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Pseudorandom number generation: Difference between revisions
Pseudorandom number generation (view source)
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== What | == What a pseudo-random number generator is == | ||
A pseudo-random number generator is an electronic device or software's attempt at creating a sufficiently random number. There are limitless ways of accomplishing this. The degree of sufficient randomness depends on the ability to predict the next result of the algorithm. | A pseudo-random number generator is an electronic device or software's attempt at creating a sufficiently random number. There are limitless ways of accomplishing this. The degree of sufficient randomness depends on the ability to predict the next result of the algorithm. | ||
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'''More information on this topic can be found at: {{wp|Pseudo-random_number}} | '''More information on this topic can be found at: {{wp|Pseudo-random_number}} | ||
== How are | == How pseudo-random numbers are generated in Pokémon == | ||
Let ''Seed'' be a number between 0 and 0xFFFFFFFF or the ''Result'' of a previous call to the equation. | Let ''Seed'' be a number between 0 and 0xFFFFFFFF or the ''Result'' of a previous call to the equation. | ||
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This algorithm is used for the following: | This algorithm is used for the following: | ||
* Encrypting | * Encrypting Pokémon data in the save file. | ||
* Generate the [[ | * Generate the [[personality value]] of a wild encountered Pokémon. | ||
* Generate the [[ | * Generate the [[individual values]] of a wild encountered Pokémon. | ||
* Determining the species of a wild | * Determining the species of a wild Pokémon. | ||
* Determining the lottery number. | * Determining the lottery number. | ||
== Alternative | == Alternative pseudo-random number generator == | ||
The game also uses a different algorithm to alternate, reroll, or modify a previously randomly generated value. The algorithm works in the same nature, however the equation changes to: | The game also uses a different algorithm to alternate, reroll, or modify a previously randomly generated value. The algorithm works in the same nature, however the equation changes to: | ||
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This algorithm is used for the following: | This algorithm is used for the following: | ||
* Shiny | * Shiny Pokémon Ranger {{p|Manaphy}} egg restriction. | ||
* Determining the species of a | * Determining the species of a Pokémon swarm. | ||
* Determining the | * Determining the Pokémon in the [[Safari Zone]]. | ||
* Mystery Gift shiny restriction for Type 1. | * Mystery Gift shiny restriction for Type 1. | ||