PKHeX/PKHeX.Core/PKM/PK9.cs

using System;
using System.Numerics;
using static System.Buffers.Binary.BinaryPrimitives;

namespace PKHeX.Core;

/// <summary> Generation 9 <see cref="PKM"/> format. </summary>
public sealed class PK9 : PKM, ISanityChecksum, ITeraType, ITechRecord, IObedienceLevel,
    IContestStats, IHyperTrain, IScaledSize, IScaledSize3, IFavorite, IHandlerLanguage, IFormArgument, IHomeTrack, IBattleVersion, ITrainerMemories,
    IRibbonIndex, IRibbonSetAffixed, IRibbonSetRibbons, IRibbonSetEvent3, IRibbonSetEvent4, IRibbonSetCommon3, IRibbonSetCommon4, IRibbonSetCommon6, IRibbonSetMemory6, IRibbonSetCommon7, IRibbonSetCommon8, IRibbonSetCommon9, IRibbonSetMarks, IRibbonSetMark8, IRibbonSetMark9
{
    public override ReadOnlySpan<ushort> ExtraBytes => new ushort[]
    {
        0x17,
        0x1A, 0x1B,
        0x23,
        0x33,
        0x3E, 0x3F,
        0x90, 0x91, 0x92, 0x93, // Status condition
        0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
        0xC5,
        0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
        0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
        0x115,
    };

    public override PersonalInfo9SV PersonalInfo => PersonalTable.SV.GetFormEntry(Species, Form);
    public IPermitRecord Permit => PersonalInfo;
    public override bool IsNative => SV;
    public override EntityContext Context => EntityContext.Gen9;

    public PK9() : base(PokeCrypto.SIZE_9PARTY)
    {
        // 00 would make it show Kalos Champion :)
        AffixedRibbon = -1;
        TeraTypeOverride = (MoveType)19;
    }

    public PK9(byte[] data) : base(DecryptParty(data)) { }
    public override PK9 Clone() => new((byte[])Data.Clone());

    private static byte[] DecryptParty(byte[] data)
    {
        PokeCrypto.DecryptIfEncrypted9(ref data);
        Array.Resize(ref data, PokeCrypto.SIZE_9PARTY);
        return data;
    }

    private ushort CalculateChecksum() => Checksums.Add16(Data.AsSpan()[8..PokeCrypto.SIZE_9STORED]);

    // Simple Generated Attributes
    public override int CurrentFriendship
    {
        get => CurrentHandler == 0 ? OT_Friendship : HT_Friendship;
        set { if (CurrentHandler == 0) OT_Friendship = value; else HT_Friendship = value; }
    }

    public override int SIZE_PARTY => PokeCrypto.SIZE_9PARTY;
    public override int SIZE_STORED => PokeCrypto.SIZE_9STORED;

    public override bool ChecksumValid => CalculateChecksum() == Checksum;
    public override void RefreshChecksum() => Checksum = CalculateChecksum();
    public override bool Valid { get => Sanity == 0 && ChecksumValid; set { if (!value) return; Sanity = 0; RefreshChecksum(); } }

    // Trash Bytes
    public override Span<byte> Nickname_Trash => Data.AsSpan(0x58, 26);
    public override Span<byte> HT_Trash => Data.AsSpan(0xA8, 26);
    public override Span<byte> OT_Trash => Data.AsSpan(0xF8, 26);

    // Maximums
    public override int MaxIV => 31;
    public override int MaxEV => EffortValues.Max252;
    public override int MaxStringLengthOT => 12;
    public override int MaxStringLengthNickname => 12;

    public override uint PSV => ((PID >> 16) ^ (PID & 0xFFFF)) >> 4;
    public override uint TSV => (uint)(TID16 ^ SID16) >> 4;
    public override bool IsUntraded => Data[0xA8] == 0 && Data[0xA8 + 1] == 0 && (IsUnhatchedEgg || Format == Generation); // immediately terminated HT_Name data (\0)
    public bool IsUnhatchedEgg => Version == 0 && IsEgg;

    // Complex Generated Attributes
    public override int Characteristic => EntityCharacteristic.GetCharacteristic(EncryptionConstant, IV32);

    // Methods
    protected override byte[] Encrypt()
    {
        RefreshChecksum();
        return PokeCrypto.EncryptArray9(Data);
    }

    public void FixRelearn()
    {
        while (true)
        {
            if (RelearnMove4 != 0 && RelearnMove3 == 0)
            {
                RelearnMove3 = RelearnMove4;
                RelearnMove4 = 0;
            }
            if (RelearnMove3 != 0 && RelearnMove2 == 0)
            {
                RelearnMove2 = RelearnMove3;
                RelearnMove3 = 0;
                continue;
            }
            if (RelearnMove2 != 0 && RelearnMove1 == 0)
            {
                RelearnMove1 = RelearnMove2;
                RelearnMove2 = 0;
                continue;
            }
            break;
        }
    }

    public override uint EncryptionConstant { get => ReadUInt32LittleEndian(Data.AsSpan(0x00)); set => WriteUInt32LittleEndian(Data.AsSpan(0x00), value); }
    public ushort Sanity { get => ReadUInt16LittleEndian(Data.AsSpan(0x04)); set => WriteUInt16LittleEndian(Data.AsSpan(0x04), value); }
    public ushort Checksum { get => ReadUInt16LittleEndian(Data.AsSpan(0x06)); set => WriteUInt16LittleEndian(Data.AsSpan(0x06), value); }

    // Structure
    #region Block A
    public ushort SpeciesInternal { get => ReadUInt16LittleEndian(Data.AsSpan(0x08)); set => WriteUInt16LittleEndian(Data.AsSpan(0x08), value); }
    public override ushort Species { get => SpeciesConverter.GetNational9(SpeciesInternal); set => SpeciesInternal = SpeciesConverter.GetInternal9(value); }
    public override int HeldItem { get => ReadUInt16LittleEndian(Data.AsSpan(0x0A)); set => WriteUInt16LittleEndian(Data.AsSpan(0x0A), (ushort)value); }
    public override uint ID32 { get => ReadUInt32LittleEndian(Data.AsSpan(0x0C)); set => WriteUInt32LittleEndian(Data.AsSpan(0x0C), value); }
    public override ushort TID16 { get => ReadUInt16LittleEndian(Data.AsSpan(0x0C)); set => WriteUInt16LittleEndian(Data.AsSpan(0x0C), value); }
    public override ushort SID16 { get => ReadUInt16LittleEndian(Data.AsSpan(0x0E)); set => WriteUInt16LittleEndian(Data.AsSpan(0x0E), value); }
    public override uint EXP { get => ReadUInt32LittleEndian(Data.AsSpan(0x10)); set => WriteUInt32LittleEndian(Data.AsSpan(0x10), value); }
    public override int Ability { get => ReadUInt16LittleEndian(Data.AsSpan(0x14)); set => WriteUInt16LittleEndian(Data.AsSpan(0x14), (ushort)value); }
    public override int AbilityNumber { get => Data[0x16] & 7; set => Data[0x16] = (byte)((Data[0x16] & ~7) | (value & 7)); }
    public bool IsFavorite { get => (Data[0x16] & 8) != 0; set => Data[0x16] = (byte)((Data[0x16] & ~8) | ((value ? 1 : 0) << 3)); } // unused, was in LGPE but not in SWSH
    // 0x17 alignment unused
    public override int MarkValue { get => ReadUInt16LittleEndian(Data.AsSpan(0x18)); set => WriteUInt16LittleEndian(Data.AsSpan(0x18), (ushort)value); }
    // 0x1A alignment unused
    // 0x1B alignment unused
    public override uint PID { get => ReadUInt32LittleEndian(Data.AsSpan(0x1C)); set => WriteUInt32LittleEndian(Data.AsSpan(0x1C), value); }
    public override int Nature { get => Data[0x20]; set => Data[0x20] = (byte)value; }
    public override int StatNature { get => Data[0x21]; set => Data[0x21] = (byte)value; }
    public override bool FatefulEncounter { get => (Data[0x22] & 1) == 1; set => Data[0x22] = (byte)((Data[0x22] & ~0x01) | (value ? 1 : 0)); }
    public override int Gender { get => (Data[0x22] >> 1) & 0x3; set => Data[0x22] = (byte)((Data[0x22] & 0xF9) | (value << 1)); }
    // 0x23 alignment unused
    public override byte Form { get => Data[0x24]; set => WriteUInt16LittleEndian(Data.AsSpan(0x24), value); }
    public override int EV_HP { get => Data[0x26]; set => Data[0x26] = (byte)value; }
    public override int EV_ATK { get => Data[0x27]; set => Data[0x27] = (byte)value; }
    public override int EV_DEF { get => Data[0x28]; set => Data[0x28] = (byte)value; }
    public override int EV_SPE { get => Data[0x29]; set => Data[0x29] = (byte)value; }
    public override int EV_SPA { get => Data[0x2A]; set => Data[0x2A] = (byte)value; }
    public override int EV_SPD { get => Data[0x2B]; set => Data[0x2B] = (byte)value; }
    public byte CNT_Cool { get => Data[0x2C]; set => Data[0x2C] = value; }
    public byte CNT_Beauty { get => Data[0x2D]; set => Data[0x2D] = value; }
    public byte CNT_Cute { get => Data[0x2E]; set => Data[0x2E] = value; }
    public byte CNT_Smart { get => Data[0x2F]; set => Data[0x2F] = value; }
    public byte CNT_Tough { get => Data[0x30]; set => Data[0x30] = value; }
    public byte CNT_Sheen { get => Data[0x31]; set => Data[0x31] = value; }
    private byte PKRS { get => Data[0x32]; set => Data[0x32] = value; }
    public override int PKRS_Days { get => PKRS & 0xF; set => PKRS = (byte)((PKRS & ~0xF) | value); }
    public override int PKRS_Strain { get => PKRS >> 4; set => PKRS = (byte)((PKRS & 0xF) | (value << 4)); }
    // 0x33 unused padding

    // ribbon u32
    public bool RibbonChampionKalos { get => FlagUtil.GetFlag(Data, 0x34, 0); set => FlagUtil.SetFlag(Data, 0x34, 0, value); }
    public bool RibbonChampionG3 { get => FlagUtil.GetFlag(Data, 0x34, 1); set => FlagUtil.SetFlag(Data, 0x34, 1, value); }
    public bool RibbonChampionSinnoh { get => FlagUtil.GetFlag(Data, 0x34, 2); set => FlagUtil.SetFlag(Data, 0x34, 2, value); }
    public bool RibbonBestFriends { get => FlagUtil.GetFlag(Data, 0x34, 3); set => FlagUtil.SetFlag(Data, 0x34, 3, value); }
    public bool RibbonTraining { get => FlagUtil.GetFlag(Data, 0x34, 4); set => FlagUtil.SetFlag(Data, 0x34, 4, value); }
    public bool RibbonBattlerSkillful { get => FlagUtil.GetFlag(Data, 0x34, 5); set => FlagUtil.SetFlag(Data, 0x34, 5, value); }
    public bool RibbonBattlerExpert { get => FlagUtil.GetFlag(Data, 0x34, 6); set => FlagUtil.SetFlag(Data, 0x34, 6, value); }
    public bool RibbonEffort { get => FlagUtil.GetFlag(Data, 0x34, 7); set => FlagUtil.SetFlag(Data, 0x34, 7, value); }

    public bool RibbonAlert { get => FlagUtil.GetFlag(Data, 0x35, 0); set => FlagUtil.SetFlag(Data, 0x35, 0, value); }
    public bool RibbonShock { get => FlagUtil.GetFlag(Data, 0x35, 1); set => FlagUtil.SetFlag(Data, 0x35, 1, value); }
    public bool RibbonDowncast { get => FlagUtil.GetFlag(Data, 0x35, 2); set => FlagUtil.SetFlag(Data, 0x35, 2, value); }
    public bool RibbonCareless { get => FlagUtil.GetFlag(Data, 0x35, 3); set => FlagUtil.SetFlag(Data, 0x35, 3, value); }
    public bool RibbonRelax { get => FlagUtil.GetFlag(Data, 0x35, 4); set => FlagUtil.SetFlag(Data, 0x35, 4, value); }
    public bool RibbonSnooze { get => FlagUtil.GetFlag(Data, 0x35, 5); set => FlagUtil.SetFlag(Data, 0x35, 5, value); }
    public bool RibbonSmile { get => FlagUtil.GetFlag(Data, 0x35, 6); set => FlagUtil.SetFlag(Data, 0x35, 6, value); }
    public bool RibbonGorgeous { get => FlagUtil.GetFlag(Data, 0x35, 7); set => FlagUtil.SetFlag(Data, 0x35, 7, value); }

    public bool RibbonRoyal { get => FlagUtil.GetFlag(Data, 0x36, 0); set => FlagUtil.SetFlag(Data, 0x36, 0, value); }
    public bool RibbonGorgeousRoyal { get => FlagUtil.GetFlag(Data, 0x36, 1); set => FlagUtil.SetFlag(Data, 0x36, 1, value); }
    public bool RibbonArtist { get => FlagUtil.GetFlag(Data, 0x36, 2); set => FlagUtil.SetFlag(Data, 0x36, 2, value); }
    public bool RibbonFootprint { get => FlagUtil.GetFlag(Data, 0x36, 3); set => FlagUtil.SetFlag(Data, 0x36, 3, value); }
    public bool RibbonRecord { get => FlagUtil.GetFlag(Data, 0x36, 4); set => FlagUtil.SetFlag(Data, 0x36, 4, value); }
    public bool RibbonLegend { get => FlagUtil.GetFlag(Data, 0x36, 5); set => FlagUtil.SetFlag(Data, 0x36, 5, value); }
    public bool RibbonCountry { get => FlagUtil.GetFlag(Data, 0x36, 6); set => FlagUtil.SetFlag(Data, 0x36, 6, value); }
    public bool RibbonNational { get => FlagUtil.GetFlag(Data, 0x36, 7); set => FlagUtil.SetFlag(Data, 0x36, 7, value); }

    public bool RibbonEarth { get => FlagUtil.GetFlag(Data, 0x37, 0); set => FlagUtil.SetFlag(Data, 0x37, 0, value); }
    public bool RibbonWorld { get => FlagUtil.GetFlag(Data, 0x37, 1); set => FlagUtil.SetFlag(Data, 0x37, 1, value); }
    public bool RibbonClassic { get => FlagUtil.GetFlag(Data, 0x37, 2); set => FlagUtil.SetFlag(Data, 0x37, 2, value); }
    public bool RibbonPremier { get => FlagUtil.GetFlag(Data, 0x37, 3); set => FlagUtil.SetFlag(Data, 0x37, 3, value); }
    public bool RibbonEvent { get => FlagUtil.GetFlag(Data, 0x37, 4); set => FlagUtil.SetFlag(Data, 0x37, 4, value); }
    public bool RibbonBirthday { get => FlagUtil.GetFlag(Data, 0x37, 5); set => FlagUtil.SetFlag(Data, 0x37, 5, value); }
    public bool RibbonSpecial { get => FlagUtil.GetFlag(Data, 0x37, 6); set => FlagUtil.SetFlag(Data, 0x37, 6, value); }
    public bool RibbonSouvenir { get => FlagUtil.GetFlag(Data, 0x37, 7); set => FlagUtil.SetFlag(Data, 0x37, 7, value); }

    // ribbon u32
    public bool RibbonWishing { get => FlagUtil.GetFlag(Data, 0x38, 0); set => FlagUtil.SetFlag(Data, 0x38, 0, value); }
    public bool RibbonChampionBattle { get => FlagUtil.GetFlag(Data, 0x38, 1); set => FlagUtil.SetFlag(Data, 0x38, 1, value); }
    public bool RibbonChampionRegional { get => FlagUtil.GetFlag(Data, 0x38, 2); set => FlagUtil.SetFlag(Data, 0x38, 2, value); }
    public bool RibbonChampionNational { get => FlagUtil.GetFlag(Data, 0x38, 3); set => FlagUtil.SetFlag(Data, 0x38, 3, value); }
    public bool RibbonChampionWorld { get => FlagUtil.GetFlag(Data, 0x38, 4); set => FlagUtil.SetFlag(Data, 0x38, 4, value); }
    public bool HasContestMemoryRibbon { get => FlagUtil.GetFlag(Data, 0x38, 5); set => FlagUtil.SetFlag(Data, 0x38, 5, value); }
    public bool HasBattleMemoryRibbon { get => FlagUtil.GetFlag(Data, 0x38, 6); set => FlagUtil.SetFlag(Data, 0x38, 6, value); }
    public bool RibbonChampionG6Hoenn { get => FlagUtil.GetFlag(Data, 0x38, 7); set => FlagUtil.SetFlag(Data, 0x38, 7, value); }

    public bool RibbonContestStar { get => FlagUtil.GetFlag(Data, 0x39, 0); set => FlagUtil.SetFlag(Data, 0x39, 0, value); }
    public bool RibbonMasterCoolness { get => FlagUtil.GetFlag(Data, 0x39, 1); set => FlagUtil.SetFlag(Data, 0x39, 1, value); }
    public bool RibbonMasterBeauty { get => FlagUtil.GetFlag(Data, 0x39, 2); set => FlagUtil.SetFlag(Data, 0x39, 2, value); }
    public bool RibbonMasterCuteness { get => FlagUtil.GetFlag(Data, 0x39, 3); set => FlagUtil.SetFlag(Data, 0x39, 3, value); }
    public bool RibbonMasterCleverness { get => FlagUtil.GetFlag(Data, 0x39, 4); set => FlagUtil.SetFlag(Data, 0x39, 4, value); }
    public bool RibbonMasterToughness { get => FlagUtil.GetFlag(Data, 0x39, 5); set => FlagUtil.SetFlag(Data, 0x39, 5, value); }
    public bool RibbonChampionAlola { get => FlagUtil.GetFlag(Data, 0x39, 6); set => FlagUtil.SetFlag(Data, 0x39, 6, value); }
    public bool RibbonBattleRoyale { get => FlagUtil.GetFlag(Data, 0x39, 7); set => FlagUtil.SetFlag(Data, 0x39, 7, value); }

    public bool RibbonBattleTreeGreat { get => FlagUtil.GetFlag(Data, 0x3A, 0); set => FlagUtil.SetFlag(Data, 0x3A, 0, value); }
    public bool RibbonBattleTreeMaster { get => FlagUtil.GetFlag(Data, 0x3A, 1); set => FlagUtil.SetFlag(Data, 0x3A, 1, value); }
    public bool RibbonChampionGalar { get => FlagUtil.GetFlag(Data, 0x3A, 2); set => FlagUtil.SetFlag(Data, 0x3A, 2, value); }
    public bool RibbonTowerMaster { get => FlagUtil.GetFlag(Data, 0x3A, 3); set => FlagUtil.SetFlag(Data, 0x3A, 3, value); }
    public bool RibbonMasterRank { get => FlagUtil.GetFlag(Data, 0x3A, 4); set => FlagUtil.SetFlag(Data, 0x3A, 4, value); }
    public bool RibbonMarkLunchtime { get => FlagUtil.GetFlag(Data, 0x3A, 5); set => FlagUtil.SetFlag(Data, 0x3A, 5, value); }
    public bool RibbonMarkSleepyTime { get => FlagUtil.GetFlag(Data, 0x3A, 6); set => FlagUtil.SetFlag(Data, 0x3A, 6, value); }
    public bool RibbonMarkDusk { get => FlagUtil.GetFlag(Data, 0x3A, 7); set => FlagUtil.SetFlag(Data, 0x3A, 7, value); }

    public bool RibbonMarkDawn { get => FlagUtil.GetFlag(Data, 0x3B, 0); set => FlagUtil.SetFlag(Data, 0x3B, 0, value); }
    public bool RibbonMarkCloudy { get => FlagUtil.GetFlag(Data, 0x3B, 1); set => FlagUtil.SetFlag(Data, 0x3B, 1, value); }
    public bool RibbonMarkRainy { get => FlagUtil.GetFlag(Data, 0x3B, 2); set => FlagUtil.SetFlag(Data, 0x3B, 2, value); }
    public bool RibbonMarkStormy { get => FlagUtil.GetFlag(Data, 0x3B, 3); set => FlagUtil.SetFlag(Data, 0x3B, 3, value); }
    public bool RibbonMarkSnowy { get => FlagUtil.GetFlag(Data, 0x3B, 4); set => FlagUtil.SetFlag(Data, 0x3B, 4, value); }
    public bool RibbonMarkBlizzard { get => FlagUtil.GetFlag(Data, 0x3B, 5); set => FlagUtil.SetFlag(Data, 0x3B, 5, value); }
    public bool RibbonMarkDry { get => FlagUtil.GetFlag(Data, 0x3B, 6); set => FlagUtil.SetFlag(Data, 0x3B, 6, value); }
    public bool RibbonMarkSandstorm { get => FlagUtil.GetFlag(Data, 0x3B, 7); set => FlagUtil.SetFlag(Data, 0x3B, 7, value); }
    public byte RibbonCountMemoryContest { get => Data[0x3C]; set => HasContestMemoryRibbon = (Data[0x3C] = value) != 0; }
    public byte RibbonCountMemoryBattle { get => Data[0x3D]; set => HasBattleMemoryRibbon = (Data[0x3D] = value) != 0; }
    // 0x3E padding
    // 0x3F padding

    // 0x40 Ribbon 1
    public bool RibbonMarkMisty { get => FlagUtil.GetFlag(Data, 0x40, 0); set => FlagUtil.SetFlag(Data, 0x40, 0, value); }
    public bool RibbonMarkDestiny { get => FlagUtil.GetFlag(Data, 0x40, 1); set => FlagUtil.SetFlag(Data, 0x40, 1, value); }
    public bool RibbonMarkFishing { get => FlagUtil.GetFlag(Data, 0x40, 2); set => FlagUtil.SetFlag(Data, 0x40, 2, value); }
    public bool RibbonMarkCurry { get => FlagUtil.GetFlag(Data, 0x40, 3); set => FlagUtil.SetFlag(Data, 0x40, 3, value); }
    public bool RibbonMarkUncommon { get => FlagUtil.GetFlag(Data, 0x40, 4); set => FlagUtil.SetFlag(Data, 0x40, 4, value); }
    public bool RibbonMarkRare { get => FlagUtil.GetFlag(Data, 0x40, 5); set => FlagUtil.SetFlag(Data, 0x40, 5, value); }
    public bool RibbonMarkRowdy { get => FlagUtil.GetFlag(Data, 0x40, 6); set => FlagUtil.SetFlag(Data, 0x40, 6, value); }
    public bool RibbonMarkAbsentMinded { get => FlagUtil.GetFlag(Data, 0x40, 7); set => FlagUtil.SetFlag(Data, 0x40, 7, value); }

    public bool RibbonMarkJittery { get => FlagUtil.GetFlag(Data, 0x41, 0); set => FlagUtil.SetFlag(Data, 0x41, 0, value); }
    public bool RibbonMarkExcited { get => FlagUtil.GetFlag(Data, 0x41, 1); set => FlagUtil.SetFlag(Data, 0x41, 1, value); }
    public bool RibbonMarkCharismatic { get => FlagUtil.GetFlag(Data, 0x41, 2); set => FlagUtil.SetFlag(Data, 0x41, 2, value); }
    public bool RibbonMarkCalmness { get => FlagUtil.GetFlag(Data, 0x41, 3); set => FlagUtil.SetFlag(Data, 0x41, 3, value); }
    public bool RibbonMarkIntense { get => FlagUtil.GetFlag(Data, 0x41, 4); set => FlagUtil.SetFlag(Data, 0x41, 4, value); }
    public bool RibbonMarkZonedOut { get => FlagUtil.GetFlag(Data, 0x41, 5); set => FlagUtil.SetFlag(Data, 0x41, 5, value); }
    public bool RibbonMarkJoyful { get => FlagUtil.GetFlag(Data, 0x41, 6); set => FlagUtil.SetFlag(Data, 0x41, 6, value); }
    public bool RibbonMarkAngry { get => FlagUtil.GetFlag(Data, 0x41, 7); set => FlagUtil.SetFlag(Data, 0x41, 7, value); }

    public bool RibbonMarkSmiley { get => FlagUtil.GetFlag(Data, 0x42, 0); set => FlagUtil.SetFlag(Data, 0x42, 0, value); }
    public bool RibbonMarkTeary { get => FlagUtil.GetFlag(Data, 0x42, 1); set => FlagUtil.SetFlag(Data, 0x42, 1, value); }
    public bool RibbonMarkUpbeat { get => FlagUtil.GetFlag(Data, 0x42, 2); set => FlagUtil.SetFlag(Data, 0x42, 2, value); }
    public bool RibbonMarkPeeved { get => FlagUtil.GetFlag(Data, 0x42, 3); set => FlagUtil.SetFlag(Data, 0x42, 3, value); }
    public bool RibbonMarkIntellectual { get => FlagUtil.GetFlag(Data, 0x42, 4); set => FlagUtil.SetFlag(Data, 0x42, 4, value); }
    public bool RibbonMarkFerocious { get => FlagUtil.GetFlag(Data, 0x42, 5); set => FlagUtil.SetFlag(Data, 0x42, 5, value); }
    public bool RibbonMarkCrafty { get => FlagUtil.GetFlag(Data, 0x42, 6); set => FlagUtil.SetFlag(Data, 0x42, 6, value); }
    public bool RibbonMarkScowling { get => FlagUtil.GetFlag(Data, 0x42, 7); set => FlagUtil.SetFlag(Data, 0x42, 7, value); }

    public bool RibbonMarkKindly { get => FlagUtil.GetFlag(Data, 0x43, 0); set => FlagUtil.SetFlag(Data, 0x43, 0, value); }
    public bool RibbonMarkFlustered { get => FlagUtil.GetFlag(Data, 0x43, 1); set => FlagUtil.SetFlag(Data, 0x43, 1, value); }
    public bool RibbonMarkPumpedUp { get => FlagUtil.GetFlag(Data, 0x43, 2); set => FlagUtil.SetFlag(Data, 0x43, 2, value); }
    public bool RibbonMarkZeroEnergy { get => FlagUtil.GetFlag(Data, 0x43, 3); set => FlagUtil.SetFlag(Data, 0x43, 3, value); }
    public bool RibbonMarkPrideful { get => FlagUtil.GetFlag(Data, 0x43, 4); set => FlagUtil.SetFlag(Data, 0x43, 4, value); }
    public bool RibbonMarkUnsure { get => FlagUtil.GetFlag(Data, 0x43, 5); set => FlagUtil.SetFlag(Data, 0x43, 5, value); }
    public bool RibbonMarkHumble { get => FlagUtil.GetFlag(Data, 0x43, 6); set => FlagUtil.SetFlag(Data, 0x43, 6, value); }
    public bool RibbonMarkThorny { get => FlagUtil.GetFlag(Data, 0x43, 7); set => FlagUtil.SetFlag(Data, 0x43, 7, value); }
    // 0x44 Ribbon 2

    public bool RibbonMarkVigor       { get => FlagUtil.GetFlag(Data, 0x44, 0); set => FlagUtil.SetFlag(Data, 0x44, 0, value); }
    public bool RibbonMarkSlump       { get => FlagUtil.GetFlag(Data, 0x44, 1); set => FlagUtil.SetFlag(Data, 0x44, 1, value); }
    public bool RibbonHisui           { get => FlagUtil.GetFlag(Data, 0x44, 2); set => FlagUtil.SetFlag(Data, 0x44, 2, value); }
    public bool RibbonTwinklingStar   { get => FlagUtil.GetFlag(Data, 0x44, 3); set => FlagUtil.SetFlag(Data, 0x44, 3, value); }
    public bool RibbonChampionPaldea  { get => FlagUtil.GetFlag(Data, 0x44, 4); set => FlagUtil.SetFlag(Data, 0x44, 4, value); }
    public bool RibbonMarkJumbo       { get => FlagUtil.GetFlag(Data, 0x44, 5); set => FlagUtil.SetFlag(Data, 0x44, 5, value); }
    public bool RibbonMarkMini        { get => FlagUtil.GetFlag(Data, 0x44, 6); set => FlagUtil.SetFlag(Data, 0x44, 6, value); }
    public bool RibbonMarkItemfinder  { get => FlagUtil.GetFlag(Data, 0x44, 7); set => FlagUtil.SetFlag(Data, 0x44, 7, value); }

    public bool RibbonMarkPartner     { get => FlagUtil.GetFlag(Data, 0x45, 0); set => FlagUtil.SetFlag(Data, 0x45, 0, value); }
    public bool RibbonMarkGourmand    { get => FlagUtil.GetFlag(Data, 0x45, 1); set => FlagUtil.SetFlag(Data, 0x45, 1, value); }
    public bool RibbonOnceInALifetime { get => FlagUtil.GetFlag(Data, 0x45, 2); set => FlagUtil.SetFlag(Data, 0x45, 2, value); }
    public bool RibbonMarkAlpha       { get => FlagUtil.GetFlag(Data, 0x45, 3); set => FlagUtil.SetFlag(Data, 0x45, 3, value); }
    public bool RibbonMarkMightiest   { get => FlagUtil.GetFlag(Data, 0x45, 4); set => FlagUtil.SetFlag(Data, 0x45, 4, value); }
    public bool RibbonMarkTitan       { get => FlagUtil.GetFlag(Data, 0x45, 5); set => FlagUtil.SetFlag(Data, 0x45, 5, value); }
    public bool RIB45_6 { get => FlagUtil.GetFlag(Data, 0x45, 6); set => FlagUtil.SetFlag(Data, 0x45, 6, value); }
    public bool RIB45_7 { get => FlagUtil.GetFlag(Data, 0x45, 7); set => FlagUtil.SetFlag(Data, 0x45, 7, value); }

    public bool RIB46_0 { get => FlagUtil.GetFlag(Data, 0x46, 0); set => FlagUtil.SetFlag(Data, 0x46, 0, value); }
    public bool RIB46_1 { get => FlagUtil.GetFlag(Data, 0x46, 1); set => FlagUtil.SetFlag(Data, 0x46, 1, value); }
    public bool RIB46_2 { get => FlagUtil.GetFlag(Data, 0x46, 2); set => FlagUtil.SetFlag(Data, 0x46, 2, value); }
    public bool RIB46_3 { get => FlagUtil.GetFlag(Data, 0x46, 3); set => FlagUtil.SetFlag(Data, 0x46, 3, value); }
    public bool RIB46_4 { get => FlagUtil.GetFlag(Data, 0x46, 4); set => FlagUtil.SetFlag(Data, 0x46, 4, value); }
    public bool RIB46_5 { get => FlagUtil.GetFlag(Data, 0x46, 5); set => FlagUtil.SetFlag(Data, 0x46, 5, value); }
    public bool RIB46_6 { get => FlagUtil.GetFlag(Data, 0x46, 6); set => FlagUtil.SetFlag(Data, 0x46, 6, value); }
    public bool RIB46_7 { get => FlagUtil.GetFlag(Data, 0x46, 7); set => FlagUtil.SetFlag(Data, 0x46, 7, value); }

    public bool RIB47_0 { get => FlagUtil.GetFlag(Data, 0x47, 0); set => FlagUtil.SetFlag(Data, 0x47, 0, value); }
    public bool RIB47_1 { get => FlagUtil.GetFlag(Data, 0x47, 1); set => FlagUtil.SetFlag(Data, 0x47, 1, value); }
    public bool RIB47_2 { get => FlagUtil.GetFlag(Data, 0x47, 2); set => FlagUtil.SetFlag(Data, 0x47, 2, value); }
    public bool RIB47_3 { get => FlagUtil.GetFlag(Data, 0x47, 3); set => FlagUtil.SetFlag(Data, 0x47, 3, value); }
    public bool RIB47_4 { get => FlagUtil.GetFlag(Data, 0x47, 4); set => FlagUtil.SetFlag(Data, 0x47, 4, value); }
    public bool RIB47_5 { get => FlagUtil.GetFlag(Data, 0x47, 5); set => FlagUtil.SetFlag(Data, 0x47, 5, value); }
    public bool RIB47_6 { get => FlagUtil.GetFlag(Data, 0x47, 6); set => FlagUtil.SetFlag(Data, 0x47, 6, value); }
    public bool RIB47_7 { get => FlagUtil.GetFlag(Data, 0x47, 7); set => FlagUtil.SetFlag(Data, 0x47, 7, value); }

    public int RibbonCount     => BitOperations.PopCount(ReadUInt64LittleEndian(Data.AsSpan(0x34)) & 0b00000000_00011111__11111111_11111111__11111111_11111111__11111111_11111111)
                                + BitOperations.PopCount(ReadUInt64LittleEndian(Data.AsSpan(0x40)) & 0b00000000_00000000__00000100_00011100__00000000_00000000__00000000_00000000);
    public int MarkCount       => BitOperations.PopCount(ReadUInt64LittleEndian(Data.AsSpan(0x34)) & 0b11111111_11100000__00000000_00000000__00000000_00000000__00000000_00000000)
                                + BitOperations.PopCount(ReadUInt64LittleEndian(Data.AsSpan(0x40)) & 0b00000000_00000000__00111011_11100011__11111111_11111111__11111111_11111111);
    public int RibbonMarkCount => BitOperations.PopCount(ReadUInt64LittleEndian(Data.AsSpan(0x34)) & 0b11111111_11111111__11111111_11111111__11111111_11111111__11111111_11111111)
                                + BitOperations.PopCount(ReadUInt64LittleEndian(Data.AsSpan(0x40)) & 0b00000000_00000000__00111111_11111111__11111111_11111111__11111111_11111111);

    public bool HasMarkEncounter8 => BitOperations.PopCount(ReadUInt64LittleEndian(Data.AsSpan(0x34)) & 0b11111111_11100000__00000000_00000000__00000000_00000000__00000000_00000000)
                                   + BitOperations.PopCount(ReadUInt64LittleEndian(Data.AsSpan(0x40)) & 0b00000000_00000000__00000000_00000011__11111111_11111111__11111111_11111111) != 0;
    public bool HasMarkEncounter9 => (Data[0x45] & 0b00111000) != 0;

    public byte HeightScalar { get => Data[0x48]; set => Data[0x48] = value; }
    public byte WeightScalar { get => Data[0x49]; set => Data[0x49] = value; }
    public byte Scale        { get => Data[0x4A]; set => Data[0x4A] = value; }

    // 0x4B-0x57 is DLC TM Record Flags, see TM flag handling below for details

    #endregion
    #region Block B
    public override string Nickname
    {
        get => StringConverter8.GetString(Nickname_Trash);
        set => StringConverter8.SetString(Nickname_Trash, value, 12, StringConverterOption.None);
    }

    // 2 bytes for \0, automatically handled above

    public override ushort Move1 { get => ReadUInt16LittleEndian(Data.AsSpan(0x72)); set => WriteUInt16LittleEndian(Data.AsSpan(0x72), value); }
    public override ushort Move2 { get => ReadUInt16LittleEndian(Data.AsSpan(0x74)); set => WriteUInt16LittleEndian(Data.AsSpan(0x74), value); }
    public override ushort Move3 { get => ReadUInt16LittleEndian(Data.AsSpan(0x76)); set => WriteUInt16LittleEndian(Data.AsSpan(0x76), value); }
    public override ushort Move4 { get => ReadUInt16LittleEndian(Data.AsSpan(0x78)); set => WriteUInt16LittleEndian(Data.AsSpan(0x78), value); }

    public override int Move1_PP { get => Data[0x7A]; set => Data[0x7A] = (byte)value; }
    public override int Move2_PP { get => Data[0x7B]; set => Data[0x7B] = (byte)value; }
    public override int Move3_PP { get => Data[0x7C]; set => Data[0x7C] = (byte)value; }
    public override int Move4_PP { get => Data[0x7D]; set => Data[0x7D] = (byte)value; }
    public override int Move1_PPUps { get => Data[0x7E]; set => Data[0x7E] = (byte)value; }
    public override int Move2_PPUps { get => Data[0x7F]; set => Data[0x7F] = (byte)value; }
    public override int Move3_PPUps { get => Data[0x80]; set => Data[0x80] = (byte)value; }
    public override int Move4_PPUps { get => Data[0x81]; set => Data[0x81] = (byte)value; }

    public override ushort RelearnMove1 { get => ReadUInt16LittleEndian(Data.AsSpan(0x82)); set => WriteUInt16LittleEndian(Data.AsSpan(0x82), value); }
    public override ushort RelearnMove2 { get => ReadUInt16LittleEndian(Data.AsSpan(0x84)); set => WriteUInt16LittleEndian(Data.AsSpan(0x84), value); }
    public override ushort RelearnMove3 { get => ReadUInt16LittleEndian(Data.AsSpan(0x86)); set => WriteUInt16LittleEndian(Data.AsSpan(0x86), value); }
    public override ushort RelearnMove4 { get => ReadUInt16LittleEndian(Data.AsSpan(0x88)); set => WriteUInt16LittleEndian(Data.AsSpan(0x88), value); }

    public override int Stat_HPCurrent { get => ReadUInt16LittleEndian(Data.AsSpan(0x8A)); set => WriteUInt16LittleEndian(Data.AsSpan(0x8A), (ushort)value); }

    private uint IV32 { get => ReadUInt32LittleEndian(Data.AsSpan(0x8C)); set => WriteUInt32LittleEndian(Data.AsSpan(0x8C), value); }
    public override int IV_HP { get => (int)(IV32 >> 00) & 0x1F; set => IV32 = (IV32 & ~(0x1Fu << 00)) | ((value > 31 ? 31u : (uint)value) << 00); }
    public override int IV_ATK { get => (int)(IV32 >> 05) & 0x1F; set => IV32 = (IV32 & ~(0x1Fu << 05)) | ((value > 31 ? 31u : (uint)value) << 05); }
    public override int IV_DEF { get => (int)(IV32 >> 10) & 0x1F; set => IV32 = (IV32 & ~(0x1Fu << 10)) | ((value > 31 ? 31u : (uint)value) << 10); }
    public override int IV_SPE { get => (int)(IV32 >> 15) & 0x1F; set => IV32 = (IV32 & ~(0x1Fu << 15)) | ((value > 31 ? 31u : (uint)value) << 15); }
    public override int IV_SPA { get => (int)(IV32 >> 20) & 0x1F; set => IV32 = (IV32 & ~(0x1Fu << 20)) | ((value > 31 ? 31u : (uint)value) << 20); }
    public override int IV_SPD { get => (int)(IV32 >> 25) & 0x1F; set => IV32 = (IV32 & ~(0x1Fu << 25)) | ((value > 31 ? 31u : (uint)value) << 25); }
    public override bool IsEgg { get => ((IV32 >> 30) & 1) == 1; set => IV32 = (IV32 & ~0x40000000u) | (value ? 0x40000000u : 0u); }
    public override bool IsNicknamed { get => ((IV32 >> 31) & 1) == 1; set => IV32 = (IV32 & 0x7FFFFFFFu) | (value ? 0x80000000u : 0u); }
    public override int Status_Condition { get => ReadInt32LittleEndian(Data.AsSpan(0x90)); set => WriteInt32LittleEndian(Data.AsSpan(0x90), value); }
    public MoveType TeraTypeOriginal { get => (MoveType)Data[0x94]; set => Data[0x94] = (byte)value; }
    public MoveType TeraTypeOverride { get => (MoveType)Data[0x95]; set => Data[0x95] = (byte)value; }
    public MoveType TeraType => TeraTypeUtil.GetTeraType((byte)TeraTypeOriginal, (byte)TeraTypeOverride);

    // 0x96-0xA7 unused

    #endregion
    #region Block C
    public override string HT_Name
    {
        get => StringConverter8.GetString(HT_Trash);
        set => StringConverter8.SetString(HT_Trash, value, 12, StringConverterOption.None);
    }

    public override int HT_Gender { get => Data[0xC2]; set => Data[0xC2] = (byte)value; }
    public byte HT_Language { get => Data[0xC3]; set => Data[0xC3] = value; }
    public override int CurrentHandler { get => Data[0xC4]; set => Data[0xC4] = (byte)value; }
    // 0xC5 unused (alignment)
    public int HT_TrainerID { get => ReadUInt16LittleEndian(Data.AsSpan(0xC6)); set => WriteUInt16LittleEndian(Data.AsSpan(0xC6), (ushort)value); } // unused?
    public override int HT_Friendship { get => Data[0xC8]; set => Data[0xC8] = (byte)value; }
    public byte HT_Intensity { get => Data[0xC9]; set => Data[0xC9] = value; }
    public byte HT_Memory { get => Data[0xCA]; set => Data[0xCA] = value; }
    public byte HT_Feeling { get => Data[0xCB]; set => Data[0xCB] = value; }
    public ushort HT_TextVar { get => ReadUInt16LittleEndian(Data.AsSpan(0xCC)); set => WriteUInt16LittleEndian(Data.AsSpan(0xCC), value); }
    public override int Version { get => Data[0xCE]; set => Data[0xCE] = (byte)value; }
    public byte BattleVersion { get => Data[0xCF]; set => Data[0xCF] = value; }
    public uint FormArgument { get => ReadUInt32LittleEndian(Data.AsSpan(0xD0)); set => WriteUInt32LittleEndian(Data.AsSpan(0xD0), value); }
    public byte FormArgumentRemain { get => (byte)FormArgument; set => FormArgument = (FormArgument & ~0xFFu) | value; }
    public byte FormArgumentElapsed { get => (byte)(FormArgument >> 8); set => FormArgument = (FormArgument & ~0xFF00u) | (uint)(value << 8); }
    public byte FormArgumentMaximum { get => (byte)(FormArgument >> 16); set => FormArgument = (FormArgument & ~0xFF0000u) | (uint)(value << 16); }
    public sbyte AffixedRibbon { get => (sbyte)Data[0xD4]; set => Data[0xD4] = (byte)value; } // selected ribbon
    public override int Language { get => Data[0xD5]; set => Data[0xD5] = (byte)value; }
    // 0xD6..0xF7 ??
    // remainder unused

    #endregion
    #region Block D
    public override string OT_Name
    {
        get => StringConverter8.GetString(OT_Trash);
        set => StringConverter8.SetString(OT_Trash, value, 12, StringConverterOption.None);
    }

    public override int OT_Friendship { get => Data[0x112]; set => Data[0x112] = (byte)value; }
    public byte OT_Intensity { get => Data[0x113]; set => Data[0x113] = value; }
    public byte OT_Memory { get => Data[0x114]; set => Data[0x114] = value; }
    // 0x115 unused align
    public ushort OT_TextVar { get => ReadUInt16LittleEndian(Data.AsSpan(0x116)); set => WriteUInt16LittleEndian(Data.AsSpan(0x116), value); }
    public byte OT_Feeling { get => Data[0x118]; set => Data[0x118] = value; }
    public override int Egg_Year { get => Data[0x119]; set => Data[0x119] = (byte)value; }
    public override int Egg_Month { get => Data[0x11A]; set => Data[0x11A] = (byte)value; }
    public override int Egg_Day { get => Data[0x11B]; set => Data[0x11B] = (byte)value; }
    public override int Met_Year { get => Data[0x11C]; set => Data[0x11C] = (byte)value; }
    public override int Met_Month { get => Data[0x11D]; set => Data[0x11D] = (byte)value; }
    public override int Met_Day { get => Data[0x11E]; set => Data[0x11E] = (byte)value; }
    public byte Obedience_Level { get => Data[0x11F]; set => Data[0x11F] = value; }
    public override int Egg_Location { get => ReadUInt16LittleEndian(Data.AsSpan(0x120)); set => WriteUInt16LittleEndian(Data.AsSpan(0x120), (ushort)value); }
    public override int Met_Location { get => ReadUInt16LittleEndian(Data.AsSpan(0x122)); set => WriteUInt16LittleEndian(Data.AsSpan(0x122), (ushort)value); }
    public override int Ball { get => Data[0x124]; set => Data[0x124] = (byte)value; }
    public override int Met_Level { get => Data[0x125] & ~0x80; set => Data[0x125] = (byte)((Data[0x125] & 0x80) | value); }
    public override int OT_Gender { get => Data[0x125] >> 7; set => Data[0x125] = (byte)((Data[0x125] & ~0x80) | (value << 7)); }
    public byte HyperTrainFlags { get => Data[0x126]; set => Data[0x126] = value; }
    public bool HT_HP { get => ((HyperTrainFlags >> 0) & 1) == 1; set => HyperTrainFlags = (byte)((HyperTrainFlags & ~(1 << 0)) | ((value ? 1 : 0) << 0)); }
    public bool HT_ATK { get => ((HyperTrainFlags >> 1) & 1) == 1; set => HyperTrainFlags = (byte)((HyperTrainFlags & ~(1 << 1)) | ((value ? 1 : 0) << 1)); }
    public bool HT_DEF { get => ((HyperTrainFlags >> 2) & 1) == 1; set => HyperTrainFlags = (byte)((HyperTrainFlags & ~(1 << 2)) | ((value ? 1 : 0) << 2)); }
    public bool HT_SPA { get => ((HyperTrainFlags >> 3) & 1) == 1; set => HyperTrainFlags = (byte)((HyperTrainFlags & ~(1 << 3)) | ((value ? 1 : 0) << 3)); }
    public bool HT_SPD { get => ((HyperTrainFlags >> 4) & 1) == 1; set => HyperTrainFlags = (byte)((HyperTrainFlags & ~(1 << 4)) | ((value ? 1 : 0) << 4)); }
    public bool HT_SPE { get => ((HyperTrainFlags >> 5) & 1) == 1; set => HyperTrainFlags = (byte)((HyperTrainFlags & ~(1 << 5)) | ((value ? 1 : 0) << 5)); }

    public ulong Tracker
    {
        get => ReadUInt64LittleEndian(Data.AsSpan(0x127));
        set => WriteUInt64LittleEndian(Data.AsSpan(0x127), value);
    }

    private const int RecordStartBase = 0x12F;
    internal const int COUNT_RECORD_BASE = 200; // Up to 200 TM flags, but not all are used.
    private const int RecordLengthBase = COUNT_RECORD_BASE / 8; // 0x19 bytes, 8 bits
    public Span<byte> RecordFlagsBase => Data.AsSpan(RecordStartBase, RecordLengthBase);

    private const int RecordStartDLC = 0x4B;
    internal const int COUNT_RECORD_DLC = 104; // 13 additional bytes allocated for DLC1/2 TM Flags
    private const int RecordLengthDLC = COUNT_RECORD_DLC / 8;
    public Span<byte> RecordFlagsDLC => Data.AsSpan(RecordStartDLC, RecordLengthDLC);

    public bool GetMoveRecordFlag(int index)
    {
        if ((uint)index >= COUNT_RECORD_BASE)
            return GetMoveRecordFlagDLC(index - COUNT_RECORD_BASE);
        int ofs = index >> 3;
        return FlagUtil.GetFlag(Data, RecordStartBase + ofs, index & 7);
    }

    private bool GetMoveRecordFlagDLC(int index)
    {
        if ((uint)index >= COUNT_RECORD_DLC)
            throw new ArgumentOutOfRangeException(nameof(index));
        int ofs = index >> 3;
        return FlagUtil.GetFlag(Data, RecordStartDLC + ofs, index & 7);
    }

    public void SetMoveRecordFlag(int index, bool value = true)
    {
        if ((uint)index >= COUNT_RECORD_BASE)
        {
            SetMoveRecordFlagDLC(value, index - COUNT_RECORD_BASE);
            return;
        }
        int ofs = index >> 3;
        FlagUtil.SetFlag(Data, RecordStartBase + ofs, index & 7, value);
    }

    private void SetMoveRecordFlagDLC(bool value, int index)
    {
        if ((uint)index >= COUNT_RECORD_DLC)
            throw new ArgumentOutOfRangeException(nameof(index));
        int ofs = index >> 3;
        FlagUtil.SetFlag(Data, RecordStartDLC + ofs, index & 7, value);
    }

    public bool GetMoveRecordFlagAny() => GetMoveRecordFlagAnyBase() || GetMoveRecordFlagAnyDLC();
    private bool GetMoveRecordFlagAnyBase() => RecordFlagsBase.IndexOfAnyExcept<byte>(0) >= 0;
    private bool GetMoveRecordFlagAnyDLC() => RecordFlagsDLC.IndexOfAnyExcept<byte>(0) >= 0;

    public void ClearMoveRecordFlags()
    {
        ClearMoveRecordFlagsBase();
        ClearMoveRecordFlagsDLC();
    }

    private void ClearMoveRecordFlagsBase() => RecordFlagsBase.Clear();
    private void ClearMoveRecordFlagsDLC() => RecordFlagsDLC.Clear();

    #endregion
    #region Battle Stats
    public override int Stat_Level { get => Data[0x148]; set => Data[0x148] = (byte)value; }
    // 0x149 unused alignment
    public override int Stat_HPMax { get => ReadUInt16LittleEndian(Data.AsSpan(0x14A)); set => WriteUInt16LittleEndian(Data.AsSpan(0x14A), (ushort)value); }
    public override int Stat_ATK { get => ReadUInt16LittleEndian(Data.AsSpan(0x14C)); set => WriteUInt16LittleEndian(Data.AsSpan(0x14C), (ushort)value); }
    public override int Stat_DEF { get => ReadUInt16LittleEndian(Data.AsSpan(0x14E)); set => WriteUInt16LittleEndian(Data.AsSpan(0x14E), (ushort)value); }
    public override int Stat_SPE { get => ReadUInt16LittleEndian(Data.AsSpan(0x150)); set => WriteUInt16LittleEndian(Data.AsSpan(0x150), (ushort)value); }
    public override int Stat_SPA { get => ReadUInt16LittleEndian(Data.AsSpan(0x152)); set => WriteUInt16LittleEndian(Data.AsSpan(0x152), (ushort)value); }
    public override int Stat_SPD { get => ReadUInt16LittleEndian(Data.AsSpan(0x154)); set => WriteUInt16LittleEndian(Data.AsSpan(0x154), (ushort)value); }
    #endregion

    public override int MarkingCount => 6;

    public override int GetMarking(int index)
    {
        if ((uint)index >= MarkingCount)
            throw new ArgumentOutOfRangeException(nameof(index));
        return (MarkValue >> (index * 2)) & 3;
    }

    public override void SetMarking(int index, int value)
    {
        if ((uint)index >= MarkingCount)
            throw new ArgumentOutOfRangeException(nameof(index));
        var shift = index * 2;
        MarkValue = (MarkValue & ~(0b11 << shift)) | ((value & 3) << shift);
    }

    public bool GetRibbon(int index) => FlagUtil.GetFlag(Data, GetRibbonByte(index), index & 7);
    public void SetRibbon(int index, bool value = true) => FlagUtil.SetFlag(Data, GetRibbonByte(index), index & 7, value);

    public int GetRibbonByte(int index)
    {
        if ((uint)index >= 128)
            throw new ArgumentOutOfRangeException(nameof(index));
        if (index < 64)
            return 0x34 + (index >> 3);
        index -= 64;
        return 0x40 + (index >> 3);
    }

    public void Trade(ITrainerInfo tr, int Day = 1, int Month = 1, int Year = 2015)
    {
        if (IsEgg)
        {
            if (Egg_Location == 60005 && tr.Gender == OT_Gender && tr.Language == Language && tr.OT == OT_Name)
                return; // Jacq gift, don't change.

            // Apply link trade data, only if it left the OT (ignore if dumped & imported, or cloned, etc)
            // If not matching the trainer details, mark as a traded egg.
            if (!IsTradedEgg && tr.Gender == OT_Gender && tr.Language == Language && tr.OT == OT_Name)
            {
                OT_Trash.Clear();
                Nickname_Trash.Clear();
                HT_Trash.Clear();
                CurrentHandler = 0;
                Language = tr.Language;
                Nickname = SpeciesName.GetEggName(tr.Language, 9);
                OT_Name = tr.OT;
                HT_Language = 0;
            }
            else
            {
                HT_Name = tr.OT;
                HT_Gender = tr.Gender;
                HT_Language = (byte)tr.Language;
                SetLinkTradeEgg(Day, Month, Year, Locations.LinkTrade6);
                CurrentHandler = 1;
            }
            return;
        }

        // Process to the HT if the OT of the Pokémon does not match the SAV's OT info.
        if (!TradeOT(tr))
            TradeHT(tr);
    }

    public void FixMemories()
    {
        if (IsEgg) // No memories if is egg.
        {
            // HT_Language is set for eggs
            HT_Friendship = HT_TextVar = HT_Memory = HT_Intensity = HT_Feeling = 0;
            /* OT_Friendship */
            OT_TextVar = OT_Memory = OT_Intensity = OT_Feeling = 0;
            return;
        }

        if (IsUntraded)
        {
            // HT_Language is set for gifts
            // Skip clearing that.
            HT_Friendship = HT_TextVar = HT_Memory = HT_Intensity = HT_Feeling = 0;
        }

        int gen = Generation;
        if (gen < 6)
            OT_TextVar = OT_Memory = OT_Intensity = OT_Feeling = 0;
    }

    private bool TradeOT(ITrainerInfo tr)
    {
        // Check to see if the OT matches the SAV's OT info.
        if (!(tr.ID32 == ID32 && tr.Gender == OT_Gender && tr.OT == OT_Name))
            return false;

        CurrentHandler = 0;
        return true;
    }

    private void TradeHT(ITrainerInfo tr)
    {
        if (HT_Name != tr.OT)
        {
            HT_Friendship = 50;
            HT_Name = tr.OT;
        }
        CurrentHandler = 1;
        HT_Gender = tr.Gender;
        if (HT_Language == 0)
            this.ClearMemoriesHT();
        HT_Language = (byte)tr.Language;
    }

    // Maximums
    public override ushort MaxMoveID => Legal.MaxMoveID_9;
    public override ushort MaxSpeciesID => Legal.MaxSpeciesID_9;
    public override int MaxAbilityID => Legal.MaxAbilityID_9;
    public override int MaxItemID => Legal.MaxItemID_9;
    public override int MaxBallID => Legal.MaxBallID_9;
    public override int MaxGameID => Legal.MaxGameID_HOME;
}