mirror of
https://github.com/kwsch/PKHeX
synced 2025-02-17 13:58:33 +00:00
dcc0e79435
Like move validation, evolutions are the earliest thing we wish to traverse when determining what encounters may have originated the current Pokémon. To determine the permitted species-form-levels a Pokémon could originate with, we must devolve a Pokémon by traveling down-generation to origin. Once we have an encounter, we can then evolve it to the current species, traversing upwards from origin to the current format.
71 lines
2.5 KiB
C#
71 lines
2.5 KiB
C#
using System;
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namespace PKHeX.Core;
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/// <summary>
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/// Group that checks the source of a move in <see cref="GameVersion.Gen7b"/>.
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/// </summary>
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public sealed class LearnGroup7b : ILearnGroup
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{
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public static readonly LearnGroup7b Instance = new();
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private const int Generation = 7;
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public ushort MaxMoveID => Legal.MaxMoveID_7b;
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public ILearnGroup? GetPrevious(PKM pk, EvolutionHistory history, IEncounterTemplate enc, LearnOption option) => null;
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public bool HasVisited(PKM pk, EvolutionHistory history) => history.HasVisitedLGPE;
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public bool Check(Span<MoveResult> result, ReadOnlySpan<ushort> current, PKM pk, EvolutionHistory history,
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IEncounterTemplate enc, MoveSourceType types = MoveSourceType.All, LearnOption option = LearnOption.Current)
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{
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var evos = history.Gen7b;
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for (var i = 0; i < evos.Length; i++)
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Check(result, current, pk, evos[i], i);
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return MoveResult.AllParsed(result);
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}
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private static void Check(Span<MoveResult> result, ReadOnlySpan<ushort> current, PKM pk, EvoCriteria evo, int stage)
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{
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var game = LearnSource7GG.Instance;
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if (!game.TryGetPersonal(evo.Species, evo.Form, out var pi))
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return; // should never happen.
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for (int i = result.Length - 1; i >= 0; i--)
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{
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if (result[i].Valid)
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continue;
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var move = current[i];
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var chk = game.GetCanLearn(pk, pi, evo, move);
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if (chk != default)
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result[i] = new(chk, (byte)stage, Generation);
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}
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}
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public void GetAllMoves(Span<bool> result, PKM pk, EvolutionHistory history, IEncounterTemplate enc, MoveSourceType types = MoveSourceType.All, LearnOption option = LearnOption.Current)
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{
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if (types.HasFlag(MoveSourceType.Encounter) && enc.Generation == Generation)
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FlagEncounterMoves(enc, result);
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foreach (var evo in history.Gen7b)
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LearnSource7GG.Instance.GetAllMoves(result, pk, evo, types);
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}
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private static void FlagEncounterMoves(IEncounterTemplate enc, Span<bool> result)
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{
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if (enc is IMoveset { Moves: { HasMoves: true } x })
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{
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result[x.Move4] = true;
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result[x.Move3] = true;
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result[x.Move2] = true;
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result[x.Move1] = true;
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}
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if (enc is IRelearn { Relearn: { HasMoves: true } r })
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{
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result[r.Move4] = true;
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result[r.Move3] = true;
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result[r.Move2] = true;
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result[r.Move1] = true;
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}
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}
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}
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