js 行走的小女孩 面向对象
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> * { margin:0; padding:0; } html,body { height:100%; } div.girl { width:79px; height:108px; background:url(aisidier.png) 0 -216px no-repeat; position:absolute; } div.end { border:2px solid #000; position:absolute; left:1000px; top:0; height:100%; } </style> </head> <body> <div class="end"></div> <script> var girls = []; function Girls(){ this.x = 0; this.y = parseInt(Math.random()*(document.documentElement.clientHeight - 108)); this.speed = parseInt(Math.random()*10)+1; this.step = 0; this.isMove = true; this.init(); this.update(); this.bindEvent(); girls.push(this); } Girls.prototype.init = function(){ this.dom = document.createElement('div'); this.dom.className = "girl"; document.body.appendChild(this.dom); //上树 }; Girls.prototype.update = function(){ if(!this.isMove) return; this.x += this.speed; if(this.x > 1000){ this.goDeid(); } this.step++; if(this.step > 7){ this.step = 0; } this.dom.style.left = this.x+"px"; this.dom.style.top = this.y+"px"; console.log("left:",this.dom.style.left ,"top:",this.dom.style.top); this.dom.style.backgroundPosition = -this.step*79+"px -216px"; }; Girls.prototype.goDeid = function(){ document.body.removeChild(this.dom); //下树 for(var i=0;i<girls.length;i++){ if(girls[i] == this){ girls.splice(i,1); } } }; Girls.prototype.bindEvent = function(){ var _this = this; this.dom.onclick = function(){ _this.isMove = !_this.isMove; }; }; setInterval(function(){ for(var i=0;i<girls.length;i++){ girls[i].update(); } },100); new Girls(); new Girls(); new Girls(); new Girls(); new Girls(); new Girls(); </script> </body> </html>
图片在文件中