private static bool IsUnobtainable(this EncounterSlot slot, ITrainerID pk)
{
switch (slot.Generation)
{
case 2:
if ((slot.Type & SlotType.Safari) != 0) // Safari Zone is unavailable in Gen 2.
{
return(true);
}
if ((slot.Type & SlotType.Headbutt) != 0) // Unreachable Headbutt Trees.
{
return(Encounters2.GetGSCHeadbuttAvailability(slot, pk.TID) != TreeEncounterAvailable.ValidTree);
}
break;
case 4:
if (slot.Location == 193 && slot.Type == SlotType.Surf) // Johto Route 45 surfing encounter. Unreachable Water tiles.
{
return(true);
}
break;
}
return(false);
}
public void LoadIDValues(ITrainerID tr)
{
Trainer = tr;
int format = tr.GetTrainerIDFormat();
SetFormat(format);
LoadValues();
}
private static string GetAlternateRepresentation(ITrainerID tr, int format)
{
if (format >= 7)
{
return($"ID: {tr.TID:D5}/{tr.SID:D5}");
}
var repack = (uint)((tr.SID << 16) | tr.TID); // 32bit
return($"G7ID: ({repack / 1_000_000:D4}){repack % 1_000_000:D6}");
}
private static CheckResult VerifyWildEncounterCrystalHeadbutt(ITrainerID tr, EncounterSlot encounter)
{
var tree = Encounters2.GetGSCHeadbuttAvailability(encounter, tr.TID);
switch (tree)
{
case TreeEncounterAvailable.ValidTree:
return(new CheckResult(Severity.Valid, LG2TreeID, CheckIdentifier.Encounter));
case TreeEncounterAvailable.InvalidTree:
return(new CheckResult(Severity.Invalid, LG2InvalidTileTreeID, CheckIdentifier.Encounter));
default: // Impossible
return(new CheckResult(Severity.Invalid, LG2InvalidTileTreeNotFound, CheckIdentifier.Encounter));
}
}
public static int GetTrainerIDFormat(this ITrainerID tr)
{
if (tr is PKM p)
{
var format = p.GenNumber;
if ((format < 3 && p.Format >= 7) || format <= 0) // VC or bad gen
{
return(4); // use TID/SID 16bit style
}
return(format);
}
if (tr is SaveFile s)
{
return(s.Generation);
}
return(-1);
}
public void LoadIDValues(ITrainerID tr)
{
Trainer = tr;
int format;
if (tr is PKM p)
{
format = p.GenNumber;
if (format < 3 && p.Format >= 7 || format <= 0) // VC or bad gen
{
format = 4; // use TID/SID 16bit style
}
}
else
{
format = tr is SaveFile s ? s.Generation : -1;
}
SetFormat(format);
LoadValues();
}
private static uint GetRevisedPID(uint fakeTID, uint pid, ITrainerID tr)
{
var xor = GetShinyXor(pid, fakeTID);
var newXor = GetShinyXor(pid, (uint)(tr.TID | (tr.SID << 16)));
var fakeRare = GetRareType(xor);
var newRare = GetRareType(newXor);
if (fakeRare == newRare)
{
return(pid);
}
var isShiny = xor < 16;
if (isShiny)
{
return((((uint)(tr.TID ^ tr.SID) ^ (pid & 0xFFFF) ^ (xor == 0 ? 0u : 1u)) << 16) | (pid & 0xFFFF)); // force same shiny star type
}
return(pid ^ 0x1000_0000);
}
public static bool IsShiny(this ITrainerID tr, uint pid, int gen = 7)
{
var xor = tr.SID ^ tr.TID ^ (pid >> 16) ^ pid;
return(xor < (gen >= 7 ? 16 : 8));
}
