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本文實例為大家分享了JS實現簡單隨機3D骰子的具體代碼,供大家參考,具體內容如下
描述:
JS——實現簡單的隨機3D骰子。
效果:
實現:
html文件:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> </head> <link rel="stylesheet" href="css/T1.css" > <body> <div class="dice"> <div class="face"> <div class="item1"></div> </div> <div class="face"> <div class="item2"></div> <div class="item2"></div> </div> <div class="face"> <div class="item3"></div> <div class="item3"></div> <div class="item3"></div> </div> <div class="face"> <div class="face_0"> <div class="item4"></div> <div class="item4"></div> </div> <div class="face_0"> <div class="item4"></div> <div class="item4"></div> </div> </div> <div class="face"> <div class="face_0"> <div class="item5"></div> <div class="item5"></div> </div> <div class="face_0"> <div class="item5"></div> </div> <div class="face_0"> <div class="item5"></div> <div class="item5"></div> </div> </div> <div class="face"> <div class="face_0"> <div class="item6"></div> <div class="item6"></div> </div> <div class="face_0"> <div class="item6"></div> <div class="item6"></div> </div> <div class="face_0"> <div class="item6"></div> <div class="item6"></div> </div> </div> </div> <p class="view"></p> <p> <button id="play">PLAY</button> </p> </body> <script src="js/T1.js"></script> </html>
css文件:
@keyframes rotate { to { transform: rotateX(360deg) rotateY(360deg); } } @keyframes domo{ 20%{ transform: rotateX(20deg); } 60%{ transform: rotateX(20deg) rotateY(200deg); } 100%{ transform: rotateX(100deg) rotateY(1000deg) rotateZ(-100deg); } } .dice { width: 300px; height: 300px; margin: 100px auto 200px; position: relative; transform-style: preserve-3d; /* animation: rotate 2s; */ animation-duration: 3s; animation-timing-function: linear; transition: all 1s; } .dice:hover{ animation: domo 5s linear 0s infinite alternate; } .dice .face { width: 100%; height: 100%; display: flex; position: absolute; left: 0; top: 0; border: 1px solid #000; background: rgb(253, 250, 250); border-radius: 20px; font-size: 100px; color: #fff; line-height: 300px; text-align: center; } .item1{ width: 100px; height: 100px; background: red; border-radius: 50%; } .item2{ width: 75px; height: 75px; background: blue; border-radius: 50%; } .item3{ width: 75px; height: 75px; background: blue; border-radius: 50%; } .item4{ width: 75px; height: 75px; background: rgb(240, 54, 54); border-radius: 50%; } .item5{ width: 75px; height: 75px; background: blue; border-radius: 50%; } .item6{ width: 75px; height: 75px; background: blue; border-radius: 50%; } .face:nth-child(1) { justify-content: center; align-items: center; transform: translateZ(150px); } .face:nth-child(2) { justify-content: space-around; align-items: center; transform: rotateX(-90deg) translateZ(150px); } .face:nth-child(3) { justify-content: space-around; align-items: center; flex-wrap: wrap; transform: rotateY(90deg) translateZ(150px); } .face:nth-child(4) { flex-wrap: wrap; justify-content: center; align-items: center; transform: rotateY(-90deg) translateZ(150px); } .face:nth-child(4) .face_0{ width: 300px; height: 75px; display: flex; justify-content: space-around; } .face:nth-child(5) { flex-wrap: wrap; justify-content: center; align-items: center; transform: rotateX(90deg) translateZ(150px); } .face:nth-child(5) .face_0{ width: 300px; height: 75px; display: flex; justify-content: space-around; } .face:nth-child(6) { flex-wrap: wrap; justify-content: center; align-items: center; transform: translateZ(-150px); } .face:nth-child(6) .face_0{ width: 300px; height: 75px; display: flex; justify-content: space-around; } p { text-align: center; }
js文件:
(function () { let odice = document.querySelector('.dice') let oview = document.querySelector('.view') let oplay = document.querySelector('#play') // 按鈕 oplay.onclick = playTheGame // 當骰子動畫執行后 odice.addEventListener('webkitAnimationEnd', () => { odice.style.animationName = 'none' // 更改動畫屬性,以待下一次動畫的正常執行 // 可能出現的情況集合 let _posible = [ { value: 1, x: 0, y: 0 }, { value: 6, x: 0, y: 180 }, { value: 3, x: 0, y: -90 }, { value: 4, x: 0, y: 90 }, { value: 5, x: -90, y: 0 }, { value: 2, x: 90, y: 0 }, ] // 準備抽取的隨機數 let _random = Math.floor(Math.random() * 6) // 抽取的隨機結果 let _result = _posible[_random] setTimeout(() => { // 瀏覽器反應不過來加過渡 // 讓骰子旋轉到正確的角度 odice.style.transform = ` rotateX(${ _result.x }deg) rotateY(${ _result.y }deg) ` renderView(_result.value) // 渲染視圖 }, 0); }) function playTheGame() { // 游戲方法 // 骰子轉起來 // 有的時候瀏覽器在連續使用js操作css的時候會出現問題(反應不過來),比如,效果不能正常顯示,此時可以嘗試利用setTimeout-0來將目標代碼放入到異步隊列中等待執行 // setTimeout(() => { odice.style.animationName = 'rotate' // }, 0); } function renderView(result) { // 渲染結果到頁面視圖 oview.innerHTML = '您此次的投擲結果為:' + result } })();
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