用JAVA寫一個雙人羽球(站位,發球權,計分)的規則

前言

最近參加公司的羽毛球社團，結果發現完全不懂雙人羽球的規則!!!
再球權換來換去，還有位置換來換去的過程中，我已經暈了~
還是清楚狀況 XD

於是，身為一個工程師，那就用工程師的方法來記住規則吧~~~
😜😜😜 解決方法 寫一個程式 實際了解規則XD

1. 先來定義 class -> BadmintonDoubles.java

主要會分成

1.兩支隊伍 teamA 跟 teamB
2.兩支隊伍 各自的分數 scoreA 跟 scoreB
3.發球權 server
4.比賽是否結束 isOver
5.四名參賽者 playerA, playerB, playerC, playerD

與諸多方法，如:拿到分數、球員是不是要換位置等等

話不多說直接上程式~~~

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package Badminton;

import org.apache.commons.lang3.StringUtils;

/*
 * 雙人羽球 defult 站位
 * 
 * ｜-------------
 * ｜     |      |
 * ｜  C  |  D   |（teamB)
 * ｜     |      |
 * ｜－－－－－－－
 * ｜     |      |
 * ｜  B  |  A   | (teamA, A發球)
 * ｜     |      |
 * ｜-------------
 * */
public class BadmintonDoubles {
	private String teamA;
	private String teamB;
	private int scoreA;
	private int scoreB;
	private String server;
	private boolean isOver;
	private Player playerA, playerB, playerC, playerD;

	public BadmintonDoubles(String teamA, String teamB, Player playerA, Player playerB, Player playerC,
			Player playerD) {
		this.teamA = teamA;
		this.teamB = teamB;
		this.scoreA = 0;
		this.scoreB = 0;
		this.server = StringUtils.join(playerA.getName(), "(", playerA.getPosition() + ")");
		this.isOver = false;
		this.playerA = playerA;
		this.playerB = playerB;
		this.playerC = playerC;
		this.playerD = playerD;
	}

	// 用來回傳發球人
	public String getServer() {
		return server;
	}

	// 回傳指定球隊的分數
	public int getScore(String team) {
		if (team.equals(teamA)) {
			return scoreA;
		} else if (team.equals(teamB)) {
			return scoreB;
		}
		return -1;
	}

	// 分數為偶數(ex:0、2、4、6、8、10)，則由站在右發球區的球員發球
	// 分數為奇數(ex:1、3、5、7、9)，則由站左邊發球區球員發球。
	// 傳入得分的team
	public String getPosition(String team) {
		// 偶數分 起始0
		if (getScore(team) % 2 == 0) {
			return "right side";
		} else {// 奇數分
			return "left side";
		}
	}

	// 傳入的隊伍增加一分，並檢查是否有隊伍已經贏了比賽
	public void scorePoint(String team) {
		if (team.equals(teamA)) {
			scoreA++;
		} else if (team.equals(teamB)) {
			scoreB++;
		}
		checkForWin();
	}

	// 用來回傳比賽是否已經結束
	public boolean isOver() {
		return isOver;
	}

	// 每局21分
	// 若雙方在將近終局時，同時拿到20-20的分數，則進入DEUCE規則（任一方需取得兩分領先，才算得勝。例如：22-20、23-21、24-22）
	private void checkForWin() {
		if (scoreA >= 20 && scoreB >= 20) {
			// DEUCE
			if (scoreA - scoreB >= 2) {
				System.out.println(teamA + " wins the match!");
				isOver = true;
			} else if (scoreB - scoreA >= 2) {
				System.out.println(teamB + " wins the match!");
				isOver = true;
			}
		} else {
			if (scoreA >= 21) {
				System.out.println(teamA + " wins the match!");
				isOver = true;
			}

			if (scoreB >= 21) {
				System.out.println(teamB + " wins the match!");
				isOver = true;
			}
		}
	}

	// 更換球員站位
	public void swapPositions(String team) {
		if (team.equals(teamA)) {
			String positionTemp = playerA.getPosition();
			playerA.setPosition(playerB.getPosition());
			playerB.setPosition(positionTemp);
		} else if (team.equals(teamB)) {
			String positionTemp = playerC.getPosition();
			playerC.setPosition(playerD.getPosition());
			playerD.setPosition(positionTemp);
		}
	}

	// 傳入：得分的隊 ＆ 此次發球人
	public String winOnePoint(String team, String playerName) {
		// 此隊得分
		scorePoint(team);
		System.out.println(getNowScore());

		// A隊得分 , 看現在比數 由A得誰發球
		if (team.equals(teamA)) {
			// 發球方得分 才換邊
			if (team.equals(teamA) && StringUtils.equalsAny(playerName, playerA.getName(), playerB.getName())) {
				swapPositions(team);
			}
			if (getPosition("teamA").equals(playerA.getPosition())) {
				return "發球權:" + teamA + ", 發球邊:" + getPosition(team) + ", 發球者:" + playerA.getName();
			} else {
				return "發球權:" + teamA + ", 發球邊:" + getPosition(team) + ", 發球者:" + playerB.getName();
			}
		} else {
			// Ｂ隊得分 看現在比數 由Ｂ得誰發球
			// 發球方得分 才換邊
			if (team.equals(teamB) && StringUtils.equalsAny(playerName, playerC.getName(), playerD.getName())) {
				swapPositions(team);
			}
			if (getPosition("teamB").equals(playerC.getPosition())) {
				return "發球權:" + teamB + ", 發球邊:" + getPosition(team) + ", 發球者:" + playerC.getName();
			} else {
				return "發球權:" + teamB + ", 發球邊:" + getPosition(team) + ", 發球者:" + playerD.getName();
			}
		}
	}

	public String getNowScore() {
		return "目前比數: (A)" + getScore("teamA") + ":" + getScore("teamB") + "(B)";

	}
}

class Player {
	private String name;
	private String position;

	public Player(String name, String position) {
		this.name = name;
		this.position = position;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public void setPosition(String position) {
		this.position = position;
	}

	public String getPosition() {
		return position;
	}

}

2. 然後寫main方法測試

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package Badminton;

public class TestGame {
	public static void main(String[] args) {
		BadmintonDoubles game = new BadmintonDoubles("teamA", "teamB", 
				new Player("A","right side"), new Player("B","left side"), 
				new Player("C","right side"), new Player("D","left side"));
		
		System.out.println(game.getNowScore());

		//開局
		System.out.println("team A 開局發球員: " + game.getServer());
		System.out.println("--------start--------");

		//開局發球員得分
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		
		System.out.println(game.winOnePoint("teamB","A"));
		System.out.println("----------------");
		
		System.out.println(game.winOnePoint("teamA","D"));
		System.out.println("----------------");
		
		System.out.println(game.winOnePoint("teamB","B"));
		System.out.println("----------------");
		
		System.out.println(game.winOnePoint("teamB","C"));
		
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","C"));
		
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		
		//以下測試
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));

		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamB","C"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
		System.out.println("----------------");
		System.out.println(game.winOnePoint("teamA","A"));
	}
}

3. 結果如下

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目前比數: (A)0:0(B)
team A 開局發球員: A(right side)
--------start--------
目前比數: (A)1:0(B)
發球權:teamA, 發球邊:left side, 發球者:A
----------------
目前比數: (A)1:1(B)
發球權:teamB, 發球邊:left side, 發球者:D
----------------
目前比數: (A)2:1(B)
發球權:teamA, 發球邊:right side, 發球者:B
----------------
目前比數: (A)2:2(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)2:3(B)
發球權:teamB, 發球邊:left side, 發球者:C
----------------
目前比數: (A)3:3(B)
發球權:teamA, 發球邊:left side, 發球者:A
----------------
目前比數: (A)4:3(B)
發球權:teamA, 發球邊:right side, 發球者:A
----------------
目前比數: (A)5:3(B)
發球權:teamA, 發球邊:left side, 發球者:A
----------------
目前比數: (A)6:3(B)
發球權:teamA, 發球邊:right side, 發球者:A
----------------
目前比數: (A)7:3(B)
發球權:teamA, 發球邊:left side, 發球者:A
----------------
目前比數: (A)8:3(B)
發球權:teamA, 發球邊:right side, 發球者:A
----------------
目前比數: (A)9:3(B)
發球權:teamA, 發球邊:left side, 發球者:A
----------------
目前比數: (A)10:3(B)
發球權:teamA, 發球邊:right side, 發球者:A
----------------
目前比數: (A)11:3(B)
發球權:teamA, 發球邊:left side, 發球者:A
----------------
目前比數: (A)12:3(B)
發球權:teamA, 發球邊:right side, 發球者:A
----------------
目前比數: (A)13:3(B)
發球權:teamA, 發球邊:left side, 發球者:A
----------------
目前比數: (A)14:3(B)
發球權:teamA, 發球邊:right side, 發球者:A
----------------
目前比數: (A)15:3(B)
發球權:teamA, 發球邊:left side, 發球者:A
----------------
目前比數: (A)16:3(B)
發球權:teamA, 發球邊:right side, 發球者:A
----------------
目前比數: (A)17:3(B)
發球權:teamA, 發球邊:left side, 發球者:A
----------------
目前比數: (A)18:3(B)
發球權:teamA, 發球邊:right side, 發球者:A
----------------
目前比數: (A)19:3(B)
發球權:teamA, 發球邊:left side, 發球者:A
----------------
目前比數: (A)20:3(B)
發球權:teamA, 發球邊:right side, 發球者:A
----------------
目前比數: (A)20:4(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)20:5(B)
發球權:teamB, 發球邊:left side, 發球者:C
----------------
目前比數: (A)20:6(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)20:7(B)
發球權:teamB, 發球邊:left side, 發球者:C
----------------
目前比數: (A)20:8(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)20:9(B)
發球權:teamB, 發球邊:left side, 發球者:C
----------------
目前比數: (A)20:10(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)20:11(B)
發球權:teamB, 發球邊:left side, 發球者:C
----------------
目前比數: (A)20:12(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)20:13(B)
發球權:teamB, 發球邊:left side, 發球者:C
----------------
目前比數: (A)20:14(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)20:15(B)
發球權:teamB, 發球邊:left side, 發球者:C
----------------
目前比數: (A)20:16(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)20:17(B)
發球權:teamB, 發球邊:left side, 發球者:C
----------------
目前比數: (A)20:18(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)20:19(B)
發球權:teamB, 發球邊:left side, 發球者:C
----------------
目前比數: (A)20:20(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)20:21(B)
發球權:teamB, 發球邊:left side, 發球者:C
----------------
目前比數: (A)21:21(B)
發球權:teamA, 發球邊:left side, 發球者:B
----------------
目前比數: (A)22:21(B)
發球權:teamA, 發球邊:right side, 發球者:B
----------------
目前比數: (A)22:22(B)
發球權:teamB, 發球邊:right side, 發球者:C
----------------
目前比數: (A)23:22(B)
發球權:teamA, 發球邊:left side, 發球者:B
----------------
teamA wins the match!
目前比數: (A)24:22(B)
發球權:teamA, 發球邊:right side, 發球者:B

這樣就記住規則拉!!! 開心灑花 ~~~

規則參考：（雙打發球說明範例）
1.https://www.victorsport.com.tw/badmintonaz/5072

Tech
#JAVA
用JAVA寫一個雙人羽球(站位,發球權,計分)的規則
http://example.com/2023/01/17/用JAVA寫一個雙人羽球(站位,發球權,計分)的規則/
作者
Tayli Kuan
發布於
2023年1月17日
許可協議