Question

我是firebase的新手，并且＆＃34;执着＃34;数据。我正在尝试制作一个石头剪刀游戏，可以让两个玩家登录并在其他玩家屏幕上显示对方的登录名。我也可以让第一个玩家选择他们的选择，然后在Firebase中将game.turn变量增加到2并在第二个玩家本地数据上增加（因为它会在控制台中将其记录下来）。但是，我的代码将不允许进入第二个if语句，其中game.turn == 2打开第二个玩家的按钮监听器（我知道这是因为它没有打印出该部分中的console.log ）。

我已经研究并尝试了几种不同的东西，从嵌套ifs到其他ifs将数据发送到Firebase太多次并创建无限循环。如果有人能帮助我，我会非常感激！我在这部分的代码如下（我试图省略我认为不需要的东西。我确实称这些函数启动它们，但我没有包含它。）：

choice: function() {
    var playersRef = game.dataInfo.child(game.players);
    var player1Ref = playersRef.child(game.player1);
    var player2Ref = playersRef.child(game.player2);

    // add turn to firebase
    game.turn++;
    game.dataInfo.update({
        turn: game.turn
    }); //  end firebase update             

    // if it is turn 1 then player 1 picks
    if (game.turn == 1) {

        // on click for player 1 choice
        $("#choices1").on('click', '.piece', function() {

            // updates the pick for player 1 in firebase
            player1Ref.update({pick: $(this).data('name')});
            $('#choices1').children().not(this).hide();
            game.turn++;

            // update turn to firebase
            game.dataInfo.update({
                turn: game.turn
            }); //  end firebase update

        }); // end of on click for player 1 choice

    } // end of if player 1 hasn't picked

    // if it is turn 2 then player 2 picks
    if (game.turn == 2) {
        console.log("I made it!");

        // on click for player 2 choice
        $('#choices2').on('click', '.piece', function() {

            // updates the pick for player 2 in firebase
            player2Ref.update({pick: $(this).data('name')});
            $('#choices2').children().not(this).hide();
            game.turn++;

            // update turn to firebase
            game.dataInfo.update({
                turn: game.turn
            }); //  end firebase update

        }); // end of click for player 2 choice 

    } // end if it is turn 2 then player 2 picks

}, // end of choice function

// updates local variables within game object from firebase
updateVar: function () {

    game.dataInfo.on("value", function(snapshot) {
        game.turn = snapshot.val().turn;
        console.log(game.turn);
        game.pick = snapshot.val().players[1].pick;
        console.log(game.pick);
        game.pick2 = snapshot.val().players[2].pick;
        console.log(game.pick2);
        game.wins = snapshot.val().players[1].wins;
        console.log(game.wins);
        game.losses = snapshot.val().players[1].losses;
        console.log(game.losses);
        game.ties = snapshot.val().players[1].ties;
        console.log(game.ties);
        game.wins2 = snapshot.val().players[2].wins;
        console.log(game.wins2);
        game.losses2 = snapshot.val().players[2].losses;
        console.log(game.losses2);
        game.ties2 = snapshot.val().players[2].ties;
        console.log(game.ties2);
    });

}, // end updateVar function

HTML：

<div class="container">

    <div class="row">
        <div class="col-sm-12">
            <h1>Rock, Paper, Scissors, Lizard, Spork:</h1>
        </div>
    </div>

    <div class="row">
        <div class="col-sm-12">
            <div id="nameForm">
                <form>
                    <div class="form">
                        <input type="text" placeholder="Name" id="name-input"><br>
                    </div>

                    <div class="form">
                        <input id="connect" type="submit" value="Submit">
                    </div>
                </form>
            </div>
        </div>
    </div>

    <div class="row">
        <div class="col-sm-4" id="player1">
            <p id="wait1">Waiting for player 1</p>
            <div id="choices1"></div>
            <p id="score1"></p>
        </div>

        <div class="col-sm-4" id="winner">

        </div>

        <div class="col-sm-4" id="player2">
            <p id="wait2">Waiting for player 2</p>
            <div id="choices2"></div>
            <p id="score2"></p>
        </div>
    </div>

    <div class="row">
        <div class="col-sm-6" id="disconnect1">

        </div>
        <div class="col-sm-6" id="disconnect2">

        </div>
    </div>

</div>

Answer 1

在第一个if语句之前，您正在增加game.turn：

// add turn to firebase
game.turn++;
game.dataInfo.update({
    turn: game.turn
}); //  end firebase update

如果输入函数时game.turn为2，它是否会增加到3，因此永远不会输入第二个if语句？

我建议你删除上面提到的game.turn++;行。

双人游戏中的第二个玩家无法进入if语句

1 个答案: