原創(chuàng)javascript小游戲?qū)崿F(xiàn)代碼

更新時(shí)間：2010年08月19日 15:01:15 作者：

javascript小游戲?qū)崿F(xiàn)代碼，喜歡用javascript實(shí)現(xiàn)游戲效果代碼的朋友可以參考下。

以下是代碼：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>jjb</title> 
<style type="text/css"> 
* { margin:0px; padding:0px;} 
#content{ width:800px; height:500px; position:absolute; left:10px; top:10px; background:url(bg.gif) repeat-x left top;} 
#scbox{width:100px; background:#000000; font-weight:bold; color:#FFFFFF; font-size:12px; line-height:22px; padding-left:10px;} 
#start{ position:absolute; left:215px; _left:190px; top:140px;} 
#life { height:22px; background:#009000; position:absolute; left:110px; top:0px;} 
#bottom { width:800px; height:44px; position:absolute; left:0; top:456px; background:#333; z-index:9;} 
#startbox { height:150px; position:absolute; left:260px; top:100px; background:#000000; color:#fff; font-size:12px; padding:10px;} 
#jia {font-size:40px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#0099CC; position:absolute; z-index:1001;} 
#jian {font-size:40px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#FF0000; position:absolute; z-index:1001;} 
</style> 
<script language="javascript"> 
(function (){ 
(new Image()).src = "38.gif"; 
(new Image()).src = "48.gif"; 
(new Image()).src = "bike.gif"; 
(new Image()).src = "bike2.gif"; 
(new Image()).src = "bg.gif"; 
})(); 
//緩存加載圖片 
function $(id) {return document.getElementById(id);} 
var boxBaseAttr = new Object; 
boxBaseAttr = { 
width : "26px", 
height : "40px", 
position: "absolute", 
top : "30px", 
background : "url(38.gif) no-repeat center top", 
zIndex : 10 
}; 
var boxBaseAttr2 = new Object; 
boxBaseAttr2 = { 
width : "26px", 
height : "40px", 
position: "absolute", 
top : "30px", 
background : "url(48.gif) no-repeat center top", 
zIndex : 10 
}; 

var ele = new Object; 
ele = { 
div : document.createElement("div"), 
span: function (){ 
var sp = document.createElement("span"); 
for(var s in boxBaseAttr) { 
sp.style[s] = boxBaseAttr[s]; 
} 
sp.setAttribute("type", "good"); 
return sp; 
}, 
badspan : function (){ 
var sp2 = document.createElement("span"); 
for(var s in boxBaseAttr2) { 
sp2.style[s] = boxBaseAttr2[s]; 
} 
sp2.setAttribute("type", "bad"); 
return sp2; 
} 
}; 

var sco = 0, lifeWidth = 690, lifes = true; 
var bar = { 
getScore : function () { 
sco += 10; 
$("sc").innerHTML = sco; 
}, 
loseScore : function (){ 
sco -= 10; 
$("sc").innerHTML = sco; 
}, 
life : function (){ 
var life = $("life"); 
var sl = setInterval(function(){ 
if(lifeWidth < 23) { 
lifes = false; 
clearInterval(sl); 
return; 
} 
else { 
lifeWidth -= 23; 
life.style.width = lifeWidth + "px"; 
} 
},1000); 
} 
}; 
var fire = { 
init : function (o, x, y) { 
o.style.display = "block"; 
o.style.left = x + "px"; 
o.style.top = y + "px"; 
var fs = setInterval(function(){ 
if (y >= 280) { 
y -= 10; 
o.style.top = y + "px"; 
} 
else{ 
clearInterval(fs); 
o.style.display = "none"; 
} 
},10); 
} 
}; 

/*-- game begin --*/ 
function game() { 
var content = $("content"), x = 0; 
var pigBaseAttr = new Object; 
pigBaseAttr = { 
background : "url(bike.gif) no-repeat center top", 
position : "absolute", 
top : content.clientHeight-44+"px", 
left : (content.clientWidth - 45)/2+"px", 
width : "45px", 
height : "44px", 
zIndex : 1000 
}; 
var pig = ele.div.cloneNode(true); 
for(var s in pigBaseAttr) { 
pig.style[s] = pigBaseAttr[s]; 
} 
content.appendChild(pig); 

/* -- 小豬移動(dòng)功能begin--*/ 
content.onmousemove = function (event){ 
var e = event || window.event; 
if ( x > e.clientX) { 
//pig.style.width = "110px"; 
pig.style.background = "url(bike.gif) no-repeat left top"; 
if (e.clientX -45 < 0) { 
pig.style.left = "0px"; 
} else if(e.clientX + 45 > 800) { 
pig.style.left = "755px"; 
} 
else { 
pig.style.left = (e.clientX - 45)+"px"; 
} 
} 
else if (x < e.clientX) { 
//pig.style.width = "110px"; 
pig.style.background = "url(bike2.gif) no-repeat right top"; 
if (e.clientX -45 < 0) { 
pig.style.left = "0px"; 
} else if(e.clientX + 45 > 800) { 
pig.style.left = "755px"; 
} 
else { 
pig.style.left = (e.clientX - 45)+"px"; 
} 
} 
x = e.clientX; 
} 

/*-- 判斷是否撞擊，傳入?yún)?shù)為box和content --*/ 
function meet(obox,parent) { 
var objX = obox.offsetLeft; 
var pigX = pig.offsetLeft; 
var boxType = obox.getAttribute("type"); 
if (objX + 26 >= pigX && objX <= pigX + 45) { 
if (boxType == "good") { 
bar.getScore(); 
fire.init($("jia"), pigX, pig.offsetTop-30); 
} 
else if(boxType == "bad") { 
bar.loseScore(); 
fire.init($("jian"), pigX, pig.offsetTop-30); 
} 
obox.style.left = "-2000px"; 
} 
} 

/* -- 創(chuàng)建隨機(jī)位置的金幣 begin--*/ 
function createbox() { 
var box = ele.span(); 
var b = 30; 
var boxLeft = Math.floor(Math.random()*760);//產(chǎn)生隨機(jī)距離 
box.style.left = boxLeft + "px"; 
content.appendChild(box); 
//box進(jìn)入游戲界面，開(kāi)始移動(dòng)，并開(kāi)始執(zhí)行函數(shù)和pig比對(duì)是否撞擊 
var st = setInterval(function (){ 
if (b < 460){ 
box.style.top = b + 5 + "px"; 
b += 5; 
if (b >= 416) { 
meet(box, content); 
} 
} 
else { 
content.removeChild(box); 
clearInterval(st); 
b = 30; 
} 
},5); 
} 

function createbadbox() { 
var box = ele.badspan(); 
var b = 30; 
var boxLeft = Math.floor(Math.random()*760);//產(chǎn)生隨機(jī)距離 
box.style.left = boxLeft + "px"; 
content.appendChild(box); 
//box進(jìn)入游戲界面，開(kāi)始移動(dòng)，并開(kāi)始執(zhí)行函數(shù)和pig比對(duì)是否撞擊 
var st = setInterval(function (){ 
if (b < 460){ 
box.style.top = b + 5 + "px"; 
b += 5; 
if (b > 416) { 
meet(box, content); 
} 
} 
else { 
content.removeChild(box); 
clearInterval(st); 
b = 30; 
} 
},5); 
} 

bar.life(); 

/*-- 開(kāi)始執(zhí)行循環(huán)添加box函數(shù) --*/ 
var xt = setInterval(function(){ 
if (lifes == false) { 
clearInterval(xt); 
alert("時(shí)間到，您的得分是："+sco); 
lifeWidth = 690; 
lifes = true; 
sco = 0; 
$("startbox").style.display = "block"; 
$("start").value = "再玩一次"; 
content.removeChild(pig); 

}else{ 
createbox(); 
createbadbox(); 
} 
},500); 
} 

window.onload = function () { 
$("start").onclick = function () { 
$("startbox").style.display = "none"; 
new game(); 
} 
} 
</script> 
</head> 
<body> 
<div id="content"> 
<div id="startbox"> 
<p>游戲規(guī)則：</p> 
<p>(1) 你只有30秒的時(shí)間，用鼠標(biāo)控制小豬左右移動(dòng);</p> 
<p>(2) 小豬接到<img src="38.gif" />女孩，加10分；</p> 
<p>(3) 小豬接到<img src="48.gif" />女孩，減10分；</p> 
<input type="button" id="start" value="開(kāi)始游戲" /> 
</div> 
<div id="scbox">分?jǐn)?shù)：<span id="sc">0</span></div> 
<div id="life" style="width:690px;"></div> 
<div id="bottom"></div> 
<div id="jia" style="display:none;">+10</div> 
<div id="jian" style="display:none;">-10</div> 
</div> 
</body> 
</html>