X-Git-Url: https://git.mxchange.org/?p=core.git;a=blobdiff_plain;f=inc%2Fclasses%2Fmain%2Frng%2Fclass_RandomNumberGenerator.php;h=fb74071e3931f5cb57ec2ff386960ad4fe8dd658;hp=0580b87db376c9b974aac8e367d50addadd72908;hb=d26e71af1e28dc1429823bdec244df6303f9b2fb;hpb=fc5010729854b1f9c9bc60249460d092ea6694b6

diff --git a/inc/classes/main/rng/class_RandomNumberGenerator.php b/inc/classes/main/rng/class_RandomNumberGenerator.php
index 0580b87d..fb74071e 100644
--- a/inc/classes/main/rng/class_RandomNumberGenerator.php
+++ b/inc/classes/main/rng/class_RandomNumberGenerator.php
@@ -2,11 +2,11 @@
 /**
  * A standard random number generator
  *
- * @author		Roland Haeder <webmaster@ship-simu.org>
+ * @author		Roland Haeder <webmaster@shipsimu.org>
  * @version		0.0.0
- * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 Core Developer Team
+ * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2015 Core Developer Team
  * @license		GNU GPL 3.0 or any newer version
- * @link		http://www.ship-simu.org
+ * @link		http://www.shipsimu.org
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -47,6 +47,11 @@ class RandomNumberGenerator extends BaseFrameworkSystem {
 	 */
 	private $rndStrLen = 0;
 
+	/**
+	 * Self instance
+	 */
+	private static $selfInstance = NULL;
+
 	/**
 	 * Protected constructor
 	 *
@@ -65,11 +70,20 @@ class RandomNumberGenerator extends BaseFrameworkSystem {
 	 * @return	$rngInstance	An instance of this random number generator
 	 */
 	public static final function createRandomNumberGenerator (FrameworkInterface $extraInstance = NULL) {
-		// Get a new instance
-		$rngInstance = new RandomNumberGenerator();
+		// Is self instance set?
+		if (is_null(self::$selfInstance)) {
+			// Get a new instance
+			$rngInstance = new RandomNumberGenerator();
 
-		// Initialize the RNG now
-		$rngInstance->initRng($extraInstance);
+			// Initialize the RNG now
+			$rngInstance->initRng($extraInstance);
+
+			// Set it "self"
+			self::$selfInstance = $rngInstance;
+		} else {
+			// Use from self instance
+			$rngInstance = self::$selfInstance;
+		}
 
 		// Return the instance
 		return $rngInstance;
@@ -91,7 +105,7 @@ class RandomNumberGenerator extends BaseFrameworkSystem {
 		$this->extraNumber = ($this->prime * $this->prime / pow(pi(), 2));
 
 		// Seed mt_rand()
-		mt_srand((double) sqrt(microtime(true) * 100000000 * $this->extraNumber));
+		mt_srand((double) sqrt(microtime(TRUE) * 100000000 * $this->extraNumber));
 
 		// Set the server IP to cluster
 		$serverIp = 'cluster';