SOURCE

/**
 * 游戏初始化设定
 * */
LSystem.screen(0.6);
function doScroll() {if(window.pageYOffset === 0)window.scrollTo(0, 1);}
window.onorientationchange = function(){setTimeout(doScroll, 100);};
window.onresize = function(){setTimeout(doScroll, 100);};
window.onload = function() {
	setTimeout(doScroll, 100);
	init(40,"mylegend",800,450,main,LEvent.INIT);
};

/**
 * 层变量
 * */
//显示进度条所用层
var loadingLayer;
//游戏底层
var baseLayer;
//背景层
var backLayer;
//人物层
var charaLayer;

var imglist = {};
var imgData = new Array(
		{name:"player_stand",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/stand.png"},
		{name:"player_move",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/move.png"},
		{name:"player_run",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/run.png"},
		{name:"player_jump",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/jump.png"},
		{name:"player_attack",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/attack.png"},
		{name:"player_big_attack",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/big_attack.png"},
		{name:"player_jump_attack",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/jump_attack.png"},
		{name:"player_hit",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/hit.png"},
		{name:"player_skill",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/skill.png"},
		{name:"player_big_skill",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/big_skill.png"},
		{name:"back",path:"http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/back.png"}
		);
var hero = null;
//锁定按键
var keylock = false;
//按键
var KEY = {LEFT:65,RIGHT:68,UP:87,DOWN:83,ATTACK:74,JUMP:75};
//动作
var ACTION = {STAND:0,MOVE:1,RUN:2,JUMP:3,ATTACK:4,BIG_ATTACK:5,JUMP_ATTACK:6,HIT:7,SKILL:8,BIG_SKILL:9};
//方向
var DIRECTION = {RIGHT:"right",LEFT:"left"};
var MOVE_STEP = 6;
var keyCtrl = new Array();
function main(){
	LGlobal.setDebug(true);
	loadingLayer = new LoadingSample3();
	addChild(loadingLayer);
	LLoadManage.load(
			imgData,
			function(progress){
				loadingLayer.setProgress(progress);
			},
			gameInit
		);
}
function gameInit(result){
	imglist = result;
	removeChild(loadingLayer);
	loadingLayer = null;
	
	//初始化层
	baseLayer = new LSprite();
	addChild(baseLayer);
	
	//背景层
	backLayer = new LSprite();
	//backLayer.graphics.drawRect(1,"#000",[0,0,LGlobal.width,LGlobal.height],true,"#000");
	baseLayer.addChild(backLayer);
	var background = new LBitmap(new LBitmapData(imglist["back"],0,0,LGlobal.width,LGlobal.height));
	backLayer.addChild(background);
	
	//人物层
	charaLayer = new LSprite();	
	baseLayer.addChild(charaLayer);
	addHero();

	//添加帧事件
	baseLayer.addEventListener(LEvent.ENTER_FRAME,onframe);
	
	//添加键盘事件
	LEvent.addEventListener(LGlobal.window,LKeyboardEvent.KEY_DOWN,onkeydown);
	LEvent.addEventListener(LGlobal.window,LKeyboardEvent.KEY_UP,onkeyup);
}
function addHero(){
	var heroData = CharacterList.huangzhong();
	hero = new Player(heroData[0],heroData[1],heroData[2]);
	hero.x = 200;
	hero.y = 250;
	charaLayer.addChild(hero);
}
function onframe(){
	var key = null;
	for(key in charaLayer.childList){
		charaLayer.childList[key].onframe();
	}
}
var lefttime = 0, righttime = 0;
var keyList = [{keyCode:0,time:0},{keyCode:0,time:0},{keyCode:0,time:0}];
function onkeydown(e){
	if(keylock || keyCtrl[e.keyCode])return;
	
	var keyThis = {keyCode:e.keyCode,time:(new Date()).getTime()};
	var keyLast01 = keyList[0];
	var keyLast02 = keyList[1];
	
	keyCtrl[e.keyCode] = true;
	keyList.unshift(keyThis);
	keyList.pop();
	
	switch(e.keyCode){
		case KEY.LEFT:
			if(keyLast01.keyCode == KEY.LEFT && keyThis.time - keyLast01.time < 200){
				hero.setAction(ACTION.RUN,DIRECTION.LEFT);
			}else{
				hero.setAction(ACTION.MOVE,DIRECTION.LEFT);
			}
			break;
		case KEY.RIGHT:
			if(keyLast01.keyCode == KEY.RIGHT && keyThis.time - keyLast01.time < 200){
				hero.setAction(ACTION.RUN,DIRECTION.RIGHT);
			}else{
				hero.setAction(ACTION.MOVE,DIRECTION.RIGHT);
			}
			break;
		case KEY.UP:
			hero.setAction(ACTION.MOVE,hero.direction);
			break;
		case KEY.DOWN:
			hero.setAction(ACTION.MOVE,hero.direction);
			break;
		case KEY.ATTACK:
			if(keyLast01.keyCode == KEY.ATTACK && keyLast02.keyCode == KEY.ATTACK && keyThis.time - keyLast02.time < 1000){
				keyList = [{keyCode:0,time:0},{keyCode:0,time:0},{keyCode:0,time:0}];
				keylock = true;
				hero.setAction(ACTION.BIG_ATTACK,hero.direction);
			}else if(keyLast01.keyCode == KEY.JUMP && keyThis.time - keyLast01.time < 50){
				keylock = true;
				hero.setAction(ACTION.BIG_SKILL,hero.direction);
			}else if(hero.action == ACTION.JUMP){
				hero.setAction(ACTION.JUMP_ATTACK,hero.direction);
			}else if(keyLast01.keyCode == KEY.UP && keyLast02.keyCode == KEY.DOWN && keyThis.time - keyLast02.time < 300){
				keylock = true;
				hero.setAction(ACTION.SKILL,hero.direction);
			}else{
				setTimeout("keylock = true;",50);
				hero.setAction(ACTION.ATTACK,hero.direction);
			}
			break;
		case KEY.JUMP:
			if(keyLast01.keyCode == KEY.ATTACK && keyThis.time - keyLast01.time < 50){
				keylock = true;
				hero.setAction(ACTION.BIG_SKILL,hero.direction);
			}else if(keyCtrl[KEY.DOWN]){
				hero.setAction(ACTION.HIT,hero.direction);
			}else{
				hero.setAction(ACTION.JUMP,hero.direction);
			}
			break;
	}
}
function onkeyup(e){
	keyCtrl[e.keyCode] = false;
	if(hero.action == ACTION.MOVE || hero.action == ACTION.RUN)
		hero.setAction(ACTION.STAND,hero.direction);
}

<script type="text/javascript" src="http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/lufylegend-1.5.2.js"></script>
	<script type="text/javascript" src="http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/lufylegend-1.5.2.js"></script>
	<script type="text/javascript" src="http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/Character.js"></script>
	<script type="text/javascript" src="http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/CharacterList.js"></script>
	<script type="text/javascript" src="http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/lufylegend-1.5.2.min.js"></script>
	<script type="text/javascript" src="http://sandbox.runjs.cn/uploads/rs/41/bfmp6hpg/Player.js"></script>
</head>
<body>
	<h2>
		该应用非原创，作者网站请猛戳
		<a href="http://blog.csdn.net/lufy_Legend">这里</a>
	</h2>
<div id="mylegend">loading……</div>