feebas.py

#!/usr/bin/env python3

TILE_DATA = (
    (0x09,0x12),(0x0a,0x12),(0x0b,0x12),(0x0c,0x12),(0x0d,0x12),(0x0e,0x12),(0x0f,0x12),(0x10,0x12),(0x11,0x12),(0x12,0x12),(0x13,0x12),(0x14,0x12),(0x15,0x12),(0x16,0x12),(0x17,0x12),(0x18,0x12),(0x19,0x12),(0x1a,0x12),
    (0x09,0x13),(0x0a,0x13),(0x0b,0x13),(0x0c,0x13),(0x0d,0x13),(0x0e,0x13),(0x0f,0x13),(0x10,0x13),(0x11,0x13),(0x12,0x13),(0x13,0x13),(0x14,0x13),(0x15,0x13),(0x16,0x13),(0x17,0x13),(0x18,0x13),(0x19,0x13),(0x1a,0x13),
    (0x09,0x14),(0x0a,0x14),(0x0b,0x14),(0x0c,0x14),(0x0d,0x14),(0x0e,0x14),(0x0f,0x14),(0x10,0x14),(0x11,0x14),(0x12,0x14),(0x13,0x14),(0x14,0x14),(0x15,0x14),(0x16,0x14),(0x17,0x14),            (0x19,0x14),(0x1a,0x14),
    (0x09,0x15),(0x0a,0x15),(0x0b,0x15),            (0x0d,0x15),(0x0e,0x15),(0x0f,0x15),(0x10,0x15),(0x11,0x15),(0x12,0x15),(0x13,0x15),(0x14,0x15),(0x15,0x15),(0x16,0x15),(0x17,0x15),(0x18,0x15),(0x19,0x15),(0x1a,0x15),
    (0x09,0x16),(0x0a,0x16),(0x0b,0x16),(0x0c,0x16),(0x0d,0x16),(0x0e,0x16),(0x0f,0x16),(0x10,0x16),(0x11,0x16),(0x12,0x16),(0x13,0x16),(0x14,0x16),(0x15,0x16),(0x16,0x16),(0x17,0x16),(0x18,0x16),(0x19,0x16),(0x1a,0x16),
    (0x09,0x17),(0x0a,0x17),(0x0b,0x17),(0x0c,0x17),(0x0d,0x17),(0x0e,0x17),(0x0f,0x17),(0x10,0x17),(0x11,0x17),(0x12,0x17),(0x13,0x17),(0x14,0x17),(0x15,0x17),(0x16,0x17),(0x17,0x17),(0x18,0x17),(0x19,0x17),(0x1a,0x17),
    (0x09,0x18),(0x0a,0x18),(0x0b,0x18),(0x0c,0x18),(0x0d,0x18),(0x0e,0x18),(0x0f,0x18),(0x10,0x18),(0x11,0x18),(0x12,0x18),(0x13,0x18),(0x14,0x18),(0x15,0x18),(0x16,0x18),(0x17,0x18),(0x18,0x18),(0x19,0x18),(0x1a,0x18),
    (0x09,0x19),(0x0a,0x19),(0x0b,0x19),(0x0c,0x19),(0x0d,0x19),(0x0e,0x19),(0x0f,0x19),(0x10,0x19),(0x11,0x19),(0x12,0x19),(0x13,0x19),(0x14,0x19),(0x15,0x19),(0x16,0x19),(0x17,0x19),(0x18,0x19),(0x19,0x19),(0x1a,0x19),
    (0x09,0x1a),(0x0a,0x1a),(0x0b,0x1a),(0x0c,0x1a),(0x0d,0x1a),(0x0e,0x1a),(0x0f,0x1a),(0x10,0x1a),(0x11,0x1a),(0x12,0x1a),(0x13,0x1a),(0x14,0x1a),(0x15,0x1a),(0x16,0x1a),(0x17,0x1a),(0x18,0x1a),(0x19,0x1a),(0x1a,0x1a),
    (0x09,0x1b),(0x0a,0x1b),(0x0b,0x1b),(0x0c,0x1b),(0x0d,0x1b),(0x0e,0x1b),            (0x10,0x1b),(0x11,0x1b),(0x12,0x1b),(0x13,0x1b),(0x14,0x1b),(0x15,0x1b),(0x16,0x1b),(0x17,0x1b),(0x18,0x1b),(0x19,0x1b),(0x1a,0x1b),
    (0x09,0x1c),(0x0a,0x1c),(0x0b,0x1c),(0x0c,0x1c),(0x0d,0x1c),(0x0e,0x1c),(0x0f,0x1c),(0x10,0x1c),(0x11,0x1c),(0x12,0x1c),(0x13,0x1c),(0x14,0x1c),(0x15,0x1c),(0x16,0x1c),(0x17,0x1c),(0x18,0x1c),(0x19,0x1c),(0x1a,0x1c),
    (0x09,0x1d),(0x0a,0x1d),(0x0b,0x1d),(0x0c,0x1d),(0x0d,0x1d),(0x0e,0x1d),(0x0f,0x1d),(0x10,0x1d),                                                                                    (0x18,0x1d),(0x19,0x1d),(0x1a,0x1d),
    (0x09,0x1e),(0x0a,0x1e),(0x0b,0x1e),(0x0c,0x1e),(0x0d,0x1e),(0x0e,0x1e),(0x0f,0x1e),(0x10,0x1e),                                                                                                (0x19,0x1e),(0x1a,0x1e),
    (0x09,0x1f),(0x0a,0x1f),(0x0b,0x1f),(0x0c,0x1f),(0x0d,0x1f),(0x0e,0x1f),(0x0f,0x1f),(0x10,0x1f),                                                                                    (0x18,0x1f),(0x19,0x1f),(0x1a,0x1f),
    (0x09,0x20),(0x0a,0x20),                        (0x0d,0x20),(0x0e,0x20),(0x0f,0x20),(0x10,0x20),                                                                                    (0x18,0x20),(0x19,0x20),(0x1a,0x20),
    (0x09,0x21),(0x0a,0x21),                        (0x0d,0x21),(0x0e,0x21),(0x0f,0x21),(0x10,0x21),                                                                                    (0x18,0x21),(0x19,0x21),(0x1a,0x21),
    (0x09,0x22),(0x0a,0x22),(0x0b,0x22),(0x0c,0x22),(0x0d,0x22),(0x0e,0x22),(0x0f,0x22),(0x10,0x22),                                                                                    (0x18,0x22),(0x19,0x22),(0x1a,0x22),
    (0x09,0x23),(0x0a,0x23),(0x0b,0x23),(0x0c,0x23),(0x0d,0x23),(0x0e,0x23),(0x0f,0x23),(0x10,0x23),                                                                                    (0x18,0x23),(0x19,0x23),(0x1a,0x23),
    (0x09,0x24),(0x0a,0x24),(0x0b,0x24),(0x0c,0x24),(0x0d,0x24),(0x0e,0x24),(0x0f,0x24),(0x10,0x24),(0x11,0x24),(0x12,0x24),(0x13,0x24),(0x14,0x24),(0x15,0x24),(0x16,0x24),(0x17,0x24),(0x18,0x24),(0x19,0x24),(0x1a,0x24),
    (0x09,0x25),(0x0a,0x25),(0x0b,0x25),(0x0c,0x25),(0x0d,0x25),(0x0e,0x25),(0x0f,0x25),(0x10,0x25),(0x11,0x25),(0x12,0x25),(0x13,0x25),(0x14,0x25),(0x15,0x25),(0x16,0x25),(0x17,0x25),(0x18,0x25),(0x19,0x25),(0x1a,0x25),
    (0x09,0x26),(0x0a,0x26),(0x0b,0x26),(0x0c,0x26),(0x0d,0x26),(0x0e,0x26),(0x0f,0x26),(0x10,0x26),(0x11,0x26),(0x12,0x26),(0x13,0x26),(0x14,0x26),(0x15,0x26),(0x16,0x26),(0x17,0x26),(0x18,0x26),(0x19,0x26),(0x1a,0x26),
    (0x09,0x27),(0x0a,0x27),(0x0b,0x27),(0x0c,0x27),(0x0d,0x27),(0x0e,0x27),(0x0f,0x27),(0x10,0x27),(0x11,0x27),(0x12,0x27),(0x13,0x27),(0x14,0x27),(0x15,0x27),(0x16,0x27),(0x17,0x27),(0x18,0x27),(0x19,0x27),(0x1a,0x27),
    (0x09,0x28),(0x0a,0x28),(0x0b,0x28),(0x0c,0x28),(0x0d,0x28),(0x0e,0x28),(0x0f,0x28),(0x10,0x28),(0x11,0x28),(0x12,0x28),(0x13,0x28),(0x14,0x28),(0x15,0x28),                                    (0x19,0x28),(0x1a,0x28),
    (0x09,0x29),(0x0a,0x29),(0x0b,0x29),(0x0c,0x29),(0x0d,0x29),(0x0e,0x29),(0x0f,0x29),(0x10,0x29),(0x11,0x29),(0x12,0x29),(0x13,0x29),(0x14,0x29),(0x15,0x29),                                    (0x19,0x29),(0x1a,0x29),
    (0x09,0x2a),(0x0a,0x2a),(0x0b,0x2a),(0x0c,0x2a),(0x0d,0x2a),(0x0e,0x2a),(0x0f,0x2a),(0x10,0x2a),(0x11,0x2a),(0x12,0x2a),(0x13,0x2a),(0x14,0x2a),(0x15,0x2a),                                    (0x19,0x2a),(0x1a,0x2a),
    (0x09,0x2b),(0x0a,0x2b),(0x0b,0x2b),(0x0c,0x2b),(0x0d,0x2b),(0x0e,0x2b),(0x0f,0x2b),(0x10,0x2b),(0x11,0x2b),(0x12,0x2b),(0x13,0x2b),(0x14,0x2b),(0x15,0x2b),(0x16,0x2b),(0x17,0x2b),(0x18,0x2b),(0x19,0x2b),(0x1a,0x2b),
    (0x09,0x2c),(0x0a,0x2c),(0x0b,0x2c),(0x0c,0x2c),(0x0d,0x2c),(0x0e,0x2c),(0x0f,0x2c),(0x10,0x2c),(0x11,0x2c),(0x12,0x2c),            (0x14,0x2c),(0x15,0x2c),(0x16,0x2c),(0x17,0x2c),(0x18,0x2c),(0x19,0x2c),(0x1a,0x2c),
    (0x09,0x2d),(0x0a,0x2d),(0x0b,0x2d),                                    (0x0f,0x2d),(0x10,0x2d),(0x11,0x2d),(0x12,0x2d),(0x13,0x2d),(0x14,0x2d),(0x15,0x2d),(0x16,0x2d),(0x17,0x2d),(0x18,0x2d),(0x19,0x2d),(0x1a,0x2d),
    (0x09,0x2e),(0x0a,0x2e),(0x0b,0x2e),                                    (0x0f,0x2e),(0x10,0x2e),(0x11,0x2e),(0x12,0x2e),(0x13,0x2e),(0x14,0x2e),(0x15,0x2e),(0x16,0x2e),(0x17,0x2e),(0x18,0x2e),(0x19,0x2e),(0x1a,0x2e),
    (0x09,0x2f),(0x0a,0x2f),(0x0b,0x2f),                                    (0x0f,0x2f),(0x10,0x2f),(0x11,0x2f),(0x12,0x2f),(0x13,0x2f),(0x14,0x2f),                        (0x17,0x2f),(0x18,0x2f),(0x19,0x2f),(0x1a,0x2f),
    (0x09,0x30),(0x0a,0x30),(0x0b,0x30),(0x0c,0x30),(0x0d,0x30),(0x0e,0x30),(0x0f,0x30),(0x10,0x30),(0x11,0x30),(0x12,0x30),(0x13,0x30),(0x14,0x30),                        (0x17,0x30),(0x18,0x30),(0x19,0x30),(0x1a,0x30),
    (0x09,0x31),(0x0a,0x31),            (0x0c,0x31),(0x0d,0x31),(0x0e,0x31),(0x0f,0x31),(0x10,0x31),(0x11,0x31),(0x12,0x31),(0x13,0x31),(0x14,0x31),(0x15,0x31),(0x16,0x31),(0x17,0x31),(0x18,0x31),(0x19,0x31),(0x1a,0x31),
    (0x09,0x32),(0x0a,0x32),(0x0b,0x32),(0x0c,0x32),(0x0d,0x32),(0x0e,0x32),(0x0f,0x32),(0x10,0x32),(0x11,0x32),(0x12,0x32),(0x13,0x32),(0x14,0x32),(0x15,0x32),(0x16,0x32),(0x17,0x32),(0x18,0x32),(0x19,0x32),(0x1a,0x32),
    (0x09,0x33),(0x0a,0x33),(0x0b,0x33),(0x0c,0x33),(0x0d,0x33),(0x0e,0x33),(0x0f,0x33),(0x10,0x33),(0x11,0x33),(0x12,0x33),(0x13,0x33),(0x14,0x33),(0x15,0x33),(0x16,0x33),(0x17,0x33),(0x18,0x33),(0x19,0x33),(0x1a,0x33),
)

SPAWN_COUNT = 4

def getDailyRandom(seed):
  if seed & 0x80000000 != 0:
    return 0x100000000 - seed
  else:
    return seed

def lotPoint(seed):
  daily_split = [0] * SPAWN_COUNT
  daily_rand = getDailyRandom(seed)
  for i in range(SPAWN_COUNT):
    daily_split[i] = daily_rand >> (8 * (SPAWN_COUNT - 1 - i)) & 0xff
  total_tiles = len(TILE_DATA)
  section_length = total_tiles // SPAWN_COUNT
  add_extra = total_tiles % SPAWN_COUNT
  result = [0] * SPAWN_COUNT
  extra = 0
  for i in range(SPAWN_COUNT):
    result[i] = extra + section_length * i + daily_split[i] % section_length
    if i < add_extra:
      extra += 1
  return result

if __name__ == '__main__':
  import sys
  lotto = int(sys.argv[1])
  seed_low = (lotto * 0xeeb9eb65 + 0xfc77a683) & 0xffff
  print([TILE_DATA[x] for x in lotPoint(seed_low)[2:]])
  print([TILE_DATA[x] for x in lotPoint(seed_low | 0x80000000)[2:]])

I'm curious, do I have to stand ON the feebas tile or stand next to it and aim my rod at the tile? The calculator page could use a note clarifying this.

@Cashews54 if I'm not wrong it says the tile where feebas can appear. So to answer your question properly:
You need to stand next to the tile and aiming your rod on the tile to have a feebas (note that there's still only 50% chance feebas appear so you maybe want to try multiple times)

@Cashews54 My version of the calculator has some additional FAQ and a short explanation of how it works: https://drayx.github.io/feebas

This wasn't working for me as of 1.1.3 version. I was very very careful to be casting my rod into the correct tile. I will try again tomorrow with a new lotto number

I was also having troubles with 1.1.3 version on shining pearl. Luckily my gf hadn't updated yet and could confirm on 1.1.2 that it was working still

It’s currently not working with the new update :(

Agreed, it does not appear to be working on 1.1.3. Have tried twice now, verifying with a screenshot that I entered the correct lotto ID.

Hello,
First of all, thank you to all those involved in creating this algorithm, I'm sure this must have taken tons of time to figure out! Next, as of 12/23 even using two days of lotto tickets, none of the generated tiles green or red were feebas tiles (I fished like 10 times per tile to be sure), so I think I can confirm that this was patched in the 1.1.3 update. Finally, if you guys figure out how to get this working again in the future it would be awesome if you could notify me!
Thanks again!
Joey

+1
Not working on 1.1.3
What a pity...

For me it worked (Version 1.1.3). 🥳

I had 4 recommended tiles and I planned on trying every tile at least 3 times. I was successful on the 3rd try at the first tile already.

There is an old and a new version of the calculator. I used this one:
https://lincoln-lm.github.io/JS-Finder/Tools/BDSPFeebas.html

@TimHe95
With the 1.1.3 update there is a new version of this same calculator tool. But instead of just providing one Lotto ID number, the new tool requires at least 2 days-worth of Lotto IDs and Swarm info (which route there appears to be a lot of a specific Pokémon for a given day—you can find this by opening your menu and checking the ‘current objective’) in order to help narrow down your exact game seed…and thus accurately determine the four tiles that spawn Feebas on a given day.

What are the sold sphere/Drill sphere checks about and where can I find that info?

Does this work on the Nintendo DS version?