32 lines
735 B
JavaScript
32 lines
735 B
JavaScript
import logger from "../logger.mjs"
|
|
import { getAcceptablePrompts } from "./db.mjs"
|
|
import config from "../config.mjs"
|
|
|
|
export default async function getNewPrompt() {
|
|
logger.trace("getNewPrompt called")
|
|
|
|
const getBiasedRng = (min, max, bias, influence) => {
|
|
const random = Math.random() * (max - min) + min
|
|
const mix = Math.random() * influence
|
|
return random * (1 - mix) + bias * mix
|
|
}
|
|
|
|
const randomEntry = (array) => {
|
|
const random = getBiasedRng(0, 1, config.rarityBias, 1)
|
|
const mix = Math.random()
|
|
return array[
|
|
parseInt(
|
|
array.length * random
|
|
)
|
|
]
|
|
}
|
|
|
|
return randomEntry(await getAcceptablePrompts())
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|