/************************************************************************************* * LInE - Free Education, Private Data - http://www.usp.br/line * * This code is used EXCLUSIVELY when iFractions is runnign inside Moodle via iAssign * as an iLM (interactive learning module) and the global variable moodle=true. * * More about iAssign: * http://200.144.254.107/git/LInE/iassign * * More about creating iLM for iAssign (and the functions in this file): * https://www.ime.usp.br/~igormf/ima-tutorial/ (in pt-BR) * *************************************************************************************/ /** [Functions used by iAssign] * * The iLM will be included in the HTML page as an iFrame, * therefore some parameters are going to be passed by the iAssign to the iLM via URL.
* This method will read these parameters. */ function getParameterByName(name) { var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search); return match ? decodeURIComponent(match[1].replace(/\+/g, ' ')) : null; } /** [Functions used by iAssign] * * This function is automaticaly called by iAssign in two different times:
* * - When a PROFESSOR finishes creating an new iLM and clicks "save".
* Returns: the iLM created (aka the values set by the professor in text form).
* * - When a STUDENT finishes solving an assignment and clicks "send".
* Returns: data about the student's progress (aka the student's progress in text form).
* * @returns {string} the data that will be received by iAssign and stored on the database (a game file with extension .frc) */ function getAnswer() { let str = ''; if (iLMparameters.iLM_PARAM_SendAnswer == 'false') { // Student - sending results str += 'gameName:' + gameName + '\ngameShape:' + gameShape + '\ngameMode:' + gameMode + '\ngameOperation:' + gameOperation + '\ngameDifficulty:' + gameDifficulty + '\nshowFractions:' + showFractions + '\nresults:'; for (let i = 0; i < moodleVar.hits.length; i++) { str += '{level=' + (i + 1) + ',hits=' + moodleVar.hits[i] + ',errors=' + moodleVar.errors[i] + ',timeElapsed=' + moodleVar.time[i] + '}'; } } else { // Professor - creating new assignment if (!gameName) { alert(game.lang.error_must_select_game); return x; } moodleVar.hits = [0, 0, 0, 0]; moodleVar.errors = [0, 0, 0, 0]; moodleVar.time = [0, 0, 0, 0]; str += 'gameName:' + gameName + '\ngameShape:' + gameShape + '\ngameMode:' + gameMode + '\ngameOperation:' + gameOperation + '\ngameDifficulty:' + gameDifficulty + '\nshowFractions:' + showFractions; } return str; } /** [Functions used by iAssign] * * This function must be present if the iMA uses automatic evaluation.
* It is is called by iAssign after the student submits a solution * and the data is sent to the moodle database. * * @returns {number} student's grade for the current assignment : real number between 0.0 and 1.0 */ function getEvaluation() { if (iLMparameters.iLM_PARAM_SendAnswer == 'false') { // Student let i; for (i = 0; i < moodleVar.hits.length && moodleVar.hits[i] == 1; i++); const grade = i / 4; parent.getEvaluationCallback(grade); // Sends grade to moodle db return grade; } } /** [Functions used by iAssign] * * Holds the parameters passed by the iAssign to the iLM via URL. */ const iLMparameters = { /** * This parameter gets the role in which the iLM is being used:
* - if true, the user is creating a new iLM (as professor)
* - if false, the user is solving the iLM (as student), value=false */ iLM_PARAM_SendAnswer: getParameterByName('iLM_PARAM_SendAnswer'), // Checks if you're student (false) or professor (true) /** * This parameter is used when the user is opening an iLM to solve it.
* It holds a URL with the path to the game file (assignment/iLM) created by the professor.
* Example: http://myschool.edu/moodle/mod/iassign/ilm_security.php?id=3&token=b3660dd4de0b0e9bb01fea6cc8f02ccd&view=1 * * The first parameter, 'token', can be used only once. * Once the iLM gets the game file, the token is destroied (for security). */ iLM_PARAM_Assignment: getParameterByName('iLM_PARAM_Assignment'), /** * Gets current moodle language. */ lang: getParameterByName('lang'), iLM_PARAM_ServerToGetAnswerURL: getParameterByName( 'iLM_PARAM_ServerToGetAnswerURL' ), }; /** * Makes a GET request for the assignment file * and sends it to breakString() to treat its content. */ const getiLMContent = function () { const url = iLMparameters.iLM_PARAM_Assignment; if (url == null) { console.error( 'Game error: iLMparameters.iLM_PARAM_Assignment empty (File with extension .frc not found).' ); } else { const init = { method: 'GET' }; fetch(url, init) .then((response) => { if (response.ok) { if (isDebugMode) console.log('Processing...'); response.text().then((text) => { breakString(text); }); // Sends text to be treated } else { console.error('Game error: Network response was not ok.'); } }) .catch((error) => { console.error( 'Game error: problem with fetch operation - ' + error.message + '.' ); }); } }; /** * Receives the text from the assignment file, * breaks the string into a key/value * and sends it to updateGlobalVariables() * to update game variables before showing the screen. * * @param {string} text content of the .frc file */ const breakString = function (text) { let gameInfo = {}, results; const lines = text.split('\n'); // Break by line lines.forEach((cur) => { try { let line = cur.split(':'); // Break by key:value if (line[0] != 'results') { const key = line[0].replace(/^\s+|\s+$/g, ''); // Removes end character const value = line[1].replace(/^\s+|\s+$/g, ''); gameInfo[key] = value; } else { results = line[1].replace(/^\s+|\s+$/g, ''); } } catch (Error) { console.error('Game error: sintax error.'); } }); if (results) { let i = 1; const curLevel = results.split('}'); // Remove } results = { l1: {}, l2: {}, l3: {}, l4: {} }; curLevel.forEach((cur) => { cur = cur.slice(1); // Remove { cur = cur.split(','); // Break by line cur.forEach((cur) => { try { if (cur.length != 0) { let line = cur.split('='); // Break by key=value const key = line[0].replace(/^\s+|\s+$/g, ''); // Removes end char const value = line[1].replace(/^\s+|\s+$/g, ''); // Removes end char results['l' + i][key] = parseInt(value); } } catch (Error) { console.error('Game error: sintax error.'); } }); i++; }); } updateGlobalVariables(gameInfo, results); }; /** * Updates game variables before starting the activity, then:
* - calls state 'customMenu' if the assignment WAS NOT previously completed.
* - calls state 'studentReport' otherwise. * * @param {object} info game information * @param {undefined|object} infoResults student answer (if there is any) */ const updateGlobalVariables = function (infoGame, infoResults) { // Update game variables to content received from game file gameName = infoGame['gameName']; gameShape = infoGame['gameShape']; gameMode = infoGame['gameMode']; gameOperation = infoGame['gameOperation']; gameDifficulty = parseInt(infoGame['gameDifficulty']); showFractions = infoGame['showFractions']; // Update default values curMapPosition = 0; canGoToNextMapPosition = true; completedLevels = 0; // If the assignment WAS previously completed calls 'studentReport' after all is loaded. if (infoResults) { // Adds data about the student's report for (let i = 0; i < moodleVar.hits.length; i++) { moodleVar.hits[i] = infoResults['l' + (i + 1)].hits; moodleVar.errors[i] = infoResults['l' + (i + 1)].errors; moodleVar.time[i] = infoResults['l' + (i + 1)].timeElapsed; } game.state.start('studentReport'); } else { // If assignment WAS NOT previously completed, calls 'customMenu' after all is loaded. game.state.start('customMenu'); } }; moodleVar = { hits: [0, 0, 0, 0], errors: [0, 0, 0, 0], time: [0, 0, 0, 0], };