<?
//functions.php
function BuildLinkBack($page){
	return "/?page=$page";
}
function alert($userid, $subject, $message){
	$message = addslashes($message);
	$subject = addslashes($subject);
	mysql_query("INSERT INTO alerts (receiver_id, subject, message, thetime) values('$userid', '$subject', '$message', NOW())") or print(mysql_error() . " " . __FILE__ . " #" . __LINE__);
}
function format($number, $dec = 0, $dec_sep = ""){
	return number_format((int)$number, $dec, $dec_sep, ",");
}
function clean_str($str){
	$str = stripslashes($str);
	//$str = htmlspecialchars($str);
	return $str;
}
function updateCharacter($column, $value, $id) {
	mysql_query("UPDATE characters SET {$column} = {$value} WHERE id = '{$id}'");
}
function updateBank($column, $value, $id) {
	mysql_query("UPDATE bank SET {$column} = {$value} WHERE owner_id = '{$id}'");
}
function attackRoll($id) {
	$CharacterInfo = GetCharacterInfo($id);
	$WeaponInfo = GetWeaponInfo($CharacterInfo);
	
	return(mt_rand($WeaponInfo['min_damage'], $WeaponInfo['max_damage'] + ceil($CharacterInfo['strength'] / 2)));
}
function npcAttackRoll($attVal, $attValMax, $str) {
	return(mt_rand($attVal, $attValMax + ceil($str / 2)));
}
function defendRoll($id) {
	$CharacterInfo = GetCharacterInfo($id);
	$ArmourInfo = GetArmourInfo($CharacterInfo);
	
	return(mt_rand($ArmourInfo['value'], ($ArmourInfo['value'] + ceil($CharacterInfo['strength'] / 2))));
}
function npcDefendRoll($defVal, $str) {
	return(mt_rand($defVal, ($defVal + ceil($str / 2))));
}
function addExp($id, $exp) {
	$CharInfo = mysql_fetch_array(mysql_query("SELECT * FROM characters WHERE id = '{$id}'"));
	if($exp + $CharInfo['exp'] >= floor(($CharInfo['level'] * 1.1) * 500)) {
		//	do a level up.
		$rolloverEXP = ($exp + $CharInfo['exp']) - floor(($CharInfo['level'] * 1.1) * 500);
		$extraHP = mt_rand(5, 10 + (ceil($CharInfo['strength'] / 2)));
		updateCharacter("exp", $rolloverEXP, $id);
		updateCharacter("level", "(level + 1)", $id);
		updateCharacter("max_hp", "(max_hp + {$extraHP})", $id);
		updateCharacter("now_hp", "(now_hp + {$extraHP})", $id);
		if(mt_rand(1, 8) == 1)
			updateCharacter("strength", "(strength + 1)", $id);
		$extraMoney = mt_rand(90, 150);
		updateCharacter("money", "(money + {$extraMoney}", $id);
		
		$CharInfo = mysql_fetch_array(mysql_query("SELECT * FROM characters WHERE id = '{$id}'"));
		if($CharInfo['exp'] >= floor(($CharInfo['level'] * 1.1) * 500))		//	Double check for extra levels
			addExp($CharInfo['id'], 0);
	} else
		updateCharacter("exp", "(exp + {$exp})", $id);
}
function TakeMoney($amount){
	global $sess_user_id;
	$sess_user_money -= $amount;
	mysql_query("UPDATE `users` set money = '$sess_user_money' where user_id = '$sess_user_id'") or print(mysql_error() . " " . __FILE__ . " #" . __LINE__);
	return "$amount KD was taken from you";
}
function FineMoney($amount, $punishment) {
	//from person first
	global $CharacterInfo;
	if($CharacterInfo['money'] >= $amount){
		updateCharacter("money", "(money - {$amount})", $CharacterInfo['id']);
		$message = "You have been fined {$amount}.";
	} elseif($punishment == false) {
		$message = "You were going to get a {$amount} KD fine, but we'll let you off this time!";
	} elseif($punishment) {
		$bankInfo = GetBankInfo($CharacterInfo['id']);
		if($bankInfo['money'] >= $amount){
			updateBank("money", "(money - {$amount})", $CharacterInfo['id']);
			$message = "You have been fined {$amount} KD";
		} else {
			if(($CharacterInfo['money'] + $bankInfo['money']) >= $amount){
				$amount -= $bankInfo['money'];
				updateBank("money", "0", $CharacterInfo['id']);
				updateCharacter("money", "(money - {$amount})", $CharacterInfo['id']);
				$message = "You have been fined $amount KD";
			} else {
				//drain both accoutns & add 100 kd debit
				updateBank("money", "-100", $CharacterInfo['id']);
				updateCharacter("money", "0", $CharacterInfo['id']);
				$message = "You have been fined $amount KD, but because you did not have the funds your account has been drained and you are now 100 KD in debit";
			}
		}
	}
	GiveMoney(5, $amount);
	alert(5, "Somebody got a fine", "{$CharacterInfo['name']} got an {$amount} fine.");
	return $message;
}
function GiveMoney($user_id, $amount){
	updateBank("money", "(money + {$amount})", $user_id);
}
function TakeHP($user_id, $take){
	if($take < 0) $take = 0;
	updateCharacter("now_hp", "(now_hp - {$take})", $user_id);
}
function GetPercentage($low, $high){
	$per = $low / $high;
	$per = $per * 100;
	$per = round($per,2);
	return $per;
}
function NumberIsPercentOf($number, $percent){ // 30% of what number is 90?
	$percent = $percent / 100;
	$value = $number / $percent;
	return $value;
}
function PercentOfNumberIs($percent, $number){ // 30% of 90 is what number?
	$percent = $percent / 100;
	$percent = round($percent,2);
	$value = $number * $percent;
	return $value;
}
function GetCharacterInfo($id){
	$GetInfo = mysql_query("SELECT * FROM characters WHERE owner_id = '{$id}'") or print(mysql_error() . " " . __FILE__ . " #" . __LINE__);
	return mysql_fetch_array($GetInfo);
}
function GetBankInfo($id){
	$GetInfo = mysql_query("SELECT * FROM bank WHERE owner_id = '{$id}'") or print(mysql_error() . " " . __FILE__ . " #" . __LINE__);
	return mysql_fetch_array($GetInfo);
}
function GetWeaponInfo($charInfo){
	$GetWeapon = mysql_query("SELECT * FROM weapons where id = '{$charInfo['equiped_weapon']}'") or print(mysql_error() . " " . __FILE__ . " #" . __LINE__);
	return mysql_fetch_array($GetWeapon);
}
function GetArmourInfo($charInfo){
	$GetArmour = mysql_query("SELECT * FROM armour where id = '{$charInfo['equiped_armour']}'") or print(mysql_error() . " " . __FILE__ . " #" . __LINE__);
	return mysql_fetch_array($GetArmour);
}
function GetIP(){
    global $REMOTE_ADDR;
    global $HTTP_X_FORWARDED_FOR, $HTTP_X_FORWARDED, $HTTP_FORWARDED_FOR, $HTTP_FORWARDED;
    global $HTTP_VIA, $HTTP_X_COMING_FROM, $HTTP_COMING_FROM;
    if (empty($REMOTE_ADDR)) {
        if (!empty($_SERVER) && isset($_SERVER['REMOTE_ADDR'])) {
            $REMOTE_ADDR = $_SERVER['REMOTE_ADDR'];
        }
        else if (!empty($_ENV) && isset($_ENV['REMOTE_ADDR'])) {
            $REMOTE_ADDR = $_ENV['REMOTE_ADDR'];
        }
        else if (@getenv('REMOTE_ADDR')) {
            $REMOTE_ADDR = getenv('REMOTE_ADDR');
        }
    }
    if (empty($HTTP_X_FORWARDED_FOR)) {
        if (!empty($_SERVER) && isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
            $HTTP_X_FORWARDED_FOR = $_SERVER['HTTP_X_FORWARDED_FOR'];
        }
        else if (!empty($_ENV) && isset($_ENV['HTTP_X_FORWARDED_FOR'])) {
            $HTTP_X_FORWARDED_FOR = $_ENV['HTTP_X_FORWARDED_FOR'];
        }
        else if (@getenv('HTTP_X_FORWARDED_FOR')) {
            $HTTP_X_FORWARDED_FOR = getenv('HTTP_X_FORWARDED_FOR');
        }
    }
    if (empty($HTTP_X_FORWARDED)) {
        if (!empty($_SERVER) && isset($_SERVER['HTTP_X_FORWARDED'])) {
            $HTTP_X_FORWARDED = $_SERVER['HTTP_X_FORWARDED'];
        }
        else if (!empty($_ENV) && isset($_ENV['HTTP_X_FORWARDED'])) {
            $HTTP_X_FORWARDED = $_ENV['HTTP_X_FORWARDED'];
        }
        else if (@getenv('HTTP_X_FORWARDED')) {
            $HTTP_X_FORWARDED = getenv('HTTP_X_FORWARDED');
        }
    }
    if (empty($HTTP_FORWARDED_FOR)) {
        if (!empty($_SERVER) && isset($_SERVER['HTTP_FORWARDED_FOR'])) {
            $HTTP_FORWARDED_FOR = $_SERVER['HTTP_FORWARDED_FOR'];
        }
        else if (!empty($_ENV) && isset($_ENV['HTTP_FORWARDED_FOR'])) {
            $HTTP_FORWARDED_FOR = $_ENV['HTTP_FORWARDED_FOR'];
        }
        else if (@getenv('HTTP_FORWARDED_FOR')) {
            $HTTP_FORWARDED_FOR = getenv('HTTP_FORWARDED_FOR');
        }
    }
    if (empty($HTTP_FORWARDED)) {
        if (!empty($_SERVER) && isset($_SERVER['HTTP_FORWARDED'])) {
            $HTTP_FORWARDED = $_SERVER['HTTP_FORWARDED'];
        }
        else if (!empty($_ENV) && isset($_ENV['HTTP_FORWARDED'])) {
            $HTTP_FORWARDED = $_ENV['HTTP_FORWARDED'];
        }
        else if (@getenv('HTTP_FORWARDED')) {
            $HTTP_FORWARDED = getenv('HTTP_FORWARDED');
        }
    }
    if (empty($HTTP_VIA)) {
        if (!empty($_SERVER) && isset($_SERVER['HTTP_VIA'])) {
            $HTTP_VIA = $_SERVER['HTTP_VIA'];
        }
        else if (!empty($_ENV) && isset($_ENV['HTTP_VIA'])) {
            $HTTP_VIA = $_ENV['HTTP_VIA'];
        }
        else if (@getenv('HTTP_VIA')) {
            $HTTP_VIA = getenv('HTTP_VIA');
        }
    }
    if (empty($HTTP_X_COMING_FROM)) {
        if (!empty($_SERVER) && isset($_SERVER['HTTP_X_COMING_FROM'])) {
            $HTTP_X_COMING_FROM = $_SERVER['HTTP_X_COMING_FROM'];
        }
        else if (!empty($_ENV) && isset($_ENV['HTTP_X_COMING_FROM'])) {
            $HTTP_X_COMING_FROM = $_ENV['HTTP_X_COMING_FROM'];
        }
        else if (@getenv('HTTP_X_COMING_FROM')) {
            $HTTP_X_COMING_FROM = getenv('HTTP_X_COMING_FROM');
        }
    }
    if (empty($HTTP_COMING_FROM)) {
        if (!empty($_SERVER) && isset($_SERVER['HTTP_COMING_FROM'])) {
            $HTTP_COMING_FROM = $_SERVER['HTTP_COMING_FROM'];
        }
        else if (!empty($_ENV) && isset($_ENV['HTTP_COMING_FROM'])) {
            $HTTP_COMING_FROM = $_ENV['HTTP_COMING_FROM'];
        }
        else if (@getenv('HTTP_COMING_FROM')) {
            $HTTP_COMING_FROM = getenv('HTTP_COMING_FROM');
        }
    }
    if (!empty($REMOTE_ADDR)) {
        $direct_ip = $REMOTE_ADDR;
    }
    $proxy_ip     = '';
    if (!empty($HTTP_X_FORWARDED_FOR)) {
        $proxy_ip = $HTTP_X_FORWARDED_FOR;
    } else if (!empty($HTTP_X_FORWARDED)) {
        $proxy_ip = $HTTP_X_FORWARDED;
    } else if (!empty($HTTP_FORWARDED_FOR)) {
        $proxy_ip = $HTTP_FORWARDED_FOR;
    } else if (!empty($HTTP_FORWARDED)) {
        $proxy_ip = $HTTP_FORWARDED;
    } else if (!empty($HTTP_VIA)) {
        $proxy_ip = $HTTP_VIA;
    } else if (!empty($HTTP_X_COMING_FROM)) {
        $proxy_ip = $HTTP_X_COMING_FROM;
    } else if (!empty($HTTP_COMING_FROM)) {
        $proxy_ip = $HTTP_COMING_FROM;
    }
    if (empty($proxy_ip)) {
        return $direct_ip;
    } else {
        $is_ip = preg_match('|^([0-9]{1,3}\.){3,3}[0-9]{1,3}|', $proxy_ip, $regs = array());
        if ($is_ip && (count($regs) > 0)) {
            return $regs[0];
        } else {
            return FALSE;
        }
    }
}
function generateVerifyChecksum() {
	do {
		$testID = md5(mt_rand());
	} while (!is_verify_unique($testID));
	
	return $testID;
}
function is_verify_unique( $the_id ) {
	$result = mysql_query("SELECT COUNT(id) FROM verify WHERE checksum = '$the_id'") or print(mysql_error() . " " . __FILE__ . " #" . __LINE__);
	if (mysql_result($result, 0) == 0) {
		return true;
	} else {
		return false;
	}
}
# performs a javascript redirection
function JSRedirect($url, $timer = 0) {
	if ($timer == 0) {
		print "<script language=\"javascript\">
		window.location = '$url';
	</script>";
	} else {
		$timerN = $timer * 1000;
		print "<p>Now Redirecting, please wait $timer seconds.<br />
		or <a href=\"$url\">click here</a>.
		<script language=\"javascript\">
		setTimeout('Redirect()', $timerN);
		function Redirect() {
			window.location = '$url';
		}
		</script>";
	}
}
?>