using System; using System.Linq; namespace PKHeX.Core { public static class EvolutionRestrictions { public static bool IsMoveRequiredToEvolve(PKM pkm, int gen) => IsMoveRequiredToEvolve(pkm.Species, pkm.Format, gen); public static bool IsMoveRequiredToEvolve(int species, int format, int gen) { if (!SpeciesEvolutionWithMove.Contains(species)) return false; if (format <= 3) return false; if (BabyEvolutionWithMove.Contains(species)) return gen > 3; return true; } internal static readonly int[] BabyEvolutionWithMove = { (int)Species.MrMime, // (Mime Jr with Mimic) (int)Species.Sudowoodo, // (Bonsly with Mimic) }; // List of species that evolve from a previous species having a move while leveling up internal static readonly int[] SpeciesEvolutionWithMove = { (int)Species.MrMime, // Mr. Mime (Mime Jr with Mimic) (int)Species.Sudowoodo, // Sudowoodo (Bonsly with Mimic) (int)Species.Ambipom, // Ambipom (Aipom with Double Hit) (int)Species.Lickilicky, // Lickilicky (Lickitung with Rollout) (int)Species.Tangrowth, // Tangrowth (Tangela with Ancient Power) (int)Species.Yanmega, // Yanmega (Yamma with Ancient Power) (int)Species.Mamoswine, // Mamoswine (Piloswine with Ancient Power) (int)Species.Sylveon, // Sylveon (Eevee with Fairy Move) (int)Species.Tsareena, // Tsareena (Steenee with Stomp) (int)Species.Grapploct // (Clobbopus with Taunt) }; internal static readonly int[] FairyMoves = { (int)Move.SweetKiss, (int)Move.Charm, (int)Move.Moonlight, (int)Move.DisarmingVoice, (int)Move.DrainingKiss, (int)Move.CraftyShield, (int)Move.FlowerShield, (int)Move.MistyTerrain, (int)Move.PlayRough, (int)Move.FairyWind, (int)Move.Moonblast, (int)Move.FairyLock, (int)Move.AromaticMist, (int)Move.Geomancy, (int)Move.DazzlingGleam, (int)Move.BabyDollEyes, (int)Move.LightofRuin, (int)Move.TwinkleTackleP, (int)Move.TwinkleTackleS, (int)Move.FloralHealing, (int)Move.GuardianofAlola, (int)Move.FleurCannon, (int)Move.NaturesMadness, (int)Move.LetsSnuggleForever, (int)Move.SparklySwirl, (int)Move.MaxStarfall, (int)Move.Decorate, (int)Move.SpiritBreak, (int)Move.StrangeSteam, (int)Move.MistyExplosion, }; // Moves that trigger the evolution by move private static readonly int[][] MoveEvolutionWithMove = { new [] { (int)Move.Mimic }, // Mr. Mime (Mime Jr with Mimic) new [] { (int)Move.Mimic }, // Sudowoodo (Bonsly with Mimic) new [] { (int)Move.DoubleHit }, // Ambipom (Aipom with Double Hit) new [] { (int)Move.Rollout }, // Lickilicky (Lickitung with Rollout) new [] { (int)Move.AncientPower }, // Tangrowth (Tangela with Ancient Power) new [] { (int)Move.AncientPower }, // Yanmega (Yamma with Ancient Power) new [] { (int)Move.AncientPower }, // Mamoswine (Piloswine with Ancient Power) FairyMoves, // Sylveon (Eevee with Fairy Move) new [] { (int)Move.Stomp }, // Tsareena (Steenee with Stomp) new [] { (int)Move.Taunt }, // Grapploct (Clobbopus with Taunt) }; // Min level for any species for every generation to learn the move for evolution by move // 0 means it cant be learned in that generation private static readonly int[][] MinLevelEvolutionWithMove = { new [] { 00, 00, 00, 00, 18, 15, 15, 02, 02 }, // Mr. Mime (Mime Jr with Mimic) new [] { 00, 00, 00, 00, 17, 17, 15, 02, 02 }, // Sudowoodo (Bonsly with Mimic) new [] { 00, 00, 00, 00, 32, 32, 32, 02, 02 }, // Ambipom (Aipom with Double Hit) new [] { 00, 00, 02, 00, 02, 33, 33, 02, 02 }, // Lickilicky (Lickitung with Rollout) new [] { 00, 00, 00, 00, 02, 36, 38, 02, 02 }, // Tangrowth (Tangela with Ancient Power) new [] { 00, 00, 00, 00, 02, 33, 33, 02, 02 }, // Yanmega (Yanma with Ancient Power) new [] { 00, 00, 00, 00, 02, 02, 02, 02, 02 }, // Mamoswine (Piloswine with Ancient Power) new [] { 00, 00, 00, 00, 00, 29, 09, 02, 02 }, // Sylveon (Eevee with Fairy Move) new [] { 00, 00, 00, 00, 00, 00, 00, 02, 28 }, // Tsareena (Steenee with Stomp) new [] { 00, 00, 00, 00, 00, 00, 00, 00, 35 }, // Grapploct (Clobbopus with Taunt) }; // True -> the pokemon could hatch from an egg with the move for evolution as an egg move private static readonly bool[][] EggMoveEvolutionWithMove = { new [] { false, false, false, false, true, true, true, true, true }, // Mr. Mime (Mime Jr with Mimic) new [] { false, false, false, false, true, true, true, true, true }, // Sudowoodo (Bonsly with Mimic) new [] { false, false, false, false, true, true, true, true, true }, // Ambipom (Aipom with Double Hit) new [] { false, false, true, false, true, true, true, true, true }, // Lickilicky (Lickitung with Rollout) new [] { false, false, false, false, true, true, true, true, true }, // Tangrowth (Tangela with Ancient Power) new [] { false, false, false, false, true, true, true, true, true }, // Yanmega (Yanma with Ancient Power) new [] { false, false, true, true, true, true, true, true, true }, // Mamoswine (Piloswine with Ancient Power) new [] { false, false, true, true, true, true, true, true, true }, // Sylveon (Eevee with Fairy Move) new [] { false, false, false, false, false, false, false, false, false }, // Tsareena (Steenee with Stomp) new [] { false, false, false, false, false, false, false, false, true }, // Grapploct (Clobbopus with Taunt) }; public static bool IsEvolutionValidWithMove(PKM pkm, LegalInfo info) { // Exclude species that do not evolve leveling with a move // Exclude gen 1-3 formats // Exclude Mr. Mime and Snorlax for gen 1-3 games var gen = info.Generation; if (!IsMoveRequiredToEvolve(pkm, gen)) return true; var lvl = GetLevelLearnMove(pkm, gen, info.EncounterMatch, info.Moves); // If has original met location the minimum evolution level is one level after met level // Gen 3 pokemon in gen 4 games: minimum level is one level after transfer to generation 4 // VC pokemon: minimum level is one level after transfer to generation 7 // Sylveon: always one level after met level, for gen 4 and 5 eevees in gen 6 games minimum for evolution is one level after transfer to generation 5 if (pkm.HasOriginalMetLocation || (pkm.Format == 4 && gen == 3) || pkm.VC || pkm.Species == (int)Species.Sylveon) lvl = Math.Max(pkm.Met_Level + 1, lvl); // Current level must be at least one the minimum learn level // the level-up event that triggers the learning of the move also triggers evolution with no further level-up required return pkm.CurrentLevel >= lvl; } public static int GetLevelLearnMove(PKM pkm, int gen, IEncounterable enc, CheckMoveResult[] res) { var index = Array.IndexOf(SpeciesEvolutionWithMove, pkm.Species); // Get the minimum level in any generation when the pokemon could learn the evolve move var levels = MinLevelEvolutionWithMove[index]; var lvl = 101; for (int g = gen; g <= pkm.Format; g++) { if (pkm.InhabitedGeneration(g) && levels[g] > 0) lvl = Math.Min(lvl, levels[g]); } // Check also if the current encounter include the evolve move as an special move // That means the pokemon have the move from the encounter level var moves = MoveEvolutionWithMove[index]; if (enc is IMoveset s && s.Moves.Any(m => moves.Contains(m))) lvl = Math.Min(lvl, enc.LevelMin); // If the encounter is a player hatched egg, check if the move could be an egg move or inherited level up move var allowegg = EggMoveEvolutionWithMove[index][gen]; if (enc is EncounterEgg && allowegg) { if (IsMoveInherited(pkm, gen, res, moves)) lvl = Math.Min(lvl, gen <= 3 ? 6 : 2); } return lvl; } private static bool IsMoveInherited(PKM pkm, int gen, CheckMoveResult[] res, int[] moves) { // In 3DS games, the inherited move must be in the relearn moves. if (gen >= 6) return pkm.RelearnMoves.Any(moves.Contains); // In Pre-3DS games, the move is inherited if it has the move and it can be hatched with the move. if (pkm.Moves.Any(moves.Contains)) return true; // If the pokemon does not have the move, it still could be an egg move that was forgotten. // This requires the pokemon to not have 4 other moves identified as egg moves or inherited level up moves. return 4 > res.Count(m => m.Source == MoveSource.EggMove || m.Source == MoveSource.InheritLevelUp); } } }