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Flag any cxd origin with bad pidiv

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This commit is contained in:
Kurt 2017-05-13 00:03:35 -07:00
parent bbdb21c626
commit a3e1ec2a82
1 changed files with 29 additions and 25 deletions
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54
PKHeX.Core/Legality/Checks.cs
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@ -1364,40 +1364,44 @@ private void verifyCXD()
}
else if (Type == typeof (EncounterStatic))
{
// Starters have a correlation to the Trainer ID numbers
var spec = ((EncounterStatic) EncounterMatch).Species;
var rev = int.MinValue;
switch (spec)
{
// pidiv reversed 5x yields SID, again == TID. +7 if another PKM is generated
case 133: // Eevee
rev = 5; break;
case 197: // Umbreon (generated before Espeon)
rev = 5; break;
case 196: // Espeon (generated after Umbreon)
rev = 12; break;
}
if (rev == int.MinValue)
return;
var pidiv = MethodFinder.Analyze(pkm);
if (pidiv == null || pidiv.Type != PIDType.CXD)
{
AddLine(Severity.Invalid, V400, CheckIdentifier.PID);
return;
}
var seed = pidiv.OriginSeed;
var SIDf = pidiv.RNG.Reverse(seed, rev);
var TIDf = pidiv.RNG.Prev(SIDf);
if (SIDf >> 16 != pkm.SID || TIDf >> 16 != pkm.TID)
AddLine(Severity.Invalid, V400, CheckIdentifier.PID);
else // Starters have a correlation to the Trainer ID numbers
verifyCXDStarterCorrelation(pidiv);
}
else if (pkm.WasEgg) // can't obtain eggs in CXD
{
AddLine(Severity.Invalid, V80, CheckIdentifier.Encounter); // invalid encounter
}
}
private void verifyCXDStarterCorrelation(PIDIV pidiv)
{
var spec = ((EncounterStatic)EncounterMatch).Species;
int rev; // pidiv reversed 5x yields SID, 6x yields TID. shift by 7 if another PKM is generated prior
switch (spec)
{
// XD
case 133: // Eevee
rev = 5;
break;
// Colosseum
case 197: // Umbreon (generated before Espeon)
rev = 5;
break;
case 196: // Espeon (generated after Umbreon)
rev = 5+7;
break;
default:
return;
}
var seed = pidiv.OriginSeed;
var SIDf = pidiv.RNG.Reverse(seed, rev);
var TIDf = pidiv.RNG.Prev(SIDf);
if (SIDf >> 16 != pkm.SID || TIDf >> 16 != pkm.TID)
AddLine(Severity.Invalid, V400, CheckIdentifier.PID);
}
private void verifyAbility()
{