PKHeX/PKHeX.Core/Legality/Encounters/Verifiers/VerifyCurrentMoves.cs
2021-04-18 18:18:09 -07:00

822 lines
39 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using static PKHeX.Core.LegalityCheckStrings;
using static PKHeX.Core.ParseSettings;
using static PKHeX.Core.MoveSource;
using static PKHeX.Core.Severity;
using static PKHeX.Core.CheckIdentifier;
namespace PKHeX.Core
{
/// <summary>
/// Logic to verify the current <see cref="PKM.Moves"/>.
/// </summary>
public static class VerifyCurrentMoves
{
/// <summary>
/// Verifies the current moves of the <see cref="pkm"/> data based on the provided <see cref="info"/>.
/// </summary>
/// <param name="pkm">Data to check</param>
/// <param name="info">Encounter conditions and legality info</param>
/// <returns>Validity of the <see cref="PKM.Moves"/></returns>
public static CheckMoveResult[] VerifyMoves(PKM pkm, LegalInfo info)
{
var currentMoves = pkm.Moves;
var res = ParseMovesForEncounters(pkm, info, currentMoves);
// Duplicate Moves Check
VerifyNoEmptyDuplicates(currentMoves, res);
if (currentMoves[0] == 0) // Can't have an empty move slot for the first move.
res[0] = new CheckMoveResult(res[0], Invalid, LMoveSourceEmpty, CurrentMove);
return res;
}
private static CheckMoveResult[] ParseMovesForEncounters(PKM pkm, LegalInfo info, int[] currentMoves)
{
if (pkm.Species == (int)Species.Smeargle) // special handling for Smeargle
return ParseMovesForSmeargle(pkm, currentMoves, info); // Smeargle can have any moves except a few
// gather valid moves for encounter species
var restrict = new LevelUpRestriction(pkm, info);
info.EncounterMoves = new ValidEncounterMoves(pkm, restrict, info.EncounterMatch);
IReadOnlyList<int> defaultG1LevelMoves = Array.Empty<int>();
IReadOnlyList<int> defaultG2LevelMoves = Array.Empty<int>();
var defaultTradeback = pkm.TradebackStatus;
bool gb = false;
int gen = info.EncounterMatch.Generation;
if (gen <= 2)
{
gb = true;
defaultG1LevelMoves = info.EncounterMoves.LevelUpMoves[1];
if (pkm.InhabitedGeneration(2))
defaultG2LevelMoves = info.EncounterMoves.LevelUpMoves[2];
// Generation 1 can have different minimum level in different encounter of the same species; update valid level moves
UpdateGen1LevelUpMoves(pkm, info.EncounterMoves, restrict.MinimumLevelGen1, gen, info);
// The same for Generation 2; if move reminder from Stadium 2 is not allowed
if (!ParseSettings.AllowGen2MoveReminder(pkm) && pkm.InhabitedGeneration(2))
UpdateGen2LevelUpMoves(pkm, info.EncounterMoves, restrict.MinimumLevelGen2, gen, info);
}
var res = info.Generation < 6
? ParseMovesPre3DS(pkm, currentMoves, info)
: ParseMoves3DS(pkm, currentMoves, info);
if (res.All(x => x.Valid))
return res;
// not valid
if (gb) // restore generation 1 and 2 moves
{
info.EncounterMoves.LevelUpMoves[1] = defaultG1LevelMoves;
if (pkm.InhabitedGeneration(2))
info.EncounterMoves.LevelUpMoves[2] = defaultG2LevelMoves;
}
pkm.TradebackStatus = defaultTradeback;
return res;
}
private static CheckMoveResult[] ParseMovesForSmeargle(PKM pkm, IReadOnlyList<int> currentMoves, LegalInfo info)
{
if (!pkm.IsEgg)
return ParseMovesSketch(pkm, currentMoves);
// can only know sketch as egg
var levelup = new int[info.EvoChainsAllGens.Length][];
levelup[pkm.Format] = new[] {166};
info.EncounterMoves = new ValidEncounterMoves(levelup);
var source = new MoveParseSource { CurrentMoves = currentMoves, };
return ParseMoves(pkm, source, info);
}
private static CheckMoveResult[] ParseMovesWasEggPreRelearn(PKM pkm, IReadOnlyList<int> currentMoves, LegalInfo info, EncounterEgg e)
{
var EventEggMoves = GetSpecialMoves(info.EncounterMatch);
bool notEvent = EventEggMoves.Count == 0;
// Level up moves could not be inherited if Ditto is parent,
// that means genderless species and male only species (except Nidoran-M and Volbeat; they breed with Nidoran-F and Illumise) could not have level up moves as an egg
var pi = pkm.PersonalInfo;
var AllowLevelUp = notEvent && !pi.Genderless && !(pi.OnlyMale && Breeding.MixedGenderBreeding.Contains(e.Species));
int BaseLevel = AllowLevelUp ? 100 : e.LevelMin;
var LevelUp = MoveList.GetBaseEggMoves(pkm, e.Species, e.Form, e.Version, BaseLevel);
var TradebackPreevo = pkm.Format == 2 && info.EncounterMatch.Species > 151;
var NonTradebackLvlMoves = TradebackPreevo
? MoveList.GetExclusivePreEvolutionMoves(pkm, info.EncounterMatch.Species, info.EvoChainsAllGens[2], 2, e.Version).Where(m => m > Legal.MaxMoveID_1).ToArray()
: Array.Empty<int>();
var Egg = MoveEgg.GetEggMoves(pkm.PersonalInfo, e.Species, e.Form, e.Version, e.Generation);
if (info.Generation < 3 && pkm.Format >= 7 && pkm.VC1)
Egg = Egg.Where(m => m <= Legal.MaxMoveID_1).ToArray();
bool volt = (info.Generation > 3 || e.Version == GameVersion.E) && Legal.LightBall.Contains(pkm.Species);
var specialMoves = volt && notEvent ? new[] { (int)Move.VoltTackle } : Array.Empty<int>(); // Volt Tackle for bred Pichu line
var source = new MoveParseSource
{
CurrentMoves = currentMoves,
SpecialSource = specialMoves,
NonTradeBackLevelUpMoves = NonTradebackLvlMoves,
EggLevelUpSource = LevelUp,
EggMoveSource = Egg,
EggEventSource = EventEggMoves,
};
return ParseMoves(pkm, source, info);
}
private static CheckMoveResult[] ParseMovesSketch(PKM pkm, IReadOnlyList<int> currentMoves)
{
var res = new CheckMoveResult[4];
for (int i = 0; i < 4; i++)
{
var move = currentMoves[i];
res[i] = Legal.InvalidSketch.Contains(move) || (pkm.Format is 6 && move is (int)Move.ThousandArrows or (int)Move.ThousandWaves)
? new CheckMoveResult(Unknown, pkm.Format, Invalid, LMoveSourceInvalidSketch, CurrentMove)
: new CheckMoveResult(Sketch, pkm.Format, CurrentMove);
}
return res;
}
private static CheckMoveResult[] ParseMoves3DS(PKM pkm, IReadOnlyList<int> currentMoves, LegalInfo info)
{
info.EncounterMoves.Relearn = info.Generation >= 6 ? pkm.RelearnMoves : Array.Empty<int>();
return info.EncounterMatch is IMoveset
? ParseMovesSpecialMoveset(pkm, currentMoves, info)
: ParseMovesRelearn(pkm, currentMoves, info);
}
private static CheckMoveResult[] ParseMovesPre3DS(PKM pkm, int[] currentMoves, LegalInfo info)
{
if (info.EncounterMatch is EncounterEgg e)
{
return pkm.IsEgg
? VerifyPreRelearnEggBase(currentMoves, e)
: ParseMovesWasEggPreRelearn(pkm, currentMoves, info, e);
}
// Not all games have a re-learner. Initial moves may not fill out all 4 slots.
int gen = info.EncounterMatch.Generation;
if (gen == 1 || (gen == 2 && !AllowGen2MoveReminder(pkm)))
return ParseMovesGenGB(pkm, currentMoves, info);
return ParseMovesSpecialMoveset(pkm, currentMoves, info);
}
private static CheckMoveResult[] ParseMovesGenGB(PKM pkm, IReadOnlyList<int> currentMoves, LegalInfo info)
{
var res = new CheckMoveResult[4];
var enc = info.EncounterMatch;
var InitialMoves = Array.Empty<int>();
var SpecialMoves = GetSpecialMoves(enc);
var games = enc.Generation == 1 ? GBRestrictions.GetGen1Versions(enc) : GBRestrictions.GetGen2Versions(enc, pkm.Korean);
foreach (var ver in games)
{
var VerInitialMoves = MoveLevelUp.GetEncounterMoves(enc.Species, 0, enc.LevelMin, ver);
if (VerInitialMoves.Intersect(InitialMoves).Count() == VerInitialMoves.Length)
return res;
var source = new MoveParseSource
{
CurrentMoves = currentMoves,
SpecialSource = SpecialMoves,
Base = VerInitialMoves,
};
res = ParseMoves(pkm, source, info);
if (res.All(r => r.Valid))
return res;
InitialMoves = VerInitialMoves;
}
return res;
}
private static CheckMoveResult[] ParseMovesSpecialMoveset(PKM pkm, IReadOnlyList<int> currentMoves, LegalInfo info)
{
var source = new MoveParseSource
{
CurrentMoves = currentMoves,
SpecialSource = GetSpecialMoves(info.EncounterMatch),
};
return ParseMoves(pkm, source, info);
}
private static IReadOnlyList<int> GetSpecialMoves(IEncounterable enc)
{
if (enc is IMoveset mg)
return mg.Moves;
return Array.Empty<int>();
}
private static CheckMoveResult[] ParseMovesRelearn(PKM pkm, IReadOnlyList<int> currentMoves, LegalInfo info)
{
var source = new MoveParseSource
{
CurrentMoves = currentMoves,
SpecialSource = GetSpecialMoves(info.EncounterMatch),
};
if (info.EncounterMatch is EncounterEgg e)
source.EggMoveSource = MoveEgg.GetEggMoves(pkm.PersonalInfo, e.Species, e.Form, e.Version, e.Generation);
var res = ParseMoves(pkm, source, info);
var relearn = pkm.RelearnMoves;
for (int i = 0; i < 4; i++)
{
if ((pkm.IsEgg || res[i].IsRelearn) && !relearn.Contains(currentMoves[i]))
res[i] = new CheckMoveResult(res[i], Invalid, string.Format(LMoveRelearnFMiss_0, res[i].Comment), res[i].Identifier);
}
return res;
}
private static CheckMoveResult[] ParseMoves(PKM pkm, MoveParseSource source, LegalInfo info)
{
var res = new CheckMoveResult[4];
bool AllParsed() => res.All(z => z != null);
var required = pkm is not PK1 pk1 ? 1 : GBRestrictions.GetRequiredMoveCount(pk1, source.CurrentMoves, info, source.Base);
// Special considerations!
int reset = 0;
if (pkm is IBattleVersion {BattleVersion: not 0} v)
{
reset = ((GameVersion) v.BattleVersion).GetGeneration();
source.ResetSources();
}
// Check empty moves and relearn moves before generation specific moves
for (int m = 0; m < 4; m++)
{
if (source.CurrentMoves[m] == 0)
res[m] = new CheckMoveResult(None, pkm.Format, m < required ? Fishy : Valid, LMoveSourceEmpty, CurrentMove);
else if (reset == 0 && info.EncounterMoves.Relearn.Contains(source.CurrentMoves[m]))
res[m] = new CheckMoveResult(Relearn, info.Generation, Valid, LMoveSourceRelearn, CurrentMove);
}
if (AllParsed())
return res;
// Encapsulate arguments to simplify method calls
var moveInfo = new LearnInfo(pkm, source);
// Check moves going backwards, marking the move valid in the most current generation when it can be learned
int[] generations = GenerationTraversal.GetVisitedGenerationOrder(pkm, info.EncounterOriginal.Generation);
if (pkm.Format <= 2)
generations = generations.Where(z => z < info.EncounterMoves.LevelUpMoves.Length).ToArray();
if (reset != 0)
generations = generations.Where(z => z >= reset).ToArray();
int lastgen = generations.Length == 0 ? 0 : generations[generations.Length - 1];
foreach (var gen in generations)
{
ParseMovesByGeneration(pkm, res, gen, info, moveInfo, lastgen);
if (AllParsed())
return res;
}
if (pkm.Species == (int)Species.Shedinja && info.Generation <= 4)
ParseShedinjaEvolveMoves(pkm, res, source.CurrentMoves, info.EvoChainsAllGens);
// ReSharper disable once ConstantNullCoalescingCondition
for (int m = 0; m < 4; m++)
res[m] ??= new CheckMoveResult(Unknown, info.Generation, Invalid, LMoveSourceInvalid, CurrentMove);
return res;
}
private static void ParseMovesByGeneration(PKM pkm, CheckMoveResult[] res, int gen, LegalInfo info, LearnInfo learnInfo, int last)
{
GetHMCompatibility(pkm, res, gen, learnInfo.Source.CurrentMoves, out bool[] HMLearned, out bool KnowDefogWhirlpool);
ParseMovesByGeneration(pkm, res, gen, info, learnInfo);
if (gen == last)
ParseMovesByGenerationLast(pkm, res, learnInfo, info.EncounterMatch);
switch (gen)
{
case 1 or 2:
ParseMovesByGeneration12(pkm, res, learnInfo.Source.CurrentMoves, gen, info, learnInfo);
break;
case 3 or 4:
if (pkm.Format > gen)
FlagIncompatibleTransferHMs45(res, learnInfo.Source.CurrentMoves, gen, HMLearned, KnowDefogWhirlpool);
break;
}
// Pokemon that evolved by leveling up while learning a specific move
// This pokemon could only have 3 moves from preevolutions that are not the move used to evolved
// including special and eggs moves before relearn generations
if (EvolutionRestrictions.SpeciesEvolutionWithMove.Contains(pkm.Species))
ParseEvolutionLevelupMove(pkm, res, learnInfo.Source.CurrentMoves, info);
}
private static void ParseMovesByGeneration(PKM pkm, IList<CheckMoveResult> res, int gen, LegalInfo info, LearnInfo learnInfo)
{
var moves = learnInfo.Source.CurrentMoves;
bool native = gen == pkm.Format;
for (int m = 0; m < 4; m++)
{
if (IsCheckValid(res[m])) // already validated with another generation
continue;
int move = moves[m];
if (move == 0)
continue;
if (gen <= 2)
{
if (gen == 2 && !native && move > Legal.MaxMoveID_1 && pkm.VC1)
{
res[m] = new CheckMoveResult(Unknown, gen, Invalid, LMoveSourceInvalid, CurrentMove);
continue;
}
if (gen == 2 && learnInfo.Source.EggMoveSource.Contains(move))
res[m] = new CheckMoveResult(EggMove, gen, Valid, LMoveSourceEgg, CurrentMove);
else if (learnInfo.Source.Base.Contains(move))
res[m] = new CheckMoveResult(Initial, gen, Valid, native ? LMoveSourceDefault : string.Format(LMoveFDefault_0, gen), CurrentMove);
}
if (info.EncounterMoves.LevelUpMoves[gen].Contains(move))
res[m] = new CheckMoveResult(LevelUp, gen, Valid, native ? LMoveSourceLevelUp : string.Format(LMoveFLevelUp_0, gen), CurrentMove);
else if (info.EncounterMoves.TMHMMoves[gen].Contains(move))
res[m] = new CheckMoveResult(TMHM, gen, Valid, native ? LMoveSourceTMHM : string.Format(LMoveFTMHM_0, gen), CurrentMove);
else if (info.EncounterMoves.TutorMoves[gen].Contains(move))
res[m] = new CheckMoveResult(Tutor, gen, Valid, native ? LMoveSourceTutor : string.Format(LMoveFTutor_0, gen), CurrentMove);
else if (gen == info.Generation && learnInfo.Source.SpecialSource.Contains(move))
res[m] = new CheckMoveResult(Special, gen, Valid, LMoveSourceSpecial, CurrentMove);
else if (gen >= 8 && MoveEgg.GetIsSharedEggMove(pkm, gen, move))
res[m] = new CheckMoveResult(Shared, gen, Valid, native ? LMoveSourceShared : string.Format(LMoveSourceSharedF, gen), CurrentMove);
if (gen >= 3 || !IsCheckValid(res[m]))
continue;
// Gen1/Gen2 only below
if (gen == 2 && learnInfo.Source.NonTradeBackLevelUpMoves.Contains(m))
{
learnInfo.Gen2PreevoMoves.Add(m);
}
else if (gen == 1)
{
learnInfo.Gen1Moves.Add(m);
if (learnInfo.Gen2PreevoMoves.Count != 0)
learnInfo.MixedGen12NonTradeback = true;
}
if (pkm.TradebackStatus == TradebackType.Any && info.Generation != gen)
pkm.TradebackStatus = TradebackType.WasTradeback;
}
}
private static void ParseMovesByGeneration12(PKM pkm, CheckMoveResult[] res, IReadOnlyList<int> currentMoves, int gen, LegalInfo info, LearnInfo learnInfo)
{
// Mark the gen 1 exclusive moves as illegal because the pokemon also have Non tradeback egg moves.
if (learnInfo.MixedGen12NonTradeback)
{
foreach (int m in learnInfo.Gen1Moves)
res[m] = new CheckMoveResult(res[m], Invalid, LG1MoveExclusive, CurrentMove);
foreach (int m in learnInfo.Gen2PreevoMoves)
res[m] = new CheckMoveResult(res[m], Invalid, LG1TradebackPreEvoMove, CurrentMove);
}
if (gen == 1 && pkm.Format == 1 && pkm.Gen1_NotTradeback)
{
ParseRedYellowIncompatibleMoves(pkm, res, currentMoves);
ParseEvolutionsIncompatibleMoves(pkm, res, currentMoves, info.EncounterMoves.TMHMMoves[1]);
}
}
private static void ParseMovesByGenerationLast(PKM pkm, CheckMoveResult[] res, LearnInfo learnInfo, IEncounterable enc)
{
int gen = enc.Generation;
ParseEggMovesInherited(pkm, res, gen, learnInfo);
ParseEggMoves(pkm, res, gen, learnInfo);
ParseEggMovesRemaining(pkm, res, learnInfo, enc);
}
private static void ParseEggMovesInherited(PKM pkm, CheckMoveResult[] res, int gen, LearnInfo learnInfo)
{
var moves = learnInfo.Source.CurrentMoves;
// Check higher-level moves after all the moves but just before egg moves to differentiate it from normal level up moves
// Also check if the base egg moves is a non tradeback move
for (int m = 0; m < 4; m++)
{
var r = res[m];
if (IsCheckValid(r)) // already validated
{
if (gen == 2 && r.Generation != 1)
continue;
}
int move = moves[m];
if (move == 0)
continue;
if (!learnInfo.Source.EggLevelUpSource.Contains(move)) // Check if contains level-up egg moves from parents
continue;
if (learnInfo.IsGen2Pkm && learnInfo.Gen1Moves.Count != 0 && move > Legal.MaxMoveID_1)
{
res[m] = new CheckMoveResult(InheritLevelUp, gen, Invalid, LG1MoveTradeback, CurrentMove);
learnInfo.MixedGen12NonTradeback = true;
}
else
{
res[m] = new CheckMoveResult(InheritLevelUp, gen, Valid, LMoveEggLevelUp, CurrentMove);
}
learnInfo.LevelUpEggMoves.Add(m);
if (gen == 2 && learnInfo.Gen1Moves.Contains(m))
learnInfo.Gen1Moves.Remove(m);
}
if (gen <= 2 && learnInfo.Gen1Moves.Count == 0)
pkm.TradebackStatus = TradebackType.Any;
}
private static void ParseEggMoves(PKM pkm, CheckMoveResult[] res, int gen, LearnInfo learnInfo)
{
var moves = learnInfo.Source.CurrentMoves;
// Check egg moves after all the generations and all the moves, every move that can't be learned in another source should have preference
// the moves that can only be learned from egg moves should in the future check if the move combinations can be breed in gens 2 to 5
for (int m = 0; m < 4; m++)
{
if (IsCheckValid(res[m]))
continue;
int move = moves[m];
if (move == 0)
continue;
bool wasEggMove = learnInfo.Source.EggMoveSource.Contains(move);
if (wasEggMove)
{
// To learn exclusive generation 1 moves the pokemon was tradeback, but it can't be trade to generation 1
// without removing moves above MaxMoveID_1, egg moves above MaxMoveID_1 and gen 1 moves are incompatible
if (learnInfo.IsGen2Pkm && learnInfo.Gen1Moves.Count != 0 && move > Legal.MaxMoveID_1)
{
res[m] = new CheckMoveResult(EggMove, gen, Invalid, LG1MoveTradeback, CurrentMove);
learnInfo.MixedGen12NonTradeback = true;
}
else
{
res[m] = new CheckMoveResult(EggMove, gen, Valid, LMoveSourceEgg, CurrentMove);
}
learnInfo.EggMovesLearned.Add(m);
if (pkm.TradebackStatus == TradebackType.Any && pkm.Generation == 1)
pkm.TradebackStatus = TradebackType.WasTradeback;
}
if (!learnInfo.Source.EggEventSource.Contains(move))
continue;
if (!wasEggMove)
{
if (learnInfo.IsGen2Pkm && learnInfo.Gen1Moves.Count != 0 && move > Legal.MaxMoveID_1)
{
res[m] = new CheckMoveResult(SpecialEgg, gen, Invalid, LG1MoveTradeback, CurrentMove);
learnInfo.MixedGen12NonTradeback = true;
}
else
{
res[m] = new CheckMoveResult(SpecialEgg, gen, Valid, LMoveSourceEggEvent, CurrentMove);
}
}
if (pkm.TradebackStatus == TradebackType.Any && pkm.Generation == 1)
pkm.TradebackStatus = TradebackType.WasTradeback;
learnInfo.EventEggMoves.Add(m);
}
}
private static void ParseEggMovesRemaining(PKM pkm, CheckMoveResult[] res, LearnInfo learnInfo, IEncounterable enc)
{
// A pokemon could have normal egg moves and regular egg moves
// Only if all regular egg moves are event egg moves or all event egg moves are regular egg moves
var RegularEggMovesLearned = learnInfo.EggMovesLearned.Union(learnInfo.LevelUpEggMoves).ToList();
if (RegularEggMovesLearned.Count != 0 && learnInfo.EventEggMoves.Count != 0)
{
// Moves that are egg moves or event egg moves but not both
var IncompatibleEggMoves = RegularEggMovesLearned.Except(learnInfo.EventEggMoves).Union(learnInfo.EventEggMoves.Except(RegularEggMovesLearned));
foreach (int m in IncompatibleEggMoves)
{
bool isEvent = learnInfo.EventEggMoves.Contains(m);
if (isEvent)
{
if (!learnInfo.EggMovesLearned.Contains(m))
res[m] = new CheckMoveResult(res[m], Invalid, LMoveEggIncompatibleEvent, CurrentMove);
}
else
{
if (learnInfo.EggMovesLearned.Contains(m))
res[m] = new CheckMoveResult(res[m], Invalid, LMoveEggIncompatible, CurrentMove);
else if (learnInfo.LevelUpEggMoves.Contains(m))
res[m] = new CheckMoveResult(res[m], Invalid, LMoveEventEggLevelUp, CurrentMove);
}
}
}
else if (enc is not EncounterEgg)
{
// Event eggs cannot inherit moves from parents; they are not bred.
foreach (int m in RegularEggMovesLearned)
{
if (learnInfo.EggMovesLearned.Contains(m))
res[m] = new CheckMoveResult(res[m], Invalid, pkm.WasGiftEgg ? LMoveEggMoveGift : LMoveEggInvalidEvent, CurrentMove);
else if (learnInfo.LevelUpEggMoves.Contains(m))
res[m] = new CheckMoveResult(res[m], Invalid, pkm.WasGiftEgg ? LMoveEggInvalidEventLevelUpGift : LMoveEggInvalidEventLevelUp, CurrentMove);
}
}
}
private static void ParseRedYellowIncompatibleMoves(PKM pkm, IList<CheckMoveResult> res, IReadOnlyList<int> currentMoves)
{
var incompatible = GetIncompatibleRBYMoves(pkm, currentMoves);
if (incompatible.Count == 0)
return;
for (int m = 0; m < 4; m++)
{
if (incompatible.Contains(currentMoves[m]))
res[m] = new CheckMoveResult(res[m], Invalid, LG1MoveLearnSameLevel, CurrentMove);
}
}
private static IList<int> GetIncompatibleRBYMoves(PKM pkm, IReadOnlyList<int> currentMoves)
{
// Check moves that are learned at the same level in Red/Blue and Yellow, these are illegal because there is no Move Reminder in Gen1.
// There are only two incompatibilities for Gen1; there are no illegal combination in Gen2.
switch (pkm.Species)
{
// Vaporeon in Yellow learns Mist and Haze at level 42, Mist can only be learned if it leveled up in the daycare
// Vaporeon in Red/Blue learns Acid Armor at level 42 and level 47 in Yellow
case (int)Species.Vaporeon when pkm.CurrentLevel < 47 && currentMoves.Contains((int)Move.AcidArmor):
{
var incompatible = new List<int>(3);
if (currentMoves.Contains((int)Move.Mist))
incompatible.Add((int)Move.Mist);
if (currentMoves.Contains((int)Move.Haze))
incompatible.Add((int)Move.Haze);
if (incompatible.Count != 0)
incompatible.Add((int)Move.AcidArmor);
return incompatible;
}
// Flareon in Yellow learns Smog at level 42
// Flareon in Red Blue learns Leer at level 42 and level 47 in Yellow
case (int)Species.Flareon when pkm.CurrentLevel < 47 && currentMoves.Contains((int)Move.Leer) && currentMoves.Contains((int)Move.Smog):
return new[] { (int)Move.Leer, (int)Move.Smog };
default: return Array.Empty<int>();
}
}
private static void ParseEvolutionsIncompatibleMoves(PKM pkm, IList<CheckMoveResult> res, IReadOnlyList<int> moves, IReadOnlyList<int> tmhm)
{
GBRestrictions.GetIncompatibleEvolutionMoves(pkm, moves, tmhm,
out var prevSpeciesID,
out var incompatPrev,
out var incompatCurr);
if (prevSpeciesID == 0)
return;
var prev = SpeciesStrings[prevSpeciesID];
var curr = SpeciesStrings[pkm.Species];
for (int m = 0; m < 4; m++)
{
if (incompatCurr.Contains(moves[m]))
res[m] = new CheckMoveResult(res[m], Invalid, string.Format(LMoveEvoFLower, curr, prev), CurrentMove);
if (incompatPrev.Contains(moves[m]))
res[m] = new CheckMoveResult(res[m], Invalid, string.Format(LMoveEvoFHigher, curr, prev), CurrentMove);
}
}
private static void ParseShedinjaEvolveMoves(PKM pkm, IList<CheckMoveResult> res, IReadOnlyList<int> currentMoves, IReadOnlyList<IReadOnlyList<EvoCriteria>> evos)
{
var ShedinjaEvoMovesLearned = new List<int>();
var format = pkm.Format;
for (int gen = Math.Min(format, 4); gen >= 3; gen--)
{
if (evos[gen].Count != 2)
continue; // Was not evolved in this generation
if (gen == 4 && pkm.Ball != 4)
continue; // Was definitively evolved in Gen3
var maxLevel = pkm.CurrentLevel;
var ninjaskMoves = MoveList.GetShedinjaEvolveMoves(pkm, gen, maxLevel);
bool native = gen == format;
for (int m = 0; m < 4; m++)
{
if (IsCheckValid(res[m])) // already validated
continue;
if (!ninjaskMoves.Contains(currentMoves[m]))
continue;
var msg = native ? LMoveNincadaEvo : string.Format(LMoveNincadaEvoF_0, gen);
res[m] = new CheckMoveResult(ShedinjaEvo, gen, Valid, msg, CurrentMove);
ShedinjaEvoMovesLearned.Add(m);
}
}
if (ShedinjaEvoMovesLearned.Count == 0)
return;
if (ShedinjaEvoMovesLearned.Count > 1)
{
// Can't have more than one Ninjask exclusive move on Shedinja
foreach (int m in ShedinjaEvoMovesLearned)
res[m] = new CheckMoveResult(res[m], Invalid, LMoveNincada, CurrentMove);
return;
}
// Double check that the Ninjask move level isn't less than any Nincada move level
int move = ShedinjaEvoMovesLearned[0];
int g = res[move].Generation;
int levelJ = MoveList.GetShedinjaMoveLevel((int)Species.Ninjask, currentMoves[move], g);
for (int m = 0; m < 4; m++)
{
if (m != move)
continue;
if (res[m].Source != LevelUp)
continue;
int levelS = MoveList.GetShedinjaMoveLevel((int)Species.Shedinja, currentMoves[m], res[m].Generation);
if (levelS > 0)
continue;
int levelN = MoveList.GetShedinjaMoveLevel((int)Species.Nincada, currentMoves[m], res[m].Generation);
if (levelN > levelJ)
res[m] = new CheckMoveResult(res[m], Invalid, string.Format(LMoveEvoFHigher, SpeciesStrings[(int)Species.Nincada], SpeciesStrings[(int)Species.Ninjask]), CurrentMove);
}
}
private static void ParseEvolutionLevelupMove(PKM pkm, IList<CheckMoveResult> res, IReadOnlyList<int> currentMoves, LegalInfo info)
{
// Ignore if there is an invalid move or an empty move, this validation is only for 4 non-empty moves that are all valid, but invalid as a 4 combination
// Ignore Mr. Mime and Sudowodoo from generations 1 to 3, they cant be evolved from Bonsly or Munchlax
// Ignore if encounter species is the evolution species, the pokemon was not evolved by the player
if (info.EncounterMatch.Species == pkm.Species)
return;
if (!res.All(r => r?.Valid ?? false) || currentMoves.Any(m => m == 0) || (EvolutionRestrictions.BabyEvolutionWithMove.Contains(pkm.Species) && info.Generation <= 3))
return;
var ValidMoves = MoveList.GetValidPostEvolutionMoves(pkm, pkm.Species, info.EvoChainsAllGens, GameVersion.Any);
// Add the evolution moves to valid moves in case some of these moves could not be learned after evolving
switch (pkm.Species)
{
case (int)Species.MrMime: // Mr. Mime (Mime Jr with Mimic)
case (int)Species.Sudowoodo: // Sudowoodo (Bonsly with Mimic)
ValidMoves.Add((int)Move.Mimic);
break;
case (int)Species.Ambipom: // Ambipom (Aipom with Double Hit)
ValidMoves.Add((int)Move.DoubleHit);
break;
case (int)Species.Lickilicky: // Lickilicky (Lickitung with Rollout)
ValidMoves.Add((int)Move.Rollout);
break;
case (int)Species.Tangrowth: // Tangrowth (Tangela with Ancient Power)
case (int)Species.Yanmega: // Yanmega (Yanma with Ancient Power)
case (int)Species.Mamoswine: // Mamoswine (Piloswine with Ancient Power)
ValidMoves.Add((int)Move.AncientPower);
break;
case (int)Species.Sylveon: // Sylveon (Eevee with Fairy Move)
// Add every fairy moves without checking if Eevee learn it or not; pokemon moves are determined legal before this function
ValidMoves.AddRange(EvolutionRestrictions.FairyMoves);
break;
case (int)Species.Tsareena: // Tsareena (Steenee with Stomp)
ValidMoves.Add((int)Move.Stomp);
break;
}
if (currentMoves.Any(m => ValidMoves.Contains(m)))
return;
for (int m = 0; m < 4; m++)
res[m] = new CheckMoveResult(res[m], Invalid, string.Format(LMoveEvoFCombination_0, SpeciesStrings[pkm.Species]), CurrentMove);
}
private static void GetHMCompatibility(PKM pkm, IReadOnlyList<CheckResult> res, int gen, IReadOnlyList<int> moves, out bool[] HMLearned, out bool KnowDefogWhirlpool)
{
HMLearned = new bool[4];
// Check if pokemon knows HM moves from generation 3 and 4 but are not valid yet, that means it cant learn the HMs in future generations
if (gen == 4 && pkm.Format > 4)
{
IsHMSource(HMLearned, Legal.HM_4_RemovePokeTransfer);
KnowDefogWhirlpool = moves.Where((m, i) => IsDefogWhirl(m) && IsCheckInvalid(res[i])).Count() == 2;
return;
}
KnowDefogWhirlpool = false;
if (gen == 3 && pkm.Format > 3)
IsHMSource(HMLearned, Legal.HM_3);
void IsHMSource(IList<bool> flags, ICollection<int> source)
{
for (int i = 0; i < 4; i++)
flags[i] = IsCheckInvalid(res[i]) && source.Contains(moves[i]);
}
}
private static bool IsDefogWhirl(int move) => move is (int)Move.Defog or (int)Move.Whirlpool;
private static bool IsCheckInvalid(CheckResult? chk) => !(chk?.Valid ?? false);
private static bool IsCheckValid(CheckResult? chk) => chk?.Valid ?? false;
private static void FlagIncompatibleTransferHMs45(CheckMoveResult[] res, IReadOnlyList<int> currentMoves, int gen, IReadOnlyList<bool> HMLearned, bool KnowDefogWhirlpool)
{
// After all the moves from the generations 3 and 4,
// including egg moves if is the origin generation because some hidden moves are also special egg moves in gen 3
// Check if the marked hidden moves that were invalid at the start are now marked as valid, that means
// the hidden move was learned in gen 3 or 4 but was not removed when transfer to 4 or 5
if (KnowDefogWhirlpool)
{
int invalidCount = currentMoves.Where((m, i) => IsDefogWhirl(m) && IsCheckValid(res[i])).Count();
if (invalidCount == 2) // can't know both at the same time
{
for (int i = 0; i < 4; i++) // flag both moves
{
if (IsDefogWhirl(currentMoves[i]))
res[i] = new CheckMoveResult(res[i], Invalid, LTransferMoveG4HM, CurrentMove);
}
}
}
// Flag moves that are only legal when learned from a past-gen HM source
for (int i = 0; i < HMLearned.Count; i++)
{
if (HMLearned[i] && IsCheckValid(res[i]))
res[i] = new CheckMoveResult(res[i], Invalid, string.Format(LTransferMoveHM, gen, gen + 1), CurrentMove);
}
}
private static CheckMoveResult[] VerifyPreRelearnEggBase(int[] currentMoves, EncounterEgg e)
{
CheckMoveResult[] result = new CheckMoveResult[4];
_ = VerifyRelearnMoves.VerifyEggMoveset(e, result, currentMoves, CurrentMove);
return result;
}
private static void VerifyNoEmptyDuplicates(IReadOnlyList<int> moves, CheckMoveResult[] res)
{
bool emptySlot = false;
for (int i = 0; i < 4; i++)
{
var move = moves[i];
if (move == 0)
{
emptySlot = true;
continue;
}
// If an empty slot was noted for a prior move, flag the empty slots.
if (emptySlot)
{
FlagEmptySlotsBeforeIndex(moves, res, i);
emptySlot = false;
continue;
}
// Check for same move in next move slots
FlagDuplicateMovesAfterIndex(moves, res, i, move);
}
}
private static void FlagDuplicateMovesAfterIndex(IReadOnlyList<int> moves, CheckMoveResult[] res, int i, int move)
{
for (int j = i + 1; j < 4; j++)
{
if (moves[j] != move)
continue;
res[i] = new CheckMoveResult(res[i], Invalid, LMoveSourceDuplicate);
return;
}
}
private static void FlagEmptySlotsBeforeIndex(IReadOnlyList<int> moves, CheckMoveResult[] res, int i)
{
for (int k = i - 1; k >= 0; k--)
{
if (moves[k] != 0)
return;
res[k] = new CheckMoveResult(res[k], Invalid, LMoveSourceEmpty);
}
}
private static void UpdateGen1LevelUpMoves(PKM pkm, ValidEncounterMoves EncounterMoves, int defaultLvlG1, int generation, LegalInfo info)
{
if (generation >= 3)
return;
var lvlG1 = info.EncounterMatch.LevelMin + 1;
if (lvlG1 == defaultLvlG1)
return;
EncounterMoves.LevelUpMoves[1] = MoveList.GetValidMoves(pkm, info.EvoChainsAllGens[1], generation: 1, minLvLG1: lvlG1, types: MoveSourceType.LevelUp).ToList();
}
private static void UpdateGen2LevelUpMoves(PKM pkm, ValidEncounterMoves EncounterMoves, int defaultLvlG2, int generation, LegalInfo info)
{
if (generation >= 3)
return;
var lvlG2 = info.EncounterMatch.LevelMin + 1;
if (lvlG2 == defaultLvlG2)
return;
EncounterMoves.LevelUpMoves[2] = MoveList.GetValidMoves(pkm, info.EvoChainsAllGens[2], generation: 2, minLvLG2: defaultLvlG2, types: MoveSourceType.LevelUp).ToList();
}
}
}