50/50

<html>

<head>
<title>50/50</title>
<style>

    .win {
        color:green;
        font-weight:bold;
    }

    .lose {
        color:red;
        font-weight:bold;
    }

    </style>
</head>

  <?php

include 'globals.php';

 /*
 * Designed and developed by Script47
 * Module idea given by Brodiep
 * The code here (named "5050" or "50/50") is provided "as is" with no warranty or gurantee of safety to existing code.
 * 50/50 has been fully tested and is found to work as intended.
 * 50/50 is released freely under the GNU License. Feel free to modify as you wish, as long as this comment block remains atuynd remains untouched.
 * This module is free, if you have purchased it from anyone, demand a full refund.
 */

$_GET['action'] = isset($_GET['action']) && ctype_alpha($_GET['action']) ? trim($_GET['action']) : null;

switch ($_GET['action']) {

  case "placeBetMoney":
      placeBetMoney();
      break;

  case "placeBetCrystals":
      placeBetCrystals();
      break;

    default:
        index();
        break;
    }

function index() {

    echo '<h3>50/50</h3>';

    echo '<a href="index.php">Home</a>';

    echo '<br/>';
    echo '<br/>';

    echo 'Here you can bet sums of money up to 5K or 100 crystals, this game is full of chance do it at <strong>your own risk.</strong></b><br/>';

    ?>

<br/>
<br/>

<form action='5050.php?action=placeBetMoney' method='post'>
<strong>Money:</strong> <input type='number' name='money'><br/>
<input type='submit' value='Go!'><br/>
</form>
<br/>
<form action='5050.php?action=placeBetCrystals' method='post'>
<strong>Crystals:</strong> <input type='number' name='crystals'><br/>
<input type='submit' value='Go!'><br/>
</form>

    <?php

    }

function placeBetMoney() {

    global $db, $ir, $h;

if ($_POST['money'] > $ir['money']) {
    echo '<br/>';
    echo "<font color='red'>You don't have that much money!</br></font";
    echo '<a href="5050.php">Back</a>';
    $h->endpage();
    exit();
}

$maxMoney = 5000;

if ($_POST['money'] > $maxMoney) {
    echo '<br/>';
    echo "<font color='red'>Maximum amount of money is $5000!</br></p>";
    echo '<a href="5050.php">Back</a>';
    $h->endpage();
    exit();
}

if (!ctype_digit($_POST['money'])) {
    echo '<br/>';
    echo 'The Money field refers to a numerical value, please go back and try again.<br/>';
    echo '<a href="5050.php">Back</a>';
    $h->endpage();
    exit();
} else {
    $money = abs(intval($_POST['money']));
}

$chance = rand(1, 2);
$winnings = $_POST['money'] + $_POST['money'];

if ($chance == 2) {
    echo '<br/>';
    echo '<p class="lose">Unlucky, you lost $' .$_POST['money']. '<br/></p>';
    echo "<a href='5050.php'>Back</a>";
    $db->query("UPDATE `users` SET money=money-$money WHERE userid={$_SESSION['userid']}");
} else {
    echo '<br/>';
    echo '<p class="win">Congratulations! You win $' .$winnings. '<br/></p>';
    echo "<a href='5050.php'>Back</a>";
    $db->query("UPDATE `users` SET money=money+$money WHERE userid={$_SESSION['userid']}");
}
}

function placeBetCrystals() {

    global $db, $ir, $h;

if ($_POST['crystals'] > $ir['crystals']) {
    echo '<br/>';
    echo "<p class='lose'>You don't have that many crystals!</br></p>";
    echo '<a href="5050.php">Back</a>';
    $h->endpage();
    exit();
}

$maxCrystals = 100;

if ($_POST['crystals'] > $maxCrystals) {
    echo '<br/>';
    echo "<p class='lose'>Maximum amount of crystals is 100!</br></p>";
    echo '<a href="5050.php">Back</a>';
    $h->endpage();
    exit();
}

if (!ctype_digit($_POST['crystals'])) {
    echo '<br/>';
    echo '<p class="lose">The Crystals field refers to a numerical value, please go back and try again.<br/></p>';
    echo '<a href="5050.php">Back</a>';
    $h->endpage();
    exit();
} else {
    $crystals = abs(intval($_POST['crystals']));
}

$chance = rand(1, 2);
$winnings = $_POST['crystals'] + $_POST['crystals'];

if ($chance == 2) {
    echo '<br/>';
    echo '<p class="lose">Unlucky, you lost ' .$_POST['crystals']. ' crystals</p>';
    echo "<a href='5050.php'>Back</a>";
    $db->query("UPDATE `users` SET crystals=crystals-$crystals WHERE userid={$_SESSION['userid']}");
} else {
    echo '<br/>';
    echo '<p class="win">Congratulations! You win ' .$winnings. ' crystals<br/></p>';
    echo '<br/>';
    echo "<a href='5050.php'>Back</a>";
    $db->query("UPDATE `users` SET crystals=crystals+$crystals WHERE userid={$_SESSION['userid']}");
}
}

$h->endpage();
?>