Question

我正忙着制作红色或蓝色点击游戏，可在此处查看：http://www.ysk.co.za/red-blue 我的问题是我通过de var countdown仅在运行函数key()时停止的倒计时，直到它运行，倒计时如果超过12秒则进入负值我的Javascript是：

var i = 0;
var seconds = 0;
var countdown = 12;
setInterval(function () {
    $("#counter").html(countdown.toFixed(2));
}, 10);

function play() {
    $("#num").select();
}

function key(e) {
    var code = e.keyCode ? e.keyCode : e.charCode;
    var random = Math.random();
    if (random <= 0.5) {
        $("#RedBlue").css("background-color", "red")
    } else {
        $("#RedBlue").css("background-color", "blue")
    }
    if (code === 86) {
        $("#red").css("background", "#ff4e00");
        setTimeout(function () {
            $("#red").css("background-color", "red")
        }, 500);
        var color = "rgb(255, 0, 0)";
    } else if (code === 66) {
        $("#blue").css("background-color", "#006bff");
        setTimeout(function () {
            $("#blue").css("background-color", "blue")
        }, 500);
        color = "rgb(0, 0, 255)";
    }
    var score = i / seconds;
    var Endscore = (i - 1) / seconds;
    if ($("#RedBlue").css("background-color") != color) {
        alert("You clicked " + i + " times in " + seconds.toFixed(2) + " seconds. your score was                          " + score.toFixed(2));
        document.location.reload(true);
    } else if ($("#RedBlue").css("background-color") == color) {
        $("#score").html("");
        i++;
    }
    if (i == 1) {
        setInterval(function () {
            seconds += 0.01
        }, 10);
        setInterval(function () {
            countdown -= 0.01
        }, 10);
    };
    if (countdown < 0) {
        alert("You clicked " + (parseInt(i) - 1) + " times in 12 seconds. your score was           " + Endscore.toFixed(2));
        document.location.reload(true);
    }
}

我的HTML是：

<div id="game">
<div id="RedBlue"></div>
<div id="red" style="background:red;"></div>
<div id="blue" style="background:blue;"></div><div class="clear"></div>
<button onclick="play()">start</button><br>Enter "v" if the block is red or "b" if the block is blue
<input type="text" size="2" maxlength="1" id="num" onkeyup="key(event); this.select()" /> 
</div>
<div id="counter" style="font-family:monospace;font-size:100px;font-    weight:600;float:left;margin-left:40px;"></div>
<div id="score"></div>`

我该如何做到这一点，以便countdown == 1出现alert()时，如果你知道有什么更好的方法来停止和重置游戏，那么刷新页面会很棒。
非常感谢您的帮助

Answer 1

由于您正在更新setInterval中的时间，因此您应该在那里检查倒计时值是否已达到0

setInterval(function () {
        countdown -= 0.01;
        if (countdown < 0) {
            alert("You clicked " + (parseInt(i) - 1) + " times in 12 seconds. your score was           " + Endscore.toFixed(2));
            document.location.reload(true);
        }
    }, 10);

setInterval De递增倒计时不会停在Zero

1 个答案: