bet_lucky_number.php

<?php
ini_set('memory_limit', '256M');

function bet_lucky_number($server_seed_str, $client_seed_str, $client_nonce) {
	$str = $server_seed_str . $client_seed_str . '-' . $client_nonce;
//	$h = hash('SHA256', hash('SHA256', $str));
	$h = hash('SHA512', hash('SHA512', $str));
//	$h = hash('SHA512', $str);
//	$h = hash('SHA256', $str);
//	$h = 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff';
	
	$len = strlen($h);
	$i = 0;
	while ($i++ < intval($len/5 - 1)) {
		$num = intval(hexdec(substr($h, ($i-1)*5, 5)));
		if ($num < 1000000) {
			break;
		}
	}
	if ($num >= 1000000) {
		// 64/128 均可满足剩余>=3个字符
		$num = intval(hexdec(substr($h, $len - $len%5 - 1, 3)));
	}
	return $num;
}

/*
$server_seed = array(
  // https://just-dice.com/roll/29044704
  "mQJEGM2HghgaI7IZDrbYYI4w4E3xNE3YTRQonJvKwOrnJ54cYadBQiCOQ6.ukc5L",
  // https://just-dice.com/roll/29044705
  "DnHANN7cpuBcv6YIKtvTCbplF8F24gEDWlczDKM1mdaVMiMFmY8_mpSI3IaiD8sW",
  // https://just-dice.com/roll/22041405
  "6EKVW4Ao1q_xTWVymV8X8OUyvl4KJybsVaz0bcjJGZVghuKt2Doxqxqr.CssosBk",
);
$client_seed = array(
  "223434517352134465009941", "825410573020201379181667", "171399052445268835557164",
);

$server_seed = array(
  // https://just-dice.com/roll/28599257
	"IokUiyBcUH26OOJu72150pdnjHleFgMmD8MWzjql.JEcaOF4jeGhLy1drjnaywJg",
  // https://just-dice.com/roll/28999257
	"LefHlA8E.dKl.o2.w5jjCiMcAX_L5hkYlUHXeyx2Ybx58Ukk0casplS3Ddi.anhN",
  // https://just-dice.com/roll/28609297
  "yhqQEfCyi9uvidMJ3zQnVfNYQRouJ6_1SHvzjDpuSuD5qzZJ.gEycfomO4LZu3Oc",
);
$client_seed = array(
  "659666623882074681190398", "419818374356999990707280", "9381",
);

*/

$server_seed = array(
	"zXHYLuZqAccFaOjhUOMzAkSEEk9qsSfDkYm1ZAHNMcnRrcj8hlYbnON5g0liH8i4",
  "aBK4dAGlgsYXqc9FiM1JXGN5rLflLtUCJfh1NkdEO8n2NfRnSfWkS0j3Rihwr2Hr",
  "BHK4xBADjWCjI1A1OAqi8y9QrJbM5jSRBoXd7lhDlvs16VhzBd3pCzPfgb2qu79i",
);
$client_seed = array(
  "659666623882074681190398", "419818374356999990707280", "9381",
);


$size = 500000;
$points = array();
for($j = 0; $j < 3; $j++) {
	$points[$j] = array();
  for($i = 1; $i <= $size; $i++) {
	  $points[$j][] = bet_lucky_number($server_seed[$j], $client_seed[$j], $i) / 10000;
  }
}

//var_dump($points);

// echo tsv
// header
echo "date", "\t", "New York", "\t", "San Francisco", "\t", "Austin", "\n";
// body
$time = time() - 86400*$size;
$s0 = $s1 = $s2 = 0;
for($i = 0; $i < $size; $i++) {
//	echo date('Ymd', $time + 86400*$i), "\t";

  $s0 += ($points[0][$i] - 50);
  $s1 += ($points[1][$i] - 50);
  $s2 += ($points[2][$i] - 50);

  if ($i % 10 == 0) {
	  echo date('Ymd', $time + 86400*$i), "\t";
		echo $s0, "\t", $s1, "\t", $s2, "\n";
	}
}