Day 30 - 結算 - iT 邦幫忙::一起幫忙解決難題，拯救 IT 人的一天

2022 iThome 鐵人賽

Modern Web

Spring Boot... 深不可測系列第 31 篇

Day 30 - 結算

14th鐵人賽 spring boot java modern web

mark0613

團隊那團名要叫什麼？

2022-10-16 00:00:37

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今日目標，結算結果。

結算

這邊就只差最後一步了~~

修改 GameStatus，加入 getAllPlayersHands()：

public HashMap<String, Object> getAllPlayersHands(String roomId) {
    HashMap<String, Object> result = new HashMap<>();
    Player[] players = this.game.get(roomId).getPlayers();
    for (Player player : players) {
        result.put(player.getName(), player.getHands());
    }
    return result;
}

修改 GameService 的 play()，定義結束遊戲的訊息，函數修改後的完整內容為：

public void play(String roomId) {
    Player[] players = gameStatus.getPlayers(roomId);
    int index = 0;
    for (int i=0; i<4; i++) {
        if (players[i].getName().equals(this.gameStatus.getCurrentPlayer(roomId))) {
            index = i;
            break;
        }
    }

    String currentPlayer;
    String previousPlayer;
    GameTimer timer = new GameTimer();
    this.gameTimerList.add(roomId, timer);
    try {
        Thread.sleep(5000);
    }
    catch(Exception e) {
        System.out.println(e.getMessage());
    }

    while (true) {
        previousPlayer = this.gameStatus.getPreviousPlayer(roomId);
        currentPlayer = players[index].getName();
        this.gameStatus.setCurrentPlayer(roomId, currentPlayer);
        if (currentPlayer.equals(previousPlayer)) {
            this.gameStatus.setPreviousPlayer(roomId, null);
            this.gameStatus.setPreviousPlayedCards(roomId, null);
        }

        timer.init(8);
        String finalCurrentPlayer = currentPlayer;
        String finalPreviousPlayer = previousPlayer;
        timer.countDown((n) -> {
            Map<String, Object> status = new HashMap<>();
            status.put("currentPlayer", finalCurrentPlayer);
            PlayedCards tmp = this.gameStatus.getPreviousPlayedCards(roomId);
            if (tmp == null) {
                status.put("previousPlayedCards", null);
            }
            else {
                status.put("previousPlayedCards", tmp.get());
            }
            status.put("timer", n);
            roomService.sendMessageToRoom(roomId, "/queue/game", status);

            if (n.equals("1")) {
                boolean isFirstPlayer = this.findFirstPlayer(roomId) != null;
                if (isFirstPlayer) {
                    ArrayList<Card> cards = new ArrayList<>();
                    cards.add(new Card(Suit.CLUB, Number.THREE));
                    this.autoPlay(roomId, finalCurrentPlayer, cards);
                    sendMyHands(finalCurrentPlayer);
                    sendHandsInfo(roomId);
                    return;
                }

                if (finalCurrentPlayer.equals(finalPreviousPlayer)) {
                    this.autoPlay(roomId, finalCurrentPlayer);
                    sendMyHands(finalCurrentPlayer);
                    sendHandsInfo(roomId);
                }
            }
        });
        timer.await(25);

        if (gameStatus.getHandsByPlayerName(currentPlayer).size() == 0) {
            Map<String, Object> endMessage = new HashMap<>();
            endMessage.put("winner", currentPlayer);
            endMessage.put("hands", this.gameStatus.getAllPlayersHands(roomId));
            roomService.sendMessageToRoom(roomId, "/queue/end", endMessage);

            this.gameStatus.remove(roomId);
            this.gameTimerList.remove(roomId);
            for (Player player : players) {
                this.userStatus.setUserReady(player.getName(), false);
            }
            return;
        }
        index = (index + 1) % 4;
    }
}

修改 game.css，加入這段：

.black-cover {
    position: absolute;
    background-color: #000;
    opacity: 0.5;
    height: 100%;
    width: 100%;
}

.end-window {
    position: absolute;
    margin: 65px 40px;
    height: 450px;
}

.end-hands .m-card {
    margin-top: 3px;
    height: 50px;
    width: 30px;
}

#button-end {
    position: absolute;
    top: 480px;
    left: 500px;
}

修改 game.html，加入小視窗顯示的部分，修改後的完整內容為：

<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml"
    xmlns:th="http://www.thymeleaf.org"
    xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
    layout:decorate="~{layout.html}"
>
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div layout:fragment="content" class="card game-window">
        <input id="my-username" type="hidden" th:value="${username}">

        <div class="timer text-center">..</div>

        <div class="other-hands-90 other-hands-left" id="user-3"></div>
        <div class="other-hands" id="user-4"></div>
        <div class="my-hands" id="user-1"></div>
        <div class="other-hands-90 other-hands-right" id="user-2"></div>

        <div class="card-type"></div>

        <div class="action">
            <button type="button" class="btn btn-outline-success btn-lg" id="button-play" onclick="play()" disabled>出牌</button>
            <button type="button" class="btn btn-outline-danger btn-lg" id="button-pass" onclick="pass()" disabled>PASS</button>
        </div>

        <div class="black-cover d-none"></div>
        <div class="end-window card-deck d-none"></div>
    </div>

    <div layout:fragment="js-and-css">
        <!-- websockets -->
        <script src="https://cdn.jsdelivr.net/npm/sockjs-client@1/dist/sockjs.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/stomp.js/2.3.3/stomp.js"
                integrity="sha512-tL4PIUsPy+Rks1go4kQG8M8/ItpRMvKnbBjQm4d2DQnFwgcBYRRN00QdyQnWSCwNMsoY/MfJY8nHp2CzlNdtZA=="
                crossorigin="anonymous"
                referrerpolicy="no-referrer"></script>

        <!-- custom -->
        <script type="text/javascript" th:src="@{/js/WebSockets.js}"></script>
        <script type="text/javascript" th:src="@{/js/game.js}"></script>
        <link th:href="@{/css/game.css}" rel="stylesheet">
    </div>
</body>
</html>

修改 game.js，加入 subscribeEnd()、endGame()：

function subscribeEnd() {
    websocket.subscribe("/user/queue/end", (response) => {
        response = JSON.parse(response.body);
        endGame(response);
    });
}

function endGame(data) {
    let winner = data.winner;
    delete data.hands[winner];

    // 產生 winner 的部分
    $(".end-window").empty();
    $(".end-window").append(`
        <div class="card" id="player-${winner}">
            <div class="card-body">
                <h5 class="card-title text-center">${winner}</h5>
                <br>
                <img class="card-img-top" src="https://picsum.photos/200/200" alt="Card image cap">
                <div class="end-hands">
                    <h3 class="text-danger text-center" style="margin-top: 10px;">Winner</h3>
                </div>
            </div>
        </div>
    `)

    // 產生其他人的部分
    for (let name in data.hands) {
        $(".end-window").append(`
            <div class="card" id="player-${name}">
                <div class="card-body">
                    <h5 class="card-title text-center">${name}</h5>
                    <br>
                    <img class="card-img-top" src="https://picsum.photos/200/200" alt="Card image cap">
                    <div class="end-hands"></div>
                </div>
            </div>
        `);
        data.hands[name].sort(compareByGeneral);
        data.hands[name].map((card) => {
            card = convertCard(card);
            let tmp = card.split("-");
            let color = (tmp[0] == SUITS.SPADE || tmp[0] == SUITS.CLUB) ? "#000000" : "#FF0000";
            $(`#player-${name} .end-hands`).append(`
                <div class="m-card text-center" style="color: ${color};">
                    <div>
                    ${tmp[0]}
                    <br>
                    ${tmp[1]}
                    </div>
                </div>
            `)
        })
    }

    // 加入回到房間的按鈕
    $(".end-window").append(`
        <button type="button" class="btn btn-success btn-lg" id="button-end">回房間</button>
    `);
    $("#button-end").click(() => {
        let roomId = window.location.href.split("/").slice(-1)[0];
        window.location.href = `/room/${roomId}`;
    })

    // 顯示後面的黑色遮罩
    $(".black-cover").removeClass("d-none");

    // 顯示結算頁面
    $(".end-window").removeClass("d-none");
}

心得

這次鐵人賽算是分了兩階段，第一階段是原本的專案開發，第二階段因為要寫文章，所以又開了新的專案在同步原本專案，剪剪貼貼難免會出問題，然後就花比較多的時間在 Debug... 如果還有哪裡有錯，還請各位大大不吝指教，我會盡快修復！
經過這次開發，我覺得以後不要再嘗試用網頁寫遊戲好了，這真的不是個好主意，雖然我在第一天就知道了...　不過在意料之外的是，我居然能連續寫完 30 天，畢竟我到第 10 天就開始覺得膩了，但還是硬著頭皮寫完，加上最近還有其他事情在忙，每天都在燃燒，不過完成鐵人賽還是滿有成就感的~~
小弟還留了些東西讓讀者自由發揮的空間，比如：房間和結算頁面的頭貼、錯誤訊息的反饋等，因為不是在這次功能裡特別重要的，所以就先跳過~~
最後，說下小弟在技術相關的疑問好了，希望有大大能解釋~~
1. Component 的實例，究竟還需不需要 Service 負責存取？
2. 不太確定為什麼每輪出牌都會有這麼高的延遲，是 WebSocket 的問題嗎？