veekun_pokedex/scripts/gen_iv_tutors.py

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from struct import Struct
max_pokemon = 507
# As usual, I'm just going to dump SQL
print('begin;')
# Delete the previous tutor data, except for the special tutors that aren't
# stored as flags
print("""delete from pokemon_moves where version_group_id in (9, 10)
and pokemon_move_method_id=3
and move_id not in (select id from moves where identifier in
('blast-burn', 'hydro-cannon', 'frenzy-plant', 'draco-meteor'));
""")
# A template for inserting a pokemon_moves record. No internal Pokémon indices
# change between Pt and HG/SS, so we'll just use Pt's.
insert_template = """insert into pokemon_moves (pokemon_id, version_group_id,
move_id, pokemon_move_method_id, level, "order")
values (
(select pokemon_id from pokemon_game_indices where game_index={pokemon}
and version_id=14),
{version_group}, {move}, 3, 0, null
);
"""
# PLATINUM
move_struct = Struct('<H10x') # We don't care about shard costs or anything
move_count = 38
moves = []
with open('/tmp/pt/overlay9/overlay_00000005.bin', 'rb') as overlay:
overlay.seek(0x2FF64)
for move in range(move_count):
move = overlay.read(move_struct.size)
move, = move_struct.unpack(move)
moves.append(move)
# The Eggs don't get dummy flags; it goes straight to Attack Deoxys
for pokemon in range(1, max_pokemon + 1 - 2):
if pokemon > 493:
pokemon += 2
for n, move in enumerate(moves):
if n % 8 == 0:
flag_byte, = overlay.read(1)
if flag_byte & 1:
print(insert_template.format(
pokemon=pokemon,
version_group=9,
move=move
))
flag_byte >>= 1
# HEARTGOLD
move_struct = Struct('<H2x') # Costs are just BP so there's less to skip
move_count = 52
moves = []
# The move list for HG is in a compressed overlay, which I decompressed
# beforehand with magical's lzss3.py -- https://github.com/magical/nlzss
with open('/tmp/overlays/overlay_00000001.bin', 'rb') as overlay:
overlay.seek(0x23AE0)
for move in range(move_count):
move = overlay.read(move_struct.size)
move, = move_struct.unpack(move)
moves.append(move)
# And the flags are in their own file, padded to an easy length this time.
# This seemed nice at first but it made it harder to find the move list...
flag_struct = Struct('<Q')
with open('/tmp/hg/fsroot/fielddata/wazaoshie/waza_oshie.bin', 'rb') as flagbin:
for pokemon in range(1, max_pokemon + 1 - 2):
if pokemon > 493:
pokemon += 2
flags, = flag_struct.unpack(flagbin.read(8))
for n, move in enumerate(moves):
if flags & 1:
print(insert_template.format(
pokemon=pokemon,
version_group=10,
move=move
))
flags >>= 1
# Duplicate moves for the Castforms
print("""
insert into pokemon_moves (pokemon_id, version_group_id, move_id,
pokemon_move_method_id, level, "order")
select p.id, pm.version_group_id, pm.move_id, 3, 0, null
from pokemon_moves pm
join pokemon p on pm.pokemon_id=p.species_id and p.is_default=False
where p.species_id=351 and pm.pokemon_move_method_id=3 and pm.version_group_id in
(9, 10);
""")
print('commit;')