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为 MotoGP 梦幻联赛计分

用你自己的计分规则把比赛结果转换为梦幻积分,并在每一轮之后为联赛中的队伍排名。

阅读约 10 分钟

梦幻游戏是赛事数据的最佳用途之一:玩家挑选车手,每个结果都会改变联赛排行榜。本指南用 JavaScript 按你可控的规则为联赛计分。

规则

每支梦幻队伍挑选三名车手。每一轮之后,每名车手获得:

事件梦幻积分
在比赛中获得的锦标赛积分每分 1 分
夺冠+10 奖励
登上领奖台(P1–P3)+5 奖励
未完赛−5

请把规则当作数据而不是代码,以便在赛季之间调整。

// scoring.js
export const RULES = Object.freeze({
  perPoint: 1,
  win: 10,
  podium: 5,
  dnf: -5,
});

/** Fantasy points for one rider's race result. Pure: same input, same output. */
export function scoreResult(result, rules = RULES) {
  let score = result.points * rules.perPoint;
  if (result.status === "FINISHED") {
    if (result.position === 1) score += rules.win;
    if (result.position <= 3) score += rules.podium;
  } else if (result.status === "DNF") {
    score += rules.dnf;
  }
  return score;
}

为一轮计分

GET /races/seasons/{year}/round/{round}/results 为每名车手返回一行,包含 position、points、status、rider_name 和稳定的 rider_id。按车手建立索引,并汇总每支队伍所选车手的得分:

// round.js
import { scoreResult } from "./scoring.js";

const HOST = "motogp-api-championship-data-statistics.p.rapidapi.com";
const headers = { "X-RapidAPI-Key": process.env.RAPIDAPI_KEY, "X-RapidAPI-Host": HOST };

async function get(path) {
  const res = await fetch(`https://${HOST}${path}`, { headers });
  if (!res.ok) throw new Error(`${path}: ${res.status}`);
  return (await res.json()).data;
}

export async function scoreRound(year, round, teams) {
  const results = await get(`/races/seasons/${year}/round/${round}/results?category=MOTOGP`);
  const byRider = new Map(results.map((r) => [r.rider_name, r]));

  return teams
    .map((team) => ({
      name: team.name,
      points: team.riders.reduce((sum, rider) => {
        const result = byRider.get(rider);
        return sum + (result ? scoreResult(result) : 0); // didn't start: 0
      }, 0),
    }))
    .sort((a, b) => b.points - a.points);
}
const league = [
  { name: "Late Brakers", riders: ["Marco Bezzecchi", "Raúl Fernández", "Fabio Di Giannantonio"] },
  { name: "Apex Hunters", riders: ["Marc Márquez", "Jorge Martín", "Pedro Acosta"] },
];

console.table(await scoreRound(2026, 1, league));

为便于阅读,本例按姓名匹配所选车手。在生产环境中,请在玩家组建队伍时,从 GET /riders/seasons/{year} 保存每位车手的 rider_id,并按 rider_id 为结果建立索引。

赛季总分

为每个已完赛的轮次计分并累加。尚未举行的轮次会返回空列表,所有人得 0 分:

export async function seasonTable(year, teams, lastRound) {
  const totals = new Map(teams.map((t) => [t.name, 0]));
  for (let round = 1; round <= lastRound; round++) {
    for (const { name, points } of await scoreRound(year, round, teams)) {
      totals.set(name, totals.get(name) + points);
    }
  }
  return [...totals].map(([name, points]) => ({ name, points })).sort((a, b) => b.points - a.points);
}

结果确定后,把每一轮的得分存入数据库。一轮比赛定局后分数不会再变,因此你只需为最新一轮调用 API。

候选名单与定价

  • 可选车手: GET /riders/seasons/{year}?category=MOTOGP 列出本赛季的发车阵容。
  • 车手价格: 根据当前锦标赛(GET /standings/seasons/{year}/riders)推算,让领跑者比落后者更贵。