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".
61 lines
2.5 KiB
C#
61 lines
2.5 KiB
C#
using static PKHeX.Core.EvolutionRestrictions;
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using static PKHeX.Core.LegalityCheckStrings;
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namespace PKHeX.Core;
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/// <summary>
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/// Verify Evolution Information for a matched <see cref="IEncounterable"/>
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/// </summary>
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public static class EvolutionVerifier
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{
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/// <summary>
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/// Verifies Evolution scenarios of an <see cref="IEncounterable"/> for an input <see cref="PKM"/> and relevant <see cref="LegalInfo"/>.
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/// </summary>
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/// <param name="pk">Source data to verify</param>
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/// <param name="info">Source supporting information to verify with</param>
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public static CheckResult VerifyEvolution(PKM pk, LegalInfo info)
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{
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// Check if basic evolution methods are satisfiable with this encounter.
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if (!IsValidEvolution(pk, info))
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return new CheckResult(Severity.Invalid, LEvoInvalid, CheckIdentifier.Evolution);
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// Check if complex evolution methods are satisfiable with this encounter.
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if (!IsValidEvolutionWithMove(pk, info))
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return new CheckResult(Severity.Invalid, string.Format(LMoveEvoFCombination_0, ParseSettings.SpeciesStrings[pk.Species]), CheckIdentifier.Evolution);
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return VALID;
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}
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private static readonly CheckResult VALID = new(CheckIdentifier.Evolution);
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/// <summary>
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/// Checks if the Evolution from the source <see cref="IEncounterable"/> is valid.
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/// </summary>
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/// <param name="pk">Source data to verify</param>
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/// <param name="info">Source supporting information to verify with</param>
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/// <returns>Evolution is valid or not</returns>
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private static bool IsValidEvolution(PKM pk, LegalInfo info)
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{
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var chains = info.EvoChainsAllGens;
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if (chains.Get(pk.Context).Length == 0)
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return false; // Can't exist as current species
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// OK if un-evolved from original encounter
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ushort species = pk.Species;
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var enc = info.EncounterMatch;
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if (species == enc.Species) // never evolved
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return true;
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// Bigender->Fixed (non-Genderless) destination species, accounting for PID-Gender relationship
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if (species == (int)Species.Vespiquen && enc.Generation < 6 && (pk.EncryptionConstant & 0xFF) >= 0x1F) // Combee->Vespiquen Invalid Evolution
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return false;
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// Double check that our encounter was able to exist as the encounter species.
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foreach (var z in chains.Get(enc.Context))
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{
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if (z.Species == enc.Species)
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return true;
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}
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return false;
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}
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}
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