tv_xiaoyouxi/games/sjy/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 wid = document.documentElement.clientWidth;
    var hei = document.documentElement.clientHeight;
    var bet=1;//iphone系列比较特殊，尺寸需要翻倍
    switch(wid){
        case 320://iphone4\5
            bet = 2;
            break;
        case 375://iphone 6
            bet = 2;
            break;
        case 414://iphone 6+
            bet = 3;
            break;
        default :
            bet =1;
            break;
    }
    wid *= bet; hei*= bet;
    var gW = GameData.GameWidth;
    var gh = GameData.GameHeight;
    var _scale = 1;
    var scale_1 = 640 / 916;
    var scale_2 = scale_1/(wid / hei);
    if(wid < hei){ // 竖屏
        _scale = gW / wid;
        gh = _scale * hei;
        if(wid > 750){

            if(gh < GameData.limitH2){
                gh = GameData.limitH2;
            }
        }else{
            if(gh < GameData.limitH1){
                gh = GameData.limitH1;
                if(scale_1 < 1){
                    gh += Math.floor(scale_1*20);
                }

            }

        }
        GameData.GameHeight = gh;
    }else{

    }
    var s = 'w:'+wid+" h:"+hei+'gh'+gh+'GameData.limitH1'+GameData.limitH1 + '_scale' + _scale + 'scale_2' + scale_2
  //  alert(s);
   // console.log(s);

    var  context = egret.MainContext.instance;
    context.touchContext = new egret.HTML5TouchContext();
    context.deviceContext = new egret.HTML5DeviceContext(60);
    context.netContext = new egret.HTML5NetContext();

    //egret.StageDelegate.getInstance().setDesignSize(480, 800);
    egret.StageDelegate.getInstance().setDesignSize(GameData.GameWidth, GameData.GameHeight);
    context.stage = new egret.Stage();
    var scaleMode =  egret.MainContext.deviceType == egret.MainContext.DEVICE_MOBILE ? egret.StageScaleMode.SHOW_ALL : egret.StageScaleMode.NO_SCALE;
    context.stage.scaleMode = scaleMode;

    //WebGL是egret的Beta特性，默认关闭
    var rendererType = 0;
    if (rendererType == 1) {// egret.WebGLUtils.checkCanUseWebGL()) {
        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);
        }
    };
};