ROBO24 - index conversion

const chunkSize = 32;
const chunkSizeSquare = chunkSize ** 2;

const toIndex = function (x, y, z) {
    return (y * chunkSizeSquare) + (z * chunkSize) + x;
};

const fromIndex2 = function (index) {
    let y = index >> 6;
    let z = (index - (y << 6)) >> 3;
    let x = (index - (y << 6) - (z << 3));
    return {x, y, z};
};

const fromIndex = function (index) {
    let y = index >> 10;
    let z = index % 1024 >> 5;
    let x = index % 32;
    return {x, y, z};
};


const index = toIndex(5, 6, 7);
console.log(index);
console.log(fromIndex(index));