创建锦标赛

编码水平：初级
时长：5 分钟
项目类型：使用自定义菜单实现自动化

目标

• 了解解决方案的功能。
• 了解 Apps 脚本服务在解决方案中的作用。
• 设置脚本。
• 运行脚本。

关于此解决方案

创建最多可容纳 64 人或团队的锦标赛对阵表。此解决方案会创建一个树状图，用于表示单淘汰赛。

运作方式

该脚本会遍历玩家列表，并确定赛程中需要多少轮。该脚本会设置赛程工作表的格式以创建树状图，并将参赛者的姓名添加到第一轮。

Apps 脚本服务

此解决方案使用以下服务：

电子表格服务 - 获取选手范围并创建比赛树状图。

前提条件

如需使用此示例，您需要满足以下前提条件：

• Google 账号（Google Workspace 账号可能需要管理员批准）。
• 可访问互联网的网络浏览器。

设置脚本

点击以下按钮，复制创建锦标赛对阵表示例电子表格。
制作副本

运行脚本

1. 在复制的电子表格中，依次点击对阵表生成器 > 创建对阵表。您可能需要刷新页面才能看到此自定义菜单。

2. 根据提示为脚本授权。 如果 OAuth 权限请求页面显示警告此应用未经过验证，请继续操作，依次选择高级 > 前往“{项目名称}”（不安全）。

3. 依次点击对阵表生成器 > 再次点击创建对阵表。

4. 切换到赛程标签页，查看赛事赛程。

查看代码

如需查看此解决方案的 Apps 脚本代码，请点击下方的查看源代码：

查看源代码

Code.gs

solutions/automations/bracket-maker/Code.js

在 GitHub 上查看

// To learn how to use this script, refer to the documentation:
// https://developers.google.com/apps-script/samples/automations/bracket-maker

/*
Copyright 2022 Google LLC

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

const RANGE_PLAYER1 = 'FirstPlayer';
const SHEET_PLAYERS = 'Players';
const SHEET_BRACKET = 'Bracket';
const CONNECTOR_WIDTH = 15;

/**
 * Adds a custom menu item to run the script.
 */
function onOpen() {
  let ss = SpreadsheetApp.getActiveSpreadsheet();
  ss.addMenu('Bracket maker',
             [{name: 'Create bracket', functionName: 'createBracket'}]);
}

/**
 * Creates the brackets based on the data provided on the players.
 */
function createBracket() {
  let ss = SpreadsheetApp.getActiveSpreadsheet();
  let rangePlayers = ss.getRangeByName(RANGE_PLAYER1);
  let sheetControl = ss.getSheetByName(SHEET_PLAYERS);
  let sheetResults = ss.getSheetByName(SHEET_BRACKET);

  // Gets the players from column A.  Assumes the entire column is filled.
  rangePlayers = rangePlayers.offset(0, 0, sheetControl.getMaxRows() -
      rangePlayers.getRowIndex() + 1, 1);
  let players = rangePlayers.getValues();

  // Figures out how many players there are by skipping the empty cells.
  let numPlayers = 0;
  for (let i = 0; i < players.length; i++) {
    if (!players[i][0] || players[i][0].length == 0) {
      break;
    }
    numPlayers++;
  }
  players = players.slice(0, numPlayers);

  // Provides some error checking in case there are too many or too few players/teams.
  if (numPlayers > 64) {
    Browser.msgBox('Sorry, this script can only create brackets for 64 or fewer players.');
    return; // Early exit
  }

  if (numPlayers < 3) {
    Browser.msgBox('Sorry, you must have at least 3 players.');
    return; // Early exit
  }

  // Clears the 'Bracket' sheet and all formatting.
  sheetResults.clear();

  let upperPower = Math.ceil(Math.log(numPlayers) / Math.log(2));

  // Calculates the number that is a power of 2 and lower than numPlayers.
  let countNodesUpperBound = Math.pow(2, upperPower);

  // Calculates the number that is a power of 2 and higher than numPlayers.
  let countNodesLowerBound = countNodesUpperBound / 2;

  // Determines the number of nodes that will not show in the 1st level.
  let countNodesHidden = numPlayers - countNodesLowerBound;

  // Enters the players for the 1st round.
  let currentPlayer = 0;
  for (let i = 0; i < countNodesLowerBound; i++) {
    if (i < countNodesHidden) {
      // Must be on the first level
      let rng = sheetResults.getRange(i * 4 + 1, 1);
      setBracketItem_(rng, players);
      setBracketItem_(rng.offset(2, 0, 1, 1), players);
      setConnector_(sheetResults, rng.offset(0, 1, 3, 1));
      setBracketItem_(rng.offset(1, 2, 1, 1));
    } else {
      // This player gets a bye.
      setBracketItem_(sheetResults.getRange(i * 4 + 2, 3), players);
    }
  }

  // Fills in the rest of the bracket.
  upperPower--;
  for (let i = 0; i < upperPower; i++) {
    let pow1 = Math.pow(2, i + 1);
    let pow2 = Math.pow(2, i + 2);
    let pow3 = Math.pow(2, i + 3);
    for (let j = 0; j < Math.pow(2, upperPower - i - 1); j++) {
      setBracketItem_(sheetResults.getRange((j * pow3) + pow2, i * 2 + 5));
      setConnector_(sheetResults, sheetResults.getRange((j * pow3) + pow1, i * 2 + 4, pow2 + 1, 1));
    }
  }
}

/**
 * Sets the value of an item in the bracket and the color.
 * @param {Range} rng The Spreadsheet Range.
 * @param {string[]} players The list of players.
 */
function setBracketItem_(rng, players) {
  if (players) {
    let rand = Math.ceil(Math.random() * players.length);
    rng.setValue(players.splice(rand - 1, 1)[0][0]);
  }
  rng.setBackgroundColor('yellow');
}

/**
 * Sets the color and width for connector cells.
 * @param {Sheet} sheet The spreadsheet to setup.
 * @param {Range} rng The spreadsheet range.
 */
function setConnector_(sheet, rng) {
  sheet.setColumnWidth(rng.getColumnIndex(), CONNECTOR_WIDTH);
  rng.setBackgroundColor('green');
}

贡献者

此示例由 Google 在 Google 开发者专家的帮助下维护。

后续步骤

• Google Workspace 中的自定义菜单
• 扩展 Google 表格