如何使函数检查动画是否通过特定点

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好吧,所以我知道标题是废话了。我该如何检查障碍物是否经过某个点并因此而激活了功能?

这是我的代码到目前为止

function jump(){jumpDetect = false; document.getElementById( body)。classList.toggle( body); document.getElementById( beak)。classList.toggle( beak); document.getElementById( eyes)。classList.toggle( eyes); document.getElementById( pupils)。classList.toggle( pupils); document.getElementById( tail)。classList.toggle( tail); document.getElementById( snood)。classList.toggle( snood); document.getElementById( legRight)。classList.toggle( legRight); document.getElementById( legLeft)。classList.toggle( legLeft); setTimeout(()=> {document.getElementById( body)。classList.toggle( body); document.getElementById( beak)。classList.toggle( beak); document.getElementById( eyes ).classList.toggle( eyes); document.getElementById( pupils)。classList.toggle( pupils); document.getElementById( tail)。classList.toggle( tail);文档。 getElementById( snood)。classList.toggle( snood); document.getElementById( legRight)。classList.toggle( legRight); document.getElementById( legLeft)。classList.toggle( legLeft );},0); winDetection();} function winDetection(){jumpDetect = true; console.log(jumpDetect)}

.body {padding: 30px 30px;高度:35像素;宽度:5像素;边界半径:50%;背景颜色:棕色;职位:相对顶部:0px;动画名称:土耳其; animation-duration:1s;}。beak {padding:1px 1px;宽度:1px;高度:1px; border-top:10px纯透明;左边框:25px实线#ffc800;边框底部:5px透明的纯色;职位:相对左:40px;顶部:40px;动画名称:喙; animation-duration:1s;}。eyes {padding:10px 10px;宽度:10px;高度:10px;边界半径:50%;背景颜色:白色;职位:相对顶部:-80px;动画名称:眼睛; animation-duration:1s;}。学生{padding:5px 5px;宽度:3px;高度:3px;边界半径:50%;背景颜色:黑色;职位:相对顶部:-100px;动画名称:小学生; animation-duration:1s;}。snood {padding:5px 5px;宽度:1px;高度:10px;背景颜色:红色;边界半径:50%;职位:相对顶部:-254px;右:-38px;动画名称:snood; animation-duration:1s;}。legRight {padding:10px 1px;宽度:1px;高度:5px;背景颜色:黑色;职位:相对顶部:-219px;右:9px;变换:rotate(30deg);动画名称:legRight; animation-duration:1s;}。legLeft {padding:10px 1px;宽度:1px;高度:5px;背景颜色:黑色;职位:相对顶部:-242px;左:3px;变换:rotate(30deg);动画名称:legLeft; animation-duration:1s;}。obstacle {高度:100px;宽度:10px;背景颜色:黑色;动画:无限的3s障碍;职位:相对top:-460px;} body {background-color:lightblue;}

< html>< head< / head< body> < center> < br>< br>< br>< br> < div class = turkey> < div id = beak class =火鸡喙>< / div> < div id = body class = turkey body>< / div> < div id = eyes class = turkey eyes>< / div> < div id =学生 class =土耳其学生< / div> < style> .tail {width:20px;高度:150px;边界半径:50%;背景颜色:棕色;职位:相对顶部:-200px;右:59px;变换:rotate(-30deg);动画名称:tail;动画时间:1秒; }< / style> < div id = tail class = turkey tail id = tailId>< / div> < div id = snood class = turkey snood>< / div> < div id = legRight class = turkey legRight>< / div> < div id = legLeft class = turkey legLeft>< / div> < / div> < style> @keyframes土耳其{0%{顶部:0像素; } 50%{top:-200px; } 100%{top:0px; }} @keyframes喙{0%{顶部:40像素; } 50%{top:-160px; } 100%{top:40px; }} @keyframes的眼睛{0%{顶部:-80px; } 50%{顶部:-280px; } 100%{顶部:-80px; }} @keyframes学生{0%{上:-100px; } 50%{顶部:-300px; } 100%{top:-100px}} @keyframes snood {0%{top:-254px; } 50%{top:-450px; } 100%{顶部:-254px; }} @keyframes legRight {0%{top:-219px; } 50%{顶部:-419px; } 100%{顶部:-219px; }} @keyframes legLeft {0%{top:-242px; } 50%{顶部:-442px; } 100%{顶部:-242px; }} @keyframes tail {0%{top:-200px; } 50%{top:-400px; } 100%{顶部:-200px; }}< / style> < style> .button {高度:100像素;宽度:100px;背景颜色:红色;边界半径:50%;职位:相对顶部:-210px;溢出=滚动; }< / style> < div class = button onclick = jump()> < h1> JUMP< / h1> < / div> < div class = obstacle>< / div> < style> @keyframes障碍物{从{左起:1000px; }至{左:-870px; }}< / style> < / center>< / body>< / html>

顺便说一句,火鸡在其下喙。因此,要重申这个问题,我如何检测障碍物是否通过了火鸡并查看火鸡是否跳跃?谢谢

解决方案

您的代码真是一团糟。首先,不要混用html代码和css代码。每个都有它的位置。等等...

[edit] 奇怪的是,这个旧帖子似乎引起了新的兴趣... 随着我对JS的了解有所进步,我决定刷新此代码。

//检查浏览器正确的'animationend'nameconst EndAnimationEvent =(()=> {// IIFE(立即调用函数表达式)let el = document.createElement('fakeelement'),aKeys = {animation:' animationend'//标准事件名称,OAnimation:'oAnimationEnd'// Opera,MozAnimation:'animationend'// Mozilla,WebkitAnimation:'webkitAnimationEnd'// Safari,msAnimation:'msAnimationEnd'// MsIE};为(在aKeys){//检查是否(el.style [k]!== und定义){//正确的属性返回aKeys [k]; //浏览器用法}}})(); const myTurkey = document.getElementById(’the-turkey’),myButton = document.getElementById(’my-button’); myButton.onclick =()=> {myTurkey.classList.add('jump'); } myTurkey.addEventListener(EndAnimationEvent,()=> {myTurkey.classList.remove('jump');});

body {background-color:lightblue; } * {边距:0;填充:0;边界:0; }#the-turkey {位置:相对;宽度:160px;高度:160像素;边距:220px自动0自动; animation-duration:1s;}#the-turkey.jump {animation-name:turkey;}#the-turkey> div {position:absolute; display:block;}#corpus {top:0;左:40px;宽度:65px;边界半径:50%;背景颜色:棕色;高度:95像素;}#beak {左:100像素;顶部:20px;填充:1px 1px;宽度:1px;高度:1px; border-top:10px纯透明;左边框:25px实线#ffc800; border-bottom:5px solid transparent;}#eyes {width:26px;高度:30px;边界半径:50%;背景颜色:白色;职位:相对顶部:11px; left:77px;}#学生{宽度:13px;高度:13px;边界半径:50%;背景颜色:黑色;职位:相对顶部:20px; left:86px;}#snood {width:11px;高度:20px;背景颜色:红色;边界半径:50%;职位:相对顶部:33px; right:45px;}#tail {width:20px;高度:150px;边界半径:50%;背景色:深红色;职位:相对顶部:-55px;左:5px;变换:rotate(-30deg);}#legRight,#legLeft {宽度:3px;高度:22px;背景颜色:黑色;职位:相对顶部:90px;变换:rotate(30deg);}#legRight {左:58px; } #legLeft {左:68px; } @keyframes土耳其{0%{顶部:0像素; } 50%{top:-200px; } 100%{top:0px; }}#my-button {margin:10px auto 0 auto;高度:100px;宽度:100px;背景颜色:红色;边界半径:50%;溢出:隐藏;光标:指针;}#my-button> h2 {文本对齐:居中;宽度:100%;页边距:35px;光标:指针;}。obstacle {高度:100像素;宽度:10px;背景颜色:黑色;动画:无限的3s障碍;职位:相对顶部:-250像素;} @关键帧障碍物{从{左起:100%; }至{左:-870px; }}

< div id = the-turkey > < div id = corpus>< / div> < div id = beak>< / div> < div id = eyes>< / div> < div id = pupils>< / div> < div id = snood>< / div> < div id = tail>< / div> < div id = legRight>< / div> < div id = legLeft>< / div>< / div>< div id = my-button> < h2> JUMP< / h2>< / div>< div class = obstacle>< / div>

>

否则,这是之前使用过的JS ...

var myButton = document.getElementById('my-button') my_Turkey = document.getElementById('turkey'), DetectAnimationEnding ='webkitAnimationEnd oAnimationEnd oanimationend msAnimationEnd animationend'.split (''); DetectAnimationEnding .forEach(function(AnimEndEvent){ my_Turkey.addEventListener(AnimEndEvent,function(){ my_Turkey.className =; }); }); myButton.onclick = function(){ my_Turkey.className = jump; }

Ok so I know the title is nonsense buT how do i check if the obstacle passes a certain point and active a function because of It?

Here is my code so far

function jump() { jumpDetect = false; document.getElementById("body").classList.toggle("body"); document.getElementById("beak").classList.toggle("beak"); document.getElementById("eyes").classList.toggle("eyes"); document.getElementById("pupils").classList.toggle("pupils"); document.getElementById("tail").classList.toggle("tail"); document.getElementById("snood").classList.toggle("snood"); document.getElementById("legRight").classList.toggle("legRight"); document.getElementById("legLeft").classList.toggle("legLeft"); setTimeout(() => { document.getElementById("body").classList.toggle("body"); document.getElementById("beak").classList.toggle("beak"); document.getElementById("eyes").classList.toggle("eyes"); document.getElementById("pupils").classList.toggle("pupils"); document.getElementById("tail").classList.toggle("tail"); document.getElementById("snood").classList.toggle("snood"); document.getElementById("legRight").classList.toggle("legRight"); document.getElementById("legLeft").classList.toggle("legLeft"); }, 0); winDetection(); } function winDetection() { jumpDetect = true; console.log(jumpDetect) }

.body { padding: 30px 30px; height: 35px; width: 5px; border-radius: 50%; background-color: brown; position: relative; top: 0px; animation-name: turkey; animation-duration: 1s; } .beak { padding: 1px 1px; width: 1px; height: 1px; border-top: 10px solid transparent; border-left: 25px solid #ffc800; border-bottom: 5px solid transparent; position: relative; left: 40px; top: 40px; animation-name: beak; animation-duration: 1s; } .eyes { padding: 10px 10px; width: 10px; height: 10px; border-radius: 50%; background-color: white; position: relative; top: -80px; animation-name: eyes; animation-duration: 1s; } .pupils { padding: 5px 5px; width: 3px; height: 3px; border-radius: 50%; background-color: black; position: relative; top: -100px; animation-name: pupils; animation-duration: 1s; } .snood { padding: 5px 5px; width: 1px; height: 10px; background-color: red; border-radius: 50%; position: relative; top: -254px; right: -38px; animation-name: snood; animation-duration: 1s; } .legRight { padding: 10px 1px; width: 1px; height: 5px; background-color: black; position: relative; top: -219px; right: 9px; transform: rotate(30deg); animation-name: legRight; animation-duration: 1s; } .legLeft { padding: 10px 1px; width: 1px; height: 5px; background-color: black; position: relative; top: -242px; left: 3px; transform: rotate(30deg); animation-name: legLeft; animation-duration: 1s; } .obstacle { height: 100px; width: 10px; background-color: black; animation: obstacle 3s infinite; position: relative; top: -460px; } body { background-color: lightblue; }

<html> <head> </head> <body> <center> <br><br><br><br><br><br> <div class="turkey"> <div id="beak" class="turkey beak"></div> <div id="body" class="turkey body"></div> <div id="eyes" class="turkey eyes"></div> <div id="pupils" class="turkey pupils"></div> <style> .tail { width: 20px; height: 150px; border-radius: 50%; background-color: brown; position: relative; top: -200px; right: 59px; transform: rotate(-30deg); animation-name: tail; animation-duration: 1s; } </style> <div id="tail" class="turkey tail" id="tailId"></div> <div id="snood" class="turkey snood"></div> <div id="legRight" class="turkey legRight"></div> <div id="legLeft" class="turkey legLeft"></div> </div> <style> @keyframes turkey { 0% { top: 0px; } 50% { top: -200px; } 100% { top: 0px; } } @keyframes beak { 0% { top: 40px; } 50% { top: -160px; } 100% { top: 40px; } } @keyframes eyes { 0% { top: -80px; } 50% { top: -280px; } 100% { top: -80px; } } @keyframes pupils { 0% { top: -100px; } 50% { top: -300px; } 100% { top: -100px } } @keyframes snood { 0% { top: -254px; } 50% { top: -450px; } 100% { top: -254px; } } @keyframes legRight { 0% { top: -219px; } 50% { top: -419px; } 100% { top: -219px; } } @keyframes legLeft { 0% { top: -242px; } 50% { top: -442px; } 100% { top: -242px; } } @keyframes tail { 0% { top: -200px; } 50% { top: -400px; } 100% { top: -200px; } } </style> <style> .button { height: 100px; width: 100px; background-color: red; border-radius: 50%; position: relative; top: -210px; overflow=scroll; } </style> <div class="button" onclick="jump()"> <h1>JUMP</h1> </div> <div class="obstacle"></div> <style> @keyframes obstacle { from { left: 1000px; } to { left: -870px; } } </style> </center> </body> </html>

Btw a snood is the turkey's thing under its beak. So to restate the question, How do i detect if the obstacle passes the turkey and see if the turkey jumps or not? Thanks

解决方案

your code is a real mess. First, do not mix the html code and the css code. Each has its place. and more ... argh!

[edit] Strangely, this old post seems to arouse new interest ... As my knowledge in JS has progressed a bit, I decided to refresh this code.

// check for browser correct 'animationend' name const EndAnimationEvent = (()=>{ // IIFE (Immediately Invoked Function Expression) let el = document.createElement('fakeelement') , aKeys ={ animation : 'animationend' // standard event name , OAnimation : 'oAnimationEnd' // Opera , MozAnimation : 'animationend' // Mozilla , WebkitAnimation: 'webkitAnimationEnd' // Safari , msAnimation : 'msAnimationEnd' // MsIE }; for (let k in aKeys) { // check for if (el.style[k] !== undefined) { // correct propertie return aKeys[k]; // browser usage } } })(); const myTurkey = document.getElementById('the-turkey') , myButton = document.getElementById('my-button') ; myButton.onclick = ()=> { myTurkey.classList.add('jump'); } myTurkey.addEventListener( EndAnimationEvent, ()=> { myTurkey.classList.remove('jump'); });

body { background-color: lightblue; } * { margin: 0; padding: 0; border: 0; } #the-turkey { position: relative; width : 160px; height: 160px; margin: 220px auto 0 auto; animation-duration: 1s; } #the-turkey.jump { animation-name: turkey; } #the-turkey > div { position: absolute; display: block; } #corpus { top: 0; left :40px; width : 65px; border-radius: 50%; background-color: brown; height: 95px; } #beak { left: 100px; top: 20px; padding: 1px 1px; width: 1px; height: 1px; border-top: 10px solid transparent; border-left: 25px solid #ffc800; border-bottom: 5px solid transparent; } #eyes { width:26px; height: 30px; border-radius: 50%; background-color: white; position: relative; top: 11px; left:77px; } #pupils { width: 13px; height: 13px; border-radius: 50%; background-color: black; position: relative; top: 20px; left:86px; } #snood { width: 11px; height: 20px; background-color: red; border-radius: 50%; position: relative; top: 33px; right:45px; } #tail { width: 20px; height: 150px; border-radius: 50%; background-color: crimson; position: relative; top: -55px; left: 5px; transform: rotate(-30deg); } #legRight, #legLeft { width: 3px; height: 22px; background-color: black; position: relative; top: 90px; transform: rotate(30deg); } #legRight { left: 58px; } #legLeft { left: 68px; } @keyframes turkey { 0% { top: 0px; } 50% { top: -200px; } 100% { top: 0px; } } #my-button { margin: 10px auto 0 auto; height: 100px; width: 100px; background-color: red; border-radius: 50%; overflow: hidden; cursor: pointer; } #my-button>h2 { text-align: center; width: 100%; margin-top: 35px; cursor: pointer; } .obstacle { height: 100px; width: 10px; background-color: black; animation: obstacle 3s infinite; position: relative; top: -250px; } @keyframes obstacle { from { left: 100%; } to { left: -870px; } }

<div id="the-turkey"> <div id="corpus"></div> <div id="beak" ></div> <div id="eyes" ></div> <div id="pupils"></div> <div id="snood" ></div> <div id="tail" ></div> <div id="legRight" ></div> <div id="legLeft" ></div> </div> <div id="my-button" > <h2>JUMP</h2> </div> <div class="obstacle"></div>

Otherwise, here is the JS used before ...

var myButton = document.getElementById('my-button') my_Turkey = document.getElementById('the-turkey'), DetectAnimationEnding = 'webkitAnimationEnd oAnimationEnd oanimationend msAnimationEnd animationend'.split(' ') ; DetectAnimationEnding .forEach(function( AnimEndEvent ) { my_Turkey.addEventListener( AnimEndEvent, function() { my_Turkey.className = ""; }); }); myButton.onclick = function () { my_Turkey.className = "jump"; }

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如何使函数检查动画是否通过特定点

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