using System; using System.Collections.Generic; using System.Linq; namespace PKHeX { public enum Severity { Indeterminate = -2, Invalid = -1, Fishy = 0, Valid = 1, NotImplemented = 2, } public class LegalityCheck { public Severity Judgement = Severity.Valid; public string Comment = "Valid"; public bool Valid => Judgement >= Severity.Fishy; public LegalityCheck() { } public LegalityCheck(Severity s, string c) { Judgement = s; Comment = c; } } public partial class LegalityAnalysis { private LegalityCheck verifyECPID() { // Secondary Checks if (pk6.EncryptionConstant == 0) return new LegalityCheck(Severity.Fishy, "Encryption Constant is not set."); if (pk6.PID == 0) return new LegalityCheck(Severity.Fishy, "PID is not set."); if (pk6.Gen6) return new LegalityCheck(); // When transferred to Generation 6, the Encryption Constant is copied from the PID. // The PID is then checked to see if it becomes shiny with the new Shiny rules (>>4 instead of >>3) // If the PID is nonshiny->shiny, the top bit is flipped. // Check to see if the PID and EC are properly configured. bool xorPID = ((pk6.TID ^ pk6.SID ^ (int)(pk6.PID & 0xFFFF) ^ (int)(pk6.PID >> 16)) & 0x7) == 8; bool valid = xorPID ? pk6.EncryptionConstant == (pk6.PID ^ 0x8000000) : pk6.EncryptionConstant == pk6.PID; if (!valid) if (xorPID) return new LegalityCheck(Severity.Invalid, "PID should be equal to EC [with top bit flipped]!"); else return new LegalityCheck(Severity.Invalid, "PID should be equal to EC!"); return new LegalityCheck(); } private LegalityCheck verifyNickname() { LegalityCheck r = new LegalityCheck { Judgement = Severity.NotImplemented }; // If the Pokémon is not nicknamed, it should match one of the language strings. if (pk6.Nickname.Length == 0) { r.Judgement = Severity.Indeterminate; r.Comment = "Pokémon nickname is empty."; } return r; } private LegalityCheck verifyEVs() { var evs = pk6.EVs; int sum = evs.Sum(); if (sum == 0 && pk6.Met_Level != pk6.Stat_Level && pk6.Stat_Level > 1) return new LegalityCheck(Severity.Fishy, "All EVs are zero, but leveled above Met Level"); if (sum == 508) return new LegalityCheck(Severity.Fishy, "2 EVs remaining."); if (sum > 510) return new LegalityCheck(Severity.Invalid, "EV total cannot be above 510."); if (evs.Any(ev => ev > 252)) return new LegalityCheck(Severity.Invalid, "EVs cannot go above 252."); if (evs.All(ev => pk6.EVs[0] == ev) && evs[0] != 0) return new LegalityCheck(Severity.Fishy, "EVs are all equal."); return new LegalityCheck(); } private LegalityCheck verifyIVs() { if (pk6.IVs.Sum() == 0) return new LegalityCheck(Severity.Fishy, "All IVs are zero."); if (pk6.IVs[0] < 30 && pk6.IVs.All(iv => pk6.IVs[0] == iv)) return new LegalityCheck(Severity.Fishy, "All IVs are equal."); return new LegalityCheck(); } private LegalityCheck verifyID() { if (pk6.TID == 0 && pk6.SID == 0) return new LegalityCheck(Severity.Fishy, "TID and SID are zero."); if (pk6.TID == 0) return new LegalityCheck(Severity.Fishy, "TID is zero."); if (pk6.SID == 0) return new LegalityCheck(Severity.Fishy, "SID is zero."); return new LegalityCheck(); } private LegalityCheck verifyEncounter() { if (!pk6.Gen6) return new LegalityCheck {Judgement = Severity.NotImplemented}; if (pk6.WasLink) { if (pk6.FatefulEncounter || Legal.getLinkMoves(pk6).Length == 0) // Should NOT be Fateful, and should be in Database return new LegalityCheck(Severity.Invalid, "Not a valid Link gift."); } if (pk6.WasEvent || pk6.WasEventEgg) { return MatchedWC6 != null // Matched in RelearnMoves check. ? new LegalityCheck(Severity.Valid, $"Matches #{MatchedWC6.CardID.ToString("0000")} ({MatchedWC6.CardTitle})") : new LegalityCheck(Severity.Invalid, "Not a valid Wonder Card gift."); } if (pk6.Species == 292) // Shedinja { if (pk6.Ball != 4) return new LegalityCheck(Severity.Invalid, "Invalid Shedinja ball."); if (pk6.Egg_Location != 0) return new LegalityCheck(Severity.Invalid, "Shedinja should not have an Egg Met date/location."); if (pk6.Version < 26) // XY { var lc = Legal.ValidMet_XY.Contains(pk6.Met_Location) ? new LegalityCheck(Severity.Valid, "Valid X/Y Shedinja.") : new LegalityCheck(Severity.Invalid, "Invalid X/Y location for Shedinja."); return lc; } if (pk6.Version < 28) { var lc = Legal.ValidMet_AO.Contains(pk6.Met_Location) ? new LegalityCheck(Severity.Valid, "Valid OR/AS Shedinja.") : new LegalityCheck(Severity.Invalid, "Invalid OR/AS location for Shedinja."); return lc; } return new LegalityCheck(Severity.Invalid, "Invalid Shedinja encounter."); } if (pk6.WasEgg) { // Check Hatch Locations if (pk6.Met_Level != 1) return new LegalityCheck(Severity.Invalid, "Invalid met level, expected 1."); if (pk6.IsEgg) { var lc = pk6.Met_Location == 0 ? new LegalityCheck(Severity.Valid, "Valid un-hatched egg.") : new LegalityCheck(Severity.Invalid, "Invalid location for un-hatched egg (expected ID:0)"); return lc; } if (pk6.Version < 26) // XY { var lc = Legal.ValidMet_XY.Contains(pk6.Met_Location) ? new LegalityCheck(Severity.Valid, "Valid X/Y hatched egg.") : new LegalityCheck(Severity.Invalid, "Invalid X/Y location for hatched egg."); return lc; } if (pk6.Version < 28) { var lc = Legal.ValidMet_AO.Contains(pk6.Met_Location) ? new LegalityCheck(Severity.Valid, "Valid OR/AS hatched egg.") : new LegalityCheck(Severity.Invalid, "Invalid OR/AS location for hatched egg."); return lc; } return new LegalityCheck(Severity.Invalid, "Invalid location for hatched egg."); } EncounterStatic z = Legal.getStaticEncounter(pk6); if (z != null) return new LegalityCheck(Severity.Valid, "Valid gift/static encounter."); int FriendSafari = Legal.getFriendSafariValid(pk6); if (FriendSafari > 0) return new LegalityCheck(Severity.Valid, "Valid friend safari encounter."); // Not Implemented: In-Game Trades if (Legal.getDexNavValid(pk6) || Legal.getWildEncounterValid(pk6)) { var lc = pk6.AbilityNumber != 4 ? new LegalityCheck(Severity.Valid, "Valid encounter at location.") : new LegalityCheck(Severity.Invalid, "Hidden ability on valid encounter."); return lc; } return new LegalityCheck(Severity.Invalid, "Not a valid encounter."); } private LegalityCheck[] verifyMoves() { int[] Moves = pk6.Moves; LegalityCheck[] res = new LegalityCheck[4]; for (int i = 0; i < 4; i++) res[i] = new LegalityCheck(); if (!pk6.Gen6) return res; var validMoves = Legal.getValidMoves(pk6).ToArray(); if (pk6.Species == 235) { for (int i = 0; i < 4; i++) res[i] = Legal.InvalidSketch.Contains(Moves[i]) ? new LegalityCheck(Severity.Invalid, "Invalid Sketch move.") : new LegalityCheck(); } else { int[] RelearnMoves = pk6.RelearnMoves; int[] WC6Moves = MatchedWC6?.Moves ?? new int[0]; for (int i = 0; i < 4; i++) { if (Moves[i] == Legal.Struggle) res[i] = new LegalityCheck(Severity.Invalid, "Invalid Move: Struggle."); else if (validMoves.Contains(Moves[i])) res[i] = new LegalityCheck(Severity.Valid, "Level-up."); else if (RelearnMoves.Contains(Moves[i])) res[i] = new LegalityCheck(Severity.Valid, "Relearn Move."); else if (WC6Moves.Contains(Moves[i])) res[i] = new LegalityCheck(Severity.Valid, "Wondercard Non-Relearn Move."); else res[i] = new LegalityCheck(Severity.Invalid, "Invalid Move."); } } if (Moves[0] == 0) res[0] = new LegalityCheck(Severity.Invalid, "Invalid Move."); return res; } private LegalityCheck[] verifyRelearn() { LegalityCheck[] res = new LegalityCheck[4]; MatchedWC6 = null; // Reset int[] Moves = pk6.RelearnMoves; if (!pk6.Gen6) goto noRelearn; if (pk6.WasLink) { int[] moves = Legal.getLinkMoves(pk6); for (int i = 0; i < 4; i++) res[i] = moves[i] != Moves[i] ? new LegalityCheck(Severity.Invalid, $"Expected ID:{moves[i]}.") : new LegalityCheck(); return res; } if (pk6.WasEvent || pk6.WasEventEgg) { // Get WC6's that match IEnumerable vwc6 = Legal.getValidWC6s(pk6); foreach (var wc in vwc6) { int[] moves = wc.RelearnMoves; for (int i = 0; i < 4; i++) res[i] = moves[i] != Moves[i] ? new LegalityCheck(Severity.Invalid, $"Expected ID:{moves[i]}.") : new LegalityCheck(Severity.Valid, $"Matched WC #{wc.CardID.ToString("0000")}"); if (res.All(r => r.Valid)) { MatchedWC6 = wc; return res; } } goto noRelearn; // No WC match } if (pk6.WasEgg) { const int games = 2; bool checkAllGames = pk6.WasTradedEgg; bool splitBreed = Legal.SplitBreed.Contains(pk6.Species); int iterate = (checkAllGames ? games : 1) * (splitBreed ? 2 : 1); for (int i = 0; i < iterate; i++) { int gameSource = !checkAllGames ? -1 : i % iterate / (splitBreed ? 2 : 1); int skipOption = splitBreed && iterate / 2 <= i ? 1 : 0; // Obtain level1 moves List baseMoves = new List(Legal.getBaseEggMoves(pk6, skipOption, gameSource)); int baseCt = baseMoves.Count; if (baseCt > 4) baseCt = 4; // Obtain Nonstandard moves var relearnMoves = Legal.getValidRelearn(pk6, skipOption).ToArray(); var relearn = pk6.RelearnMoves.Where(move => move != 0 && (!baseMoves.Contains(move) || relearnMoves.Contains(move)) ).ToArray(); int relearnCt = relearn.Length; // Get Move Window List window = new List(baseMoves); window.AddRange(relearn); int[] moves = window.Skip(baseCt + relearnCt - 4).Take(4).ToArray(); Array.Resize(ref moves, 4); int req; if (relearnCt == 4) req = 0; else if (baseCt + relearnCt > 4) req = 4 - relearnCt; else req = baseCt; // Movepool finalized! Check validity. int[] rl = pk6.RelearnMoves; string em = string.Join(", ", baseMoves); // Base Egg Move for (int j = 0; j < req; j++) res[j] = !baseMoves.Contains(rl[j]) ? new LegalityCheck(Severity.Invalid, $"Base egg move missing; expected one of: {em}.") : new LegalityCheck(Severity.Valid, "Base egg move."); // Non-Base if (Legal.LightBall.Contains(pk6.Species)) relearnMoves = relearnMoves.Concat(new[] { 344 }).ToArray(); for (int j = req; j < 4; j++) res[j] = !relearnMoves.Contains(rl[j]) ? new LegalityCheck(Severity.Invalid, "Not an expected relearn move.") : new LegalityCheck(Severity.Valid, "Relearn move."); if (res.All(r => r.Valid)) break; } return res; } if (Moves[0] != 0) // DexNav only? { // Check DexNav if (!Legal.getDexNavValid(pk6)) goto noRelearn; res[0] = !Legal.getValidRelearn(pk6, 0).Contains(Moves[0]) ? new LegalityCheck(Severity.Invalid, "Not an expected DexNav move.") : new LegalityCheck(); for (int i = 1; i < 4; i++) res[i] = Moves[i] != 0 ? new LegalityCheck(Severity.Invalid, "Expected no Relearn Move in slot.") : new LegalityCheck(); return res; } // Should have no relearn moves. noRelearn: for (int i = 0; i < 4; i++) res[i] = Moves[i] != 0 ? new LegalityCheck(Severity.Invalid, "Expected no Relearn Moves.") : new LegalityCheck(); return res; } } }