所以这就是我到目前为止所拥有的。我是javascript的新手。如何在div中按顺序制作这些骰子?例如仅在显示第一个随机数之后才显示下一个随机数。
<html>
<style>
.numdiv{
height: 400px;
width: 200px;
border:solid 1px green;
float: left
}
</style>
<head>
<script>
function rollDice(){
var number1 = document.getElementById("number1");
var number2 = document.getElementById("number2");
var number3 = document.getElementById("number3");
var status = document.getElementById("status");
var d1 = Math.floor(Math.random() * 6) + 1;
var d2 = Math.floor(Math.random() * 6) + 1;
var d3 = Math.floor(Math.random() * 6) + 1;
var diceTotal = d1 + d2 + d3;
number1.innerHTML = d1;
number2.innerHTML = d2;
number3.innerHTML = d3;
status.innerHTML = "You rolled "+diceTotal+".";
if(diceTotal == 15){
status.innerHTML += "You Win!!";
}
}
</script>
</head>
<body>
<table>
<tr>
<td>
<div class="numdiv" id="number1">
0</div>
<div class="numdiv" id="number2">
0</div>
<div class="numdiv" id="number3">
0</div>
</td>
</tr>
<tr>
<td><button onclick="rollDice()"/>Generate Number</button></td></tr>
<tr>
<td><span id="status">0</span></td></tr>
</table>
</body>
</html>
答案 0 :(得分:2)
你可以使用setTimeout()
method来延迟执行一个函数,这样就可以一次滚动一个骰子:
function rollDice(){
var status = document.getElementById("status");
var nums = document.querySelectorAll(".numdiv");
var diceTotal = 0;
var current;
for (current = 0; current < nums.length; current++) {
nums[current].innerHTML = "?";
}
current = 0;
status.innerHTML = "Rolling...";
function rollNext() {
currentRoll = Math.floor(Math.random() * 6) + 1;
nums[current].innerHTML = currentRoll;
diceTotal += currentRoll;
current++;
if (current < nums.length) {
setTimeout(rollNext, 1000);
} else {
status.innerHTML = "You rolled " + diceTotal + ".";
if(diceTotal == 15){
status.innerHTML += "You Win!!";
}
}
}
setTimeout(rollNext, 1000);
}
.numdiv { height: 30px; width: 30px; border:solid 1px green; float: left; margin: 10px }
<table>
<tr>
<td>
<div class="numdiv" id="number1"></div>
<div class="numdiv" id="number2"></div>
<div class="numdiv" id="number3"></div>
</td>
</tr>
<tr>
<td><button onclick="rollDice()"/>Generate Number</button></td></tr>
<tr>
<td><span id="status">0</span></td>
</tr>
</table>
另请注意,我已删除了单独的number1
,number2
和number3
变量,而是使用单个变量num
来引用所有变量的列表.numDiv
div元素。这样你就可以在不改变JS的情况下轻松改变想要使用的骰子数量(你只需要添加或删除.numDiv
元素)。
编辑:当我发布上述内容时,您明确表示您希望用户按下每个模具的按钮,而不是自动滚动所有三个模具。所以我想,也许类似于以下内容,保持一个计数器和变量声明在外的函数:
var statusSpan = document.getElementById("status");
var nums = document.querySelectorAll(".numdiv");
var diceTotal;
var current = 0;
function rollDice(){
if (current === 0) { // reset display
for (var i = 0; i < nums.length; i++)
nums[i].innerHTML = "?";
diceTotal = 0;
}
currentRoll = Math.floor(Math.random() * 6) + 1;
nums[current].innerHTML = currentRoll;
diceTotal += currentRoll;
if (++current < nums.length) {
statusSpan.innerHTML = "Current total: " + diceTotal + ".";
} else {
statusSpan.innerHTML = "You rolled " + diceTotal + ".";
if(diceTotal == 15){
statusSpan.innerHTML += "You Win!!";
}
current = 0;
}
}
.numdiv { height: 30px; width: 30px; border:solid 1px green; float: left; margin: 10px; text-align: center }
<table>
<tr>
<td>
<div class="numdiv" id="number1"></div>
<div class="numdiv" id="number2"></div>
<div class="numdiv" id="number3"></div>
</td>
</tr>
<tr>
<td><button onclick="rollDice()">Roll next die</button></td></tr>
<tr>
<td><span id="status">Ready to roll?</span></td>
</tr>
</table>
答案 1 :(得分:1)
创建一个从rollDice函数外部开始的计数器变量,每次单击该变量,然后将计数器增加1。然后你需要用这个替换所有的数字变量:
var number = document.getElementById("number" + counter);
我想你知道从哪里开始。如果您需要更多指导,请告诉我们!
答案 2 :(得分:0)
以您现有的逻辑为基础,如果您希望每次用户点击时显示1,那么替代方法....
var totalIter = 0;//global var which is set to increments on each click
var diceTotal = 0;
function rollDice() {
totalIter = totalIter + 1; //increment by 1
//Existing logic from your script
var ele = document.getElementById("number" + totalIter);
var d1 = Math.floor(Math.random() * 6) + 1;
var status = document.getElementById("status");
diceTotal = diceTotal + d1;
ele.innerHTML = d1;
status.innerHTML = "You rolled " + diceTotal + ".";
if (diceTotal == 15) {
status.innerHTML += "You Win!!";
}
}