mirror of
https://github.com/kwsch/PKHeX
synced 2024-12-18 08:23:12 +00:00
332 lines
14 KiB
C#
332 lines
14 KiB
C#
using System;
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using static PKHeX.Core.LegalityCheckStrings;
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using static PKHeX.Core.Species;
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namespace PKHeX.Core
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{
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/// <summary>
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/// Verifies the <see cref="PKM.Form"/> value.
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/// </summary>
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public sealed class FormVerifier : Verifier
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{
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protected override CheckIdentifier Identifier => CheckIdentifier.Form;
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public override void Verify(LegalityAnalysis data)
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{
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var pkm = data.pkm;
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if (pkm.Format < 4)
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return; // no forms exist
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var result = VerifyForm(data);
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data.AddLine(result);
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if (pkm is IFormArgument f)
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data.AddLine(VerifyFormArgument(data, f));
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}
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private CheckResult VALID => GetValid(LFormValid);
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private CheckResult VerifyForm(LegalityAnalysis data)
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{
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var pkm = data.pkm;
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var PersonalInfo = data.PersonalInfo;
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int count = PersonalInfo.FormCount;
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var form = pkm.Form;
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if (count <= 1 && form == 0)
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return VALID; // no forms to check
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var species = pkm.Species;
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var enc = data.EncounterMatch;
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var Info = data.Info;
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if (!PersonalInfo.IsFormWithinRange(form) && !FormInfo.IsValidOutOfBoundsForm(species, form, Info.Generation))
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return GetInvalid(string.Format(LFormInvalidRange, count - 1, form));
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switch (enc)
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{
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case EncounterEgg e when FormInfo.IsTotemForm(species, form, e.Generation):
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return GetInvalid(LFormInvalidGame);
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}
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switch ((Species)species)
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{
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case Pikachu when Info.Generation == 6: // Cosplay
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bool isStatic = enc is EncounterStatic;
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bool validCosplay = form == (isStatic ? enc.Form : 0);
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if (!validCosplay)
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return GetInvalid(isStatic ? LFormPikachuCosplayInvalid : LFormPikachuCosplay);
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break;
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case Pikachu when Info.Generation >= 7: // Cap
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bool validCap = form == (enc is EncounterInvalid or EncounterEgg ? 0 : enc.Form);
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if (!validCap)
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{
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bool gift = enc is MysteryGift g && g.Form != form;
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var msg = gift ? LFormPikachuEventInvalid : LFormInvalidGame;
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return GetInvalid(msg);
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}
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break;
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case Unown when Info.Generation == 2 && form >= 26:
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return GetInvalid(string.Format(LFormInvalidRange, "Z", form == 26 ? "!" : "?"));
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case Giratina when form == 1 ^ pkm.HeldItem == 112: // Giratina, Origin form only with Griseous Orb
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return GetInvalid(LFormItemInvalid);
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case Arceus:
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{
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int arceus = GetArceusFormFromHeldItem(pkm.HeldItem, pkm.Format);
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return arceus != form ? GetInvalid(LFormItemInvalid) : GetValid(LFormItem);
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}
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case Keldeo when pkm.Format < 8 && enc.Generation != 5:
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// can mismatch in gen5 via BW tutor and transfer up
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// can mismatch in gen8+ as the form activates in battle when knowing the move; outside of battle can be either state.
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bool hasSword = pkm.HasMove((int) Move.SecretSword);
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bool isSword = pkm.Form == 1;
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if (isSword != hasSword)
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return GetInvalid(LMoveKeldeoMismatch);
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break;
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case Genesect:
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{
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int genesect = GetGenesectFormFromHeldItem(pkm.HeldItem);
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return genesect != form ? GetInvalid(LFormItemInvalid) : GetValid(LFormItem);
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}
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case Greninja:
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if (form > 1) // Ash Battle Bond active
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return GetInvalid(LFormBattle);
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if (form != 0 && enc is not MysteryGift) // Formes are not breedable, MysteryGift already checked
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return GetInvalid(string.Format(LFormInvalidRange, 0, form));
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break;
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case Scatterbug or Spewpa:
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if (form > 17) // Fancy & Pokéball
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return GetInvalid(LFormVivillonEventPre);
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if (pkm is not IRegionOrigin tr)
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break;
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if (!Vivillon3DS.IsPatternValid(form, (byte)tr.Country, (byte)tr.Region))
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data.AddLine(Get(LFormVivillonInvalid, Severity.Fishy));
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break;
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case Vivillon:
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if (form > 17) // Fancy & Pokéball
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{
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if (enc is not MysteryGift)
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return GetInvalid(LFormVivillonInvalid);
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return GetValid(LFormVivillon);
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}
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if (pkm is not IRegionOrigin trv)
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break;
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if (!Vivillon3DS.IsPatternValid(form, (byte)trv.Country, (byte)trv.Region))
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data.AddLine(Get(LFormVivillonInvalid, Severity.Fishy));
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break;
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case Floette when form == 5: // Floette Eternal Flower -- Never Released
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if (enc is not MysteryGift)
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return GetInvalid(LFormEternalInvalid);
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return GetValid(LFormEternal);
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case Meowstic when form != pkm.Gender:
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return GetInvalid(LGenderInvalidNone);
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case Silvally:
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{
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int silvally = GetSilvallyFormFromHeldItem(pkm.HeldItem);
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return silvally != form ? GetInvalid(LFormItemInvalid) : GetValid(LFormItem);
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}
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// Form doesn't exist in SM; cannot originate from that game.
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case Lillipup when enc.Generation == 7 && form == 1 && pkm.SM:
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case Lycanroc when enc.Generation == 7 && form == 2 && pkm.SM:
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return GetInvalid(LFormInvalidGame);
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// Toxel encounters have already been checked for the nature-specific evolution criteria.
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case Toxtricity when enc.Species == (int)Toxtricity:
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{
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// The game enforces the Nature for Toxtricity encounters too!
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if (pkm.Form != EvolutionMethod.GetAmpLowKeyResult(pkm.Nature))
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return GetInvalid(LFormInvalidNature);
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break;
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}
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// Impossible Egg forms
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case Rotom when pkm.IsEgg && form != 0:
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case Furfrou when pkm.IsEgg && form != 0:
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return GetInvalid(LEggSpecies);
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// Party Only Forms
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case Shaymin:
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case Furfrou:
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case Hoopa:
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if (form != 0 && pkm.Box > -1 && pkm.Format <= 6) // has form but stored in box
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return GetInvalid(LFormParty);
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break;
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}
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var format = pkm.Format;
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if (FormInfo.IsBattleOnlyForm(species, form, format))
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return GetInvalid(LFormBattle);
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if (form == 0)
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return VALID;
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// everything below here is not Form 0, so it has a form.
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if (format >= 7 && Info.Generation < 7)
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{
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if (species == 25 || Legal.AlolanOriginForms.Contains(species) || Legal.AlolanVariantEvolutions12.Contains(enc.Species))
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return GetInvalid(LFormInvalidGame);
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}
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if (format >= 8 && Info.Generation < 8)
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{
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var orig = enc.Species;
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if (Legal.GalarOriginForms.Contains(species) || Legal.GalarVariantFormEvolutions.Contains(orig))
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{
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if (species == (int)Meowth && enc.Form != 2)
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{
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// We're okay here. There's also Alolan Meowth...
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}
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else if (((Species)orig is MrMime or MimeJr) && pkm.CurrentLevel > enc.LevelMin && Info.Generation >= 4)
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{
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// We're okay with a Mime Jr. that has evolved via level up.
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}
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else if (enc.Version != GameVersion.GO)
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{
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return GetInvalid(LFormInvalidGame);
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}
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}
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}
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return VALID;
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}
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private static readonly ushort[] Arceus_PlateIDs = { 303, 306, 304, 305, 309, 308, 310, 313, 298, 299, 301, 300, 307, 302, 311, 312, 644 };
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private static readonly ushort[] Arceus_ZCrystal = { 782, 785, 783, 784, 788, 787, 789, 792, 777, 778, 780, 779, 786, 781, 790, 791, 793 };
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public static int GetArceusFormFromHeldItem(int item, int format)
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{
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if (item is >= 777 and <= 793)
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return Array.IndexOf(Arceus_ZCrystal, (ushort)item) + 1;
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int form = 0;
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if (item is >= 298 and <= 313 or 644)
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form = Array.IndexOf(Arceus_PlateIDs, (ushort)item) + 1;
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if (format == 4 && form >= 9)
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return form + 1; // ??? type Form shifts everything by 1
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return form;
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}
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public static int GetSilvallyFormFromHeldItem(int item)
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{
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if (904 <= item && item <= 920)
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return item - 903;
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return 0;
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}
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public static int GetGenesectFormFromHeldItem(int item)
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{
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if (116 <= item && item <= 119)
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return item - 115;
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return 0;
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}
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private CheckResult VerifyFormArgument(LegalityAnalysis data, IFormArgument f)
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{
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var pkm = data.pkm;
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var enc = data.EncounterMatch;
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var arg = f.FormArgument;
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var unusedMask = pkm.Format == 6 ? 0xFFFF_FF00 : 0xFF00_0000;
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if ((arg & unusedMask) != 0)
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return GetInvalid(LFormArgumentHigh);
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return (Species)pkm.Species switch
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{
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// Transfer Edge Cases -- Bank wipes the form but keeps old FormArgument value.
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Furfrou when pkm.Format == 7 && pkm.Form == 0 &&
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((enc.Generation == 6 && f.FormArgument <= byte.MaxValue) || IsFormArgumentDayCounterValid(f, 5, true))
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=> GetValid(LFormArgumentValid),
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Furfrou when pkm.Form != 0 => !IsFormArgumentDayCounterValid(f, 5, true) ? GetInvalid(LFormArgumentInvalid) :GetValid(LFormArgumentValid),
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Hoopa when pkm.Form == 1 => !IsFormArgumentDayCounterValid(f, 3) ? GetInvalid(LFormArgumentInvalid) : GetValid(LFormArgumentValid),
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Yamask when pkm.Form == 1 => arg switch
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{
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not 0 when pkm.IsEgg => GetInvalid(LFormArgumentNotAllowed),
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> 9_999 => GetInvalid(LFormArgumentHigh),
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_ => GetValid(LFormArgumentValid)
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},
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Runerigus when enc.Species == (int)Runerigus => arg switch
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{
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not 0 => GetInvalid(LFormArgumentNotAllowed),
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_ => GetValid(LFormArgumentValid)
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},
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Runerigus => arg switch // From Yamask-1
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{
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< 49 => GetInvalid(LFormArgumentLow),
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> 9_999 => GetInvalid(LFormArgumentHigh),
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_ => GetValid(LFormArgumentValid)
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},
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Alcremie when enc.Species == (int)Alcremie => arg switch
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{
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not 0 => GetInvalid(LFormArgumentNotAllowed),
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_ => GetValid(LFormArgumentValid)
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},
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Alcremie => arg switch // From Milcery
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{
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> (uint) AlcremieDecoration.Ribbon => GetInvalid(LFormArgumentHigh),
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_ => GetValid(LFormArgumentValid)
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},
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_ => VerifyFormArgumentNone(pkm, f),
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};
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}
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private CheckResult VerifyFormArgumentNone(PKM pkm, IFormArgument f)
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{
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if (pkm is not PK6 pk6)
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{
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if (f.FormArgument != 0)
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{
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if (pkm.Species == (int)Furfrou && pkm.Form == 0 && (f.FormArgument & ~0xFF_00_00u) == 0)
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return GetValid(LFormArgumentValid);
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return GetInvalid(LFormArgumentNotAllowed);
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}
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return GetValid(LFormArgumentValid);
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}
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if (f.FormArgument != 0)
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{
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if (pkm.Species == (int)Furfrou && pkm.Form == 0 && (f.FormArgument & ~0xFFu) == 0)
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return GetValid(LFormArgumentValid);
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return GetInvalid(LFormArgumentNotAllowed);
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}
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// Stored separately from main form argument value
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if (pk6.FormArgumentRemain != 0)
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return GetInvalid(LFormArgumentNotAllowed);
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if (pk6.FormArgumentElapsed != 0)
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return GetInvalid(LFormArgumentNotAllowed);
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return GetValid(LFormArgumentValid);
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}
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private static bool IsFormArgumentDayCounterValid(IFormArgument f, uint maxSeed, bool canRefresh = false)
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{
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var remain = f.FormArgumentRemain;
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var elapsed = f.FormArgumentElapsed;
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var maxElapsed = f.FormArgumentMaximum;
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if (canRefresh)
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{
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if (maxElapsed < elapsed)
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return false;
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if (remain + elapsed < maxSeed)
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return false;
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}
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else
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{
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if (maxElapsed != 0)
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return false;
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if (remain + elapsed != maxSeed)
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return false;
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}
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if (remain > maxSeed)
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return false;
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return remain != 0;
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}
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}
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}
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