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 /* GCompris - lightsoff.js
 *
 * SPDX-FileCopyrightText: 2014 Stephane Mankowski <stephane@mankowski.fr>
 *
 * Authors:
 *   Bruno Coudoin <bruno.coudoin@gcompris.net> (GTK+ version)
 *   Stephane Mankowski <stephane@mankowski.fr> (Qt Quick port)
 *
 *   SPDX-License-Identifier: GPL-3.0-or-later
 */
 .import "qrc:/gcompris/src/core/core.js" as Core
 
 var levels
 var numberOfLevel
 var items
 var table
 var soluc
 var showSoluce = false
 var size = 5
 
 var url = "qrc:/gcompris/src/activities/lightsoff/resource/"
 
 function start(items_) {
     items = items_
     numberOfLevel = items.levels.length
     items.currentLevel = Core.getInitialLevel(numberOfLevel)
     initLevel()
 }
 
 function stop() {}
 
 function initLevel() {
 
     /* Is it a static or dynamic level ? */
     if (items.levels[items.currentLevel].dynamic) {
         /* Dynamic */
         size = items.levels[items.currentLevel].size
         table = new Array(size * size)
         soluc = new Array(size * size)
         for (var i = 0; i < size * size; ++i) {
             table[i] = 0
             soluc[i] = 0
         }
 
         for (var j = 0; j < items.currentLevel; ++j) {
             switchLightNoCheck(Math.floor(size * size * Math.random()))
         }
     } else {
         /* Static */
         size = items.levels[items.currentLevel].size
         table = items.levels[items.currentLevel].level.slice(0)
         soluc = items.levels[items.currentLevel].solution.slice(0)
     }
     showSoluce = false
     items.modelTable.clear()
     items.nbCell = size
     refreshModel()
     checkResult()
 }
 
 function nextLevel() {
     items.currentLevel = Core.getNextLevel(items.currentLevel, numberOfLevel);
     initLevel()
 }
 
 function previousLevel() {
     items.currentLevel = Core.getPreviousLevel(items.currentLevel, numberOfLevel);
     initLevel()
 }
 
 function switchLightNoCheck(index) {
     /* Switch the selected item */
     table[index] = 1 - table[index]
 
     /* Switch the soluce */
     soluc[index] = 1 - soluc[index]
 
     /* Switch neighbor left */
     if (index % size !== 0)
         table[index - 1] = 1 - table[index - 1]
 
     /* Switch neighbor right */
     if (index % size !== size - 1)
         table[index + 1] = 1 - table[index + 1]
 
     /* Switch neighbor up */
     if (index > size - 1)
         table[index - size] = 1 - table[index - size]
 
     /* Switch neighbor down */
     if (index < size * size -size)
         table[index + size] = 1 - table[index + size]
 }
 
 function refreshModel() {
     for (var i = 0; i < size * size; ++i) {
         items.modelTable.set(i, { 'lighton': table[i],  'soluce': showSoluce ? soluc[i] : 0})
     }
 }
 
 function switchLight(index) {
     /* Switch the selected item */
     switchLightNoCheck(index)
 
     /* Refresh the lights */
     refreshModel()
 
     /* Check the result */
     checkResult()
 }
 
 function checkResult() {
     /* Check the result */
     var nb = 0
     table.forEach(function (entry) {
         nb += entry
     })
 
     if (nb === 0) {
         items.blockClicks = true
         items.bonus.good("tux")
     }
 
     /* Check the soluce */
     items.nbCelToWin = nb
 }
 
 function solve() {
     showSoluce = !showSoluce
 
     /* Refresh the lights */
     refreshModel()
 }
 
 function windowPressed(index) {
     audioEffects.play('qrc:/gcompris/src/core/resource/sounds/scroll.wav')
     switchLight(index)
 }