Random data generator

Introduction

Get random value from a random generator, built-in methods of phaser.

• Author: Richard Davey

Usage

Random data generator

• Pre-defined random data generator

  var rnd = Phaser.Math.RND;
  

• New random generator

  var rnd = new Phaser.Math.RandomDataGenerator(seed);
  

Set seed

• Set seed in game config for pre-defined random data generator

  var config = {
      // ...
      seed: seed,
      // ...
  }
  var game = new Phaser.Game(config);
  

  • seed :
    • An array of string, like [(Date.now() * Math.random()).toString()]
• Set seed

  rnd.init(seed);
  

  • seed : A string or an array of string.

Get random value

• Random real number between 0 and 1.

  var value = rnd.frac();
  

• Random integer between 0 and 2^32.

  var value = rnd.integer();
  

• Random real number between 0 and 2^32.

  var value = rnd.real();
  

• Random integer between and including min and max.

  var value = rnd.between(min, max);
  // var value = rnd.integerInRange(min, max);
  

• Random real number between min and max.

  var value = rnd.realInRange(min, max);
  

• Random real number between -1 and 1.

  var value = rnd.normal();
  

• Random angle between -180 and 180.

  var angle = rnd.angle();
  

• Random rotation in radians, between -3.141 and 3.141.

  var angle = rnd.rotation();
  

• Random timestamp between min and max.

  var timestamp = rnd.timestamp(min, max);
  

  • min : Default value is the beginning of 2000.
  • max : Default value is the end of 2020.
• UUID

  var uuid = rnd.uuid();
  

• Random sign value

  var sign = rnd.sign();
  

  • sign : -1 or 1

Get random item

• Random element from within the given array.

  var item = rnd.pick(arr);
  

• Random element from within the given array, favoring the earlier entries.

  var item = rnd.weightedPick(arr);
  

Shuffle array

var arr = rnd.shuffle(arr);