PKHeX/PKHeX.Core/Legality/Encounters/Verifiers/VerifyCurrentMoves.cs
Kurt 8312c52cc1 Make Move[] readonly list
contract: don't modify the template movesets
mystery gift now exposes IRelearn, remove unnecessary type checks
2020-01-18 16:46:38 -08:00

917 lines
44 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using static PKHeX.Core.LegalityCheckStrings;
using static PKHeX.Core.LegalityAnalysis;
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)
{
int[] Moves = pkm.Moves;
var res = ParseMovesForEncounters(pkm, info, Moves);
// Duplicate Moves Check
VerifyNoEmptyDuplicates(Moves, res);
if (Moves[0] == 0) // Can't have an empty moveslot for the first move.
res[0] = new CheckMoveResult(res[0], Invalid, LMoveSourceEmpty, Move);
return res;
}
private static CheckMoveResult[] ParseMovesForEncounters(PKM pkm, LegalInfo info, int[] Moves)
{
if (pkm.Species == (int)Species.Smeargle) // special handling for Smeargle
return ParseMovesForSmeargle(pkm, Moves, 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;
if (info.EncounterMatch is IGeneration g && g.Generation <= 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, g.Generation, 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, g.Generation, info);
}
var res = info.Generation < 6
? ParseMovesPre3DS(pkm, Moves, info)
: ParseMoves3DS(pkm, Moves, 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, int[] Moves, LegalInfo info)
{
if (!pkm.IsEgg)
return ParseMovesSketch(pkm, Moves);
// can only know sketch as egg
var levelup = new List<int>[info.EvoChainsAllGens.Length];
levelup[pkm.Format] = new List<int>(1) {166};
info.EncounterMoves = new ValidEncounterMoves(levelup);
var source = new MoveParseSource { CurrentMoves = pkm.Moves, };
return ParseMoves(pkm, source, info);
}
private static CheckMoveResult[] ParseMovesIsEggPreRelearn(PKM pkm, int[] Moves, IReadOnlyList<int> SpecialMoves, EncounterEgg e)
{
var infoset = new EggInfoSource(pkm, SpecialMoves, e);
return VerifyPreRelearnEggBase(pkm, Moves, infoset);
}
private static CheckMoveResult[] ParseMovesWasEggPreRelearn(PKM pkm, int[] Moves, 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 && Legal.MixedGenderBreeding.Contains(e.Species));
int BaseLevel = AllowLevelUp ? 100 : e.LevelMin;
var LevelUp = Legal.GetBaseEggMoves(pkm, e.Species, e.Form, e.Version, BaseLevel);
var TradebackPreevo = pkm.Format == 2 && info.EncounterMatch.Species > 151;
var NonTradebackLvlMoves = TradebackPreevo
? Legal.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, e.Species, e.Form, e.Version);
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 Special = volt && notEvent ? new[] { 344 } : Array.Empty<int>(); // Volt Tackle for bred Pichu line
var source = new MoveParseSource
{
CurrentMoves = Moves,
SpecialSource = Special,
NonTradeBackLevelUpMoves = NonTradebackLvlMoves,
EggLevelUpSource = LevelUp,
EggMoveSource = Egg,
EggEventSource = EventEggMoves,
};
return ParseMoves(pkm, source, info);
}
private static CheckMoveResult[] ParseMovesSketch(PKM pkm, int[] Moves)
{
var res = new CheckMoveResult[4];
for (int i = 0; i < 4; i++)
{
res[i] = Legal.InvalidSketch.Contains(Moves[i])
? new CheckMoveResult(Unknown, pkm.Format, Invalid, LMoveSourceInvalidSketch, Move)
: new CheckMoveResult(Sketch, pkm.Format, Move);
}
return res;
}
private static CheckMoveResult[] ParseMoves3DS(PKM pkm, int[] Moves, LegalInfo info)
{
info.EncounterMoves.Relearn = info.Generation >= 6 ? pkm.RelearnMoves : Array.Empty<int>();
if (info.EncounterMatch is IMoveset)
return ParseMovesSpecialMoveset(pkm, Moves, info);
// Everything else
return ParseMovesRelearn(pkm, Moves, info);
}
private static CheckMoveResult[] ParseMovesPre3DS(PKM pkm, int[] Moves, LegalInfo info)
{
if (pkm.IsEgg && info.EncounterMatch is EncounterEgg egg)
{
var SpecialMoves = GetSpecialMoves(info.EncounterMatch);
return ParseMovesIsEggPreRelearn(pkm, Moves, SpecialMoves, egg);
}
if (info.EncounterMatch is EncounterEgg e)
return ParseMovesWasEggPreRelearn(pkm, Moves, info, e);
if (info.Generation <= 2 && info.EncounterMatch is IGeneration g && (g.Generation == 1 || (g.Generation == 2 && !ParseSettings.AllowGen2MoveReminder(pkm)))) // fixed encounter moves without relearning
return ParseMovesGenGB(pkm, Moves, info);
return ParseMovesSpecialMoveset(pkm, Moves, info);
}
private static CheckMoveResult[] ParseMovesGenGB(PKM pkm, int[] Moves, LegalInfo info)
{
var res = new CheckMoveResult[4];
var G1Encounter = info.EncounterMatch;
if (G1Encounter == null)
return ParseMovesSpecialMoveset(pkm, Moves, info);
var InitialMoves = Array.Empty<int>();
var SpecialMoves = GetSpecialMoves(info.EncounterMatch);
var games = info.EncounterMatch is IGeneration g && g.Generation == 1 ? GBRestrictions.GetGen1Versions(info) : GBRestrictions.GetGen2Versions(info, pkm.Korean);
foreach (var ver in games)
{
var VerInitialMoves = MoveLevelUp.GetEncounterMoves(G1Encounter.Species, 0, G1Encounter.LevelMin, ver);
if (VerInitialMoves.Intersect(InitialMoves).Count() == VerInitialMoves.Length)
return res;
var source = new MoveParseSource
{
CurrentMoves = Moves,
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, int[] Moves, LegalInfo info)
{
var source = new MoveParseSource
{
CurrentMoves = Moves,
SpecialSource = GetSpecialMoves(info.EncounterMatch),
};
return ParseMoves(pkm, source, info);
}
private static IReadOnlyList<int> GetSpecialMoves(IEncounterable EncounterMatch)
{
if (EncounterMatch is IMoveset mg)
return mg.Moves;
return Array.Empty<int>();
}
private static CheckMoveResult[] ParseMovesRelearn(PKM pkm, int[] Moves, LegalInfo info)
{
var source = new MoveParseSource
{
CurrentMoves = Moves,
SpecialSource = GetSpecialMoves(info.EncounterMatch),
};
if (info.EncounterMatch is EncounterEgg e)
source.EggMoveSource = MoveEgg.GetEggMoves(pkm, e.Species, e.Form, e.Version);
var res = ParseMoves(pkm, source, info);
var relearn = pkm.RelearnMoves;
for (int i = 0; i < 4; i++)
{
if ((pkm.IsEgg || res[i].Flag) && !relearn.Contains(Moves[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.Format != 1 ? 1 : GBRestrictions.GetRequiredMoveCount(pkm, source.CurrentMoves, info, source.Base);
// 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, Move);
else if (info.EncounterMoves.Relearn.Contains(source.CurrentMoves[m]))
res[m] = new CheckMoveResult(Relearn, info.Generation, Valid, LMoveSourceRelearn, Move) { Flag = true };
}
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 = GetGenMovesCheckOrder(pkm);
if (pkm.Format <= 2)
generations = generations.Where(z => z < info.EncounterMoves.LevelUpMoves.Length).ToArray();
int lastgen = generations.LastOrDefault();
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);
for (int m = 0; m < 4; m++)
{
if (res[m] == null)
res[m] = new CheckMoveResult(Unknown, info.Generation, Invalid, LMoveSourceInvalid, Move);
}
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, gen, learnInfo);
switch (gen)
{
case 1:
case 2:
ParseMovesByGeneration12(pkm, res, learnInfo.Source.CurrentMoves, gen, info, learnInfo);
break;
case 3:
case 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 (Legal.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, Move);
continue;
}
if (gen == 2 && learnInfo.Source.EggMoveSource.Contains(move))
res[m] = new CheckMoveResult(EggMove, gen, Valid, LMoveSourceEgg, Move);
else if (learnInfo.Source.Base.Contains(move))
res[m] = new CheckMoveResult(Initial, gen, Valid, native ? LMoveSourceDefault : string.Format(LMoveFDefault_0, gen), Move);
}
if (info.EncounterMoves.LevelUpMoves[gen].Contains(move))
res[m] = new CheckMoveResult(LevelUp, gen, Valid, native ? LMoveSourceLevelUp : string.Format(LMoveFLevelUp_0, gen), Move);
else if (info.EncounterMoves.TMHMMoves[gen].Contains(move))
res[m] = new CheckMoveResult(TMHM, gen, Valid, native ? LMoveSourceTMHM : string.Format(LMoveFTMHM_0, gen), Move);
else if (info.EncounterMoves.TutorMoves[gen].Contains(move))
res[m] = new CheckMoveResult(Tutor, gen, Valid, native ? LMoveSourceTutor : string.Format(LMoveFTutor_0, gen), Move);
else if (gen == info.Generation && learnInfo.Source.SpecialSource.Contains(move))
res[m] = new CheckMoveResult(Special, gen, Valid, LMoveSourceSpecial, Move);
else if (gen >= 8 && GetIsSharedEggMove(pkm, gen, move))
res[m] = new CheckMoveResult(Shared, gen, Valid, native ? LMoveSourceShared : string.Format(LMoveSourceSharedF, gen), Move);
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 bool GetIsSharedEggMove(PKM pkm, int gen, int move)
{
if (gen < 8 || pkm.IsEgg)
return false;
var table = PersonalTable.SWSH;
var entry = (PersonalInfoSWSH)table.GetFormeEntry(pkm.Species, pkm.AltForm);
var baseSpecies = entry.BaseSpecies;
var baseForm = entry.FormIndex;
// since we aren't storing entry->seed_poke_index, there's oddballs we can't handle with just personal data (?)
if (pkm.Species == (int) Species.Indeedee)
baseForm = pkm.AltForm;
var egg = MoveEgg.GetEggMoves(pkm, baseSpecies, baseForm, GameVersion.SW);
return egg.Contains(move);
}
private static void ParseMovesByGeneration12(PKM pkm, CheckMoveResult[] res, int[] moves, 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, Move);
foreach (int m in learnInfo.Gen2PreevoMoves)
res[m] = new CheckMoveResult(res[m], Invalid, LG1TradebackPreEvoMove, Move);
}
if (gen == 1 && pkm.Format == 1 && pkm.Gen1_NotTradeback)
{
ParseRedYellowIncompatibleMoves(pkm, res, moves);
ParseEvolutionsIncompatibleMoves(pkm, res, moves, info.EncounterMoves.TMHMMoves[1]);
}
}
private static void ParseMovesByGenerationLast(PKM pkm, CheckMoveResult[] res, int gen, LearnInfo learnInfo)
{
ParseEggMovesInherited(pkm, res, gen, learnInfo);
ParseEggMoves(pkm, res, gen, learnInfo);
ParseEggMovesRemaining(pkm, res, learnInfo);
}
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++)
{
if (IsCheckValid(res[m])) // already validated
continue;
if (moves[m] == 0)
continue;
if (!learnInfo.Source.EggLevelUpSource.Contains(moves[m])) // Check if contains level-up egg moves from parents
continue;
if (learnInfo.IsGen2Pkm && learnInfo.Gen1Moves.Count != 0 && moves[m] > Legal.MaxMoveID_1)
{
res[m] = new CheckMoveResult(InheritLevelUp, gen, Invalid, LG1MoveTradeback, Move);
learnInfo.MixedGen12NonTradeback = true;
}
else
{
res[m] = new CheckMoveResult(InheritLevelUp, gen, Valid, LMoveEggLevelUp, Move);
}
learnInfo.LevelUpEggMoves.Add(m);
if (pkm.TradebackStatus == TradebackType.Any && pkm.GenNumber == 1)
pkm.TradebackStatus = TradebackType.WasTradeback;
}
}
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, Move);
learnInfo.MixedGen12NonTradeback = true;
}
else
{
res[m] = new CheckMoveResult(EggMove, gen, Valid, LMoveSourceEgg, Move) { Flag = true };
}
learnInfo.EggMovesLearned.Add(m);
if (pkm.TradebackStatus == TradebackType.Any && pkm.GenNumber == 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, Move);
learnInfo.MixedGen12NonTradeback = true;
}
else
{
res[m] = new CheckMoveResult(SpecialEgg, gen, Valid, LMoveSourceEggEvent, Move);
}
}
if (pkm.TradebackStatus == TradebackType.Any && pkm.GenNumber == 1)
pkm.TradebackStatus = TradebackType.WasTradeback;
learnInfo.EventEggMoves.Add(m);
}
}
private static void ParseEggMovesRemaining(PKM pkm, CheckMoveResult[] res, LearnInfo learnInfo)
{
// 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)).ToList();
if (IncompatibleEggMoves.Count == 0)
return;
foreach (int m in IncompatibleEggMoves)
{
if (learnInfo.EventEggMoves.Contains(m) && !learnInfo.EggMovesLearned.Contains(m))
res[m] = new CheckMoveResult(res[m], Invalid, LMoveEggIncompatibleEvent, Move);
else if (!learnInfo.EventEggMoves.Contains(m) && learnInfo.EggMovesLearned.Contains(m))
res[m] = new CheckMoveResult(res[m], Invalid, LMoveEggIncompatible, Move);
else if (!learnInfo.EventEggMoves.Contains(m) && learnInfo.LevelUpEggMoves.Contains(m))
res[m] = new CheckMoveResult(res[m], Invalid, LMoveEventEggLevelUp, Move);
}
}
else if (RegularEggMovesLearned.Count != 0 && (pkm.WasGiftEgg || pkm.WasEventEgg))
{
// 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, Move);
else if (learnInfo.LevelUpEggMoves.Contains(m))
res[m] = new CheckMoveResult(res[m], Invalid, pkm.WasGiftEgg ? LMoveEggInvalidEventLevelUpGift : LMoveEggInvalidEventLevelUp, Move);
}
}
}
private static void ParseRedYellowIncompatibleMoves(PKM pkm, IList<CheckMoveResult> res, int[] moves)
{
var incompatible = GetIncompatibleRBYMoves(pkm, moves);
if (incompatible.Count == 0)
return;
for (int m = 0; m < 4; m++)
{
if (incompatible.Contains(moves[m]))
res[m] = new CheckMoveResult(res[m], Invalid, LG1MoveLearnSameLevel, Move);
}
}
private static IList<int> GetIncompatibleRBYMoves(PKM pkm, int[] moves)
{
// 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 && moves.Contains(151):
{
var incompatible = new List<int>(3);
if (moves.Contains(54))
incompatible.Add(54);
if (moves.Contains(114))
incompatible.Add(114);
if (incompatible.Count != 0)
incompatible.Add(151);
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 && moves.Contains(43) && moves.Contains(123):
return new[] {43, 123};
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), Move);
if (incompatPrev.Contains(moves[m]))
res[m] = new CheckMoveResult(res[m], Invalid, string.Format(LMoveEvoFHigher, curr, prev), Move);
}
}
private static void ParseShedinjaEvolveMoves(PKM pkm, IList<CheckMoveResult> res, int[] moves)
{
var ShedinjaEvoMovesLearned = new List<int>();
for (int gen = Math.Min(pkm.Format, 4); gen >= 3; gen--)
{
var maxLevel = pkm.CurrentLevel;
var ninjaskMoves = Legal.GetShedinjaEvolveMoves(pkm, gen, maxLevel);
bool native = gen == pkm.Format;
for (int m = 0; m < 4; m++)
{
if (IsCheckValid(res[m])) // already validated
continue;
if (!ninjaskMoves.Contains(moves[m]))
continue;
var msg = native ? LMoveNincadaEvo : string.Format(LMoveNincadaEvoF_0, gen);
res[m] = new CheckMoveResult(ShedinjaEvo, gen, Valid, msg, Move);
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, Move);
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 = Legal.GetShedinjaMoveLevel((int)Species.Ninjask, moves[move], g);
for (int m = 0; m < 4; m++)
{
if (m != move)
continue;
if (res[m].Source != LevelUp)
continue;
int levelS = Legal.GetShedinjaMoveLevel((int)Species.Shedinja, moves[m], res[m].Generation);
if (levelS > 0)
continue;
int levelN = Legal.GetShedinjaMoveLevel((int)Species.Nincada, moves[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]), Move);
}
}
private static void ParseEvolutionLevelupMove(PKM pkm, IList<CheckMoveResult> res, int[] moves, 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) || moves.Any(m => m == 0) || (Legal.BabyEvolutionWithMove.Contains(pkm.Species) && info.Generation <= 3))
return;
var ValidMoves = Legal.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(102);
break;
case (int)Species.Ambipom: // Ambipom (Aipom with Double Hit)
ValidMoves.Add(458);
break;
case (int)Species.Lickilicky: // Lickilicky (Lickitung with Rollout)
ValidMoves.Add(205);
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(246);
break;
case (int)Species.Sylveon: // Sylveon (Eevee with Fairy Move)
// Add every fairy moves without cheking if eevee learn it or not, pokemon moves are determined legal before this function
ValidMoves.AddRange(Legal.FairyMoves);
break;
case (int)Species.Tsareena: // Tsareena (Steenee with Stomp)
ValidMoves.Add(023);
break;
}
if (moves.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]), Move);
}
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 == 250 || move == 432;
private static bool IsCheckInvalid(CheckResult chk) => !(chk?.Valid ?? false);
private static bool IsCheckValid(CheckResult chk) => chk?.Valid ?? false;
private static void FlagIncompatibleTransferHMs45(CheckMoveResult[] res, int[] moves, int gen, 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 = moves.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(moves[i]))
res[i] = new CheckMoveResult(res[i], Invalid, LTransferMoveG4HM, Move);
}
}
}
// Flag moves that are only legal when learned from a past-gen HM source
for (int i = 0; i < HMLearned.Length; i++)
{
if (HMLearned[i] && IsCheckValid(res[i]))
res[i] = new CheckMoveResult(res[i], Invalid, string.Format(LTransferMoveHM, gen, gen + 1), Move);
}
}
/* Similar to verifyRelearnEgg but in pre relearn generation is the moves what should match the expected order but only if the pokemon is inside an egg */
private static CheckMoveResult[] VerifyPreRelearnEggBase(PKM pkm, int[] Moves, EggInfoSource infoset)
{
CheckMoveResult[] res = new CheckMoveResult[4];
var gen = pkm.GenNumber;
// Obtain level1 moves
var reqBase = GetRequiredBaseMoveCount(Moves, infoset);
var sb = new System.Text.StringBuilder();
// Check if the required amount of Base Egg Moves are present.
for (int i = 0; i < reqBase; i++)
{
if (infoset.Base.Contains(Moves[i]))
{
res[i] = new CheckMoveResult(Initial, gen, Valid, LMoveRelearnEgg, Move);
continue;
}
// mark remaining base egg moves missing
for (int z = i; z < reqBase; z++)
res[z] = new CheckMoveResult(Initial, gen, Invalid, LMoveRelearnEggMissing, Move);
// provide the list of suggested base moves for the last required slot
sb.Append(string.Join(", ", GetMoveNames(infoset.Base)));
break;
}
int moveoffset = reqBase;
int endSpecial = moveoffset + infoset.Special.Count;
// Check also if the required amount of Special Egg Moves are present, ir are after base moves
for (int i = moveoffset; i < endSpecial; i++)
{
if (infoset.Special.Contains(Moves[i]))
{
res[i] = new CheckMoveResult(SpecialEgg, gen, Valid, LMoveSourceEggEvent, Move);
continue;
}
// Not in special moves, mark remaining special egg moves missing
for (int z = i; z < endSpecial; z++)
res[z] = new CheckMoveResult(SpecialEgg, gen, Invalid, LMoveEggMissing, Move);
// provide the list of suggested base moves and species moves for the last required slot
if (sb.Length == 0)
sb.Append(string.Join(", ", GetMoveNames(infoset.Base)));
sb.Append(", ");
sb.Append(string.Join(", ", GetMoveNames(infoset.Special)));
break;
}
if (sb.Length != 0)
res[reqBase > 0 ? reqBase - 1 : 0].Comment = string.Format(Environment.NewLine + LMoveFExpect_0, sb);
// Inherited moves appear after the required base moves.
var AllowInheritedSeverity = infoset.AllowInherited ? Valid : Invalid;
for (int i = reqBase + infoset.Special.Count; i < 4; i++)
{
if (Moves[i] == 0) // empty
res[i] = new CheckMoveResult(None, gen, Valid, LMoveSourceEmpty, Move);
else if (infoset.Egg.Contains(Moves[i])) // inherited egg move
res[i] = new CheckMoveResult(EggMove, gen, AllowInheritedSeverity, infoset.AllowInherited ? LMoveEggInherited : LMoveEggInvalidEvent, Move);
else if (infoset.LevelUp.Contains(Moves[i])) // inherited lvl moves
res[i] = new CheckMoveResult(InheritLevelUp, gen, AllowInheritedSeverity, infoset.AllowInherited ? LMoveEggLevelUp : LMoveEggInvalidEventLevelUp, Move);
else if (infoset.TMHM.Contains(Moves[i])) // inherited TMHM moves
res[i] = new CheckMoveResult(TMHM, gen, AllowInheritedSeverity, infoset.AllowInherited ? LMoveEggTMHM : LMoveEggInvalidEventTMHM, Move);
else if (infoset.Tutor.Contains(Moves[i])) // inherited tutor moves
res[i] = new CheckMoveResult(Tutor, gen, AllowInheritedSeverity, infoset.AllowInherited ? LMoveEggInheritedTutor : LMoveEggInvalidEventTutor, Move);
else // not inheritable, flag
res[i] = new CheckMoveResult(Unknown, gen, Invalid, LMoveEggInvalid, Move);
}
return res;
}
private static int GetRequiredBaseMoveCount(int[] Moves, EggInfoSource infoset)
{
int baseCt = infoset.Base.Count;
if (baseCt > 4) baseCt = 4;
// Obtain Inherited moves
var inherited = Moves.Where(m => m != 0 && infoset.IsInherited(m)).ToList();
int inheritCt = inherited.Count;
// Get required amount of base moves
int unique = infoset.Base.Union(inherited).Count();
int reqBase = inheritCt == 4 || baseCt + inheritCt > 4 ? 4 - inheritCt : baseCt;
if (Moves.Count(m => m != 0) < Math.Min(4, infoset.Base.Count))
reqBase = Math.Min(4, unique);
return reqBase;
}
private static void VerifyNoEmptyDuplicates(int[] Moves, CheckMoveResult[] res)
{
bool emptySlot = false;
for (int i = 0; i < 4; i++)
{
if (Moves[i] == 0)
emptySlot = true;
else if (emptySlot)
res[i] = new CheckMoveResult(res[i], Invalid, LMoveSourceEmpty, res[i].Identifier);
else if (Moves.Count(m => m == Moves[i]) > 1)
res[i] = new CheckMoveResult(res[i], Invalid, LMoveSourceDuplicate, res[i].Identifier);
}
}
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] = Legal.GetValidMoves(pkm, info.EvoChainsAllGens[1], generation: 1, minLvLG1: lvlG1, LVL: true, Tutor: false, Machine: false, MoveReminder: false).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] = Legal.GetValidMoves(pkm, info.EvoChainsAllGens[2], generation: 2, minLvLG2: defaultLvlG2, LVL: true, Tutor: false, Machine: false, MoveReminder: false).ToList();
}
/// <summary>
/// Gets the generation numbers in descending order for iterating over.
/// </summary>
public static int[] GetGenMovesCheckOrder(PKM pkm)
{
if (pkm.Format < 3)
return GetGenMovesCheckOrderGB(pkm, pkm.Format);
if (pkm.VC)
return GetGenMovesOrderVC(pkm);
return GetGenMovesOrder(pkm.Format, pkm.GenNumber);
}
private static int[] GetGenMovesOrderVC(PKM pkm)
{
// VC case: check transfer games in reverse order (8, 7..) then past games.
int[] xfer = GetGenMovesOrder(pkm.Format, 7);
int[] past = GetGenMovesCheckOrderGB(pkm, pkm.GenNumber);
int end = xfer.Length;
Array.Resize(ref xfer, xfer.Length + past.Length);
past.CopyTo(xfer, end);
return xfer;
}
private static readonly int[] G2 = {2};
private static readonly int[] G12 = {1, 2};
private static readonly int[] G21 = {2, 1};
private static int[] GetGenMovesCheckOrderGB(PKM pkm, int originalGeneration)
{
if (originalGeneration == 2)
return pkm.Korean ? G2 : G21;
return G12; // RBY
}
private static int[] GetGenMovesOrder(int start, int end)
{
if (end < 0)
return Array.Empty<int>();
if (start <= end)
return new[] {start};
var order = new int[start - end + 1];
for (int i = 0; i < order.Length; i++)
order[i] = start - i;
return order;
}
}
}