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pokemonCards.js
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pokemonCards.js
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/**
* Given you have a pack of 5 Pokemon cards
* And each card has a rarity
* When you simulate opening the pack
* Then print out the rarity for each card
*
* Rarities:
* - 94 Common cards (74%)
* - 81 Rare cards (21%)
* - 37 Epic cards (4%)
* - 33 Legendary cards (1%)
*
*/
const randomizer = (cards = 100) => Math.ceil(Math.random() * cards)
// const cardTypeRandomizer = (cards) => Math.ceil(Math.random() * cards)
// return card's rarity
function rarityLevel(num) {
if (num == 100) return "legendary"
if (num >= 96 && num < 100) return "epic"
if (num >= 75 && num < 96) return "rare"
if (num <= 74) return "common"
}
// return card's type after getting its rarity
function cardNumber(rarity) {
switch (rarity) {
case "common":
return randomizer(94)
case "rare":
return randomizer(81)
case "epic":
return randomizer(37)
case "legendary":
return randomizer(33)
}
}
// main function
function roll(times = 5) {
let cardList = []
for (let i = 0; i < times; i++) {
let rarityRoll = rarityLevel(randomizer())
let cardRoll = cardNumber(rarityRoll)
cardList.push({"rarity": rarityRoll, "card number": cardRoll})
}
console.table(cardList)
}
// test main function
// roll(100)
module.exports = { cardNumber, rarityLevel, randomizer }