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AuthorTopic: attack.php (V2) division by zero error  (Read 1023 times)

Jawz

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attack.php (V2) division by zero error
« on: December 12, 2009, 08:51:21 AM »
i get when attacking someone else

Warning: Division by zero in /home/mafia/public_html/attack.php on line 188

Warning: Division by zero in /home/mafia/public_html/attack.php on line 202

here is the code
Code: [Select]
<?php
$menuhide
=1;
$atkpage=1;
include 
"globals.php";

$_GET['ID'] == (int) $_GET['ID'];
if(!
$_GET['ID'])
{
print 
"WTF you doing, bro?";
$h->endpage();
exit;
}
else if(
$_GET['ID'] == $userid)
{
print 
"Only the crazy attack themselves.";
$h->endpage();
exit;
}
else if (
$ir['hp'] <= 1)
{
print 
"Only the crazy attack when their unconscious.<br />
<a href='index.php'>Back</a>"
;
$h->endpage();
exit;
}
else if (
$_SESSION['attacklost'] == 1)
{
print 
"Only the losers of all their EXP attack when they've already lost.<br />
<a href='index.php'>Back</a>"
;
$_SESSION['attacklost']=0;
$h->endpage();
exit;
}
//get player data
$youdata=$ir;
$q=$db->query("SELECT u.*,us.* FROM users u LEFT JOIN userstats us ON u.userid=us.userid WHERE u.userid={$_GET['ID']}");
$odata=$db->fetch_row($q);
$myabbr=($ir['gender']=="Male") ? "his" "her";
$oabbr=($ir['gender']=="Male") ? "his" "her";
if(
$ir['attacking'] && $ir['attacking'] != $_GET['ID'])
{
print 
"Bad, bad, bad girl.<br />
<a href='index.php'>Back</a>"
;
$_SESSION['attacklost']=0;
$h->endpage();
exit;
}
if(
$odata['hp'] == 1)
{
print 
"This player is unconscious.<br />
<a href='index.php'>&gt; Back</a>"
;
$h->endpage();
$_SESSION['attacking']=0;
$ir['attacking']=0;
$db->query("UPDATE users SET attacking=0 WHERE userid=$userid");
exit;
}
else if(
$odata['hospital'])
{
print 
"This player is in hospital.<br />
<a href='index.php'>&gt; Back</a>"
;
$h->endpage();
$_SESSION['attacking']=0;
$ir['attacking']=0;
$db->query("UPDATE users SET attacking=0 WHERE userid=$userid");
exit;
}
else if(
$ir['hospital'])
{
print 
"While in hospital you can't attack.<br />
<a href='hospital.php'>&gt; Back</a>"
;
$h->endpage();
$_SESSION['attacking']=0;
$ir['attacking']=0;
$db->query("UPDATE users SET attacking=0 WHERE userid=$userid");
exit;
}
else if(
$odata['jail'])
{
print 
"This player is in jail.<br />
<a href='index.php'>&gt; Back</a>"
;
$h->endpage();
$_SESSION['attacking']=0;
$ir['attacking']=0;
$db->query("UPDATE users SET attacking=0 WHERE userid=$userid");
exit;
}
else if(
$ir['jail'])
{
print 
"While in jail you can't attack.<br />
<a href='jail.php'>&gt; Back</a>"
;
$h->endpage();
$_SESSION['attacking']=0;
$ir['attacking']=0;
$db->query("UPDATE users SET attacking=0 WHERE userid=$userid");
exit;
}
else if(
$odata['travelling'])
{
print 
"That player is travelling.<br />
<a href='index.php'>&gt; Back</a>"
;
$h->endpage();
$_SESSION['attacking']=0;
$ir['attacking']=0;
$db->query("UPDATE users SET attacking=0 WHERE userid=$userid");
exit;
}
print 
"<table width=100%><tr><td colspan=2 align=center>";
if(
$_GET['wepid'])
{
if(
$_SESSION['attacking']==&& $ir['attacking'] == 0)
{
if (
$youdata['energy'] >= $youdata['maxenergy']/2)
{

$youdata['energy']-= floor($youdata['maxenergy']/2);
$me=floor($youdata['maxenergy']/2);
$db->query("UPDATE users SET energy=energy- {$me} WHERE userid=$userid");
$_SESSION['attacklog']="";
$_SESSION['attackdmg']=0;
}
else
{
print 
"You can only attack someone when you have 50% energy";
$h->endpage();
exit;
}
}
$_SESSION['attacking']=1;
$ir['attacking']=$odata['userid'];
$db->query("UPDATE users SET attacking={$ir['attacking']} WHERE userid=$userid");
$_GET['wepid'] = (int) $_GET['wepid'];
$_GET['nextstep'] = (int) $_GET['nextstep'];
//damage

if($_GET['wepid'] != $ir['equip_primary'] && $_GET['wepid'] != $ir['equip_secondary'])
{
print 
"Stop trying to abuse a game bug. You can lose all your EXP for that.<br />
<a href='index.php'>&gt; Home</a>"
;
$db->query("UPDATE users SET exp=0 where userid=$userid",$c);
die(
"");
}
$qo=$db->query("SELECT i.* FROM items i   WHERE i.itmid={$_GET['wepid']}");
$r1=$db->fetch_row($qo);
$mydamage=(int) (($r1['weapon']*$youdata['strength']/($odata['guard']/1.5))*(rand(8000,12000)/10000));
$hitratio=max(10,min(60*$ir['agility']/$odata['agility'],95));
 if(
rand(1,100) <= $hitratio )
{
$q3=$db->query("SELECT i.armor FROM items i   WHERE itmid={$odata['equip_armor']} ORDER BY rand()");
if(
$db->num_rows($q3))
{
$mydamage-=$db->fetch_single($q3);
}
if(
$mydamage < -100000) { $mydamage=abs($mydamage); }
else if(
$mydamage 1) { $mydamage=1; }
$crit=rand(1,40);
if(
$crit==17) { $mydamage*=rand(20,40)/10; } else if($crit==25 or $crit == 8) { $mydamage/=(rand(20,40)/10); } 
$mydamage=round($mydamage);
$odata['hp']-=$mydamage;
if(
$odata['hp']==1) { $odata['hp']=0;$mydamage+=1; }
$db->query("UPDATE users SET hp=hp-$mydamage WHERE userid={$_GET['ID']}");
print 
"<font color=red>{$_GET['nextstep']}. Using your {$r1['itmname']} you hit {$odata['username']} doing $mydamage damage ({$odata['hp']})</font><br />\n";
$_SESSION['attackdmg']+=$mydamage;
$_SESSION['attacklog'].="<font color=red>{$_GET['nextstep']}. Using {$myabbr} {$r1['itmname']} {$ir['username']} hit {$odata['username']} doing $mydamage damage ({$odata['hp']})</font><br />\n";
}
else
{
print 
"<font color=red>{$_GET['nextstep']}. You tried to hit {$odata['username']} but missed ({$odata['hp']})</font><br />\n";
$_SESSION['attacklog'].="<font color=red>{$_GET['nextstep']}. {$ir['username']} tried to hit {$odata['username']} but missed ({$odata['hp']})</font><br />\n";
}
if(
$odata['hp'] <= 0)
{
$odata['hp']=0;
$_SESSION['attackwon']=$_GET['ID'];
$db->query("UPDATE users SET hp=0 WHERE userid={$_GET['ID']}");
print 
"<br />
<b>What do you want to do with {$odata['username']} now?</b><br />
<form action='attackwon.php?ID={$_GET['ID']}' method='post'><input type='submit' value='Mug Them' /></form>
<form action='attackbeat.php?ID={$_GET['ID']}' method='post'><input type='submit' value='Hospitalize Them' /></form>
<form action='attacktake.php?ID={$_GET['ID']}' method='post'><input type='submit' value='Leave Them' /></form>"
;
}
else {
//choose opp gun
$eq=$db->query("SELECT i.* FROM  items i  WHERE i.itmid IN({$odata['equip_primary']}, {$odata['equip_secondary']})");
if(
mysql_num_rows($eq) == 0)
{
$wep="Fists";
$dam=(int)((((int) ($odata['strength']/$ir['guard']/100)) +1)*(rand(8000,12000)/10000));
}
else
{
$cnt=0;
while(
$r=$db->fetch_row($eq))
{
$enweps[]=$r;
$cnt++;
}
$weptouse=rand(0,$cnt-1);
$wep=$enweps[$weptouse]['itmname'];
$dam=(int) (($enweps[$weptouse]['weapon']*$odata['strength']/($youdata['guard']/1.5))*(rand(8000,12000)/10000));
}
$hitratio=max(10,min(60*$odata['agility']/$ir['agility'],95));
if(
rand(1,100) <= $hitratio)
{
$q3=$db->query("SELECT i.armor FROM items i   WHERE itmid={$ir['equip_armor']} ORDER BY rand()");
if(
$db->num_rows($q3))
{
$dam-=$db->fetch_single($q3);
}
if(
$dam < -100000) { $dam=abs($dam); }
else if(
$dam 1) { $dam=1; }
$crit=rand(1,40);
if(
$crit==17) { $dam*=rand(20,40)/10; } else if($crit==25 or $crit == 8) { $dam/=(rand(20,40)/10); } 
$dam=round($dam);
$youdata['hp']-=$dam;
if (
$youdata['hp']==1) { $dam+=1$youdata['hp']=0; }
$db->query("UPDATE users SET hp=hp-$dam WHERE userid=$userid");
$ns=$_GET['nextstep']+1;
print 
"<font color=blue>{$ns}. Using $oabbr $wep {$odata['username']} hit you doing $dam damage ({$youdata['hp']})</font><br />\n";
$_SESSION['attacklog'].="<font color=blue>{$ns}. Using $oabbr $wep {$odata['username']} hit {$ir['username']} doing $dam damage ({$youdata['hp']})</font><br />\n";
}
else
{
$ns=$_GET['nextstep']+1;
print 
"<font color=red>{$ns}. {$odata['username']} tried to hit you but missed ({$youdata['hp']})</font><br />\n";
$_SESSION['attacklog'].="<font color=blue>{$ns}. {$odata['username']} tried to hit {$ir['username']} but missed ({$youdata['hp']})</font><br />\n";
}
if(
$youdata['hp'] <= 0)
{
$youdata['hp']=0;
$_SESSION['attacklost']=1;
$db->query("UPDATE users SET hp=0 WHERE userid=$userid");
print 
"<form action='attacklost.php?ID={$_GET['ID']}' method='post'><input type='submit' value='Continue' />";
}
}
}
else if (
$odata['hp'] < 5)
{
print 
"You can only attack those who have health";
$h->endpage();
exit;
}
else if (
$ir['gang'] == $odata['gang'] && $ir['gang'] > 0)
{
print 
"You are in the same gang as {$odata['username']}! What are you smoking today dude!";
$h->endpage();
exit;
}
else if (
$youdata['energy'] < $youdata['maxenergy']/2)
{
print 
"You can only attack someone when you have 50% energy";
$h->endpage();
exit;
}
else if (
$youdata['location'] != $odata['location'])
{
print 
"You can only attack someone in the same location!";
$h->endpage();
exit;
}
else
{
}
print 
"</td></tr>";
if(
$youdata['hp'] <= || $odata['hp'] <= 0)
{
print 
"</table>";
}
else
{
$vars['hpperc']=round($youdata['hp']/$youdata['maxhp']*100);
$vars['hpopp']=100-$vars['hpperc'];
$vars2['hpperc']=round($odata['hp']/$odata['maxhp']*100);
$vars2['hpopp']=100-$vars2['hpperc'];


$mw=$db->query("SELECT i.* FROM  items i  WHERE i.itmid IN({$ir['equip_primary']}, {$ir['equip_secondary']})");
print 
"<tr><td colspan=2 align='center'>Attack with:<br />";
if(
$db->num_rows($mw) > 0)
{
while(
$r=$db->fetch_row($mw))

{
if(!
$_GET['nextstep']) { $ns=1; } else { $ns=$_GET['nextstep']+2; }
if(
$r['itmid']==$ir['equip_primary'])
{
print 
"<b>Primary Weapon:</b> ";
}
if(
$r['itmid']==$ir['equip_secondary'])
{
print 
"<b>Secondary Weapon:</b> ";
}
print 
"<a href='attack.php?nextstep=$ns&amp;ID={$_GET['ID']}&amp;wepid={$r['itmid']}'>{$r['itmname']}</a><br />";
}
}
else
{
print 
"You have nothing to fight with.";
}
print 
"</table>";
print 
"<table width='50%' align='center'><tr><td align=right>Your Health: </td><td><img src=greenbar.png width={$vars['hpperc']} height=10><img src=redbar.png width={$vars['hpopp']} height=10></td><tr><td align=right>Opponents Health:  </td><td><img src=greenbar.png width={$vars2['hpperc']} height=10><img src=redbar.png width={$vars2['hpopp']} height=10></td></tr></table>";
}
$h->endpage();
?>
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Danny696

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Re: attack.php (V2) division by zero error
« Reply #1 on: December 12, 2009, 09:16:40 AM »
line 188: $dam=(int)((((int) ($odata['strength']/$ir['guard']/100)) +1)*(rand(8000,12000)/10000));  means the strength or guard is 0
line 202: $hitratio=max(10,min(60*$odata['agility']/$ir['agility'],95));  means the agility of one is 0
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Gori

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Re: attack.php (V2) division by zero error
« Reply #2 on: December 12, 2009, 10:05:27 AM »
so how do u fix it?

i have the same problem
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Danny696

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Re: attack.php (V2) division by zero error
« Reply #3 on: December 12, 2009, 12:13:17 PM »
Make sure there stats are 1 or above.
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