/// <summary>
/// Checks supplementary info to see if the encounter is still valid.
/// </summary>
/// <remarks>
/// When an encounter is initially validated, only encounter-related checks are performed.
/// By checking Moves, Evolution, and <see cref="PIDIV"/> data, a best match encounter can be found.
/// If the encounter is not valid, the method will not reject it unless another encounter is available to check.
/// </remarks>
/// <param name="pkm">Source data to check the match for</param>
/// <param name="info">Information containing the matched encounter</param>
/// <param name="iterator">Peekable iterator </param>
/// <returns>Indication whether or not the encounter passes secondary checks</returns>
private static bool VerifySecondaryChecks(PKM pkm, LegalInfo info, PeekEnumerator <IEncounterable> iterator)
{
if (pkm.Format >= 6)
{
info.Relearn = VerifyRelearnMoves.VerifyRelearn(pkm, info);
if (info.Relearn.Any(z => !z.Valid) && iterator.PeekIsNext())
{
return(false);
}
}
else
{
for (int i = 0; i < 4; i++)
{
info.Relearn[i] = new CheckResult(CheckIdentifier.RelearnMove);
}
}
info.Moves = VerifyCurrentMoves.VerifyMoves(pkm, info);
if (info.Moves.Any(z => !z.Valid) && iterator.PeekIsNext())
{
return(false);
}
var evo = EvolutionVerifier.VerifyEvolution(pkm, info);
if (!evo.Valid && iterator.PeekIsNext())
{
return(false);
}
info.Parse.Add(evo);
return(true);
}
/// <summary>
/// Returns legality info for an unmatched encounter scenario, including a hint as to what the actual match could be.
/// </summary>
/// <param name="pkm">Source data to check the match for</param>
/// <param name="info">Information containing the unmatched encounter</param>
/// <returns>Updated information pertaining to the unmatched encounter</returns>
private static LegalInfo VerifyWithoutEncounter(PKM pkm, LegalInfo info)
{
info.EncounterMatch = new EncounterInvalid(pkm);
string hint; // hint why an encounter was not found
if (pkm.WasGiftEgg)
{
hint = LEncGift;
}
else if (pkm.WasEventEgg)
{
hint = LEncGiftEggEvent;
}
else if (pkm.WasEvent)
{
hint = LEncGiftNotFound;
}
else
{
hint = LEncInvalid;
}
info.Parse.Add(new CheckResult(Severity.Invalid, hint, CheckIdentifier.Encounter));
info.Relearn = VerifyRelearnMoves.VerifyRelearn(pkm, info);
info.Moves = VerifyCurrentMoves.VerifyMoves(pkm, info);
return(info);
}
private static int[] GetNeededMoves(PKM pk, IEnumerable <int> moves, IReadOnlyList <EvoCriteria> chain)
{
if (pk.Species == (int)Species.Smeargle)
{
return(moves.Intersect(Legal.InvalidSketch).ToArray()); // Can learn anything
}
// Roughly determine the generation the PKM is originating from
var ver = pk.Version;
int origin = pk.Generation;
if (origin < 0)
{
origin = ((GameVersion)ver).GetGeneration();
}
// Temporarily replace the Version for VC1 transfers, so that they can have VC2 moves if needed.
bool vcBump = origin == 1 && pk.Format >= 7;
if (vcBump)
{
pk.Version = (int)GameVersion.C;
}
var gens = VerifyCurrentMoves.GetGenMovesCheckOrder(pk, origin);
var canlearn = gens.SelectMany(z => GetMovesForGeneration(pk, chain, z));
var result = moves.Except(canlearn).Where(z => z != 0).ToArray();
if (vcBump)
{
pk.Version = ver;
}
return(result);
}
/// <summary>
/// Returns legality info for an unmatched encounter scenario, including a hint as to what the actual match could be.
/// </summary>
/// <param name="pkm">Source data to check the match for</param>
/// <param name="info">Information containing the unmatched encounter</param>
/// <returns>Updated information pertaining to the unmatched encounter</returns>
private static LegalInfo VerifyWithoutEncounter(PKM pkm, LegalInfo info)
{
info.EncounterMatch = new EncounterInvalid(pkm);
string hint = GetHintWhyNotFound(pkm);
info.Parse.Add(new CheckResult(Severity.Invalid, hint, CheckIdentifier.Encounter));
info.Relearn = VerifyRelearnMoves.VerifyRelearn(pkm, info);
info.Moves = VerifyCurrentMoves.VerifyMoves(pkm, info);
return(info);
}
private static int[] GetNeededMoves(PKM pk, IEnumerable <int> moves, IReadOnlyList <EvoCriteria> dl)
{
if (pk.Species == 235) // Smeargle
{
return(moves.Intersect(Legal.InvalidSketch).ToArray()); // Can learn anything
}
var gens = VerifyCurrentMoves.GetGenMovesCheckOrder(pk);
var canlearn = gens.SelectMany(z => Legal.GetValidMoves(pk, dl, z));
return(moves.Except(canlearn).ToArray());
}
/// <summary>
/// Gets possible encounters that allow all moves requested to be learned.
/// </summary>
/// <param name="pk">Rough Pokémon data which contains the requested species, gender, and form.</param>
/// <param name="moves">Moves that the resulting <see cref="IEncounterable"/> must be able to learn.</param>
/// <param name="version">Specific version to iterate for.</param>
/// <returns>A consumable <see cref="IEncounterable"/> list of possible encounters.</returns>
public static IEnumerable <IEncounterable> GenerateVersionEncounters(PKM pk, IEnumerable <int> moves, GameVersion version)
{
pk.Version = (int)version;
var et = EvolutionTree.GetEvolutionTree(PKX.Generation);
var dl = et.GetValidPreEvolutions(pk, maxLevel: 100, skipChecks: true);
var gens = VerifyCurrentMoves.GetGenMovesCheckOrder(pk);
var canlearn = gens.SelectMany(z => Legal.GetValidMoves(pk, dl, z));
var needs = moves.Except(canlearn).ToArray();
foreach (var enc in GetPossible(pk, needs, version))
{
yield return(enc);
}
}
private static int[] GetNeededMoves(PKM pk, IEnumerable <int> moves, IReadOnlyList <EvoCriteria> chain)
{
if (pk.Species == (int)Species.Smeargle)
{
return(moves.Intersect(Legal.InvalidSketch).ToArray()); // Can learn anything
}
// Roughly determine the generation the PKM is originating from
int origin = pk.GenNumber;
if (origin < 0)
{
origin = ((GameVersion)pk.Version).GetGeneration();
}
var gens = VerifyCurrentMoves.GetGenMovesCheckOrder(pk, origin);
var canlearn = gens.SelectMany(z => GetMovesForGeneration(pk, chain, z));
return(moves.Except(canlearn).Where(z => z != 0).ToArray());
}
