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Update index.js #1

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84 changes: 58 additions & 26 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -363,34 +363,66 @@ export default class Giiker extends EventEmitter {
};

const moves = [];
for (let i = 0; i < value.byteLength; i++) {
const move = value.getUint8(i);

const highNibble = move >> 4;
const lowNibble = move & 0b1111;

if (i < 4) {
state.cornerPositions.push(highNibble, lowNibble);
} else if (i < 8) {
state.cornerOrientations.push(highNibble, lowNibble);
} else if (i < 14) {
state.edgePositions.push(highNibble, lowNibble);
} else if (i < 16) {
state.edgeOrientations.push(!!(move & 0b10000000));
state.edgeOrientations.push(!!(move & 0b01000000));
state.edgeOrientations.push(!!(move & 0b00100000));
state.edgeOrientations.push(!!(move & 0b00010000));
if (i === 14) {
state.edgeOrientations.push(!!(move & 0b00001000));
state.edgeOrientations.push(!!(move & 0b00000100));
state.edgeOrientations.push(!!(move & 0b00000010));
state.edgeOrientations.push(!!(move & 0b00000001));
if (value.getUint8(18) == 0xa7) { // decrypt
var key = [176, 81, 104, 224, 86, 137, 237, 119, 38, 26, 193, 161, 210, 126, 150, 81, 93, 13, 236, 249, 89, 235, 88, 24, 113, 81, 214, 131, 130, 199, 2, 169, 39, 165, 171, 41];
var k = value.getUint8(19);
var k1 = k >> 4 & 0xf;
var k2 = k & 0xf;
for (let i = 0; i < value.byteLength; i++) {
const move = (value.getUint8(i) + key[i + k1] + key[i + k2]) & 0xff;
const highNibble = move >> 4;
const lowNibble = move & 0b1111;
if (i < 4) {
state.cornerPositions.push(highNibble, lowNibble);
} else if (i < 8) {
state.cornerOrientations.push(highNibble, lowNibble);
} else if (i < 14) {
state.edgePositions.push(highNibble, lowNibble);
} else if (i < 16) {
state.edgeOrientations.push(!!(move & 0b10000000));
state.edgeOrientations.push(!!(move & 0b01000000));
state.edgeOrientations.push(!!(move & 0b00100000));
state.edgeOrientations.push(!!(move & 0b00010000));
if (i === 14) {
state.edgeOrientations.push(!!(move & 0b00001000));
state.edgeOrientations.push(!!(move & 0b00000100));
state.edgeOrientations.push(!!(move & 0b00000010));
state.edgeOrientations.push(!!(move & 0b00000001));
}
} else {
moves.push(this._parseMove(highNibble, lowNibble));
}
}
}
else {
for (let i = 0; i < value.byteLength; i++) {
const move = value.getUint8(i);

const highNibble = move >> 4;
const lowNibble = move & 0b1111;

if (i < 4) {
state.cornerPositions.push(highNibble, lowNibble);
} else if (i < 8) {
state.cornerOrientations.push(highNibble, lowNibble);
} else if (i < 14) {
state.edgePositions.push(highNibble, lowNibble);
} else if (i < 16) {
state.edgeOrientations.push(!!(move & 0b10000000));
state.edgeOrientations.push(!!(move & 0b01000000));
state.edgeOrientations.push(!!(move & 0b00100000));
state.edgeOrientations.push(!!(move & 0b00010000));
if (i === 14) {
state.edgeOrientations.push(!!(move & 0b00001000));
state.edgeOrientations.push(!!(move & 0b00000100));
state.edgeOrientations.push(!!(move & 0b00000010));
state.edgeOrientations.push(!!(move & 0b00000001));
}
} else {
moves.push(this._parseMove(highNibble, lowNibble));
}
} else {
moves.push(this._parseMove(highNibble, lowNibble));
}
}

return { state, moves };
}

Expand Down Expand Up @@ -563,4 +595,4 @@ export default class Giiker extends EventEmitter {

return faces.join('');
}
}
}