PKHeX/PKHeX.Core/Legality/Verifiers/FormVerifier.cs
2018-07-01 19:17:37 -07:00

234 lines
9.8 KiB
C#

using System;
using System.Collections.Generic;
using static PKHeX.Core.LegalityCheckStrings;
namespace PKHeX.Core
{
/// <summary>
/// Verifies the <see cref="PKM.AltForm"/> value.
/// </summary>
public sealed class FormVerifier : Verifier
{
protected override CheckIdentifier Identifier => CheckIdentifier.Form;
public override void Verify(LegalityAnalysis data)
{
var pkm = data.pkm;
if (pkm.Format < 4)
return; // no forms exist
var result = VerifyForm(data);
data.AddLine(result);
}
private CheckResult VALID => GetValid(V318);
private CheckResult VerifyForm(LegalityAnalysis data)
{
var pkm = data.pkm;
var PersonalInfo = data.PersonalInfo;
int count = PersonalInfo.FormeCount;
if (count <= 1 && pkm.AltForm == 0)
return VALID; // no forms to check
var EncounterMatch = data.EncounterMatch;
var Info = data.Info;
if (!PersonalInfo.IsFormeWithinRange(pkm.AltForm) && !FormConverter.IsValidOutOfBoundsForme(pkm.Species, pkm.AltForm, Info.Generation))
return GetInvalid(string.Format(V304, count - 1, pkm.AltForm));
if (EncounterMatch is EncounterSlot w && w.Type == SlotType.FriendSafari)
VerifyFormFriendSafari(data);
else if (EncounterMatch is EncounterEgg)
{
if (FormConverter.IsTotemForm(pkm.Species, pkm.AltForm))
return GetInvalid(V317);
}
switch (pkm.Species)
{
case 25 when Info.Generation == 6: // Pikachu Cosplay
bool isStatic = EncounterMatch is EncounterStatic;
if (isStatic != (pkm.AltForm != 0))
return GetInvalid(isStatic ? V305 : V306);
break;
case 25 when Info.Generation == 7: // Pikachu Cap
bool IsValidPikachuCap()
{
switch (EncounterMatch)
{
default: return pkm.AltForm == 0;
case WC7 wc7: return wc7.Form == pkm.AltForm;
case EncounterStatic s: return s.Form == pkm.AltForm;
}
}
if (!IsValidPikachuCap())
{
bool gift = EncounterMatch is WC7 g && g.Form != pkm.AltForm;
var msg = gift ? V307 : V317;
return GetInvalid(msg);
}
break;
case 201 when Info.Generation == 2 && pkm.AltForm >= 26:
return GetInvalid(string.Format(V304, "Z", pkm.AltForm == 26 ? "!" : "?"));
case 487 when pkm.AltForm == 1 ^ pkm.HeldItem == 112: // Giratina, Origin form only with Griseous Orb
return GetInvalid(V308);
case 493: // Arceus
{
int form = GetArceusFormFromHeldItem(pkm.HeldItem, pkm.Format);
return form != pkm.AltForm ? GetInvalid(V308) : GetValid(V309);
}
case 647: // Keldeo
{
if (pkm.Gen5) // can mismatch in gen5 via BW tutor and transfer up
break;
int index = Array.IndexOf(pkm.Moves, 548); // Secret Sword
bool noSword = index < 0;
if (pkm.AltForm == 0 ^ noSword) // mismatch
Info.Moves[noSword ? 0 : index] = new CheckMoveResult(Info.Moves[noSword ? 0 : index], Severity.Invalid, V169, CheckIdentifier.Move);
break;
}
case 649: // Genesect
{
int form = GetGenesectFormFromHeldItem(pkm.HeldItem);
return form != pkm.AltForm ? GetInvalid(V308) : GetValid(V309);
}
case 658: // Greninja
if (pkm.AltForm > 1) // Ash Battle Bond active
return GetInvalid(V310);
if (pkm.AltForm != 0 && !(EncounterMatch is MysteryGift)) // Formes are not breedable, MysteryGift already checked
return GetInvalid(string.Format(V304, 0, pkm.AltForm));
break;
case 664: // Scatterbug
case 665: // Spewpa
if (pkm.AltForm > 17) // Fancy & Pokéball
return GetInvalid(V311);
if (!Legal.CheckVivillonPattern(pkm.AltForm, pkm.Country, pkm.Region))
data.AddLine(Get(V312, Severity.Fishy));
break;
case 666: // Vivillon
if (pkm.AltForm > 17) // Fancy & Pokéball
{
if (!(EncounterMatch is MysteryGift))
return GetInvalid(V312);
return GetValid(V313);
}
if (!Legal.CheckVivillonPattern(pkm.AltForm, pkm.Country, pkm.Region))
data.AddLine(Get(V312, Severity.Fishy));
break;
case 670 when pkm.AltForm == 5: // Floette Eternal Flower -- Never Released
if (!(EncounterMatch is MysteryGift))
return GetInvalid(V314);
return GetValid(V315);
case 678 when pkm.AltForm != pkm.Gender: // Meowstic
return GetInvalid(V203);
case 773: // Silvally
{
int form = GetSilvallyFormFromHeldItem(pkm.HeldItem);
return form != pkm.AltForm ? GetInvalid(V308) : GetValid(V309);
}
case 744 when Info.EncounterMatch.EggEncounter && pkm.AltForm == 1 && pkm.SM:
case 745 when Info.EncounterMatch.EggEncounter && pkm.AltForm == 2 && pkm.SM:
return GetInvalid(V317);
// Impossible Egg forms
case 479 when pkm.IsEgg && pkm.AltForm != 0: // Rotom
case 676 when pkm.IsEgg && pkm.AltForm != 0: // Furfrou
return GetInvalid(V50);
// Party Only Forms
case 492: // Shaymin
case 676: // Furfrou
case 720: // Hoopa
if (pkm.AltForm != 0 && pkm.Box > -1 && pkm.Format <= 6) // has form but stored in box
return GetInvalid(V316);
break;
// Battle only Forms with other legal forms allowed
case 718 when pkm.AltForm >= 4: // Zygarde Complete
case 774 when pkm.AltForm < 7: // Minior Shield
case 800 when pkm.AltForm == 3: // Ultra Necrozma
return GetInvalid(V310);
case 800 when pkm.AltForm < 3: // Necrozma Fused forms & default
case 778 when pkm.AltForm == 2: // Totem disguise Mimikyu
return VALID;
}
if (pkm.Format >= 7 && Info.Generation < 7 && pkm.AltForm != 0)
{
if (pkm.Species == 25 || Legal.AlolanOriginForms.Contains(pkm.Species) || Legal.AlolanVariantEvolutions12.Contains(data.EncounterOriginal.Species))
return GetInvalid(V317);
}
if (pkm.AltForm != 0 && BattleOnly.Contains(pkm.Species))
return GetInvalid(V310);
return VALID;
}
private static int GetArceusFormFromHeldItem(int item, int format)
{
if (777 <= item && item <= 793)
return Array.IndexOf(Legal.Arceus_ZCrystal, item) + 1;
int form = 0;
if ((298 <= item && item <= 313) || item == 644)
form = Array.IndexOf(Legal.Arceus_Plate, item) + 1;
if (format == 4 && form >= 9)
return form + 1; // ??? type Form shifts everything by 1
return form;
}
private static int GetSilvallyFormFromHeldItem(int item)
{
if ((904 <= item && item <= 920) || item == 644)
return item - 903;
return 0;
}
private static int GetGenesectFormFromHeldItem(int item)
{
if (116 <= item && item <= 119)
return item - 115;
return 0;
}
static FormVerifier()
{
BattleOnly = new HashSet<int>();
BattleOnly.UnionWith(Legal.BattleForms);
BattleOnly.UnionWith(Legal.BattleMegas);
BattleOnly.UnionWith(Legal.BattlePrimals);
}
private static readonly HashSet<int> BattleOnly;
private static readonly HashSet<int> SafariFloette = new HashSet<int> {0, 1, 3}; // 0/1/3 - RBY
private void VerifyFormFriendSafari(LegalityAnalysis data)
{
var pkm = data.pkm;
switch (pkm.Species)
{
case 670 when !SafariFloette.Contains(pkm.AltForm): // Floette
case 671 when !SafariFloette.Contains(pkm.AltForm): // Florges
data.AddLine(GetInvalid(V64));
break;
case 710 when pkm.AltForm != 0: // Pumpkaboo
case 711 when pkm.AltForm != 0: // Goregeist Average
data.AddLine(GetInvalid(V6));
break;
case 423 when pkm.AltForm != 0: // Gastrodon West
data.AddLine(GetInvalid(V64));
break;
case 586 when pkm.AltForm != 0: // Sawsbuck
data.AddLine(GetInvalid(V65));
break;
}
}
}
}