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move random functions to rng class, fix some imports

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Zutatensuppe 2021-05-17 01:12:39 +02:00
parent 07c08019f5
commit 432e1b6668
16 changed files with 71 additions and 80 deletions
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32
src/common/Util.ts
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@ -27,35 +27,6 @@ export const logger = (...pre: Array<any>) => {
// get a unique id
export const uniqId = () => Date.now().toString(36) + Math.random().toString(36).substring(2)
// get a random int between min and max (inclusive)
export const randomInt = (
rng: Rng,
min: number,
max: number,
) => rng.random(min, max)
// get one random item from the given array
export const choice = (
rng: Rng,
array: Array<any>
) => array[randomInt(rng, 0, array.length - 1)]
// return a shuffled (shallow) copy of the given array
export const shuffle = (
rng: Rng,
array: Array<any>
) => {
const arr = array.slice()
for (let i = 0; i <= arr.length - 2; i++)
{
const j = randomInt(rng, i, arr.length -1);
const tmp = arr[i];
arr[i] = arr[j];
arr[j] = tmp;
}
return arr
}
function encodeShape(data: any): number {
if (typeof data === 'number') {
return data
@ -196,9 +167,6 @@ const hash = (str: string): number => {
export default {
hash,
uniqId,
randomInt,
choice,
shuffle,
encodeShape,
decodeShape,