55 lines
No EOL
971 B
JavaScript
55 lines
No EOL
971 B
JavaScript
const app = new Vue({
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el: `#app`,
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data: {
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options: [],
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chosen: null,
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},
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computed: {
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totalWeight() {
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return this.options
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.filter(c => {
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try { parseInt(c.weight) }
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catch (e) { return false };
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return true;
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})
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.reduce(
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(p, c) => p + parseInt(c.weight),
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0
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);
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},
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},
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methods: {
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addOption() {
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this.options.push({
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name: ``,
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weight: ``,
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chance: ``,
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});
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},
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removeOption(i) {
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this.options.splice(i, 1);
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this.updateChanceValues();
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},
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pickAnOption() {
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let choice = Math.floor(Math.random() * this.totalWeight);
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let min = 0;
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for (const opt of this.options) {
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let max = min + parseInt(opt.weight);
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if (choice < max) {
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this.chosen = opt;
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return;
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};
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min = max;
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};
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},
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updateChanceValues() {
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for (const opt of this.options) {
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if (!opt.weight) {
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continue
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}
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opt.chance = Math.round(opt.weight / this.totalWeight * 100 );
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};
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},
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},
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}) |