PKHeX/PKHeX.Core/Legality/Verifiers/GenderVerifier.cs
Kurt 3c232505e5
Refactoring: Narrow some value types (Species, Move, Form) (#3575)
In this pull request I've changed a ton of method signatures to reflect the more-narrow types of Species, Move# and Form; additionally, I've narrowed other large collections that stored lists of species / permitted values, and reworked them to be more performant with the latest API spaghetti that PKHeX provides. Roamer met locations, usually in a range of [max-min]<64, can be quickly checked using a bitflag operation on a UInt64. Other collections (like "Is this from Colosseum or XD") were eliminated -- shadow state is not transferred COLO<->XD, so having a Shadow ID or matching the met location from a gift/wild encounter is a sufficient check for "originated in XD".
2022-08-26 23:43:36 -07:00

86 lines
3 KiB
C#

using static PKHeX.Core.LegalityCheckStrings;
namespace PKHeX.Core;
/// <summary>
/// Verifies the <see cref="PKM.Gender"/>.
/// </summary>
public sealed class GenderVerifier : Verifier
{
protected override CheckIdentifier Identifier => CheckIdentifier.Gender;
public override void Verify(LegalityAnalysis data)
{
var pk = data.Entity;
var pi = pk.PersonalInfo;
if (pi.Genderless != (pk.Gender == 2))
{
// DP/HGSS shedinja glitch -- only generation 4 spawns
bool ignore = pk.Format == 4 && pk.Species == (int)Species.Shedinja && pk.Met_Level != pk.CurrentLevel;
if (!ignore)
data.AddLine(GetInvalid(LGenderInvalidNone));
return;
}
// Check for PID relationship to Gender & Nature if applicable
int gen = data.Info.Generation;
if (gen is 3 or 4 or 5)
{
// Gender-PID & Nature-PID relationship check
var result = IsValidGenderPID(data) ? GetValid(LPIDGenderMatch) : GetInvalid(LPIDGenderMismatch);
data.AddLine(result);
if (gen != 5)
VerifyNaturePID(data);
return;
}
// Check fixed gender cases
if ((pi.OnlyFemale && pk.Gender != 1) || (pi.OnlyMale && pk.Gender != 0))
data.AddLine(GetInvalid(LGenderInvalidNone));
}
private static void VerifyNaturePID(LegalityAnalysis data)
{
var pk = data.Entity;
var result = pk.EncryptionConstant % 25 == pk.Nature
? GetValid(LPIDNatureMatch, CheckIdentifier.Nature)
: GetInvalid(LPIDNatureMismatch, CheckIdentifier.Nature);
data.AddLine(result);
}
private static bool IsValidGenderPID(LegalityAnalysis data)
{
var pk = data.Entity;
bool genderValid = pk.IsGenderValid();
if (!genderValid)
return IsValidGenderMismatch(pk);
// check for mixed->fixed gender incompatibility by checking the gender of the original species
var original = data.EncounterMatch.Species;
if (Legal.FixedGenderFromBiGender.Contains(original))
return IsValidFixedGenderFromBiGender(pk, original);
return true;
}
private static bool IsValidFixedGenderFromBiGender(PKM pk, ushort original)
{
var current = pk.Gender;
if (current == 2) // shedinja, genderless
return true;
var gender = EntityGender.GetFromPID(original, pk.EncryptionConstant);
return gender == current;
}
private static bool IsValidGenderMismatch(PKM pk) => pk.Species switch
{
// Shedinja evolution gender glitch, should match original Gender
(int) Species.Shedinja when pk.Format == 4 => pk.Gender == EntityGender.GetFromPIDAndRatio(pk.EncryptionConstant, 0x7F), // 50M-50F
// Evolved from Azurill after transferring to keep gender
(int) Species.Marill or (int) Species.Azumarill when pk.Format >= 6 => pk.Gender == 1 && (pk.EncryptionConstant & 0xFF) > 0x3F,
_ => false,
};
}