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vichan/inc/functions/dice.php

62 lines
1.6 KiB
PHP

<?php
namespace Vichan\Functions\Dice;
/* Die rolling:
* If "dice XdY+/-Z" is in the email field (where X or +/-Z may be
* missing), X Y-sided dice are rolled and summed, with the modifier Z
* added on. The result is displayed at the top of the post.
*/
function email_dice_roll($post) {
global $config;
if(strpos(strtolower($post->email), 'dice%20') === 0) {
$dicestr = str_split(substr($post->email, strlen('dice%20')));
// Get params
$diceX = '';
$diceY = '';
$diceZ = '';
$curd = 'diceX';
for($i = 0; $i < count($dicestr); $i ++) {
if(is_numeric($dicestr[$i])) {
$$curd .= $dicestr[$i];
} else if($dicestr[$i] == 'd') {
$curd = 'diceY';
} else if($dicestr[$i] == '-' || $dicestr[$i] == '+') {
$curd = 'diceZ';
$$curd = $dicestr[$i];
}
}
// Default values for X and Z
if($diceX == '') {
$diceX = '1';
}
if($diceZ == '') {
$diceZ = '+0';
}
// Intify them
$diceX = intval($diceX);
$diceY = intval($diceY);
$diceZ = intval($diceZ);
// Continue only if we have valid values
if($diceX > 0 && $diceY > 0) {
$dicerolls = array();
$dicesum = $diceZ;
for($i = 0; $i < $diceX; $i++) {
$roll = rand(1, $diceY);
$dicerolls[] = $roll;
$dicesum += $roll;
}
// Prepend the result to the post body
$modifier = ($diceZ != 0) ? ((($diceZ < 0) ? ' - ' : ' + ') . abs($diceZ)) : '';
$dicesum = ($diceX > 1) ? ' = ' . $dicesum : '';
$post->body = '<table class="diceroll"><tr><td><img src="'.$config['dir']['static'].'d10.svg" alt="Dice roll" width="24"></td><td>Rolled ' . implode(', ', $dicerolls) . $modifier . $dicesum . '</td></tr></table><br/>' . $post->body;
}
}
}