1 /**************************************************************************** 2 Copyright (c) 2010-2012 cocos2d-x.org 3 Copyright (c) 2008-2010 Ricardo Quesada 4 Copyright (c) 2011 Zynga Inc. 5 6 http://www.cocos2d-x.org 7 8 Permission is hereby granted, free of charge, to any person obtaining a copy 9 of this software and associated documentation files (the "Software"), to deal 10 in the Software without restriction, including without limitation the rights 11 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 copies of the Software, and to permit persons to whom the Software is 13 furnished to do so, subject to the following conditions: 14 15 The above copyright notice and this permission notice shall be included in 16 all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 21 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 THE SOFTWARE. 25 ****************************************************************************/ 26 27 /** 28 * A class to pre-load resources before engine start game main loop. 29 * @class 30 * @extends cc.Class 31 */ 32 cc.Loader = cc.Class.extend(/** @lends cc.Loader# */{ 33 resourceCount:0, 34 loadedResourceCount:0, 35 timer:0, 36 37 /** 38 * Check the loading status 39 */ 40 isLoadedComplete:function () { 41 var loaderCache = cc.Loader.getInstance(); 42 if (loaderCache.loadedResourceCount == loaderCache.resourceCount) { 43 if (loaderCache.onload) { 44 loaderCache.timer = setTimeout(loaderCache.onload, 16); 45 } else { 46 cc.Assert(0, "cocos2d:no load callback defined"); 47 } 48 } else { 49 if (loaderCache.onloading) { 50 loaderCache.timer = setTimeout(loaderCache.onloading, 16); 51 } 52 else { 53 cc.LoaderScene.getInstance().draw(); 54 } 55 loaderCache.timer = setTimeout(loaderCache.isLoadedComplete, 16); 56 } 57 }, 58 59 /** 60 * Callback when loading resource error 61 * @param {String} name 62 * @example 63 * //example 64 * cc.Loader.getInstance().onResLoadingErr(name); 65 */ 66 onResLoadingErr:function (name) { 67 cc.log("cocos2d:Failed loading resource: " + name); 68 }, 69 70 /** 71 *Callback when a resource file loaded. 72 * @example 73 * //example 74 * cc.Loader.getInstance().onResLoaded(); 75 */ 76 onResLoaded:function () { 77 this.loadedResourceCount++; 78 }, 79 80 /** 81 * For loading percentage 82 * You can use this method to create a custom loading screen. 83 * @return {Number} 84 * @example 85 * //example 86 * cc.log(cc.Loader.getInstance().getProgressBar() + "%"); 87 */ 88 getProgressBar:function () { 89 var per = this.loadedResourceCount / this.resourceCount; 90 per = 0 | (per * 100); 91 return per; 92 }, 93 94 /** 95 * status when resources loading success 96 * @example 97 * //example 98 * cc.Loader.getInstance().onload = function () { 99 * cc.AppController.shareAppController().didFinishLaunchingWithOptions(); 100 * }; 101 */ 102 onload:undefined, 103 104 /** 105 * status when res loading error 106 * @example 107 * //example 108 * cc.Loader.getInstance().onerror = function () { 109 * //do something 110 * }; 111 */ 112 onerror:undefined, 113 114 /** 115 * status when res loading 116 * @example 117 * //example 118 * cc.Loader.getInstance().onloading = function () { 119 * cc.LoaderScene.getInstance().draw(); 120 * }; 121 */ 122 onloading:undefined, 123 124 _registerFaceFont:function (fontRes) { 125 var srcArr = fontRes.srcArr; 126 if (fontRes.srcArr && srcArr.length > 0) { 127 var fontStyle = document.createElement("style"); 128 fontStyle.type = "text/css"; 129 document.body.appendChild(fontStyle); 130 131 var fontStr = "@font-face { font-family:" + fontRes.fontName + "; src:"; 132 for (var i = 0; i < srcArr.length; i++) { 133 fontStr += "url('" + encodeURI(srcArr[i].src) + "') format('" + srcArr[i].type + "')"; 134 fontStr += (i == (srcArr.length - 1)) ? ";" : ","; 135 } 136 fontStyle.textContent += fontStr + "};"; 137 } 138 cc.Loader.getInstance().onResLoaded(); 139 }, 140 141 /** 142 * Pre-load the resources before engine start game main loop. 143 * There will be some error without pre-loading resources. 144 * @param {object} res 145 * @example 146 * //example 147 * var res = [ 148 * {type:"image", src:"hello.png"}, 149 * {type:"tmx", src:"hello.tmx"} 150 * ] 151 * cc.Loader.getInstance().preload(res); 152 */ 153 preload:function (res) { 154 var sharedTextureCache = cc.TextureCache.getInstance(); 155 var sharedEngine = cc.AudioEngine.getInstance(); 156 var sharedParser = cc.SAXParser.getInstance(); 157 var sharedFileUtils = cc.FileUtils.getInstance(); 158 159 this.loadedResourceCount = 0; 160 this.resourceCount = res.length; 161 for (var i = 0; i < res.length; i++) { 162 switch (res[i].type) { 163 case "image": 164 sharedTextureCache.addImage(res[i].src); 165 break; 166 case "sound": 167 sharedEngine.preloadSound(res[i].src); 168 break; 169 case "plist": 170 case "tmx": 171 case "fnt": 172 sharedParser.preloadPlist(res[i].src); 173 break; 174 case "tga": 175 //cc.log("cocos2d:not implemented yet") 176 break; 177 case "ccbi": 178 case "binary": 179 sharedFileUtils.preloadBinaryFileData(res[i].src); 180 break; 181 case "face-font": 182 this._registerFaceFont(res[i]); 183 break; 184 default: 185 throw "cocos2d:unknow type : " + res[i].type; 186 break; 187 } 188 } 189 this.isLoadedComplete(); 190 } 191 }); 192 193 /** 194 * Share Loader 195 * @return {cc.Loader} 196 */ 197 cc.Loader.getInstance = function () { 198 if (!this._instance) { 199 this._instance = new cc.Loader(); 200 } 201 return this._instance; 202 }; 203 cc.Loader._instance = null; 204 205 /** 206 * Default loading screen, you can customize the loading screen. 207 * @class 208 * @extends cc.Class 209 */ 210 cc.LoaderScene = cc.Class.extend(/** @lends cc.LoaderScene# */{ 211 _logo:new Image(), 212 213 /** 214 * Constructor 215 */ 216 ctor:function () { 217 this._logo.src = 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"; 218 219 this._logo.width = 160; 220 this._logo.height = 200; 221 }, 222 223 /** 224 * Draw loading screen 225 */ 226 draw:function () { 227 var logoWidth = (cc.canvas.width - this._logo.width) / 2; 228 var logoHeight = (cc.canvas.height - this._logo.height) / 2; 229 cc.renderContext.clearRect(0, -cc.canvas.height, cc.canvas.width, cc.canvas.height); 230 cc.renderContext.fillStyle = "#202020"; 231 cc.renderContext.fillRect(0, -cc.canvas.height, cc.canvas.width, cc.canvas.height); 232 cc.drawingUtil.drawImage(this._logo, cc.p(logoWidth, logoHeight)); 233 cc.renderContext.fillStyle = "#b2b4b3"; 234 cc.renderContext.font = 'Bold 12px Verdana'; 235 cc.renderContext.textAlign = 'left'; 236 cc.drawingUtil.fillText("Loading " + cc.Loader.getInstance().getProgressBar() + "%", logoWidth + 30, logoHeight - 15); 237 } 238 }); 239 240 /** 241 * Shared loader scene 242 * @return {cc.LoaderScene} 243 */ 244 cc.LoaderScene.getInstance = function () { 245 if (!this._instance) { 246 this._instance = new cc.LoaderScene(); 247 } 248 return this._instance; 249 }; 250 251 cc.LoaderScene._instance = null;