mirror of
https://github.com/kwsch/PKHeX
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ef3cb34387
* Make EvolutionCriteria struct 8 bytes per object instead of 26 Unify LevelMin/LevelMax to match EncounterTemplate bubble up precise array type for better iteration * Inline queue operations, less allocation * Inline some logic * Update EvolutionChain.cs * Improve clarity on duplicate move check * Search reverse For a dual stage chain, finds it first iteration rather than second.
59 lines
2.6 KiB
C#
59 lines
2.6 KiB
C#
using System.Linq;
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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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{
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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="pkm">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 pkm, 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(pkm, 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(pkm, info))
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return new CheckResult(Severity.Invalid, string.Format(LMoveEvoFCombination_0, ParseSettings.SpeciesStrings[pkm.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="pkm">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 pkm, LegalInfo info)
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{
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var chains = info.EvoChainsAllGens;
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if (chains[pkm.Format].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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int species = pkm.Species;
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if (info.EncounterMatch.Species == species)
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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 && info.Generation < 6 && (pkm.PID & 0xFF) >= 0x1F) // Combee->Vespiquen Invalid Evolution
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return false;
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if (chains[info.Generation].All(z => z.Species != info.EncounterMatch.Species))
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return false; // Can't exist as origin species
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return true;
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}
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}
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}
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