PKHeX/PKHeX.Core/Legality/Encounters/Verifiers/EvolutionVerifier.cs
Kurt 9a91619580 Update vc1 invalid transfer pruning
Closes #2065 Thanks @WEERSOQUEER !

Single evo species weren't getting flagged in the evolution verification
as they early returned (species matched), just move the sanity check
before that
2018-07-19 16:42:45 -07:00

50 lines
2.3 KiB
C#

using System.Linq;
using static PKHeX.Core.LegalityCheckStrings;
namespace PKHeX.Core
{
/// <summary>
/// Verify Evolution Information for a matched <see cref="IEncounterable"/>
/// </summary>
public static class EvolutionVerifier
{
/// <summary>
/// Verifies Evolution scenarios of an <see cref="IEncounterable"/> for an input <see cref="PKM"/> and relevant <see cref="LegalInfo"/>.
/// </summary>
/// <param name="pkm">Source data to verify</param>
/// <param name="info">Source supporting information to verify with</param>
/// <returns></returns>
public static CheckResult VerifyEvolution(PKM pkm, LegalInfo info)
{
return IsValidEvolution(pkm, info)
? new CheckResult(CheckIdentifier.Evolution)
: new CheckResult(Severity.Invalid, V86, CheckIdentifier.Evolution);
}
/// <summary>
/// Checks if the Evolution from the source <see cref="IEncounterable"/> is valid.
/// </summary>
/// <param name="pkm">Source data to verify</param>
/// <param name="info">Source supporting information to verify with</param>
/// <returns>Evolution is valid or not</returns>
private static bool IsValidEvolution(PKM pkm, LegalInfo info)
{
if (info.EvoChainsAllGens[pkm.Format].Count == 0)
return false; // Can't exist as current species
int species = pkm.Species;
if (info.EncounterMatch.Species == species)
return true;
if (info.EncounterMatch.EggEncounter && species == 350 && pkm.Format >= 5 && !pkm.IsUntraded) // Prism Scale
return true;
if (info.Generation > 0 && info.EvoChainsAllGens[info.Generation].All(z => z.Species != info.EncounterMatch.Species))
return false; // Can't exist as origin species
// If current species evolved with a move evolution and encounter species is not current species check if the evolution by move is valid
// Only the evolution by move is checked, if there is another evolution before the evolution by move is covered in IsEvolutionValid
if (Legal.SpeciesEvolutionWithMove.Contains(pkm.Species))
return Legal.IsEvolutionValidWithMove(pkm, info);
return true;
}
}
}