116 lines
3.5 KiB
JavaScript
116 lines
3.5 KiB
JavaScript
const express = require("express");
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const router = express.Router();
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const db = require("../database/database");
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/* ================================
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Gewichtete Zufallsauswahl
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================================ */
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function weightedRandom(weights) {
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const total = weights.reduce((s, w) => s + w.weight, 0);
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let r = Math.random() * total;
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for (const entry of weights) {
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r -= entry.weight;
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if (r <= 0) return entry.maxLevel;
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}
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return weights[weights.length - 1].maxLevel;
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}
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/* ================================
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Gewichte je Spielerlevel
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================================ */
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function getWeights(playerLevel) {
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if (playerLevel < 10) return [
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{ maxLevel: 1, weight: 85 },
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{ maxLevel: 2, weight: 15 },
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];
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if (playerLevel < 20) return [
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{ maxLevel: 1, weight: 65 },
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{ maxLevel: 2, weight: 27 },
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{ maxLevel: 3, weight: 8 },
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];
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if (playerLevel < 30) return [
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{ maxLevel: 1, weight: 55 },
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{ maxLevel: 2, weight: 26 },
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{ maxLevel: 3, weight: 13 },
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{ maxLevel: 4, weight: 6 },
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];
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if (playerLevel < 40) return [
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{ maxLevel: 1, weight: 50 },
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{ maxLevel: 2, weight: 25 },
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{ maxLevel: 3, weight: 14 },
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{ maxLevel: 4, weight: 7 },
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{ maxLevel: 5, weight: 4 },
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];
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return [
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{ maxLevel: 1, weight: 47 },
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{ maxLevel: 2, weight: 25 },
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{ maxLevel: 3, weight: 15 },
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{ maxLevel: 4, weight: 8 },
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{ maxLevel: 5, weight: 4.5 },
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{ maxLevel: 6, weight: 0.5 },
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];
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}
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/* ================================
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GET /api/booster/cards
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Alle Karten inkl. Stats für Slot-Animation
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================================ */
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router.get("/booster/cards", async (req, res) => {
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if (!req.session?.user) return res.status(401).json({ error: "Nicht eingeloggt" });
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try {
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const [cards] = await db.query(
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"SELECT id, name, image, icon, max_level, rarity, attack, defends, cooldown FROM cards ORDER BY id"
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);
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res.json(cards);
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} catch (err) {
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console.error(err);
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res.status(500).json({ error: "DB Fehler" });
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}
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});
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/* ================================
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POST /api/booster/open
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5 gewichtete Zufallskarten inkl. Stats
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================================ */
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router.post("/booster/open", async (req, res) => {
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if (!req.session?.user) return res.status(401).json({ error: "Nicht eingeloggt" });
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const userId = req.session.user.id;
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try {
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const [[account]] = await db.query(
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"SELECT level FROM accounts WHERE id = ?", [userId]
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);
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const playerLevel = account?.level ?? 1;
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const weights = getWeights(playerLevel);
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const maxAllowed = Math.max(...weights.map(w => w.maxLevel));
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const [allCards] = await db.query(
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"SELECT id, name, image, icon, max_level, rarity, attack, defends, cooldown FROM cards WHERE max_level <= ?",
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[maxAllowed]
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);
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if (!allCards.length) return res.status(400).json({ error: "Keine Karten verfügbar" });
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const result = [];
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for (let i = 0; i < 5; i++) {
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const targetLevel = weightedRandom(weights);
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let pool = allCards.filter(c => c.max_level === targetLevel);
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if (!pool.length) {
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for (let fb = targetLevel - 1; fb >= 1; fb--) {
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pool = allCards.filter(c => c.max_level === fb);
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if (pool.length) break;
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}
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}
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if (!pool.length) pool = allCards;
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result.push(pool[Math.floor(Math.random() * pool.length)]);
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}
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res.json({ cards: result, playerLevel });
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} catch (err) {
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console.error(err);
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res.status(500).json({ error: "DB Fehler" });
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}
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});
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module.exports = router;
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