javascript编写贪吃蛇游戏【javascript】

web前端|js教程

javascript,贪吃蛇

web前端-js教程

代码很简单，这里就不多BB了，小伙伴们直接看示例吧

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*{ margin:0; padding:0;}#wrap{ position:relative;width:400px;height:400px; border:1px solid #ccc; margin:10px auto;}.snak, .snakBody{ position:absolute; width:10px;height:10px; background:#666;}.food{ position:absolute;width:10px;height:10px; background:#09F;display:block;}

var Snak, Food;;Food = function(op){ //op为zepto对象 var food = $(\); food.css({ left : Math.floor(((op[0].clientWidth-10)*Math.random())), top : Math.floor(((op[0].clientHeight-10)*Math.random())) }) op.append( food );};Snak = function(op){ this.obj = document.createElement(div); this.obj.className = snak; this.op = op;};Snak.prototype.ev = function(){ var _this = this, code; $(window).bind(keydown,function(e){ clearInterval(_this.downTimer); code = e.keyCode; _this.downTimer = setInterval(function(){var l = _this.obj.offsetLeft, t = _this.obj.offsetTop;switch( code ){ case 37 :l = l - 5; break; case 38 : t = t - 5; break; case 39 : l = l + 5; break; case 40:t = t + 5; break;};if( (l<0) || (t400) || (t>400)){location.reload()};_this.obj.style.left = l + px;_this.obj.style.top = t + px;var snakB = $(.snakBody);for(var i=snakB.length-1; i>=0; i--){ if(i == 0){snakB[0].style.left = l + px;snakB[0].style.top = t + px; }else{snakB[i].style.left = snakB[i-1].offsetLeft + px;snakB[i].style.top = snakB[i-1].offsetTop + px; };};if( pz(_this.obj,$(.food)[0]) ){ $(.food).remove(); new Food(wrap); $(

).appendTo(wrap)}; },30); }).bind(keyup,function(e){ });};function pz(obj1,obj2){ var L1 = obj1.offsetLeft; var T1 = obj1.offsetTop; var R1 = L1 + obj1.offsetWidth; var B1 = T1 + obj1.offsetHeight; var L2 = obj2.offsetLeft; var T2 = obj2.offsetTop; var R2 = L2 + obj2.offsetWidth; var B2 = T2 + obj2.offsetHeight; if(L1 >= R2 || T1 >= B2 || R1 <= L2 || B1 <= T2){ return false; } return true;};var wrap = $(#wrap),snak = new Snak(food);var food = new Food( wrap );snak.ev();wrap.append( $(

) )[0].appendChild( snak.obj );

以上所述就是本文的全部内容了，希望大家能够喜欢。

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