tv_xiaoyouxi/games/qcds/launcher/egret_loader.js

/**
 * Copyright (c) 2014,Egret-Labs.org
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Egret-Labs.org nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY EGRET-LABS.ORG AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL EGRET-LABS.ORG AND CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

egret_h5.startGame = function () {
    var  context = egret.MainContext.instance;
    context.touchContext = new egret.HTML5TouchContext();
    context.deviceContext = new egret.HTML5DeviceContext();
    context.netContext = new egret.HTML5NetContext();


    var winHeight;
    var winWidth;
    if (document.documentElement && document.documentElement.clientHeight && document.documentElement.clientWidth){
        winHeight = document.documentElement.clientHeight;
        winWidth = document.documentElement.clientWidth;
    }else{
        winHeight = window.innerHeight;
        winWidth = window.innerWidth;
    }

    if(/iPhone/i.test(navigator.userAgent)){
        var GameWin = {w:640,h:1136};
    }else{
        var GameWin = {w:320,h:568};
    }
    var Gper = GameWin.h/GameWin.w;
    var per = winHeight/winWidth;
    if(per<=Gper){
        egret.StageDelegate.getInstance().setDesignSize(GameWin.h/per, GameWin.h);
    }else if(per>Gper){
        egret.StageDelegate.getInstance().setDesignSize(GameWin.w, GameWin.w*per);
    }

    context.stage = new egret.Stage();
    var scaleMode =  egret.MainContext.deviceType == egret.MainContext.DEVICE_MOBILE ? egret.StageScaleMode.NO_BORDER : egret.StageScaleMode.SHOW_ALL;
    context.stage.scaleMode = scaleMode;

    //WebGL是egret的Beta特性，默认关闭
    var rendererType = 0;
    if (rendererType == 1) {// egret.WebGLUtils.checkCanUseWebGL()) {
        console.log("使用WebGL模式");
        context.rendererContext = new egret.WebGLRenderer();
    }
    else {
        context.rendererContext = new egret.HTML5CanvasRenderer();
    }

    egret.MainContext.instance.rendererContext.texture_scale_factor = 1;
    context.run();

    var rootClass;
    if(document_class){
        rootClass = egret.getDefinitionByName(document_class);
    }
    if(rootClass) {
        var rootContainer = new rootClass();
        if(rootContainer instanceof egret.DisplayObjectContainer){
            context.stage.addChild(rootContainer);
        }
        else{
            throw new Error("文档类必须是egret.DisplayObjectContainer的子类!");
        }
    }
    else{
        throw new Error("找不到文档类！");
    }

    //处理屏幕大小改变
    var resizeTimer = null;
    var doResize = function () {
        context.stage.changeSize();
        resizeTimer = null;
    };
    window.onresize = function () {
        if (resizeTimer == null) {
            resizeTimer = setTimeout(doResize, 300);
        }
    };
};