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Function('return this')()['Engine'] = (function() {
var unloadAfterInit = true;
var canvas = null;
var resizeCanvasOnStart = false;
var customLocale = 'en_US';
var wasmExt = '.wasm';
var preloader = new Preloader();
var loader = new Loader();
var rtenv = null;
var executableName = '';
var loadPath = '';
var loadPromise = null;
var initPromise = null;
var stderr = null;
var stdout = null;
var progressFunc = null;
function load(basePath) {
if (loadPromise == null) {
loadPath = basePath;
loadPromise = preloader.loadPromise(basePath + wasmExt);
preloader.setProgressFunc(progressFunc);
requestAnimationFrame(preloader.animateProgress);
}
return loadPromise;
};
function unload() {
loadPromise = null;
};
/** @constructor */
function Engine() {};
Engine.prototype.init = /** @param {string=} basePath */ function(basePath) {
if (initPromise) {
return initPromise;
}
if (!loadPromise) {
if (!basePath) {
initPromise = Promise.reject(new Error("A base path must be provided when calling `init` and the engine is not loaded."));
return initPromise;
}
load(basePath);
}
var config = {}
if (typeof stdout === 'function')
config.print = stdout;
if (typeof stderr === 'function')
config.printErr = stderr;
initPromise = loader.init(loadPromise, loadPath, config).then(function() {
return new Promise(function(resolve, reject) {
rtenv = loader.env;
if (unloadAfterInit) {
loadPromise = null;
}
resolve();
});
});
return initPromise;
};
/** @type {function(string, string):Object} */
Engine.prototype.preloadFile = function(file, path) {
return preloader.preload(file, path);
};
/** @type {function(...string):Object} */
Engine.prototype.start = function() {
// Start from arguments.
var args = [];
for (var i = 0; i < arguments.length; i++) {
args.push(arguments[i]);
}
var me = this;
return new Promise(function(resolve, reject) {
return me.init().then(function() {
if (!(canvas instanceof HTMLCanvasElement)) {
canvas = Utils.findCanvas();
}
rtenv['locale'] = customLocale;
rtenv['canvas'] = canvas;
rtenv['thisProgram'] = executableName;
rtenv['resizeCanvasOnStart'] = resizeCanvasOnStart;
loader.start(preloader.preloadedFiles, args).then(function() {
loader = null;
initPromise = null;
resolve();
});
});
});
};
Engine.prototype.startGame = function(execName, mainPack) {
// Start and init with execName as loadPath if not inited.
executableName = execName;
var me = this;
return Promise.all([
this.init(execName),
this.preloadFile(mainPack, mainPack)
]).then(function() {
return me.start('--main-pack', mainPack);
});
};
Engine.prototype.setWebAssemblyFilenameExtension = function(override) {
if (String(override).length === 0) {
throw new Error('Invalid WebAssembly filename extension override');
}
wasmExt = String(override);
};
Engine.prototype.setUnloadAfterInit = function(enabled) {
unloadAfterInit = enabled;
};
Engine.prototype.setCanvas = function(canvasElem) {
canvas = canvasElem;
};
Engine.prototype.setCanvasResizedOnStart = function(enabled) {
resizeCanvasOnStart = enabled;
};
Engine.prototype.setLocale = function(locale) {
customLocale = locale;
};
Engine.prototype.setExecutableName = function(newName) {
executableName = newName;
};
Engine.prototype.setProgressFunc = function(func) {
progressFunc = func;
}
Engine.prototype.setStdoutFunc = function(func) {
var print = function(text) {
if (arguments.length > 1) {
text = Array.prototype.slice.call(arguments).join(" ");
}
func(text);
};
if (rtenv)
rtenv.print = print;
stdout = print;
};
Engine.prototype.setStderrFunc = function(func) {
var printErr = function(text) {
if (arguments.length > 1)
text = Array.prototype.slice.call(arguments).join(" ");
func(text);
};
if (rtenv)
rtenv.printErr = printErr;
stderr = printErr;
};
// Closure compiler exported engine methods.
/** @export */
Engine['isWebGLAvailable'] = Utils.isWebGLAvailable;
Engine['load'] = load;
Engine['unload'] = unload;
Engine.prototype['init'] = Engine.prototype.init
Engine.prototype['preloadFile'] = Engine.prototype.preloadFile
Engine.prototype['start'] = Engine.prototype.start
Engine.prototype['startGame'] = Engine.prototype.startGame
Engine.prototype['setWebAssemblyFilenameExtension'] = Engine.prototype.setWebAssemblyFilenameExtension
Engine.prototype['setUnloadAfterInit'] = Engine.prototype.setUnloadAfterInit
Engine.prototype['setCanvas'] = Engine.prototype.setCanvas
Engine.prototype['setCanvasResizedOnStart'] = Engine.prototype.setCanvasResizedOnStart
Engine.prototype['setLocale'] = Engine.prototype.setLocale
Engine.prototype['setExecutableName'] = Engine.prototype.setExecutableName
Engine.prototype['setProgressFunc'] = Engine.prototype.setProgressFunc
Engine.prototype['setStdoutFunc'] = Engine.prototype.setStdoutFunc
Engine.prototype['setStderrFunc'] = Engine.prototype.setStderrFunc
return Engine;
})();
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