PKHeX/PKHeX.Core/Legality/Core.cs
Kurt 5bcccc6d92
HOME 2.0.0: Handle conversion behavior & restrictions (#3506)
* Revises legality checks to account for traveling between the three game islands (PLA/BDSP/SWSH)
* Adds conversion mechanisms between the three formats, as well as flexible conversion options to backfill missing data (thanks GameFreak/ILCA for opting for lossy conversion instead of updating the games).
* Adds API abstractions for HOME data storage format (EKH/PKH format 1, aka EH1/PH1).
* Revises some APIs for better usage:
  - `PKM` now exposes a `Context` to indicate the isolation context for legality purposes.
  - Some method signatures have changed to accept `Context` or `GameVersion` instead of a vague `int` for Generation.
  - Evolution History is now tracked in the Legality parse for specific contexts, rather than only per generation.
2022-05-30 21:43:52 -07:00

331 lines
14 KiB
C#

using System;
using System.Collections.Generic;
using static PKHeX.Core.BinLinkerAccessor;
namespace PKHeX.Core
{
public static partial class Legal
{
// Gen 1
internal static readonly Learnset[] LevelUpRB = LearnsetReader.GetArray(Util.GetBinaryResource("lvlmove_rb.pkl"), MaxSpeciesID_1);
internal static readonly Learnset[] LevelUpY = LearnsetReader.GetArray(Util.GetBinaryResource("lvlmove_y.pkl"), MaxSpeciesID_1);
// Gen 2
internal static readonly EggMoves2[] EggMovesGS = EggMoves2.GetArray(Util.GetBinaryResource("eggmove_gs.pkl"), MaxSpeciesID_2);
internal static readonly Learnset[] LevelUpGS = LearnsetReader.GetArray(Util.GetBinaryResource("lvlmove_gs.pkl"), MaxSpeciesID_2);
internal static readonly EggMoves2[] EggMovesC = EggMoves2.GetArray(Util.GetBinaryResource("eggmove_c.pkl"), MaxSpeciesID_2);
internal static readonly Learnset[] LevelUpC = LearnsetReader.GetArray(Util.GetBinaryResource("lvlmove_c.pkl"), MaxSpeciesID_2);
// Gen 3
internal static readonly Learnset[] LevelUpE = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_e.pkl"), "em"));
internal static readonly Learnset[] LevelUpRS = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_rs.pkl"), "rs"));
internal static readonly Learnset[] LevelUpFR = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_fr.pkl"), "fr"));
internal static readonly Learnset[] LevelUpLG = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_lg.pkl"), "lg"));
internal static readonly EggMoves6[] EggMovesRS = EggMoves6.GetArray(Get(Util.GetBinaryResource("eggmove_rs.pkl"), "rs"));
// Gen 4
internal static readonly Learnset[] LevelUpDP = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_dp.pkl"), "dp"));
internal static readonly Learnset[] LevelUpPt = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_pt.pkl"), "pt"));
internal static readonly Learnset[] LevelUpHGSS = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_hgss.pkl"), "hs"));
internal static readonly EggMoves6[] EggMovesDPPt = EggMoves6.GetArray(Get(Util.GetBinaryResource("eggmove_dppt.pkl"), "dp"));
internal static readonly EggMoves6[] EggMovesHGSS = EggMoves6.GetArray(Get(Util.GetBinaryResource("eggmove_hgss.pkl"), "hs"));
// Gen 5
internal static readonly Learnset[] LevelUpBW = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_bw.pkl"), "51"));
internal static readonly Learnset[] LevelUpB2W2 = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_b2w2.pkl"), "52"));
internal static readonly EggMoves6[] EggMovesBW = EggMoves6.GetArray(Get(Util.GetBinaryResource("eggmove_bw.pkl"), "bw"));
// Gen 6
internal static readonly EggMoves6[] EggMovesXY = EggMoves6.GetArray(Get(Util.GetBinaryResource("eggmove_xy.pkl"), "xy"));
internal static readonly Learnset[] LevelUpXY = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_xy.pkl"), "xy"));
internal static readonly EggMoves6[] EggMovesAO = EggMoves6.GetArray(Get(Util.GetBinaryResource("eggmove_ao.pkl"), "ao"));
internal static readonly Learnset[] LevelUpAO = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_ao.pkl"), "ao"));
// Gen 7
internal static readonly EggMoves7[] EggMovesSM = EggMoves7.GetArray(Get(Util.GetBinaryResource("eggmove_sm.pkl"), "sm"));
internal static readonly Learnset[] LevelUpSM = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_sm.pkl"), "sm"));
internal static readonly EggMoves7[] EggMovesUSUM = EggMoves7.GetArray(Get(Util.GetBinaryResource("eggmove_uu.pkl"), "uu"));
internal static readonly Learnset[] LevelUpUSUM = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_uu.pkl"), "uu"));
internal static readonly Learnset[] LevelUpGG = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_gg.pkl"), "gg"));
// Gen 8
internal static readonly EggMoves7[] EggMovesSWSH = EggMoves7.GetArray(Get(Util.GetBinaryResource("eggmove_swsh.pkl"), "ss"));
internal static readonly Learnset[] LevelUpSWSH = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_swsh.pkl"), "ss"));
internal static readonly EggMoves6[] EggMovesBDSP = EggMoves6.GetArray(Get(Util.GetBinaryResource("eggmove_bdsp.pkl"), "bs"));
internal static readonly Learnset[] LevelUpBDSP = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_bdsp.pkl"), "bs"));
internal static readonly Learnset[] LevelUpLA = LearnsetReader.GetArray(Get(Util.GetBinaryResource("lvlmove_la.pkl"), "la"));
internal static readonly Learnset[] MasteryLA = LearnsetReader.GetArray(Get(Util.GetBinaryResource("mastery_la.pkl"), "la"));
public static IReadOnlyList<byte> GetPPTable(PKM pkm, int format) => format switch
{
7 when pkm is PB7 => MovePP_GG,
8 when pkm is PA8 => MovePP_LA,
_ => GetPPTable(format),
};
public static IReadOnlyList<byte> GetPPTable(int format) => format switch
{
1 => MovePP_RBY,
2 => MovePP_GSC,
3 => MovePP_RS,
4 => MovePP_DP,
5 => MovePP_BW,
6 => MovePP_XY,
7 => MovePP_SM,
8 => MovePP_SWSH,
_ => Array.Empty<byte>(),
};
public static ICollection<int> GetDummiedMovesHashSet(PKM pkm) => pkm switch
{
PK8 => DummiedMoves_SWSH,
PB8 => DummiedMoves_BDSP,
PA8 => DummiedMoves_LA,
_ => Array.Empty<int>(),
};
internal static int GetMaxSpeciesOrigin(PKM pkm)
{
if (pkm.Format == 1)
return GetMaxSpeciesOrigin(1);
if (pkm.Format == 2 || pkm.VC)
return GetMaxSpeciesOrigin(2);
return GetMaxSpeciesOrigin(pkm.Generation);
}
internal static int GetMaxSpeciesOrigin(int generation, GameVersion version) => generation switch
{
1 => MaxSpeciesID_1,
2 => MaxSpeciesID_2,
3 => MaxSpeciesID_3,
4 => MaxSpeciesID_4,
5 => MaxSpeciesID_5,
6 => MaxSpeciesID_6,
7 when GameVersion.GG.Contains(version) => MaxSpeciesID_7b,
7 when GameVersion.USUM.Contains(version) => MaxSpeciesID_7_USUM,
7 => MaxSpeciesID_7,
8 when version is GameVersion.PLA => MaxSpeciesID_8a,
8 when GameVersion.BDSP.Contains(version) => MaxSpeciesID_8b,
8 => MaxSpeciesID_8_R2,
_ => -1,
};
internal static int GetMaxSpeciesOrigin(EntityContext context) => context switch
{
EntityContext.Gen1 => MaxSpeciesID_1,
EntityContext.Gen2 => MaxSpeciesID_2,
EntityContext.Gen3 => MaxSpeciesID_3,
EntityContext.Gen4 => MaxSpeciesID_4,
EntityContext.Gen5 => MaxSpeciesID_5,
EntityContext.Gen6 => MaxSpeciesID_6,
EntityContext.Gen7 => MaxSpeciesID_7_USUM,
EntityContext.Gen8 => MaxSpeciesID_8_R2,
EntityContext.Gen7b => MaxSpeciesID_7b,
EntityContext.Gen8a => MaxSpeciesID_8a,
EntityContext.Gen8b => MaxSpeciesID_8b,
_ => -1,
};
internal static int GetMaxSpeciesOrigin(int generation) => generation switch
{
1 => MaxSpeciesID_1,
2 => MaxSpeciesID_2,
3 => MaxSpeciesID_3,
4 => MaxSpeciesID_4,
5 => MaxSpeciesID_5,
6 => MaxSpeciesID_6,
7 => MaxSpeciesID_7b,
8 => MaxSpeciesID_8a,
_ => -1,
};
internal static int GetDebutGeneration(int species) => species switch
{
<= MaxSpeciesID_1 => 1,
<= MaxSpeciesID_2 => 2,
<= MaxSpeciesID_3 => 3,
<= MaxSpeciesID_4 => 4,
<= MaxSpeciesID_5 => 5,
<= MaxSpeciesID_6 => 6,
<= MaxSpeciesID_7b => 7,
<= MaxSpeciesID_8a => 8,
_ => -1,
};
internal static int GetMaxLanguageID(int generation) => generation switch
{
1 => (int) LanguageID.Spanish, // 1-7 except 6
3 => (int) LanguageID.Spanish, // 1-7 except 6
2 => (int) LanguageID.Korean,
4 => (int) LanguageID.Korean,
5 => (int) LanguageID.Korean,
6 => (int) LanguageID.Korean,
7 => (int) LanguageID.ChineseT,
8 => (int) LanguageID.ChineseT,
_ => -1,
};
internal static int GetMaxMoveID(int generation) => generation switch
{
1 => MaxMoveID_1,
2 => MaxMoveID_2,
3 => MaxMoveID_3,
4 => MaxMoveID_4,
5 => MaxMoveID_5,
6 => MaxMoveID_6_AO,
7 => MaxMoveID_7b,
8 => MaxMoveID_8a,
_ => -1,
};
internal const GameVersion NONE = GameVersion.Invalid;
internal static readonly LearnVersion LearnNONE = new(-1);
internal static bool HasVisitedB2W2(this PKM pkm, int species) => pkm.InhabitedGeneration(5, species);
internal static bool HasVisitedORAS(this PKM pkm, int species) => pkm.InhabitedGeneration(6, species) && (pkm.AO || !pkm.IsUntraded);
internal static bool HasVisitedUSUM(this PKM pkm, int species) => pkm.InhabitedGeneration(7, species) && (pkm.USUM || !pkm.IsUntraded);
internal static bool HasVisitedSWSH(this PKM pkm, EvoCriteria[] evos)
{
if (pkm.SWSH)
return true;
if (pkm.IsUntraded)
return false;
if (pkm.BDSP && pkm.Species is (int)Species.Spinda or (int)Species.Nincada)
return false;
var pt = PersonalTable.SWSH;
foreach (var evo in evos)
{
if (pt.IsPresentInGame(evo.Species, evo.Form))
return true;
}
return false;
}
internal static bool HasVisitedBDSP(this PKM pkm, EvoCriteria[] evos)
{
if (pkm.BDSP)
return true;
if (pkm.IsUntraded)
return false;
if (pkm.Species is (int)Species.Spinda or (int)Species.Nincada)
return false;
var pt = PersonalTable.BDSP;
foreach (var evo in evos)
{
if (pt.IsPresentInGame(evo.Species, evo.Form))
return true;
}
return false;
}
internal static bool HasVisitedLA(this PKM pkm, EvoCriteria[] evos)
{
if (pkm.LA)
return true;
if (pkm.IsUntraded)
return false;
var pt = PersonalTable.LA;
foreach (var evo in evos)
{
if (pt.IsPresentInGame(evo.Species, evo.Form))
return true;
}
return false;
}
/// <summary>
/// Checks if the moveset is restricted to only a specific version.
/// </summary>
/// <param name="pkm">Entity to check</param>
internal static (bool IsRestricted, GameVersion Game) IsMovesetRestricted(this PKM pkm) => pkm switch
{
PB7 => (true, GameVersion.GP),
PA8 => (true, GameVersion.PLA),
PB8 => (true, GameVersion.BD),
PK8 when pkm.Version > (int)GameVersion.SH => (true, GameVersion.SH), // Permit past generation moves.
IBattleVersion { BattleVersion: not 0 } bv => (true, (GameVersion)bv.BattleVersion),
_ when pkm.IsUntraded => (true, (GameVersion)pkm.Version),
_ => (false, GameVersion.Any),
};
/// <summary>
/// Checks if the relearn moves should be wiped.
/// </summary>
/// <remarks>Already checked for generations &lt; 8.</remarks>
/// <param name="pkm">Entity to check</param>
internal static bool IsOriginalMovesetDeleted(this PKM pkm)
{
if (pkm is PA8 {LA: false} or PB8 {BDSP: false})
return true;
if (pkm.IsNative)
{
if (pkm is PK8 {LA: true} or PK8 {BDSP: true})
return true;
return false;
}
if (pkm is IBattleVersion { BattleVersion: not 0 })
return true;
return false;
}
/// <summary>
/// Indicates if PP Ups are available for use.
/// </summary>
/// <param name="pkm">Entity to check</param>
public static bool IsPPUpAvailable(PKM pkm)
{
return pkm is not PA8;
}
public static int GetMaxLengthOT(int generation, LanguageID language) => language switch
{
LanguageID.ChineseS or LanguageID.ChineseT => 6,
LanguageID.Japanese or LanguageID.Korean => generation >= 6 ? 6 : 5,
_ => generation >= 6 ? 12 : 7,
};
public static int GetMaxLengthNickname(int generation, LanguageID language) => language switch
{
LanguageID.ChineseS or LanguageID.ChineseT => 6,
LanguageID.Japanese or LanguageID.Korean => generation >= 6 ? 6 : 5,
_ => generation >= 6 ? 12 : 10,
};
public static bool GetIsFixedIVSequenceValidSkipRand(ReadOnlySpan<int> IVs, PKM pkm, int max = 31)
{
for (int i = 0; i < 6; i++)
{
if ((uint) IVs[i] > max) // random
continue;
if (IVs[i] != pkm.GetIV(i))
return false;
}
return true;
}
public static bool GetIsFixedIVSequenceValidNoRand(ReadOnlySpan<int> IVs, PKM pkm)
{
for (int i = 0; i < 6; i++)
{
if (IVs[i] != pkm.GetIV(i))
return false;
}
return true;
}
public static bool IsMetAsEgg(PKM pkm) => pkm switch
{
PA8 or PK8 => pkm.Egg_Location is not 0 || (pkm.BDSP && pkm.Egg_Day is not 0),
PB8 pb8 => pb8.Egg_Location is not Locations.Default8bNone,
_ => pkm.Egg_Location is not 0,
};
}
}