Question

我的代码中似乎无法使currentCost [0]或buildingA增加。

我的问题可能就在这里：

{
    document.getElementById("costA").innerHTML = currentCost[0]
    document.getElementById("amountA").innerHTML = buildingA
    document.getElementById("canPay").innerHTML = "You just bought another!"
    count.postMessage({action:'subtract', amount:currentCost[0], once:true});
    currentCost[0] = Math.ceiling(nlogn(currentCost[0]+1)) + 5
    buildingA = buildingA + 1
}

这是在if语句中。

我的目标是在购买建筑物时这样做，它会增加现有建筑物的数量，并根据预定的功能（即newPrice = oldPrice*log10(oldPrice)）增加价格。

然而，当我购买A楼时，价格将保持在15，并且它总是说我有0栋建筑物。

Answer 1

好的，在您的代码中有一行var nlogn = nlogn();，其中nlogn是一个变量，因此它提供TypeError: nlogn is not a function。更改变量名称。

将脚本放在<body>的末尾。

完整代码。

<!DOCTYPE html>
<head>
<title>Test incremental</title>

</head>

<body>
Your money: <output id="result"></output><br><br>

<button onclick="buyA();">Buy Building A</button><br>
Cost of next one: <output id="costA"></output><br>
<output id="canPay"></output><br>
You own <output id="amountA"></output> Building A's!

<script language="JavaScript">

var buyCost = 0;
var buyable = true;
var count;
var buildingModifier = 0;
var cost = 0;
var currentCost = [15, 25, 50, 100]
var money = 0;
//var nlogn = nlogn();

var buildingA = 0;

function beginGame() {
    if(typeof(Worker) !== "undefined") {
        if(typeof(count) == "undefined") {
            count = new Worker("counterWorker.js");
        }
        count.onmessage = function(event) {
            document.getElementById("result").innerHTML = event.data;
            money = event.data
        };
    } else {
        document.getElementById("result").innerHTML = "Sorry, your browser does not support Web Workers...";
    }
}

function nlogn(n) {
    return n * Math.log10(n);
}

function checkBuyable() {
    if(cost < money) {
        buyable = true;
    } else {
        buyable = false;
    }
}

var costA = document.createElement("costA")
var canPay = document.createElement("canPay")
var amountA = document.createElement("amountA")

function buyA() {
    cost = currentCost[0];
    checkBuyable();
    if (buyable == true) {
        document.getElementById("costA").innerHTML = currentCost[0]
        document.getElementById("amountA").innerHTML = buildingA
        document.getElementById("canPay").innerHTML = "You just bought another!"
        count.postMessage({action:'subtract', amount:currentCost[0], once:true});
        currentCost[0] = Math.ceil(nlogn(currentCost[0]+1)) + 5
        buildingA = buildingA + 1
        setTimeout(resetCanPay, 1000)
    } else {
        document.getElementById("canPay").innerHTML = "Too Expensive to buy another!"
        setTimeout(resetCanPay, 1000)
    }
    document.getElementById("costA").innerHTML = currentCost[0]
}

function resetCanPay() {
    document.getElementById("canPay").innerHTML = " "
}

currentCost[0] = Math.ceil(nlogn(currentCost[0]+1))
document.getElementById("costA").innerHTML = currentCost[0]

beginGame();

</script>

</body>

为什么我不能改变变量？

1 个答案: