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Clarify how Yellow updated catch rates for Gen 2 items

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Rangi 2021-10-15 17:10:57 -04:00
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commit 81f0cacefb
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@ -340,12 +340,12 @@ NUM_TMS EQU const_value - TM01 - 2 ; discount ITEM_C3 and ITEM_DC
> - $AA = 170: `POLKADOT_BOW` is for Jigglypuff > - $AA = 170: `POLKADOT_BOW` is for Jigglypuff
> - $B4 = 180: `BRICK_PIECE` is for Machop > - $B4 = 180: `BRICK_PIECE` is for Machop
> >
> Yellow was also being developed then, and it did the reverse, altering some catch rates to correspond to appropriate Gen 2 items: > Yellow was also being developed then, and it did the reverse, altering some Pokémon's data after they're caught to correspond to appropriate Gen 2 items:
> >
> - Starter Pikachu's catch rate became 163 = $A3 for `LIGHT_BALL` > - Starter Pikachu's catch rate byte is overwritten with 163 = $A3 for `LIGHT_BALL`
> - Wild Kadabra's catch rate became 96 = $60 for `TWISTEDSPOON` > - Wild-caught Kadabra's catch rate byte is overwritten with 96 = $60 for `TWISTEDSPOON`
> - Wild Dragonair's catch rate became 27 = $1B for `PROTEIN` >
> - Wild Dragonite's catch rate became 9 = $09 for `ANTIDOTE` > (Yellow also directly changed Dragonair's catch rate to 27 and Dragonite's to 9, but this seems to have been only for adjusting their difficulty, since those meaninglessly correspond to `PROTEIN` and `ANTIDOTE`.)
> >
> Most catch rates were left as gaps in the item list, and transformed into held items via the `TimeCapsule_CatchRateItems` table in [data/items/catch_rate_items.asm](https://github.com/pret/pokecrystal/blob/master/data/items/catch_rate_items.asm). For example, the 52 Pokémon with catch rate 45 would hold the gap `ITEM_2D`, except that gets transformed into `BITTER_BERRY`. > Most catch rates were left as gaps in the item list, and transformed into held items via the `TimeCapsule_CatchRateItems` table in [data/items/catch_rate_items.asm](https://github.com/pret/pokecrystal/blob/master/data/items/catch_rate_items.asm). For example, the 52 Pokémon with catch rate 45 would hold the gap `ITEM_2D`, except that gets transformed into `BITTER_BERRY`.
> >