/// <summary>
/// Sanity checks the provided <see cref="PKM.Gender"/> value, and returns a sane value.
/// </summary>
/// <param name="pk"></param>
/// <returns>Most-legal <see cref="PKM.Gender"/> value</returns>
public static int GetSaneGender(this PKM pk)
{
int gt = pk.PersonalInfo.Gender;
switch (gt)
{
case PersonalInfo.RatioMagicGenderless: return(2);
case PersonalInfo.RatioMagicFemale: return(1);
case PersonalInfo.RatioMagicMale: return(0);
}
if (!pk.IsGenderValid())
{
return(EntityGender.GetFromPIDAndRatio(pk.PID, gt));
}
return(pk.Gender);
}
private static bool IsAzurillEdgeCaseM(PKM pk, uint nature, uint oldpid)
{
// check for Azurill evolution edge case... 75% F-M is now 50% F-M; was this a F->M bend?
int species = pk.Species;
if (species is not((int)Species.Marill or(int) Species.Azumarill))
{
return(false);
}
const int AzurillGenderRatio = 0xBF;
var gender = EntityGender.GetFromPIDAndRatio(pk.PID, AzurillGenderRatio);
if (gender != 1)
{
return(false);
}
var pid = PIDGenerator.GetPokeWalkerPID(pk.TID, pk.SID, nature, 1, AzurillGenderRatio);
return(pid == oldpid);
}
/// <summary>
/// Gets a random PID according to specifications.
/// </summary>
/// <param name="rnd">RNG to use</param>
/// <param name="species">National Dex ID</param>
/// <param name="gender">Current Gender</param>
/// <param name="origin">Origin Generation</param>
/// <param name="nature">Nature</param>
/// <param name="form">Form</param>
/// <param name="oldPID">Current PID</param>
/// <remarks>Used to retain ability bits.</remarks>
/// <returns>Rerolled PID.</returns>
public static uint GetRandomPID(Random rnd, int species, int gender, int origin, int nature, int form, uint oldPID)
{
// Gen6+ (and VC) PIDs do not tie PID to Nature/Gender/Ability
if (origin >= 24)
{
return(rnd.Rand32());
}
// Below logic handles Gen3-5.
// No need to get form specific entry, as Gen3-5 do not have that feature.
int gt = PKX.Personal[species].Gender;
bool g34 = origin <= 15;
uint abilBitVal = g34 ? oldPID & 0x0000_0001 : oldPID & 0x0001_0000;
bool g3unown = origin <= 5 && species == (int)Species.Unown;
bool singleGender = PersonalInfo.IsSingleGender(gt); // single gender, skip gender check
while (true) // Loop until we find a suitable PID
{
uint pid = rnd.Rand32();
// Gen 3/4: Nature derived from PID
if (g34 && pid % 25 != nature)
{
continue;
}
// Gen 3 Unown: Letter/form derived from PID
if (g3unown)
{
var pidLetter = GetUnownForm3(pid);
if (pidLetter != form)
{
continue;
}
}
else if (g34)
{
if (abilBitVal != (pid & 0x0000_0001)) // keep ability bits
{
continue;
}
}
else
{
if (abilBitVal != (pid & 0x0001_0000)) // keep ability bits
{
continue;
}
}
if (singleGender) // Set Gender(less)
{
return(pid); // PID can be anything
}
// Gen 3/4/5: Gender derived from PID
if (gender == EntityGender.GetFromPIDAndRatio(pid, gt))
{
return(pid);
}
}
}
