File indexing completed on 2024-05-05 15:52:59

 /* GCompris - binary_bulb.js
  *
  * SPDX-FileCopyrightText: 2018 Rajat Asthana <rajatasthana4@gmail.com>
  *
  * Authors:
  *   "RAJAT ASTHANA" <rajatasthana4@gmail.com>
  *
  *   SPDX-License-Identifier: GPL-3.0-or-later
  */
 .pragma library
 .import QtQuick 2.12 as Quick
 .import "qrc:/gcompris/src/core/core.js" as Core
 
 var numberOfLevel
 var items
 var dataset
 var url = "qrc:/gcompris/src/activities/binary_bulb/resource/"
 var tutorialInstructions = [
             {
                 "instruction": qsTr("This activity teaches how to convert decimal numbers to binary numbers."),
                 "instructionQml" : "qrc:/gcompris/src/activities/binary_bulb/resource/tutorial1.qml"
             },
             {
                 "instruction": qsTr("Computers use transistors to count and transistors have only two states, 0 and 1. Mathematically, these states are represented by 0 and 1, which makes up the binary system of numeration."),
                 "instructionQml" : "qrc:/gcompris/src/activities/binary_bulb/resource/tutorial2.qml"
             },
             {
                 "instruction": qsTr("In the activity 0 and 1 are simulated by bulbs, switched on or off."),
                 "instructionQml": "qrc:/gcompris/src/activities/binary_bulb/resource/tutorial3.qml"
             },
             {
                 "instruction": qsTr("Binary system uses these numbers very efficiently, allowing to count from 0 to 255 with 8 bits only."),
                 "instructionQml": "qrc:/gcompris/src/activities/binary_bulb/resource/tutorial4.qml"
             },
             {
                 "instruction": qsTr("Each bit adds a progressive value, corresponding to the powers of 2, ascending from right to left: bit 1 → 2⁰=1 , bit 2 → 2¹=2 , bit 3 → 2²=4 , bit 4 → 2³=8 , bit 5 → 2⁴=16 , bit 6 → 2⁵=32 , bit 7 → 2⁶=64 , bit 8 → 2⁷=128."),
                 "instructionQml": "qrc:/gcompris/src/activities/binary_bulb/resource/tutorial5.qml"
             },
             {
                 "instruction":  qsTr("To convert a decimal 5 to a binary value, 1 and 4 are added."),
                 "instructionQml": "qrc:/gcompris/src/activities/binary_bulb/resource/tutorial6.qml"
             },
             {
                 "instruction": qsTr("Their corresponding bits are set to 1, the others are set to 0. Decimal 5 is equal to binary 101."),
                 "instructionQml": "qrc:/gcompris/src/activities/binary_bulb/resource/tutorial7.qml"
             },
             {
                 "instruction": qsTr("This image will help you to compute bits' value."),
                 "instructionQml": "qrc:/gcompris/src/activities/binary_bulb/resource/tutorial5.qml"
             }
         ]
 var levelDataset
 
 function start(items_, dataset_) {
     items = items_
     dataset = dataset_.get()
     numberOfLevel = dataset.length
     items.currentLevel = Core.getInitialLevel(numberOfLevel)
 }
 
 function stop() {
 }
 
 function resetBulbs() {
     for(var i = 0; i < items.numberOfBulbs; i++) {
         items.bulbs.itemAt(i).state = "off"
     }
 }
 
 function initializeValues() {
     items.currentSelectedBulb = -1
     items.numberSoFar = 0
     items.numberToConvert = levelDataset[items.score.currentSubLevel]
 }
 
 function equalityCheck() {
     items.buttonsBlocked = true
     if(items.numberSoFar == items.numberToConvert) {
         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 nextSubLevel() {
     if (items.score.currentSubLevel >= items.score.numberOfSubLevels) {
         items.bonus.good("lion")
     } else {
         resetBulbs()
         initializeValues()
         items.buttonsBlocked = false
     }
 }
 
 function changeState(index) {
     var currentBulb = items.bulbs.itemAt(index)
     if(currentBulb.state == "off") {
         currentBulb.state = "on"
         items.numberSoFar += currentBulb.value
     }
     else {
         currentBulb.state = "off"
         items.numberSoFar -= currentBulb.value
     }
 }
 
 function initLevel() {
     items.errorRectangle.resetState()
     items.score.numberOfSubLevels = dataset[items.currentLevel].numbersToBeConverted.length
     items.score.currentSubLevel = 0
     items.numberOfBulbs = dataset[items.currentLevel].bulbCount
     levelDataset = Core.shuffle(dataset[items.currentLevel].numbersToBeConverted)
     initializeValues()
     resetBulbs()
     items.buttonsBlocked = false
 }
 
 function nextLevel() {
     items.score.stopWinAnimation()
     items.currentLevel = Core.getNextLevel(items.currentLevel, numberOfLevel);
     initLevel();
 }
 
 function previousLevel() {
     items.score.stopWinAnimation()
     items.currentLevel = Core.getPreviousLevel(items.currentLevel, numberOfLevel);
     initLevel();
 }