mirror of
https://github.com/kwsch/PKHeX
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3c232505e5
In this pull request I've changed a ton of method signatures to reflect the more-narrow types of Species, Move# and Form; additionally, I've narrowed other large collections that stored lists of species / permitted values, and reworked them to be more performant with the latest API spaghetti that PKHeX provides. Roamer met locations, usually in a range of [max-min]<64, can be quickly checked using a bitflag operation on a UInt64. Other collections (like "Is this from Colosseum or XD") were eliminated -- shadow state is not transferred COLO<->XD, so having a Shadow ID or matching the met location from a gift/wild encounter is a sufficient check for "originated in XD".
40 lines
1.5 KiB
C#
40 lines
1.5 KiB
C#
using System;
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using System.Buffers;
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namespace PKHeX.Core;
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/// <summary>
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/// Caches move learn data via <see cref="ReloadMoves"/>
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/// </summary>
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public sealed class LegalMoveInfo
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{
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// Use a bool array instead of a HashSet; we have a limited range of moves.
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// This implementation is faster (no hashcode or bucket search) with lower memory overhead (1 byte per move ID).
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private readonly bool[] AllowedMoves = new bool[(int)Move.MAX_COUNT + 1];
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/// <summary>
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/// Checks if the requested <see cref="move"/> is legally able to be learned.
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/// </summary>
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/// <param name="move">Move to check if can be learned</param>
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/// <returns>True if can learn the move</returns>
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public bool CanLearn(ushort move) => AllowedMoves[move];
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/// <summary>
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/// Reloads the legality sources to permit the provided legal info.
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/// </summary>
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/// <param name="la">Details of analysis, moves to allow</param>
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public bool ReloadMoves(LegalityAnalysis la)
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{
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var rent = ArrayPool<bool>.Shared.Rent(AllowedMoves.Length);
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var span = rent.AsSpan(0, AllowedMoves.Length);
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LearnPossible.Get(la.Entity, la.EncounterOriginal, la.Info.EvoChainsAllGens, span);
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// check prior move-pool to not needlessly refresh the data set
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bool diff = !span.SequenceEqual(AllowedMoves);
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if (diff) // keep
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span.CopyTo(AllowedMoves);
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span.Clear();
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ArrayPool<bool>.Shared.Return(rent);
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return diff;
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}
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}
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