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小編給大家分享一下js如何實(shí)現(xiàn)打字動(dòng)畫游戲,相信大部分人都還不怎么了解,因此分享這篇文章給大家參考一下,希望大家閱讀完這篇文章后大有收獲,下面讓我們一起去了解一下吧!
示例代碼如下:
<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <style> body,button{ margin: 0; padding: 0; } body { background: #333; } #game { width: 400px; margin: 0 auto; } #start { width: 80px; height: 40px; } span { margin: 20px; color: white; } .letter { position: absolute; color: yellow; font: bold 30px "Arial"; } </style> <script> window.onload= function () { var start = document.getElementById("start"); var scroll = document.getElementById("scroll"); var time = document.getElementById("time"); var g = 1 ;//Gravity var timenum = 0 ;//時(shí)間的計(jì)數(shù) var num = 0 ;//成績(jī)的計(jì)數(shù) var gameover = false ; var timeandtime = null; var letters = null ; //字母放在一個(gè)字符串里面,隨機(jī)選取 var str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; //點(diǎn)擊開始按鈕,字母會(huì)自動(dòng)生成,從頂部,以隨機(jī)速度落下 //用戶操作:按鈕對(duì)應(yīng)字母的按鈕,然后字母就會(huì)消失 //用戶沒(méi)有點(diǎn)擊到的按鈕到達(dá)底部以后會(huì)回到頂上重新落下; //用戶清除所有字母后,彈出對(duì)話框,顯示分?jǐn)?shù)和文字。 //封裝一個(gè)對(duì)象,里面包含獲取事件對(duì)象,頁(yè)面位置,清除冒泡,獲取事件目標(biāo)的兼容性方法 var eventUtil = { getEvent: function (event) { return event || window.event; }, getPageX: function (event) { return event.pageX || event.clientX + document.documentElement.scrollLeft; }, getPageY: function (event) { return event.pageY || event.clientY + document.documentElement.scrollTop; }, stopPropagation: function (event) { if (event.stopPropagation) { event.stopPropagation(); } else { event.cancelBubble = true; } }, getTarget: function (event) { return event.target || event.srcElement; } }; start.onclick= function () { for(var i = 0 ;i<26;i++){ new letter(); } letters = document.body.children;//將頁(yè)面中所有的div全部放入一個(gè)偽數(shù)組中,第一個(gè)除外,屬于game,因此遍歷從1開始 //在鍵盤上,按下對(duì)應(yīng)的字母鍵,字母會(huì)立即消失,同時(shí)分?jǐn)?shù)會(huì)增加,并且在上面重新生成; document.onkeydown = function (event) { var evt = eventUtil.getEvent(event); var keychar = String.fromCharCode(evt.keyCode);//將按下的字母鍵盤碼轉(zhuǎn)換成直接的大寫字母 for(var i = 1 ;i<letters.length;i++){ if(keychar===letters[i].innerHTML){ num++; scroll.innerHTML = num; document.body.removeChild(letters[i]); } } } timeandtime=setInterval(function () { timenum = timenum + 1 ; console.log(letters); if(letters.length==1){//當(dāng)偽數(shù)組的長(zhǎng)度只有一個(gè)時(shí),那么游戲就結(jié)束 gameover = true ; clearInterval(timeandtime); alert("用時(shí)"+timenum+"秒,再接再厲!突破10秒!"); } else { time.innerHTML = timenum; } },1000) } //封裝函數(shù) function letter(){ this.x=Math.random()*900+100; //設(shè)置位置在100-1000之間 this.y=0; this.speedY = Math.random()*4+1; //速度隨機(jī)設(shè)置在1-5之間 this.value = str[parseInt(Math.random()*25)]; //在26個(gè)字母中隨機(jī)生成一個(gè)字母 var letDiv = document.createElement("div"); letDiv.className = "letter"; letDiv.style.top = this.y+"px"; letDiv.style.left = this.x+ "px"; letDiv.innerHTML = this.value; document.body.appendChild(letDiv); //字母往下掉 var that = this ; this.timer=setInterval(function () { //leader = leader + step; that.y = that.y + that.speedY; if(that.y>=client().height-letDiv.offsetHeight){ that.y = 0; that.x = Math.random()*900+100; } if(!gameover){ letDiv.style.left = that.x + "px"; letDiv.style.top = that.y + "px"; } else { clearInterval(that.timer); } },15) } // 獲取可視窗口的寬度和高度窗,兼容性問(wèn)題 function client() { return { width: window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth || 0, height: window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight || 0 }; } } </script> </head> <body> <div id="game"> <button id="start">開始</button> <span>得分:<i id="scroll">0</i></span> <span>計(jì)時(shí):<i id="time">0</i></span> </div> </body> </html>
以上是“js如何實(shí)現(xiàn)打字動(dòng)畫游戲”這篇文章的所有內(nèi)容,感謝各位的閱讀!相信大家都有了一定的了解,希望分享的內(nèi)容對(duì)大家有所幫助,如果還想學(xué)習(xí)更多知識(shí),歡迎關(guān)注億速云行業(yè)資訊頻道!
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