internal int getEPermSym()
{
if (EPermR2S != null)
{
return(EPermR2S[getEPerm()]);
}
if (temps == null)
{
temps = new CubieCube();
}
for (int k = 0; k < 16; k++)
{
EdgeConjugate(this, SymInv[k], temps);
int idx = Array.BinarySearch(EPermS2R, (char)temps.getEPerm());
if (idx >= 0)
{
return(idx << 4 | k);
}
}
return(0);
}
internal static void initPermSym2Raw()
{
CubieCube c = new CubieCube();
CubieCube d = new CubieCube();
int count = 0;
EPermR2S = new char[40320];
for (int i = 0; i < 40320; i++)
{
if (EPermR2S[i] != 0)
{
continue;
}
c.setEPerm(i);
for (int s = 0; s < 16; s++)
{
EdgeConjugate(c, s, d);
int idx = d.getEPerm();
if (idx == i)
{
SymStatePerm[count] |= (char)(1 << s);
}
int a = d.getU4Comb();
int b = d.getD4Comb() >> 9;
int m = 494 - (a & 0x1ff) + (a >> 9) * 70 + b * 1680;
MtoEPerm[m] = EPermR2S[idx] = (char)(count << 4 | s);
if (s == 0)
{
Perm2Comb[count] = (byte)(494 - (a & 0x1ff));
}
}
EPermS2R[count++] = (char)i;
}
if (count != 2768)
{
throw new Exception("Unexpected count value");
}
}