Math.random vs game.rnd

[Le Twitch]

Math.floor(Math.random() * 2); 

 

VS

 

game.rnd.intergerInRange(0, 1);

 

how does "game.rnd" work compared to "Math.random"? 

 

which one is preferred?

[lewster32]

game.rnd is an instance of Phaser.RandomDataGenerator which as well as having a lot of nice convenience methods, is also a seeded pseudo-random number generator, meaning you can get repeatable results from it. See this example: http://examples.phaser.io/_site/view_full.html?d=misc&f=repeatable+random+numbers.js&t=repeatable%20random%20numbers (check the developer console to see the output)

[Le Twitch]

game.rnd is an instance of Phaser.RandomDataGenerator which as well as having a lot of nice convenience methods, is also a seeded pseudo-random number generator, meaning you can get repeatable results from it. See this example: http://examples.phaser.io/_site/view_full.html?d=misc&f=repeatable+random+numbers.js&t=repeatable%20random%20numbers (check the developer console to see the output)

 

interesting. that's pretty cool

[lewster32]

It's great if you want to create 'random' levels which always play out the same, or use 'random' events in multiplayer games and ensure the same things happen on each client. Minecraft's world generation is driven by a seeded PRNG as well, which is why the same level seed will always produce the same virtually infinite world.

[Le Twitch]

It's great if you want to create 'random' levels which always play out the same, or use 'random' events in multiplayer games and ensure the same things happen on each client. Minecraft's world generation is driven by a seeded PRNG as well, which is why the same level seed will always produce the same virtually infinite world.

 

such an awesome feature. i'm surprised no one has asked about it yet til now

[hoskope]

Yeah, this is great. I created my own random and find out later that it's inside framework