using System;
namespace PKHeX.Core;
///
/// Group that checks the source of a move in .
///
public sealed class LearnGroup8a : ILearnGroup
{
public static readonly LearnGroup8a Instance = new();
private const byte Generation = 8;
private const EntityContext Context = EntityContext.Gen8a;
public ushort MaxMoveID => Legal.MaxMoveID_8a;
public ILearnGroup? GetPrevious(PKM pk, EvolutionHistory history, IEncounterTemplate enc, LearnOption option) => null;
public bool HasVisited(PKM pk, EvolutionHistory history) => history.HasVisitedPLA;
public bool Check(Span result, ReadOnlySpan current, PKM pk, EvolutionHistory history,
IEncounterTemplate enc, MoveSourceType types = MoveSourceType.All, LearnOption option = LearnOption.Current)
{
var evos = history.Gen8a;
for (var i = 0; i < evos.Length; i++)
Check(result, current, pk, evos[i], i);
if (MoveResult.AllParsed(result))
return true;
var home = LearnGroupHOME.Instance;
if (option != LearnOption.HOME && home.HasVisited(pk, history))
return home.Check(result, current, pk, history, enc, types);
return false;
}
private static void Check(Span result, ReadOnlySpan current, PKM pk, EvoCriteria evo, int stage)
{
var game = LearnSource8LA.Instance;
if (!game.TryGetPersonal(evo.Species, evo.Form, out var pi))
return; // should never happen.
for (int i = result.Length - 1; i >= 0; i--)
{
if (result[i].Valid)
continue;
var move = current[i];
var chk = game.GetCanLearn(pk, pi, evo, move);
if (chk != default)
result[i] = new(chk, (byte)stage, Generation);
}
}
public void GetAllMoves(Span result, PKM pk, EvolutionHistory history, IEncounterTemplate enc, MoveSourceType types = MoveSourceType.All, LearnOption option = LearnOption.Current)
{
if (types.HasFlag(MoveSourceType.Encounter) && enc.Context == Context)
FlagEncounterMoves(enc, result);
foreach (var evo in history.Gen8a)
GetAllMoves(result, pk, evo, types, option);
var home = LearnGroupHOME.Instance;
if (option != LearnOption.HOME && home.HasVisited(pk, history))
home.GetAllMoves(result, pk, history, enc, types);
}
private static void GetAllMoves(Span result, PKM pk, EvoCriteria evo, MoveSourceType types, LearnOption option)
{
if (!FormChangeUtil.ShouldIterateForms(evo.Species, evo.Form, Generation, option))
{
GetAllMovesInternal(result, pk, evo, types);
return;
}
// Check all forms
var inst = LearnSource8LA.Instance;
if (!inst.TryGetPersonal(evo.Species, evo.Form, out var pi))
return;
var fc = pi.FormCount;
for (int i = 0; i < fc; i++)
GetAllMovesInternal(result, pk, evo with { Form = (byte)i }, types);
}
private static void GetAllMovesInternal(Span result, PKM pk, EvoCriteria evo, MoveSourceType types)
{
LearnSource8LA.Instance.GetAllMoves(result, pk, evo, types);
}
private static void FlagEncounterMoves(IEncounterTemplate enc, Span result)
{
if (enc is IMoveset { Moves: { HasMoves: true } x })
{
result[x.Move4] = true;
result[x.Move3] = true;
result[x.Move2] = true;
result[x.Move1] = true;
}
if (enc is IRelearn { Relearn: { HasMoves: true } r })
{
result[r.Move4] = true;
result[r.Move3] = true;
result[r.Move2] = true;
result[r.Move1] = true;
}
}
}