✨ percent based bonus "entries"

[Nico105]

Mechanism based on https://stackoverflow.com/a/55671924/12985179

Note that this isn't totally bug tested by me, so it errors and bugs can occur.
i dont understand whats really going on myself, the logging results just approximately matched up

To activate percentages, look at the changed README

For testing:

function weighted_random(options) {
    var i;

    var weights = [];

    for (i = 0; i < options.length; i++) weights[i] = options[i].weight + (weights[i - 1] || 0);

    var random = Math.random() * weights[weights.length - 1];

    for (i = 0; i < weights.length; i++) if (weights[i] > random) break;

    return options[i].item;
}

var users = [
    { item: 'user1', weight: 200 }, // 100 % more than everyone else = ~ double wins
    { item: 'user2', weight: 100 },
    { item: 'user3', weight: 100 },
    { item: 'user4', weight: 100 },
    { item: 'user5', weight: 100 },
];

// for (let i = 6; i<66; i++ ) users.push({ item: 'user' + i, weight: 1 })
console.log(users.length);
const results = [];
for (let i = 0; i < 100; i++) results.push(weighted_random(users));
users.forEach(obj => console.log(obj.item + ' ' + results.filter(v => v === obj.item).length));

if someone has a better mechanism feel free to suggest cause I don't even totally understand this one 😆
it behaves about accurate to the increased percentages, but there is the random factor after all so its not exactly double or tripple the chance, but approximately it is, I think

and also suggestions for the usePercent option are welcome cause I didn't think much about it and also I didn't really wanted to make it a seperate giveaway option/make bonusEntries a object, that's why i choose "last object in the array"

[Dragonizedpizza]

I didn't understand what percent based bonus entries mean.

[Nico105]

I didn't understand what percent based bonus entries mean.

It's not really entries anymore, its more like increasedWinChance, have you looked at the changed README ?, i explained it there.
It just wouldn't make sense to make something seperated from the original entries because you can only use entries or win chance not both together

[Nico105]

Side thought: i guess we could make usePercent a option for the bonus entry objects, like cumulative and for those who don't use percentage we just set it to 0 in the rolling process?

= percentage is 0 but the user is 2 times in the array

idk if 0 will cause problems/the user gets left out, since this is just a thought

on the other hand, would this influence the results too much?

Lmk/i will maybe test it somewhen

[Lebyy]

@Nico105 Here's a better mechanism to calculate the percentage based "entries"

var arrayShuffle = function(array) {
   for( var i = 0, length = array.length, swap = 0, temp = ''; i < length; i++ ){
      swap        = Math.floor(Math.random() * (i + 1));
      temp        = array[swap];
      array[swap] = array[i];
      array[i]    = temp;
   }
   return array;
};

var percentageChance = function(values, chances) {
   for ( var i = 0, pool = []; i < chances.length; i++ ) {
      for ( var i2 = 0; i2 < chances[i]; i2++ ) {
         pool.push(i);
      }
   }
   return values[arrayShuffle(pool)['0']];
};

percentageChance(['user', 'user', 'user'], [number%, number%, number%]);

[typhoon11]

What is the outcome of this PR then? I needed percent-based entries for the people who vote for my bot. Please add this fast