pokemon-showdown/mods/gen2
Guangcong Luo e8b60c1e90 Fix Gen 1-2 DV/EV/shiny/gender validation
The old code tried to validate by changing incorrect values to correct
values, but had lots of bugs. Even if it didn't have bugs, it would have
various flaws like stats being different from what you would expect from
the teambuilder, so the new code just tells you when your HP DV,
shininess, gender, and Hidden Power type are inconsistent with your
other DVs.

(The one exception is SD Thick Club Marowak, which still automatically
fixes its Atk IV, since we still don't have teambuilder UI for that.)
2017-03-01 02:13:08 -05:00
..
abilities.js
formats-data.js
items.js
learnsets.js
moves.js Fix Triple Hit mechanics in Gen 2 (#3299) 2017-02-26 02:11:44 -05:00
README.md
rulesets.js Fix Gen 1-2 DV/EV/shiny/gender validation 2017-03-01 02:13:08 -05:00
scripts.js Fix Amnesia in Gen 2 randbat 2017-02-10 17:11:06 -05:00
statuses.js Gen II: Actually fix stalling moves 2016-12-24 15:09:25 -05:00
typechart.js

Gen 2

Introduction

Generation 2 includes the games Pokémon Silver, Gold, and Crystal. Stadium 2 may also be counted, but for simulating purposes the mechanics of choice are those of Crystal. In this metagame we find 251 Pokémon, three of which are banned to Ubers, that have no abilities, basically can only use Leftovers as an item, have poor attacking moves, no coverage, and Rest and Sleep Talk which can use Rest. Therefore we find a very stally meta, for the defense overcomes the offense easily.

EVs and IVs

Since Generation 2 was still a Game Boy game and it's retrocompatible with Generation 1, the Special EV and IV was still used for both Special Attack and Special Defense. IVs were still called DVs and they ranged from 0 to 15, each giving 2 points to the stat. The DVs decided the gender, male to female ratio, shinyness, Hidden Power base power and type, and Unown's letter. The EVs could all still be maxed as happened with Stat Experience in Generation 1.

Hidden Power

Hidden Power is an excellent coverage move and it's decided by a Pokémon's DVs. The type was decided with the following operation: 4 * (atkDV % 4) + (defDV % 4) Which gives as a number from 0 to 16, giving us the index in the type table to use. The Hidden Power base power was decided with the following formula: Math.floor((5 * ((spcDV >> 3) + (2 * (speDV >> 3)) + (4 * (defDV >> 3)) + (8 * (atkDV >> 3))) + (spcDV > 2 ? 3 : spcDV)) / 2 + 31); The DVs are shifted 3 positions, taking thus the most important byte, thus having no value under 8 DVs and a value on 8 and higher. The most important DV was attack and special.

Critical Hits

Critical hits ignore defensive boosts but not defensive drops.

Status

Sleep lasts 1-5 turns and you the counter is not reset upon switch.