static void initPermSym2Raw() {
CubieCube c = new CubieCube();
CubieCube d = new CubieCube();
int[] occ = new int[40320 / 32];
int count = 0;
for (int i = 0; i < 40320 / 32; occ[i++] = 0) ;
EPermR2S = new char[40320];
for (int i = 0; i < 40320; i++) {
if ((occ[i >> 5] & (1 << (i & 0x1f))) == 0) {
c.setEPerm(i);
for (int s = 0; s < 16; s++) {
EdgeConjugate(c, s, d);
int idx = d.getEPerm();
if (idx == i) {
SymStatePerm[count] |= 1 << s;
}
occ[idx >> 5] |= 1 << (idx & 0x1f);
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);
}
EPermS2R[count++] = (char) i;
}
}
}
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 = Util.binarySearch(EPermS2R, temps.getEPerm());
if (idx != 0xffff) {
return (idx << 4) | k;
}
}
return 0;
}
int getFlipSym() {
if (FlipR2S != null) {
return FlipR2S[getFlip()];
}
if (temps == null) {
temps = new CubieCube();
}
for (int k = 0; k < 16; k += 2) {
EdgeConjugate(this, SymInv[k], temps);
int idx = Util.binarySearch(FlipS2R, temps.getFlip());
if (idx != 0xffff) {
return (idx << 3) | (k >> 1);
}
}
return 0;
}
static void initFlipSym2Raw() {
CubieCube c = new CubieCube();
CubieCube d = new CubieCube();
int[] occ = new int[2048 >> 5];
int count = 0;
for (int i = 0; i < 2048 >> 5; occ[i++] = 0) ;
FlipR2S = new char[2048];
for (int i = 0; i < 2048; i++) {
if ((occ[i >> 5] & (1 << (i & 0x1f))) == 0) {
c.setFlip(i);
for (int s = 0; s < 16; s += 2) {
EdgeConjugate(c, s, d);
int idx = d.getFlip();
if (idx == i) {
SymStateFlip[count] |= 1 << (s >> 1);
}
occ[idx >> 5] |= 1 << (idx & 0x1f);
FlipR2S[idx] = (char) ((count << 3) | (s >> 1));
}
FlipS2R[count++] = (char) i;
}
}
}
