PKHeX/PKHeX.Core/Legality/Verifiers/MemoryVerifier.cs

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C#
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using System;
using System.Collections.Generic;
using System.Linq;
using static PKHeX.Core.LegalityCheckStrings;
using static PKHeX.Core.Encounters6;
using static PKHeX.Core.Encounters8;
namespace PKHeX.Core
{
/// <summary>
/// Verifies the <see cref="IMemoryOT.OT_Memory"/>, <see cref="IMemoryHT.HT_Memory"/>, and associated values.
/// </summary>
public sealed class MemoryVerifier : Verifier
{
protected override CheckIdentifier Identifier => CheckIdentifier.Memory;
public override void Verify(LegalityAnalysis data)
{
VerifyOTMemory(data);
VerifyHTMemory(data);
}
private CheckResult VerifyCommonMemory(PKM pkm, int handler, int gen, LegalInfo info)
{
var memory = MemoryVariableSet.Read((ITrainerMemories)pkm, handler);
// Actionable HM moves
int matchingMoveMemory = Array.IndexOf(Memories.MoveSpecificMemories[0], memory.MemoryID);
if (matchingMoveMemory != -1)
{
// Gen8 has no HMs, so this memory can never exist.
if (gen != 6 || (pkm.Species != (int)Species.Smeargle && !Legal.GetCanLearnMachineMove(pkm, Memories.MoveSpecificMemories[1][matchingMoveMemory], 6)))
return GetInvalid(string.Format(LMemoryArgBadMove, memory.Handler));
}
switch (memory.MemoryID)
{
// {0} saw {2} carrying {1} on its back. {4} that {3}.
case 21 when gen != 6 || !Legal.GetCanLearnMachineMove(new PK6 {Species = memory.Variable, EXP = Experience.GetEXP(100, PersonalTable.XY.GetFormIndex(memory.Variable, 0))}, 19, 6):
return GetInvalid(string.Format(LMemoryArgBadMove, memory.Handler));
case 16 or 48 when !CanKnowMove(pkm, memory, gen, info, memory.MemoryID == 16):
return GetInvalid(string.Format(LMemoryArgBadMove, memory.Handler));
case 49 when memory.Variable == 0 || !Legal.GetCanRelearnMove(pkm, memory.Variable, gen, info.EvoChainsAllGens[gen]):
return GetInvalid(string.Format(LMemoryArgBadMove, memory.Handler));
// Dynamaxing
// {0} battled at {1}s side against {2} that Dynamaxed. {4} that {3}.
case 71 when !GetCanBeCaptured(memory.Variable, 8, handler == 0 ? (GameVersion)pkm.Version : GameVersion.Any):
// {0} battled {2} and Dynamaxed upon {1}s instruction. {4} that {3}.
case 72 when !((PersonalInfoSWSH)PersonalTable.SWSH[memory.Variable]).IsPresentInGame:
return GetInvalid(string.Format(LMemoryArgBadSpecies, handler == 0 ? L_XOT : L_XHT));
// Move
// {0} studied about how to use {2} in a Box, thinking about {1}. {4} that {3}.
// {0} practiced its cool pose for the move {2} in a Box, wishing to be praised by {1}. {4} that {3}.
case 80 or 81 when !CanKnowMove(pkm, memory, gen, info):
return Get(string.Format(LMemoryArgBadMove, memory.Handler), gen == 8 ? Severity.Fishy : Severity.Invalid);
// Species
// {0} had a great chat about {1} with the {2} that it was in a Box with. {4} that {3}.
// {0} became good friends with the {2} in a Box, practiced moves with it, and talked about the day that {0} would be praised by {1}. {4} that {3}.
// {0} got in a fight with the {2} that it was in a Box with about {1}. {4} that {3}.
case 82 or 83 or 87 when !((PersonalInfoSWSH)PersonalTable.SWSH[memory.Variable]).IsPresentInGame:
return GetInvalid(string.Format(LMemoryArgBadSpecies, handler == 0 ? L_XOT : L_XHT));
// Item
case 84 when !Legal.HeldItems_SWSH.Contains((ushort)memory.Variable): // {0} was worried if {1} was looking for the {2} that it was holding in a Box. {4} that {3}.
return GetInvalid(string.Format(LMemoryArgBadItem, memory.Handler));
}
if (gen == 6 && !Memories.CanHaveIntensity(memory.MemoryID, memory.Intensity))
{
if (pkm.Gen6 || (pkm.Gen7 && memory.MemoryID != 0)) // todo: memory intensity checks for gen8
return GetInvalid(string.Format(LMemoryIndexIntensityMin, memory.Handler, Memories.GetMinimumIntensity(memory.MemoryID)));
}
if (gen == 6 && memory.MemoryID != 4 && !Memories.CanHaveFeeling(memory.MemoryID, memory.Feeling))
{
if (pkm.Gen6 || (pkm.Gen7 && memory.MemoryID != 0)) // todo: memory feeling checks for gen8
return GetInvalid(string.Format(LMemoryFeelInvalid, memory.Handler));
}
return GetValid(string.Format(LMemoryF_0_Valid, memory.Handler));
}
private static bool CanKnowMove(PKM pkm, MemoryVariableSet memory, int gen, LegalInfo info, bool battleOnly = false)
{
var move = memory.Variable;
if (move == 0)
return false;
if (pkm.HasMove(move))
return true;
if (Legal.GetCanKnowMove(pkm, memory.Variable, gen, info.EvoChainsAllGens))
return true;
var enc = info.EncounterMatch;
if (enc is IMoveset ms && ms.Moves.Contains(move))
return true;
if (battleOnly)
{
// Some moves can only be known in battle; outside of battle they aren't obtainable as a memory parameter.
switch (move)
{
case 781 when pkm.Species == (int)Species.Zacian: // Behemoth Blade
case 782 when pkm.Species == (int)Species.Zamazenta: // Behemoth Blade
return true;
}
}
return false;
}
/// <summary>
/// Used for enforcing a fixed memory detail.
/// </summary>
/// <param name="data">Output storage</param>
/// <param name="m">Memory ID</param>
/// <param name="i">Intensity</param>
/// <param name="t">Text Variable</param>
/// <param name="f">Feeling</param>
private void VerifyOTMemoryIs(LegalityAnalysis data, int m, int i, int t, int f)
{
var pkm = (ITrainerMemories)data.pkm;
if (pkm.OT_Memory != m)
data.AddLine(GetInvalid(string.Format(LMemoryIndexID, L_XOT, m)));
if (pkm.OT_Intensity != i)
data.AddLine(GetInvalid(string.Format(LMemoryIndexIntensity, L_XOT, i)));
if (pkm.OT_TextVar != t)
data.AddLine(GetInvalid(string.Format(LMemoryIndexVar, L_XOT, t)));
if (pkm.OT_Feeling != f)
data.AddLine(GetInvalid(string.Format(LMemoryIndexFeel, L_XOT, f)));
}
private void VerifyHTMemoryNone(LegalityAnalysis data, ITrainerMemories pkm)
{
if (pkm.HT_Memory != 0 || pkm.HT_TextVar != 0 || pkm.HT_Intensity != 0 || pkm.HT_Feeling != 0)
data.AddLine(GetInvalid(string.Format(LMemoryCleared, L_XHT)));
}
private void VerifyOTMemory(LegalityAnalysis data)
{
var pkm = data.pkm;
var mem = (ITrainerMemories)pkm;
var Info = data.Info;
switch (data.EncounterMatch)
{
case WC6 {IsEgg: false} g when g.OTGender != 3:
VerifyOTMemoryIs(data, g.OT_Memory, g.OT_Intensity, g.OT_TextVar, g.OT_Feeling);
return;
case WC7 {IsEgg: false} g when g.OTGender != 3:
VerifyOTMemoryIs(data, g.OT_Memory, g.OT_Intensity, g.OT_TextVar, g.OT_Feeling);
return;
case WC8 {IsEgg: false} g when g.OTGender != 3:
VerifyOTMemoryIs(data, g.OT_Memory, g.OT_Intensity, g.OT_TextVar, g.OT_Feeling);
return;
case IMemoryOT t when t is not MysteryGift: // Ignore Mystery Gift cases (covered above)
VerifyOTMemoryIs(data, t.OT_Memory, t.OT_Intensity, t.OT_TextVar, t.OT_Feeling);
return;
}
int memoryGen = Info.Generation;
int memory = mem.OT_Memory;
if (pkm.IsEgg)
{
// Traded unhatched eggs in Gen8 have OT link trade memory applied erroneously.
if (memoryGen != 8 || !(pkm.Met_Location == Locations.LinkTrade6 && memory == 4))
{
VerifyOTMemoryIs(data, 0, 0, 0, 0); // empty
return;
}
}
else if (!CanHaveMemoryForOT(pkm, memoryGen, memory))
{
VerifyOTMemoryIs(data, 0, 0, 0, 0); // empty
return;
}
// Bounds checking
switch (memoryGen)
{
case 6 when pkm.XY && (memory > Memories.MAX_MEMORY_ID_XY || Memories.Memory_NotXY.Contains(memory)):
case 6 when pkm.AO && (memory > Memories.MAX_MEMORY_ID_AO || Memories.Memory_NotAO.Contains(memory)):
case 8 when pkm.SWSH && (memory > Memories.MAX_MEMORY_ID_SWSH || Memories.Memory_NotSWSH.Contains(memory)):
data.AddLine(GetInvalid(string.Format(LMemoryArgBadID, L_XOT)));
break;
}
// Verify memory if specific to OT
switch (memory)
{
// No Memory
case 0: // SWSH trades don't set HT memories immediately, which is hilarious.
data.AddLine(Get(LMemoryMissingOT, memoryGen == 8 ? Severity.Fishy : Severity.Invalid));
VerifyOTMemoryIs(data, 0, 0, 0, 0);
return;
// {0} hatched from an Egg and saw {1} for the first time at... {2}. {4} that {3}.
case 2 when !Info.EncounterMatch.EggEncounter:
data.AddLine(GetInvalid(string.Format(LMemoryArgBadHatch, L_XOT)));
break;
// {0} became {1}s friend when it arrived via Link Trade at... {2}. {4} that {3}.
case 4 when pkm.Gen6:
data.AddLine(GetInvalid(string.Format(LMemoryArgBadOTEgg, L_XOT)));
return;
// {0} went to the Pokémon Center in {2} with {1} and had its tired body healed there. {4} that {3}.
case 6 when memoryGen == 6 && !Memories.GetHasPokeCenterLocation((GameVersion)pkm.Version, mem.OT_TextVar):
data.AddLine(GetInvalid(string.Format(LMemoryArgBadLocation, L_XOT)));
return;
case 6 when memoryGen == 8 && mem.OT_TextVar != 0:
data.AddLine(Get(string.Format(LMemoryArgBadLocation, L_XOT), ParseSettings.Gen8MemoryLocationTextVariable));
return;
// {0} was with {1} when {1} caught {2}. {4} that {3}.
case 14:
var result = GetCanBeCaptured(mem.OT_TextVar, Info.Generation, (GameVersion)pkm.Version) // Any Game in the Handling Trainer's generation
? GetValid(string.Format(LMemoryArgSpecies, L_XOT))
: GetInvalid(string.Format(LMemoryArgBadSpecies, L_XOT));
data.AddLine(result);
return;
}
data.AddLine(VerifyCommonMemory(pkm, 0, Info.Generation, Info));
}
private static bool CanHaveMemoryForOT(PKM pkm, int origin, int memory)
{
switch (origin)
{
// Bank Memories only: Gen7 does not set memories.
case 1 or 2 or 7 when memory != 4: // VC transfers
// Memories don't exist
case 7 when pkm.GG: // LGPE does not set memories.
case 8 when pkm.GO_HOME: // HOME does not set memories.
case 8 when pkm.Met_Location == Locations.HOME8: // HOME does not set memories.
return false;
// Eggs cannot have memories
// Cannot have memories if the OT was from a generation prior to Gen6.
default:
return origin >= 6 && !pkm.IsEgg;
}
}
private void VerifyHTMemory(LegalityAnalysis data)
{
var pkm = data.pkm;
var mem = (ITrainerMemories)pkm;
var Info = data.Info;
var memory = mem.HT_Memory;
if (pkm.IsUntraded)
{
if (memory == 4 && WasTradedSWSHEgg(pkm))
{
// Untraded link trade eggs in Gen8 have HT link trade memory applied erroneously.
// Verify the link trade memory later.
}
else
{
VerifyHTMemoryNone(data, mem);
return;
}
}
if (pkm.Format == 7)
{
VerifyHTMemoryTransferTo7(data, pkm, Info);
return;
}
var memoryGen = pkm.Format >= 8 ? 8 : 6;
// Bounds checking
switch (memoryGen)
{
case 6 when memory > Memories.MAX_MEMORY_ID_AO:
case 8 when memory > Memories.MAX_MEMORY_ID_SWSH || Memories.Memory_NotSWSH.Contains(memory):
data.AddLine(GetInvalid(string.Format(LMemoryArgBadID, L_XHT)));
break;
}
// Verify memory if specific to HT
switch (memory)
{
// No Memory
case 0: // SWSH trades don't set HT memories immediately, which is hilarious.
data.AddLine(Get(LMemoryMissingHT, memoryGen == 8 ? Severity.Fishy : Severity.Invalid));
VerifyHTMemoryNone(data, mem);
return;
// {0} met {1} at... {2}. {1} threw a Poké Ball at it, and they started to travel together. {4} that {3}.
case 1:
data.AddLine(GetInvalid(string.Format(LMemoryArgBadCatch, L_XHT)));
return;
// {0} hatched from an Egg and saw {1} for the first time at... {2}. {4} that {3}.
case 2:
data.AddLine(GetInvalid(string.Format(LMemoryArgBadHatch, L_XHT)));
return;
// {0} went to the Pokémon Center in {2} with {1} and had its tired body healed there. {4} that {3}.
case 6 when memoryGen == 6 && !Memories.GetHasPokeCenterLocation(GameVersion.Gen6, mem.HT_TextVar):
data.AddLine(GetInvalid(string.Format(LMemoryArgBadLocation, L_XOT)));
return;
case 6 when memoryGen == 8 && mem.HT_TextVar != 0:
data.AddLine(Get(string.Format(LMemoryArgBadLocation, L_XOT), ParseSettings.Gen8MemoryLocationTextVariable));
return;
// {0} was with {1} when {1} caught {2}. {4} that {3}.
case 14:
var result = GetCanBeCaptured(mem.HT_TextVar, memoryGen, GameVersion.Any) // Any Game in the Handling Trainer's generation
? GetValid(string.Format(LMemoryArgSpecies, L_XHT))
: GetInvalid(string.Format(LMemoryArgBadSpecies, L_XHT));
data.AddLine(result);
return;
}
var commonResult = VerifyCommonMemory(pkm, 1, memoryGen, Info);
data.AddLine(commonResult);
}
private static bool WasTradedSWSHEgg(PKM pkm) => pkm.Gen8 && pkm.WasBredEgg;
private void VerifyHTMemoryTransferTo7(LegalityAnalysis data, PKM pkm, LegalInfo Info)
{
var mem = (ITrainerMemories)pkm;
// Bank Transfer adds in the Link Trade Memory.
// Trading 7<->7 between games (not Bank) clears this data.
if (mem.HT_Memory == 0)
{
VerifyHTMemoryNone(data, mem);
return;
}
// Transfer 6->7 & withdraw to same HT => keeps past gen memory
// Don't require link trade memory for these past gen cases
int gen = Info.Generation;
if (3 <= gen && gen < 7 && pkm.CurrentHandler == 1)
return;
if (mem.HT_Memory != 4)
data.AddLine(Severity.Invalid, LMemoryIndexLinkHT, CheckIdentifier.Memory);
if (mem.HT_TextVar != 0)
data.AddLine(Severity.Invalid, LMemoryIndexArgHT, CheckIdentifier.Memory);
if (mem.HT_Intensity != 1)
data.AddLine(Severity.Invalid, LMemoryIndexIntensityHT1, CheckIdentifier.Memory);
if (mem.HT_Feeling > 10)
data.AddLine(Severity.Invalid, LMemoryIndexFeelHT09, CheckIdentifier.Memory);
}
private static bool GetCanBeCaptured(int species, int gen, GameVersion version)
{
switch (gen)
{
// Capture Memory only obtainable via Gen 6.
case 6:
switch (version)
{
case GameVersion.Any:
return Legal.FriendSafari.Contains(species)
|| GetCanBeCaptured(species, SlotsX, StaticX)
|| GetCanBeCaptured(species, SlotsY, StaticY)
|| GetCanBeCaptured(species, SlotsA, StaticA)
|| GetCanBeCaptured(species, SlotsO, StaticO);
case GameVersion.X:
return Legal.FriendSafari.Contains(species)
|| GetCanBeCaptured(species, SlotsX, StaticX);
case GameVersion.Y:
return Legal.FriendSafari.Contains(species)
|| GetCanBeCaptured(species, SlotsY, StaticY);
case GameVersion.AS:
return GetCanBeCaptured(species, SlotsA, StaticA);
case GameVersion.OR:
return GetCanBeCaptured(species, SlotsO, StaticO);
}
break;
case 8:
{
switch (version)
{
case GameVersion.Any:
return GetCanBeCaptured(species, SlotsSW.Concat(SlotsSH), StaticSW.Concat(StaticSH));
case GameVersion.SW:
return GetCanBeCaptured(species, SlotsSW, StaticSW);
case GameVersion.SH:
return GetCanBeCaptured(species, SlotsSH, StaticSH);
}
break;
}
}
return false;
}
private static bool GetCanBeCaptured(int species, IEnumerable<EncounterArea> area, IEnumerable<EncounterStatic> statics)
{
if (area.Any(loc => loc.Slots.Any(slot => slot.Species == species)))
return true;
if (statics.Any(enc => enc.Species == species && !enc.Gift))
return true;
return false;
}
}
}