javascript - 重生= 1时如何停止法力增加和生命值增加

我可以轻松地在python http://prntscr.com/ns14y9中使用它，但是即时通讯最难在javascript上复制它。我希望我的马力和法力值仅在第一次重生购买后增加。

我尝试做一个if语句，但它似乎根本不起作用或im格式错误。

这是我的Javascript：

var rebirths = 0;
var HitPoints = 0;
var ManaPoints = 0;

 function buyRebirth() {
    var rebirthCost = Math.floor(10 * Math.pow(1.1, rebirths));
    if (cookies >= rebirthCost) {
        cookies = cookies - rebirthCost
        HitPoints = HitPoints + 10;
        ManaPoints = ManaPoints + 10;
        rebirths = rebirths + 1;
        document.getElementById("rebirths").innerHTML = rebirths;
        document.getElementById('cookies').innerHTML = cookies;
        document.getElementById("HitPoints").innerHTML = HitPoints;
        document.getElementById("ManaPoints").innerHTML = ManaPoints;
        document.getElementById("rebirthCost").innerHTML = rebirthCost;

这是我的html：

   </style>
                <span id="cookies">0</span>
                <br />
                <span id="rebirths">0</span>
                <br />
                <button onclick="cookieClick(1)">Click Me!</button>
                <br />
                Cost: 50 <button id="BigClickBtn"
onclick="cookieClick(50)">BigClick</button>
                <br />
                Cost: <span id="cursorCost">10</span> <button
id="cursorCostBtn" onclick="buyCursor()">Buy Cursor</button>
                <br />
                Cost: <span id="catCost">50</span> <button
onclick="buyCat()" id="catCostBtn">Buy Cat</button>
                <br />
                Cost: <span id="dogCost">100</span> <button
onclick="buyDog()" id="dogCostBtn">Buy Dog</button>
                <br />
                Cost: <span id="humanCost">200</span> <button
onclick="buyHuman()" id="humanCostBtn">Buy Human</button>
                <br />
                Cost: <span id="rebirthCost">10</span> <button
onclick="buyRebirth()" id="rebirthCostBtn">Rebirth</button>
                <br />
                Hp:<span id="HitPoints">0</span> Mp:<span
id="ManaPoints">0</span>

                <script type="text/javascript" src="main.js"></script>
            </body>

我预计在重生> 1之后，Hp和Mp将停止增加。但是每次我购买重生时，Hp和Mp的实际输出都会增加10。

最佳答案

不幸的是，您没有发布buyRebirth()函数的完整定义，但是显然您没有在将HitPoints和ManaPoints增加10之前检查是否有多个重生。

HitPoints = HitPoints + 10;
ManaPoints = ManaPoints + 10;

将其包装在简单的if条件中：

if (rebirths == 0) {
  HitPoints = HitPoints + 10;
  ManaPoints = ManaPoints + 10;
}
  rebirths = rebirths + 1;

下次您输入buyRebirth时，重生的值将大于0，因此条件rebirths == 0的计算结果为false。