Puzzle Clock is a two-sided puzzle, each side presenting nine clocks. The aim of the puzzle is to set all nine clocks to 12 o'clock on both sides of the puzzle simultaneously.
The clocks can be rotated with four wheels, one at each corner of the puzzle. Four buttons in the middle of the puzzle have two states (in or out) that determine which set of clocks on the front and on the back are turned simultaneously by rotating a wheel of a corner.
Try to solve the puzzle as fast as you can to achieve the best time in the Game Center.
Reference: Rubik's Clock
clock.js
module.exports = class Clock {
constructor() {
this.clocks = Array(18).fill(0);
this.buttons = Array(4).fill(false);
}
push(button) {
if (button < 0 && button >= 4) {
return;
}
this.buttons[button] = !this.buttons[button];
return this;
}
turn(wheel, num) {
if (wheel < 0 || wheel >= 4) {
return;
}
let [b0, b1, b2, b3] = this.buttons;
const t0 = wheel === 2 || wheel == 3;
const t1 = wheel === 1 || wheel == 3;
const d = [];
for (let i = 0; i < 2; i++) {
d[0] = (!t0 && !t1) || ((b0 == b1) && !t0) || ((b0 == b2) && t0 && !t1) || ((b0 == b3) && t0 && t1);
d[1] = (((!t0 && !t1) || (b3 && t0 && t1)) && b0) || ((b3 || !t0) && b1 && t1) || (((!b0 && b1) || b0) && b2 && t0 && !t1);
d[2] = (!t0 && t1) || ((b1 == b0) && !t0) || ((b1 == b2) && t0 && !t1) || ((b1 == b3) && t1);
d[3] = ((!t1 || b1) && b0 && !t0) || ((!t1 || b3) && b2 && t0) || (((b1 && b2 && !t0) || (b0 && b3 && t0)) && t1);
d[4] = (((b3 && t1) || (b2 && !t1)) && t0) || (((b1 && t1) || (b0 && !t1)) && !t0);
d[5] = (((b3 && t0) || (b1 && !t0)) && t1) || (((b3 && !t1) || b1) && b0 && !t0) || (((b1 && !t1) || b3) && b2 && t0);
d[6] = (t0 && !t1) || ((b2 == b0) && !t0 && !t1) || ((b2 == b1) && !t0 && t1) || ((b2 == b3) && t0);
d[7] = ((b1 || t0) && b3 && t1) || (((b1 && !t0 && t1) || (t0 && !t1)) && b2) || ((b2 || b3) && b0 && !t0 && !t1);
d[8] = (t0 && t1) || ((b3 == b0) && !t0 && !t1) || ((b3 == b1) && t1) || ((b3 == b2) && t0);
for (let j = 0; j < 9; j++) {
if (d[j]) {
this.clocks[j + 9 * i] = (this.clocks[j + 9 * i] + num + 12) % 12;
}
}
num = -num;
b0 = !b0;
b1 = !b1;
b2 = !b2;
b3 = !b3;
}
return this;
}
show() {
let result = "";
for (let i = 0; i < 3; i++) {
for (let j = 0; j < 3; j++) {
result += (this.clocks[i * 3 + j] < 11 ? this.clocks[i * 3 + j] : "\u2016") + " ";
}
result += " ";
for (let j = 2; j >= 0; j--) {
result += (this.clocks[i * 3 + j] < 11 ? this.clocks[i * 3 + j] : "\u2016") + " ";
}
result += "\n";
if (i == 0) {
result += ` ${this.buttons[0] ? "*" : "o"} ${this.buttons[1] ? "*" : "o"}`;
result += ` ${this.buttons[1] ? "*" : "o"} ${this.buttons[0] ? "*" : "o"}`;
} else if (i == 1) {
result += ` ${this.buttons[2] ? "*" : "o"} ${this.buttons[3] ? "*" : "o"}`;
result += ` ${this.buttons[3] ? "*" : "o"} ${this.buttons[2] ? "*" : "o"}`;
}
result += "\n";
}
return result;
}
}Usage:
index.js
const Clock = require("./clock.js")
const clock = new Clock();
clock.push(0);
clock.turn(0, 1);
clock.show();
// 1 1 0 0 1 1
// * o o *
// 1 1 0 0 1 1
// o o o o
// 0 0 0 0 0 0