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PKHeX/Legality/Checks.cs
Kaphotics c7cb52ecbd Add Shedinja encounter check
2016-03-14 17:04:03 -07:00

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C#
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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<WC6> 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<int> baseMoves = new List<int>(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<int> window = new List<int>(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;
}
}
}
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