ne "33[1m33[33m"

for (( i = 0; i < ${#iX[@]}; i++ ))

do

(( pX = 2 * ${iX[$i]} + iLeft + 1 ))

(( pY = ${iY[$i]} + iTop + 1 ))

(( pM = ${iY[$i]} * iWidth + ${iX[$i]} ))

(( iMap[$pM] = 1 ))

echo -ne "33["$pY";"$pX"H[]"

#echo ${iX[$i]}

done

echo -ne "33["$iCursor";1H"

echo -ne "33[0m"

RandomHeader

}

function ShiftSnake

{

(( iLastP = iS - 1 ))

if (( iLastP < 0 )); then ((iLastP = ${#iX[@]} - 1 )); fi

if (( iDir == 1 )) #left

then

(( iHX = ${iX[$iLastP]} - 1 ))

(( iHY = ${iY[$iLastP]} ))

elif (( iDir == 2 )) #up

then

(( iHX = ${iX[$iLastP]} ))

(( iHY = ${iY[$iLastP]} - 1 ))

elif (( iDir == 3 )) #right

then

(( iHX = ${iX[$iLastP]} + 1 ))

(( iHY = ${iY[$iLastP]} ))

elif (( iDir == 4 )) #down

then

(( iHX = ${iX[$iLastP]} ))

(( iHY = ${iY[$iLastP]} + 1 ))

fi

bOver=0

if (( iHX < 0 || iHY < 0 || iHX >= iWidth || iHY >= iHeight )); then bOver=1;fi

if (( bOver == 0 )); then

if (( ${iMap[iHY * iWidth + iHX]} == 1 )); then bOver=1; fi

fi

if (( bOver == 1 ))

then

kill $pidCtlSnake

(( iBottom = iBottom + 1 ))

echo -e "33["$iBottom";0HGame over! (Score: "${#iX[@]}"00)33[0m"

exit 0;

fi

#check if catch the new box

if (( iHX == iNewX && iHY == iNewY ))

then

for (( i = ${#iX[@]}; i > iS; i-- ))

do

(( iX[$i] = ${iX[$i - 1]} ))

(( iY[$i] = ${iY[$i - 1]} ))

done

(( iX[$iS] = iHX ))

(( iY[$iS] = iHY ))

(( iNextP = iS + 1 ))

if (( iNextP >= ${#iX[@]} )); then iNextP=0; fi

echo -ne "a"

RandomHeader

else

(( iNextP = iS + 1 ))

if (( iNextP >= ${#iX[@]} )); then iNextP=0; fi

#clear snake tailer

(( pX = 2 * ${iX[$iS]} + iLeft + 1 ))

(( pY = ${iY[$iS]} + iTop + 1 ))

(( pM = ${iY[$iS]} * iWidth + ${iX[$iS]} ))

(( iMap[$pM] = 0 ))

echo -ne "33["$pY";"$pX"H "

(( iX[$iS] = iHX ))

(( iY[$iS] = iHY ))

fi

#draw snake header

echo -ne "33[1m33[33m"

(( pX = 2 * iHX + iLeft + 1 ))

(( pY = iHY + iTop + 1 ))

(( pM = iHY * iWidth + iHX ))

(( iMap[$pM] = 1 ))

echo -ne "33["$pY";"$pX"H[]"

echo -ne "33["$iCursor";1H"

echo -ne "33[0m"

(( iS = iNextP ))

}

trap "if (( iDir != 3 && iDir != 0 )); then iDirection=1; fi" 36

trap "if (( iDir != 4 )); then iDirection=2; fi" 37

trap "if (( iDir != 1 )); then iDirection=3; fi" 38

trap "if (( iDir != 2 )); then iDirection=4; fi" 39

trap "exit" 40

InitDraw

(( iNanoSec = iSpeed * 1000000 ))

iTime="1"`date +"%S%N"`

while [[ 1 ]]

do

usleep 100000

iTimeNew="1"`date +"%S%N"`

#avoid iTimeNew < iTime when new minute comes

if (( iTimeNew < iTime ))

then

(( iTime = iTime - 60000000000 ))

fi

#detect the time interval

if (( iTimeNew - iTime < iNanoSec )); then continue; fi

iTime=$iTimeNew

iDir=$iDirection

if (( iDir != 0 ))

then

ShiftSnake

fi

done