using System; namespace PKHeX.Core; /// /// Encounter Slot found in . /// /// public sealed record EncounterSlot8a : EncounterSlot, IAlpha, IMasteryInitialMoveShop8 { public override int Generation => 8; public SlotType Type => Area.Type; public bool IsAlpha { get => AlphaType is not 0; set => throw new InvalidOperationException("Do not mutate this field."); } public byte FlawlessIVCount { get; } public Gender Gender { get; } public byte AlphaType { get; } // 0=Never, 1=Random, 2=Guaranteed public EncounterSlot8a(EncounterArea8a area, ushort species, byte form, byte min, byte max, byte alphaType, byte flawlessIVs, Gender gender) : base(area, species, form, min, max) { AlphaType = alphaType; FlawlessIVCount = flawlessIVs; Gender = gender; } public bool HasAlphaMove => IsAlpha && Type is not SlotType.Landmark; protected override void SetPINGA(PKM pk, EncounterCriteria criteria) { base.SetPINGA(pk, criteria); if (Gender != Gender.Random) pk.Gender = (int)Gender; var para = GetParams(); var (_, slotSeed) = Overworld8aRNG.ApplyDetails(pk, criteria, para, HasAlphaMove); if (LevelMin != LevelMax) pk.CurrentLevel = pk.Met_Level = Overworld8aRNG.GetRandomLevel(slotSeed, LevelMin, LevelMax); } protected override void SetEncounterMoves(PKM pk, GameVersion version, int level) { var pa8 = (PA8)pk; Span moves = stackalloc int[4]; var index = PersonalTable.LA.GetFormIndex(Species, Form); var mastery = Legal.MasteryLA[index]; var learn = Legal.LevelUpLA[index]; if (pa8.AlphaMove != 0) { moves[0] = pa8.AlphaMove; learn.SetEncounterMovesBackwards(level, moves, 1); } else { learn.SetEncounterMoves(level, moves); } pk.SetMoves(moves); pk.SetMaximumPPCurrent(moves); foreach (var move in moves) { if (mastery.GetMoveLevel(move) <= level) pa8.SetMasteryFlagMove(move); } } protected override void SetFormatSpecificData(PKM pk) { var pa8 = (PA8)pk; if (IsAlpha) pa8.IsAlpha = true; pa8.HeightScalarCopy = pa8.HeightScalar; } protected override void ApplyDetailsBall(PKM pk) => pk.Ball = (int)Ball.LAPoke; public override EncounterMatchRating GetMatchRating(PKM pkm) { if (Gender is not Gender.Random && pkm.Gender != (int)Gender) return EncounterMatchRating.PartialMatch; var result = GetMatchRatingInternal(pkm); var orig = base.GetMatchRating(pkm); return result > orig ? result : orig; } private EncounterMatchRating GetMatchRatingInternal(PKM pkm) { if (pkm is IAlpha a && a.IsAlpha != IsAlpha) return EncounterMatchRating.DeferredErrors; if (FlawlessIVCount is not 0 && pkm.FlawlessIVCount < FlawlessIVCount) return EncounterMatchRating.DeferredErrors; if (IsFormArgMismatch(pkm)) return EncounterMatchRating.DeferredErrors; if (!IsForcedMasteryCorrect(pkm)) return EncounterMatchRating.DeferredErrors; return GetMoveCompatibility(pkm); } private bool IsFormArgMismatch(PKM pkm) => pkm.Species switch { (int)Core.Species.Wyrdeer when Species is not (int)Core.Species.Wyrdeer && pkm is IFormArgument { FormArgument: 0 } => true, (int)Core.Species.Overqwil when Species is not (int)Core.Species.Overqwil && pkm is IFormArgument { FormArgument: 0 } => true, (int)Core.Species.Basculegion when Species is not (int)Core.Species.Basculegion && pkm is IFormArgument { FormArgument: 0 } => true, _ => false, }; private EncounterMatchRating GetMoveCompatibility(PKM pkm) { // Check for Alpha move compatibility. if (pkm is not PA8 pa) return EncounterMatchRating.Match; var alphaMove = pa.AlphaMove; bool hasAlphaMove = alphaMove != 0; if (!pa.IsAlpha || Type is SlotType.Landmark) return !hasAlphaMove ? EncounterMatchRating.Match : EncounterMatchRating.DeferredErrors; var pi = PersonalTable.LA.GetFormEntry(Species, Form); var tutors = pi.SpecialTutors[0]; if (alphaMove is 0) { bool hasAnyTutor = Array.IndexOf(tutors, true) >= 0; if (hasAnyTutor) return EncounterMatchRating.Deferred; } else { var idx = pa.MoveShopPermitIndexes; var index = idx.IndexOf(idx); if (index == -1) return EncounterMatchRating.Deferred; if (!tutors[index]) return EncounterMatchRating.Deferred; } return EncounterMatchRating.Match; } public bool IsForcedMasteryCorrect(PKM pkm) { if (pkm is not IMoveShop8Mastery p) return true; // Can't check. Span moves = stackalloc int[4]; var level = pkm.Met_Level; var index = PersonalTable.LA.GetFormIndex(Species, Form); var mastery = Legal.MasteryLA[index]; var learn = Legal.LevelUpLA[index]; ushort alpha = 0; if (pkm is PA8 { AlphaMove: not 0 } pa8) { moves[0] = alpha = pa8.AlphaMove; learn.SetEncounterMovesBackwards(level, moves, 1); } else { learn.SetEncounterMoves(level, moves); } return p.IsValidMasteredEncounter(moves, mastery, level, alpha); } private OverworldParam8a GetParams() { var pt = PersonalTable.LA; var entry = pt.GetFormEntry(Species, Form); var gender = (byte)entry.Gender; return new OverworldParam8a { IsAlpha = IsAlpha, FlawlessIVs = FlawlessIVCount, Shiny = Shiny, RollCount = GetRollCount(Type), GenderRatio = gender, }; } // hardcoded 7 to assume max dex progress + shiny charm. private const int MaxRollCount = 7; private static byte GetRollCount(SlotType type) => (byte)(MaxRollCount + type switch { SlotType.OverworldMMO => 12, SlotType.OverworldMass => 25, _ => 0, }); }