js打字小游戏
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<html> <head> <meta charset="utf-8"> <style> #conatiner{ width:400px; height:500px; border:1px solid #eee; position: relative; } </style> </head> <body> <span>typing</span> <div> <span id="score">0</span>得分 </div> <div id="conatiner"> </div> <button id="start">开始游戏</button> </body> <script> var gamePad = { 1 : { speed : 100 }, 2 : { speed : 90 }, 3 : { speed : 70 }, 4 : { speed : 40 }, 5 : { speed : 20 } } var getRandom = function() { //随即一个97到122的字符; var charCode = 97+Math.floor(Math.random()*26); var speed = Math.ceil(Math.random()*4); return { code : String.fromCharCode(charCode), speed : speed, y : 0, x : Math.floor(Math.random()*390), } }; function game( n , score ) { var eConatiner = document.getElementById("conatiner"); var eScore = document.getElementById("score"); var showArr = []; //字符对象的列表 var shoted = 0; //随机一个字符对象, 包含了字符的运动速度,字符的值 //让showArr这个数组的数据运动; var run = function() { //随机生成字符对象 if(Math.random()>0.9) { var obj = getRandom(); showArr.push(obj); } //让元素运动 for(var i=0 ;i < showArr.length; i++) { showArr[i].y+=showArr[i].speed; if(showArr[i].y>500) { //showArr.splice(i,1); clear(); alert("游戏失败"); location.reload(); } } eConatiner.innerHTML = ""; //让元素添加到界面中; for(var i=0 ;i < showArr.length; i++) { var eSpan = document.createElement("span"); eSpan.style.position = "absolute"; eSpan.innerHTML = showArr[i].code; eSpan.style.left = showArr[i].x; eSpan.style.top = showArr[i].y; eConatiner.appendChild(eSpan); } } var keyup = function(ev) { for(var i=0 ;i < showArr.length; i++) { if(showArr[i].code === ev.key || String.fromCharCode(ev.keyCode).toLowerCase() == showArr[i].code) { showArr.splice(i,1); shoted++; eScore.innerHTML = shoted; if(shoted === score && gamePad[n+1] === undefined) { alert("少侠你好厉害, 你好快, 真的好快好快的"); }else if(shoted === score) { clear(); alert("进入下一关"); game(n+1, score+10) } return; } } } var clear = function() { clearInterval(game.timer); window.removeEventListener("keyup", keyup); } window.addEventListener("keyup", keyup); game.timer = setInterval(run,gamePad[n].speed); } document.getElementById("start").addEventListener("click", function() { game(1, 10); }); </script> </html>
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