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Note about cross-category ID sharing, and similarity to text charcodes.
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>DavidJCobb (Note about cross-category ID sharing, and similarity to text charcodes.) |
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{{bulbapedia2|Index number}}
{{wikipedia2|Identification (information)}}
In the Pokémon games, an '''identifier''' (also '''index number''' or '''ID number''') is a number used within the game's code to identify pieces of data. Pokémon, items, locations, moves, and abilities all have unique identifiers; in each game, no two Pokémon have the same identifier. Pieces of data in different categories, however, may share identifiers -- a Pokemon and an item may use the same identifier, for instance. Identifiers may be likened to character codes in [[Wikipedia:Character encoding|computer text]].
In the [[bp:Generation I|first generation]] (Red/Blue and Yellow versions), the Pokémon's identifiers did not match the PokéDex numbers assigned to them (PokéDex number 1 is assigned to Bulbasaur, while identifier 1 is assigned to Rhydon). The identifier, not the PokéDex number, must be used for [[cheating device|cheat codes]] and in-game tricks like the [[Old Man Trick]] or [[Ditto Trick]]. This was fixed in the [[bp:Generation II|second generation]]. Item identifiers are relatively constant throughout generations (i.e. item ID 1 is always the [[bp:Master Ball|Master Ball]]).
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