poplaurl.blogg.se

1. #Psuedo random rgp generator algorithm how to#
2. #Psuedo random rgp generator algorithm software#
3. #Psuedo random rgp generator algorithm series#

So, when the game was ported to other platforms, there was no PS2 system clock to check! This resulted in every player having the same exact seed. When the game was originally released on the PS2, the seed used for RNG was based on the system's internal clock. If you didn’t call this function, everyone who plays your game could end up with the same seed and as such, have the same outcomes for all randomly generated content! This actually happened fairly recently with a port of a very famous AAA RPG series. The randomize() function in GameMaker Studio randomizes the seed every time you run your game. So if you are using Game Maker Studio as well, and you do NOT want to use the same seed (which for this section we don’t), you will need to make sure you call the randomize() function before you do your RNG code. Since I am using GameMaker Studio as my dev environment, it is important to note that by default, GameMaker Studio will always use the same seed unless specifically told otherwise.

#Psuedo random rgp generator algorithm series#

We are going to start simple by generating a series of numbers that range from 0 - 9, and printing them to the screen. However, if you are interested in doing so, I will link to some documentation at the end of the blog. Rarely would you ever need to write your own random generation functions. As usual, I will be using GameMaker Studio as my dev environment, but pretty much every programming language has similar functions built in.

#Psuedo random rgp generator algorithm how to#

In this blog, we will go over a couple of different examples of how to use PRNG, and how to control the seed. You can use the same seed every time to help track down bugs, and to easily replicate generation outcomes over and over for testing. Pseudo random is extremely useful because it can be controlled. Considering that the data required to generate the random numbers is predefined, this means the generation is “pseudo random." If the seed never changes, the result of generation never changes.

Generally, this means that the computer is using a “seed” and generating numbers based on that seed.

So, when generating random numbers, the computer is following the same algorithm to generate the numbers. This is because computers are deterministic.

#Psuedo random rgp generator algorithm software#

Technically speaking, computer software is really only capable of PRNG, as computers are mostly incapable of generating a truly random number. Or, more accurately, pseudo-random number generation (PRNG). Today, I want to talk to you about random number generation (RNG).