91 lines
2.6 KiB
JavaScript
91 lines
2.6 KiB
JavaScript
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var pyra_scrambler = (function(circle) {
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var solv = new mathlib.Solver(4, 2, [[0, l, 360], [0, i, 2592]]);
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function l(a, c) {
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for (var e = [], j = 5517840, f = 0, b = 0; 5 > b; b++) {
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var h = k[5 - b],
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d = ~~(a / h),
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f = f ^ d;
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a = a - d * h;
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d = d << 2;
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e[b] = j >> d & 15;
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h = (1 << d) - 1;
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j = (j & h) + (j >> 4 & ~h)
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}
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0 == (f & 1) ? e[5] = j : (e[5] = e[4], e[4] = j);
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0 == c && circle(e, 0, 1, 3);
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1 == c && circle(e, 1, 2, 5);
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2 == c && circle(e, 0, 4, 2);
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3 == c && circle(e, 3, 5, 4);
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a = 0;
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j = 5517840;
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for (b = 0; 4 > b; b++) d = e[b] << 2,
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a *= 6 - b,
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a += j >> d & 15,
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j -= 1118480 << d;
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return a
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}
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function i(a, c) {
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var e, d, f;
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d = 0;
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var b = [],
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h = a;
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for (e = 0; 4 >= e; e++) b[e] = h & 1,
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h >>= 1,
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d ^= b[e];
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b[5] = d;
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for (e = 6; 9 >= e; e++) f = ~~(h / 3),
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d = h - 3 * f,
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h = f,
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b[e] = d;
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b[c + 6] = (b[c + 6] + 1) % 3;
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0 == c && (circle(b, 0, 1, 3), b[1] ^= 1, b[3] ^= 1);
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1 == c && (circle(b, 1, 2, 5), b[2] ^= 1, b[5] ^= 1);
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2 == c && (circle(b, 0, 4, 2), b[0] ^= 1, b[2] ^= 1);
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3 == c && (circle(b, 3, 5, 4), b[3] ^= 1, b[4] ^= 1);
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h = 0;
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for (e = 9; 6 <= e; e--) h = 3 * h + b[e];
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for (e = 4; 0 <= e; e--) h = 2 * h + b[e];
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return h
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}
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var k = [1, 1, 1, 3, 12, 60, 360];
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function getScramble(type) {
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var l = type == 'pyrso' ? 8 : 0;
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var len = 0;
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do {
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var st = mathlib.rn(360 * 2592 - 1) + 1;
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var i = st % 360;
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var g = ~~(st / 360);
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len = solv.search([i, g], 0).length;
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k = solv.toStr(solv.search([i, g], l), "ULRB", ["", "'"]) + ' ';
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for (g = 0; g < 4; g++) {
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i = mathlib.rn(3);
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if (i < 2) {
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k += "lrbu".charAt(g) + [" ", "' "][i] + " ";
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len++;
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}
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}
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} while (len < 6);
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return k
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}
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function getPyraWCAScramble(){
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return getScramble('pyrso');
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}
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function getPyraOptimalScramble(){
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return getScramble('pyro');
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}
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return {
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getPyraWCAScramble: getPyraWCAScramble,
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getPyraOptimalScramble: getPyraOptimalScramble
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}
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//scramble.reg(['pyro', 'pyrso'], getScramble);
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})(mathlib.circle);
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