shell版的贪吃蛇

原贴:

[root@cacti test]# cat tanchi.sh
#!/bin/sh

## 区域内部的可活动的范围。此处可修改相应的值
Width=50   # 偶数
Height=15
PadX=10
PadY=5
Speed="2"  # 1-9，值越小，速度越快

## 蛇起始位置
((SnakeX=PadX+Width/2))
((SnakeY=PadY+Height/2))
((ScoreX=PadX+Width/2-10))
((ScoreY=PadY-3))
score=0
SnakeHead="\033[41m@\033[0m"
SnakeBody="\033[41m \033[0m"


P1="\033[31mO\033[0m"
P2="\033[32mO\033[0m"
P3="\033[33mO\033[0m"
P4="\033[34mO\033[0m"
P5="\033[35mO\033[0m"
P6="\033[36mO\033[0m"
P7="\033[37mO\033[0m"

PS=(" " $P1 $P2 $P3 $P4 $P5 $P6 $P7)
PNum=${#PS[*]}


clear
function DrawBox(){
local XSmall XBig YSmall YBig
((XSmall=PadX-2))
((YSmall=PadY-1))
((XBig=PadX+Width))
((YBig=PadY+Height))
for((i=XSmall;i<=XBig;i+=2))
do
echo -ne "\033[$YSmall;${i}H\033[42m[]\033[0m"
echo -ne "\033[$YBig;${i}H\033[42m[]\033[0m"
done

for((i=YSmall;i<=YBig;i++))
do
echo -ne "\033[$i;${XSmall}H\033[42m[]\033[0m"
echo -ne "\033[$i;${XBig}H\033[42m[]\033[0m"
done
echo
echo
}


function CordToKey(){
local x y Max
Max=100
x=$1
y=$2
((x+=Max))
((y+=Max))
echo $x$y
}

function Values(){
local i j
for((i=PadX;i<=PadX+Width;i++))
do
for((j=PadY;j<=PadY+Height;j++))
do
values[`CordToKey $i $j`]="$i|$j"
done
done
}

function GameOver(){
local x y
((x=PadX+Width/2-5))
((y=PadY+Height+2))
echo -e "\033[$y;${x}H \033[32mGame Over!\033[0m\n\n"
kill  $PPID
MoveXYExit
}

function NewP(){
local x y p v
while :
do
((x=RANDOM%Width+PadX))
((y=RANDOM%Height+PadY))
v=${values[`CordToKey $x $y`]}
if [[ $v =~ "\|" ]];then
((p=RANDOM%((PNum-1))+1))
echo -ne "\033[$y;${x}H${PS[$p]}"
values[`CordToKey $x $y`]="$p"
break
fi
done
}

function Moving(){
local X Y oldX oldY v i j sx sy
X=$1; Y=$2; oldX=$3; oldY=$4; v=$5
echo -ne "\033[$Y;${X}H$SnakeHead"
values[`CordToKey $X $Y`]="snake"
Snake $X $Y
echo -ne "\033[$oldY;${oldX}H$SnakeBody"
if [[ ${#v} != 1 ]];then
for((i=0;i<${#SnakeValue[*]};i+=2))
do
if [ "${SnakeValue[$i]}" != "" ];then
((j=i+1))
sx=${SnakeValue[$i]}
sy=${SnakeValue[$j]}
SnakeValue[$i]=""
SnakeValue[$j]=""
echo -ne "\033[$sy;${sx}H "
values[`CordToKey $sx $sy`]="$sx|$sy"
break
fi
done
else
((score+=v))
echo -ne "\033[$ScoreY;${ScoreX}H \033[32m Score: $score \033[0m"
NewP
fi

}

function Snake(){
SnakeValue[${#SnakeValue[*]}]=$1
SnakeValue[${#SnakeValue[*]}]=$2
}

function MoveXY(){
local  sig oldX oldY v
Init

trap "sig=26" 26
trap "sig=27" 27
trap "sig=28" 28
trap "sig=29" 29
trap "MoveXYExit" 30

while :
do
oldX=$X
oldY=$Y

case $sig in
28)((maxX=Width+PadX-1))
((X++))
v=${values[`CordToKey $X $Y`]}
[[ $X -gt $maxX || "$v" == "snake" ]] && GameOver
;;
29)((X--))
v=${values[`CordToKey $X $Y`]}
[[ $X -lt $PadX || "$v" == "snake" ]] && GameOver
;;
27)((maxY=Height+PadY-1))
((Y++))
v=${values[`CordToKey $X $Y`]}
[[ $Y -gt $maxY || "$v" == "snake" ]] && GameOver
;;
26)((Y--))
v=${values[`CordToKey $X $Y`]}
[[ $Y -lt $PadY || "$v" == "snake" ]] && GameOver
;;
esac
Moving $X $Y $oldX $oldY $v
sleep .$Speed
done
}

function Init(){
SnakeValue=()
DrawBox
Values
X=$SnakeX
Y=$SnakeY
Snake $X $Y
echo -ne "\033[$Y;${X}H$SnakeHead"
values[`CordToKey $X $Y`]="snake"
echo -ne "\033[$ScoreY;${ScoreX}H \033[32m Score: $score \033[0m"
NewP
NewP
NewP
}

function MoveXYExit(){
local y
((y=PadY+Height+2))
echo -e "\033[?25h\033[${y};0H"
echo
exit
}

function MoveSnakeExit(){
kill -30 $pid
stty $sTTY
MoveXYExit
}

function MoveSnake(){
local key  sig
pid=$1
sTTY=`stty -g`
echo -ne "\033[?25l"
trap "MoveSnakeExit" INT TERM
while :
do
sig=0
read -s -n 1 key
[[ "$key" == "A" ]] && sig=26
[[ "$key" == "B" ]] && sig=27
[[ "$key" == "C" ]] && sig=28
[[ "$key" == "D" ]] && sig=29
[[ "$key" == "q" ]] && MoveSnakeExit
[ $sig -ne 0 ] && kill -$sig  $pid
done
}

## Main ##
if [ "$1" == "MoveXY" ];then
MoveXY
else
bash $0 MoveXY &
MoveSnake $!  2>/dev/null
fi

CentOS5.4完美运行.

上个图