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Adapt the Pokémon savefile struct to the database.
This commit is contained in:
Eevee
parent
3e7d750790
commit
9c2def712c
2 changed files with 226 additions and 10 deletions
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@ -10,7 +10,9 @@ derived.
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import struct
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from pokedex.util import permutations
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from pokedex.db import tables
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from pokedex.formulae import calculated_hp, calculated_stat
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from pokedex.util import namedtuple, permutations
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from pokedex.struct._pokemon_struct import pokemon_struct
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def pokemon_prng(seed):
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@ -28,12 +30,16 @@ class SaveFilePokemon(object):
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(also used by pokesav), and something vaguely intelligible.
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"""
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Stat = namedtuple('Stat', ['stat', 'base', 'gene', 'exp', 'calc'])
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def __init__(self, blob, encrypted=False):
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u"""Wraps a Pokémon save struct in a friendly object.
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If `encrypted` is True, the blob will be decrypted as though it were an
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on-disk save. Otherwise, the blob is taken to be already decrypted and
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is left alone.
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`session` is an optional database session.
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"""
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if encrypted:
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@ -54,7 +60,6 @@ class SaveFilePokemon(object):
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self.structure = pokemon_struct.parse(self.blob)
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@property
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def as_struct(self):
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u"""Returns a decrypted struct, aka .pkm file."""
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@ -75,9 +80,7 @@ class SaveFilePokemon(object):
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# Stuff back into a string, and done
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return struct.pack(struct_def, *shuffled)
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### Delicious data
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@property
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def is_shiny(self):
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u"""Returns true iff this Pokémon is shiny."""
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@ -93,6 +96,165 @@ class SaveFilePokemon(object):
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^ personality_lsdw
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) < 8
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def use_database_session(self, session):
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"""Remembers the given database session, and prefetches a bunch of
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database stuff. Gotta call this before you use the database properties
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like `species`, etc.
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"""
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self._session = session
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st = self.structure
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self._pokemon = session.query(tables.Pokemon).get(st.national_id)
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self._ability = self._session.query(tables.Ability).get(st.ability_id)
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growth_rate = self._pokemon.evolution_chain.growth_rate
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self._experience_rung = session.query(tables.Experience) \
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.filter(tables.Experience.growth_rate == growth_rate) \
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.filter(tables.Experience.experience <= st.exp) \
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.order_by(tables.Experience.level.desc()) \
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[0]
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level = self._experience_rung.level
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self._next_experience_rung = None
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if level < 100:
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self._next_experience_rung = session.query(tables.Experience) \
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.filter(tables.Experience.growth_rate == growth_rate) \
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.filter(tables.Experience.level == level + 1) \
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.one()
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self._held_item = None
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if st.held_item_id:
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self._held_item = session.query(tables.ItemInternalID) \
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.filter_by(generation_id = 4, internal_id = st.held_item_id).one().item
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self._stats = []
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for pokemon_stat in self._pokemon.stats:
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structure_name = pokemon_stat.stat.name.lower().replace(' ', '_')
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gene = st.ivs['iv_' + structure_name]
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exp = st['effort_' + structure_name]
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if pokemon_stat.stat.name == u'HP':
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calc = calculated_hp
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else:
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calc = calculated_stat
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stat_tup = self.Stat(
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stat = pokemon_stat.stat,
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base = pokemon_stat.base_stat,
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gene = gene,
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exp = exp,
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calc = calc(
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pokemon_stat.base_stat,
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level = level,
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iv = gene,
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effort = exp,
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),
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)
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self._stats.append(stat_tup)
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move_ids = (
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self.structure.move1_id,
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self.structure.move2_id,
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self.structure.move3_id,
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self.structure.move4_id,
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)
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move_rows = self._session.query(tables.Move).filter(tables.Move.id.in_(move_ids))
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moves_dict = dict((move.id, move) for move in move_rows)
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self._moves = [moves_dict.get(move_id, None) for move_id in move_ids]
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if st.hgss_pokeball >= 17:
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pokeball_id = st.hgss_pokeball - 17 + 492
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else:
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pokeball_id = st.dppt_pokeball
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self._pokeball = session.query(tables.ItemInternalID) \
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.filter_by(generation_id = 4, internal_id = pokeball_id).one().item
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egg_loc_id = st.pt_egg_location_id or st.dp_egg_location_id
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met_loc_id = st.pt_met_location_id or st.dp_met_location_id
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self._egg_location = None
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if egg_loc_id:
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self._egg_location = session.query(tables.LocationInternalID) \
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.filter_by(generation_id = 4, internal_id = egg_loc_id).one().location
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self._met_location = session.query(tables.LocationInternalID) \
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.filter_by(generation_id = 4, internal_id = met_loc_id).one().location
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@property
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def species(self):
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# XXX forme!
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return self._pokemon
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@property
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def pokeball(self):
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return self._pokeball
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@property
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def egg_location(self):
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return self._egg_location
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@property
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def met_location(self):
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return self._met_location
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@property
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def shiny_leaves(self):
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return (
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self.structure.shining_leaves.leaf1,
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self.structure.shining_leaves.leaf2,
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self.structure.shining_leaves.leaf3,
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self.structure.shining_leaves.leaf4,
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self.structure.shining_leaves.leaf5,
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)
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@property
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def level(self):
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return self._experience_rung.level
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@property
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def exp_to_next(self):
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if self._next_experience_rung:
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return self._next_experience_rung.experience - self.structure.exp
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else:
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return 0
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@property
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def progress_to_next(self):
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if self._next_experience_rung:
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return 1.0 \
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* (self.structure.exp - self._experience_rung.experience) \
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/ (self._next_experience_rung.experience - self._experience_rung.experience)
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else:
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return 0.0
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@property
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def ability(self):
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return self._ability
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@property
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def held_item(self):
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return self._held_item
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@property
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def stats(self):
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return self._stats
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@property
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def moves(self):
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return self._moves
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@property
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def move_pp(self):
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return (
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self.structure.move1_pp,
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self.structure.move2_pp,
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self.structure.move3_pp,
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self.structure.move4_pp,
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)
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### Utility methods
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@ -527,6 +527,58 @@ class DateAdapter(Adapter):
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y, m, d = obj.year - 2000, obj.month, obj.day
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return ''.join(chr(n) for n in (y, m, d))
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class PokemonFormAdapter(Adapter):
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"""Converts form ids to form names, and vice versa."""
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pokemon_forms = {
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# Unown
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201: 'abcdefghijklmnopqrstuvwxyz!?',
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# Deoxys
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386: ['normal', 'attack', 'defense', 'speed'],
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# Burmy and Wormadam
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412: ['plant', 'sandy', 'trash'],
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413: ['plant', 'sandy', 'trash'],
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# Shellos and Gastrodon
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422: ['west', 'east'],
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423: ['west', 'east'],
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# Rotom
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479: ['normal', 'heat', 'wash', 'frost', 'fan', 'cut'],
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# Giratina
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487: ['altered', 'origin'],
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# Shaymin
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492: ['land', 'sky'],
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# Arceus
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493: [
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'normal', 'fighting', 'flying', 'poison', 'ground', 'rock',
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'bug', 'ghost', 'steel', 'fire', 'water', 'grass',
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'thunder', 'psychic', 'ice', 'dragon', 'dark', '???',
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],
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}
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def _decode(self, obj, context):
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try:
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forms = self.pokemon_forms[ context['national_id'] ]
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except KeyError:
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return None
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return forms[obj >> 3]
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def _encode(self, obj, context):
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try:
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forms = self.pokemon_forms[ context['national_id'] ]
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except KeyError:
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return None
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return forms.index(obj) << 3
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# And here we go.
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# Docs: http://projectpokemon.org/wiki/Pokemon_NDS_Structure
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pokemon_struct = Struct('pokemon_struct',
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@ -669,7 +721,7 @@ pokemon_struct = Struct('pokemon_struct',
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Flag('cool_ribbon'),
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),
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EmbeddedBitStruct(
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BitField('alternate_form', 5),
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PokemonFormAdapter(BitField('alternate_form', 5)),
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Enum(BitField('gender', 2),
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genderless = 2,
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male = 0,
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@ -747,14 +799,16 @@ pokemon_struct = Struct('pokemon_struct',
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BitField('met_at_level', 7),
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),
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Enum(ULInt8('encounter_type'),
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special = 0,
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grass = 2,
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special = 0, # egg; pal park; event; honey tree; shaymin
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grass = 2, # or darkrai
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dialga_palkia = 4,
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cave = 5, # or hall of origin
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cave = 5, # or giratina or hall of origin
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water = 7,
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building = 9,
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safari_zone = 10,
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gift = 12,
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safari_zone = 10, # includes great marsh
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gift = 12, # starter; fossil; ingame trade?
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# distortion_world = ???,
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hgss_gift = 24, # starter; fossil; bebe's eevee (pt only??)
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),
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ULInt8('hgss_pokeball'),
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Padding(1),
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