File indexing completed on 2024-04-28 15:07:54

 /* GCompris - letter-in-word.js
  *
  * SPDX-FileCopyrightText: 2014 Holger Kaelberer
  *               2016 Akshat Tandon
  *               2020 Timothée Giet
  *
  * Authors:
  *   Holger Kaelberer <holger.k@elberer.de> (Qt Quick port of click-on-letter)
  *   Akshat Tandon    <akshat.tandon@research.iiit.ac.in>
  *   Timothée Giet <animtim@gmail.com>
  *
  *   SPDX-License-Identifier: GPL-3.0-or-later
  */
 
 .pragma library
 .import QtQuick 2.12 as Quick
 .import GCompris 1.0 as GCompris //for ApplicationInfo
 .import "qrc:/gcompris/src/core/core.js" as Core
 .import "qrc:/gcompris/src/activities/lang/lang_api.js" as Lang
 
 var resUrl = "qrc:/gcompris/src/activities/braille_fun/resource/"
 
 var levels;
 var maxLevel;
 var currentLetter;
 var maxSubLevel;
 var questions;
 var words;
 var items;
 var dataset = null;
 var frequency;
 var locale;
 
 function start(_items) {
     items = _items;
     // register the voices for the locale
     locale = GCompris.ApplicationInfo.getVoicesLocale(items.locale);
     GCompris.DownloadManager.updateResource(GCompris.GCompris.VOICES, {"locale": locale})
     loadDataset();
     levels = Lang.getAllLessons(dataset);
     items.score.currentSubLevel = 0;
     maxLevel = levels.length;
     items.currentLevel = Core.getInitialLevel(maxLevel);
     initLevel();
 }
 
 function loadDataset() {
     var resourceUrl = "qrc:/gcompris/src/activities/lang/resource/";
     var data = Lang.loadDataset(items.parser, resourceUrl, locale);
     dataset = data["dataset"];
     items.background.englishFallback = data["englishFallback"];
     if(!items.background.englishFallback)
         Core.checkForVoices(items.activityPage);
 }
 
 function stop() {
     items.animateX.stop()
 }
 
 function shuffleString(s) {
     var a = s;
     var n = a.length;
 
     for(var i = n-1; i > 0; --i) {
         var j = Math.floor(Math.random() * (i + 1));
         var tmp = a[i];
         a[i] = a[j];
         a[j] = tmp;
     }
     return a.join("");
 }
 
 function initLevel() {
     items.errorRectangle.resetState();
     if (items.score.currentSubLevel == 0) {
         var level = levels[items.currentLevel];
         words = Lang.getLessonWords(dataset, level);
         Core.shuffle(words);
         var limit = Math.min(items.currentMode, words.length);
         words = words.slice(0, limit);
         frequency = calculateFrequency();
         var tempQuestions = generateQuestions();
         maxSubLevel = tempQuestions.length;
         items.score.numberOfSubLevels = maxSubLevel;
         questions = shuffleString(tempQuestions);
         items.wordsModel.clear();
         for (var i = 0; i < words.length; i++) {
             items.wordsModel.append({
                                         "spelling": words[i].translatedTxt,
                                         "imgurl": words[i].image,
                                         "voice": words[i].voice,
                                         "selected": false
                                     });
         }
     }
 
     for(var i = 0; i < words.length; i++) {
         items.wordsModel.setProperty(i, "selected", false);
     }
 
     currentLetter = questions[items.score.currentSubLevel];
     items.question = currentLetter;
     items.animateX.restart();
 
     if(items.currentLetterCase == Quick.Font.MixedCase) {
         items.questionItem.font.capitalization = (Math.floor(Math.random() * 2) < 1) ? Quick.Font.AllLowercase : Quick.Font.AllUppercase
     }
     else {
         items.questionItem.font.capitalization = items.currentLetterCase
     }
 
     if (GCompris.ApplicationSettings.isAudioVoicesEnabled &&
             GCompris.DownloadManager.haveLocalResource(
                 GCompris.DownloadManager.getVoicesResourceForLocale(locale))) {
         items.audioVoices.silence(100)
         playLetter(currentLetter)
     }
     items.buttonsBlocked = false;
 }
 
 function calculateFrequency() {
     var freq = [];
     for(var i = 0; i < words.length; i++) {
         var currentWord = words[i].translatedTxt;
         for(var j = 0; j < currentWord.length; j++) {
             var character = currentWord.charAt(j);
             //consider the character if it is not a space
             if(character != " ") {
                 if(freq[character]) {
                     freq[character]++;
                 }
                 else {
                     freq[character] = 1;
                 }
             }
         }
     }
     return freq;
 }
 
 function generateQuestions() {
     var freqArr = [];
     var ques = [];
 
     for(var character in frequency) {
         freqArr.push([character, frequency[character]]);
     }
 
     freqArr.sort(function(a, b) {return b[1] - a[1]});
 
     var limit = Math.min(10, freqArr.length);
     for(var i = 0; i < limit; i++) {
         ques.push(freqArr[i][0])
     }
     return ques;
 }
 
 function playLetter(letter) {
     items.audioVoices.append(GCompris.ApplicationInfo.getAudioFilePath("voices-$CA/"+locale+"/alphabet/"
                                                                        + Core.getSoundFilenamForChar(letter)))
 }
 
 function nextLevel() {
     items.score.stopWinAnimation();
     items.audioVoices.clearQueue()
     items.currentLevel = Core.getNextLevel(items.currentLevel, maxLevel);
     items.score.currentSubLevel = 0;
     initLevel();
 }
 
 function previousLevel() {
     items.score.stopWinAnimation();
     items.audioVoices.clearQueue()
     items.currentLevel = Core.getPreviousLevel(items.currentLevel, maxLevel);
     items.score.currentSubLevel = 0;
     initLevel();
 }
 
 function nextSubLevel() {
     if( items.score.currentSubLevel >= maxSubLevel) {
         items.bonus.good("flower");
     } else {
         initLevel();
     }
 }
 
 function checkAnswer() {
     items.buttonsBlocked = true
     var allCorrectSelected = true
     var modelEntry;
     var letterIndex;
     for(var i = 0; i < words.length; i++) {
         modelEntry = items.wordsModel.get(i);
         letterIndex = modelEntry.spelling.indexOf(currentLetter);
         if(letterIndex != -1 && modelEntry.selected == false) {
             allCorrectSelected = false;
             break;
         }
         if(letterIndex == -1 && modelEntry.selected == true) {
             allCorrectSelected = false;
             break;
         }
     }
     if(allCorrectSelected == true) {
         items.score.currentSubLevel++;
         items.score.playWinAnimation();
         items.audioEffects.play("qrc:/gcompris/src/core/resource/sounds/completetask.wav");
     }
     else {
         items.errorRectangle.startAnimation();
         items.audioEffects.play("qrc:/gcompris/src/core/resource/sounds/crash.wav");
    }
 }
 
 function checkWord(index) {
     var itemStatus = !items.wordsModel.get(index).selected;
     items.wordsModel.setProperty(index, "selected", itemStatus);
     return itemStatus;
 }