BYR Achieve · 镜像论坛

值得学习。代码： #!/bin/bash #-------------CopyRight------------- # Name:Snake # Version Number:1.00 # Type:game # Language:bash shell # Date:2005-07-28 # Author:BitBull # Email:wengjianyi@tom.com #------------Environment------------ # Terminal: column 80 line 24 # Linux 2.6.9 i686 # GNU Bash 3.00.15 #----------------------------------- #--------------variable-------------- #game variable level=1 score=0 life=3 length=8 runtime=0.15 fruitspare=8 #game kernel variable x=2 #init snake x=2 y=2 y=2 direction=0 shead=1 #snake's head in snake[] stail=1 #snake's tail in snake[] mappoint=1 #point exactmap[] bottom state=on #snake run or stop run=off #if run=on,snake shadow is working displaypid="" controlpid="" #game temp file;if your system's /tmp unwrite or unread, you can change to home cpath="/tmp/snake_ctrl_pid.tmp" dpath="/tmp/snake_disply_pid.tmp" vartmp="/tmp/snake_var_tmpfile.tmp" #rename kill sign pause=57 newgame=58 gameover=59 gameexit=60 up=61 down=62 left=63 right=64 #---------------array--------------- #init exactmap exactmap=() #map format: y x HowLong "-- or |" ( 1=| 2=-- ) map1=("6 14 6 2" "6 50 6 2" "14 14 6 2" "14 50 6 2") map2=("2 16 10 1" "2 48 10 1" "7 32 10 1" "7 64 10 1") map3=("4 16 24 2" "10 16 24 2" "16 16 24 2" "4 16 11 1") map4=("10 4 34 2" "4 20 12 1" "4 40 12 1" "4 60 12 1") map5=("5 10 29 2" "15 10 29 2" "5 16 7 1" "7 60 6 1" ) map6=("8 4 35 2" "2 50 5 1" "10 4 36 2" "11 30 5 1" ) #where is fruit? format:y x fruit1=("14 10" "13 56" "2 40" "3 8" "17 50" "18 76" "14 30" "6 66") fruit2=("4 14" "2 40" "14 48" "12 68" "9 30" "18 6" "3 76" "18 78") fruit3=("7 14" "18 4" "15 40" "11 24" "5 18" "9 56" "3 76" "17 64") fruit4=("11 10" "11 62" "9 38" "9 72" "6 58" "14 26" "17 58" "3 6") fruit5=("6 14" "16 14" "3 40" "6 22" "14 58" "12 34" "8 50" "9 62") fruit6=("2 52" "7 40" "7 60" "4 70" "11 28" "11 32" "15 22" "17 78" ) #--------------function-------------- #draw screen function Draw_line () { local i=1 while [ "$i" -le "80" ] do echo -ne "\33[${1};${i}H*" (( i++ )) done } function Draw_row () { local i=2 while [ "$i" -le "22" ] do echo -ne "\33[${i};${1}H*" (( i++ )) done } function Draw_help () { echo -ne "\33[7;31m\33[24;1HPlay:w s a d Pause:p Newgame:n Quit:q -- CopyRight -- 2005-07-28 BitBull --\33[0m" } function Screen () { echo -ne "\33[37;44m" Draw_line 1 Draw_line 19 Draw_line 23 Draw_row 1 Draw_row 80 echo -ne "\33[0m" Draw_help } #init function Init () { stty_save=$(stty -g) #backup stty clear trap "Game_exit;" 2 15 stty -echo echo -ne "\33[?25l" #hidden cursor } #exit function Game_exit () { kill -9 $displaypid>/dev/null 2>&1 #kill display function #restore stty $stty_save stty echo clear trap 2 15 echo -ne "\33[?25h\33[0;0H\33[0m" rm -f $cpath $dpath >/dev/null 2>&1 exit 0 } #draw level score life SnakeLong function Draw_ls () { echo -ne "\33[31m" echo -ne "\33[21;10HLevel=$level Score=$score \ Life=$life Snake=$length" echo -ne "\33[0m" } #output info to player function Info () { title="$1" content="$2" greeting="$3" printf "\33[31m" printf "\33[11;20H ------------------------------------------- " printf "\33[12;20H| ======>$title<====== |" printf "\33[13;20H| $content |" printf "\33[14;20H| ======>$greeting<====== |" printf "\33[15;20H ------------------------------------------- " printf "\33[0m" } #square:draw square in screen.you can define X Y COLOR LETTER function Square () { local color=$1;line=$2;row=$3;pic=$4 echo -ne "\33[34444;${color}m\33[${line};${row}H${pic}\33[0m" } #show fruit function Show_fruits () { local red=45;fruitxy="" for (( i = 0; i < 8; i++ )) do fruitxy="$(printf "\${fruit%s[$i]}" $level)" eval Square $red $fruitxy '@@' done } #exact map:calculate mapXY into exactmap[] function Exact_map () { local mapin xtmp ytmp long line_row for (( i = 0; i < 4; i++ )) do mapin="$(printf "\${map%s[$i]}" $level)" xtmp=$(eval echo $mapin|cut -d" " -f2) ytmp=$(eval echo $mapin|cut -d" " -f1) long=$(eval echo $mapin|cut -d" " -f3) line_row=$(eval echo $mapin|cut -d" " -f4) exactmap[$mappoint]="$ytmp $xtmp" (( mappoint++ )) #judge mapline | or -- if [[ "$line_row" == "1" ]] then for (( j = 0; j <= long; j++ )) do (( ytmp++ )) exactmap[$mappoint]="$ytmp $xtmp" (( mappoint++ )) done else for (( k = 0; k <= long; k++ )) do (( xtmp += 2 )) exactmap[$mappoint]="$ytmp $xtmp" (( mappoint++ )) done fi done } #show map function Show_map () { local mapxy="";blue=46 Exact_map for (( i = 1; i < mappoint; i++ )) do eval Square $blue ${exactmap[$i]} '[]' done } #test snake is ok ? function Test_snake () { #snake self for (( i = 1; i <= length; i++ )) do if [[ "${snake[$i]}" == "$y $x" ]] then Dead fi done #borderline if [[ $x -lt 2 || $x -gt 79 || $y -lt 2 || $y -gt 18 ]] then Dead fi #map line for (( i = 0; i < mappoint; i++ )) do if [[ "${exactmap[$i]}" == "$y $x" ]] then Dead fi done } #eat function Eat () { local fruitxy="";xyvalue="";nowarray="" for (( i = 0; i < 8; i++ )) do fruitxy="$(printf "\${fruit%s[$i]}" $level)" xyvalue="$(eval echo $fruitxy)" if [[ "$xyvalue" = "$y $x" ]] then nowarray="$(printf "fruit%s[$i]=" $level)" eval $nowarray"" (( score++ )) (( fruitspare-- )) Draw_ls fi done if [[ $fruitspare == 0 ]] then Next_level fi } #if snake dead function Dead () { state=off if (( "$life" == "0" )) then kill -$gameover $controlpid else (( life-- )) Info "SnakeDead" "OH!shit!You are a idiot!" "F**k You" sleep 1 New_game fi } #next level function Next_level () { (( level++ )) (( length += 6 )) if [[ $level -gt 6 ]] then Info "Well Done" " WOW!Congratulation! " "Thank You" sleep 4 kill -$gameexit $controlpid else Info "Well Done" "Level Update! Go Level $level" ".Loading." sleep 3 New_game fi } #newgame function New_game () { kill -9 $displaypid >/dev/null 2>&1 if [[ "$1" == "over" ]] then exec $0 else echo "$level $score $life $length $runtime" > $vartmp exec $0 display fi } #game over function Game_over () { local y_n Info "Game Over" "Do you want replay?<y/n>" "Thank You" while read -s -n 1 y_n do case $y_n in [yY] ) New_game over ;; [nN] ) Game_exit ;; * ) continue ;; esac done } #main function Main () { local green=42;count=0 case $direction in "$up" ) (( y-- )) ;; "$down" ) (( y++ )) ;; "$left" ) (( x -= 2 )) ;; "$right" ) (( x += 2 )) ;; *): ;; esac Test_snake Eat #go go go Square $green $y $x \#\# snake[$shead]="$y $x" (( shead++ )) if [[ "$shead" == "$length" ]] then shead=1 run=on #snake shadow run fi #snake shadow,it can erase snake's tail,otherwise,snake will very long! if [[ "$run" == "on" ]] then Square 0 ${snake[$stail]} " " (( stail++ )) if [[ "$stail" == "$length" ]] then stail=1 fi fi } #state change:off=snake stop.on=snake run function State_change () { if [[ $state == "on" ]] then state=off else state=on fi } #display function Display () { trap "State_change;" $pause trap "direction=$up;" $up trap "direction=$down;" $down trap "direction=$left;" $left trap "direction=$right;" $right echo $$ > $dpath read controlpid < $cpath if [[ -e $vartmp ]] then read level score life length runtime< $vartmp rm -f $vartmp fi #drow all Init Screen Draw_ls Show_fruits Show_map Main #game main loop while : do if [[ ( "$state" == "on" ) && ( "$direction" != "0" ) ]] then Main sleep $runtime fi done } #control function Control () { local sign="" echo $$ > $cpath trap "Game_over;" $gameover trap "Game_exit;" $gameexit while read -s -n 1 key do case $key in [wW]) sign="$up" ;; [sS]) sign="$down" ;; [aA]) sign="$left" ;; [dD]) sign="$right" ;; [pP]) sign="$pause" ;; [nN]) New_game over ;; [qQ]) Game_exit ;; * ) continue 2 ;; esac eval displaypid=$(cat $dpath) kill -$sign $displaypid done } #------------main---------------- if [[ "$1" == "display" ]] then Display exit else bash $0 display& Control exit fi

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