Php > Contest Related

CTF-Judge, better auto controls

CTF-Judge, better auto controls

<?php 
  

    //  this function is colled only on first turn of the mach... if it doesn't find white 
    //  and red robot script dirs, it goes back to the start page, WITHOUT any msg... sorry ;) 
     
    function start($white, $red) { 
        if (!file_exists($white) or !file_exists($red)) die(header('Location: start.php')); 
        $w=array('n'=>$white, 'x'=>0, 'y'=>1, 'i'=>'STARTWHITE', 's'=>array(), 'd'=>0, 't'=>-1, 'l'=>0); 
        $r=array('n'=>$red, 'x'=>29, 'y'=>27, 'i'=>'STARTRED', 's'=>array(), 'd'=>0, 't'=>-1, 'l'=>0); 
        @unlink("$w[n]/data.txt"); 
        @unlink("$r[n]/data.txt"); 
        return array('w'=>$w, 'r'=>$r, 'c'=>'w', 'b'=>array(93=>'lime', 806=>'lime')); 
    } 



    //  this function is colled to execute the robot scripts. include is placed in the separate 
    //  function so that robot scripts don't mess up our variables. if u want to run the scripts 
    //  from the command line (like the rules say) change include() line into smth like example 
    //  NOTE: u must NOT use die() in ur robot scripts if u don't change include() to exec() 
     
    function run() { 
        include('capture.php'); 
    //  exec("/path/to/php capture.php"); 
    } 



    //  checks if position ($x, $y) is on the grid 
     
    function valid($x, $y) { 
        return $x>=0 and $x<30 and $y>=0 and $y<30; 
    } 


     
    //  it returns 1 if there is a sticky trap on $k ($k=$x+30*$y), 
    //  2 if there is a teleport trap on $k, and nothing if there is not a trap on $k 
     
    function trap($w, $r, $k) { 
        if (in_array($k, $w['s']) or in_array($k, $r['s'])) return 1; 
        if ($k==$w['t'] or $k==$r['t']) return 2; 
    } 


     
    //  it sets the global var $winner to the text that say that smb wins 

    function winner($c, $p) { 
        global $winner; 
        $winner="<hr /><b><big><font color=".($c=='w'?'black':'red')."> $p[n] WINS!"; 
    } 


     
    //  this is the main logic function... it processes one move from move.txt... 

    function process($w, $r, $c, $n, $b, $p, $m) { 
        $mx=array('T'=>0, 'U'=>0, 'L'=>-1, 'R'=>+1, 'D'=>0); 
        $my=array('T'=>0, 'U'=>-1, 'L'=>0, 'R'=>0, 'D'=>+1); 
        switch ($m[0]) { 
            case 'M': 
                $p['i']='MOVEBAD'; 
                if (valid($i=$p['x']+$mx[$m[1]], $j=$p['y']+$my[$m[1]])) { 
                    $p['x']=$i; 
                    $p['y']=$j; 
                    $p['i']='MOVEOK'; 
                    if (trap($w, $r, $k=$i+30*$j)==1) $p['i']='STUCK1'; 
                    if (trap($w, $r, $k)==2) { 
                        $p['x']=rand(0, 29); 
                        $p['y']=rand(0, 29); 
                        $p['i']="T$p[x],$p[y]"; 
                    } 
                    if ($c=='w' and $k==806 or $c=='r' and $k==93) winner($c, $p); 
                } 
                break; 
            case 'R': 
                $p['i']='MOVEOK'; 
                break; 
            case 'T': 
                $p['i']='TRAPBAD'; 
                $k=(($i=$p['x']+$mx[$m[1]])+30*($j=$p['y']+$my[$m[1]])); 
                if ($m[1]!='T' and valid($i, $j) and !trap($w, $r, $k) and count($p['s'])<7 and $k!=93 and $k!=806) { 
                    $p['i']='TRAPOK'; 
                    $p['s'][]=$k; 
                    $b[$k]='yellow'; 
                } 
                if ($m[1]=='T' and valid($i, $j) and !trap($w, $r, $k) and $p['t']==-1 and $k!=93 and $k!=806) { 
                    $p['i']='TRAPOK'; 
                    $p['t']=$k; 
                    $b[$k]='blue'; 
                } 
                break; 
            case 'L': 
                $p['i']='LBAD'; 
                if ($p['l']<5) { 
                    $i=$$n; 
                    $p['i']="L$i[x],$i[y]"; 
                    $p['l']++; 
                } 
                break; 
            case 'D': 
                $p['i']='DEATHMISSED'; 
                if ($p['d']<1) { 
                    $k=$$n; 
                    if (!valid(($i=$p['x'])+$mx[$m[1]], ($j=$p['y'])+$my[$m[1]])) winner($n, $$n); 
                    while (valid($i+=$mx[$m[1]], $j+=$my[$m[1]])) if ($k['x']==$i and $k['y']==$j) winner($c, $p); 
                    $p['d']++; 
                } 
                break; 
        } 
        return array('w'=>$w, 'r'=>$r, 'c'=>$c, 'n'=>$n, 'b'=>$b, 'p'=>$p); 
    } 



    //  this function returns javascript that changes colors on the grid, and moves teams around... 

    function grid($b, $f, $p='') { 
        foreach ($b as $k=>$v) $p.="parent.grid.document.getElementById('c$k').style.background='$v';\n"; 
        foreach ($f as $k=>$v) $p.="parent.grid.document.i$k.src='$v.gif';\n"; 
        return "<script language='javascript'>\n$p\n</script>\n"; 
    } 



    //  outputs all the info u see in the right frame, and some controls (check box and a button) 

    function control($w, $r, $c, $p, $m) { 
        global $winner, $timeOut; 
        if ( !isset($timeOut) )$timeOut = 250; 
        return "<link href='global.css' rel='stylesheet' type='text/css' /> <form name=forma> 
            <input type='checkbox' name=next ".((!isset($_GET['next']) or @$winner)?'':'checked')." /> auto 
            <input type=textfield name=timeOut value=$timeOut>Auto Time-out 
            <input type='submit' value='next' /></form><hr />\n<script language='javascript'> 
            setTimeout('if (document.forma.next.checked) document.forma.submit() ', document.forma.timeOut.value);\n</script> 
            <table border=1 cellspacing=1 cellpadding=1 bordercolor=white width='100%'> 
            <tr><td class=meta> <td class=white><b>$w[n]<td class=red><b>$r[n] 
            <tr><td class=meta>location<td class=white>$w[x],$w[y]<td class=red>$r[x],$r[y] 
            <tr><td class=meta>sticky<td class=white>".count($w['s'])."<td class=red>".count($r['s'])." 
            <tr><td class=meta>teleport<td class=white>".($w['t']>=0?1:0)."<td class=red>".($r['t']>=0?1:0)." 
            <tr><td class=meta>death.ray<td class=white>$w[d]<td class=red>$r[d] 
            <tr><td class=meta>locators<td class=white>$w[l]<td class=red>$r[l] 
            <tr><td class=meta>move.txt<td class=white>".($c=='w'?$m:'.')."<td class=red>".($c=='r'?$m:'.')." 
            <tr><td class=meta>input.txt<td colspan=2 class=".($c=='w'?'white':'red').">$p[i]</table>".(@$winner); 
    } 



    //  main() function ;)) 

    function main() { 
        if (isset($_POST['white'])) { 
            extract(start($_POST['white'], $_POST['red'])); 
        } else { 
            extract(unserialize(fread(fopen('data.txt', 'r'), 999))); 
        } 
        $n=(($c=='w')?'r':'w'); 
        $p=$$c; 
        if ($p['i']=='STUCK1') { 
            $p['i']='STUCK'; 
            $$c=$p; 
            $m='??'; 
        } else { 
            chdir($p['n']); 
            fwrite(fopen('input.txt', 'w'), "$p[i]\n"); 
            run(); 
            $m=fread(fopen('move.txt', 'r'), 99); 
            chdir(".."); 
            $i=array('w'=>$w['x']+30*$w['y'], 'r'=>$r['x']+30*$r['y']); 
            extract(process($w, $r, $c, $n, $b, $p, $m)); 
            $$c=$p; 
            $f=array($i['w']=>'blank', $i['r']=>'blank', $w['x']+30*$w['y']=>'white', $r['x']+30*$r['y']=>'red'); 
            echo grid($b, $f); 
        } 
        echo control($w, $r, $c, $$c, $m); 
        fwrite(fopen('data.txt', 'w'), serialize(array('w'=>$w, 'r'=>$r, 'c'=>$n, 'b'=>array()))); 
    } 

    main(); 

?>