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167 lines
3.3 KiB
167 lines
3.3 KiB
/**
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* Inisialisasi variabel global / konfigurasi
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*/
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var level = 1, // level awal
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max_digit = 2, // digit jawaban maksimal
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delay = 3, // delay dalam detik jika benar
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strike, kunci, jawab; // variabel global
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/**
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* Main function
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*/
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$(function() {
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/**
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* Inisialisasi program
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*/
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strikeZero();
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kunci = initialize();
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/**
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* Mencegah fokus keluar dari input jawaban
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*/
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$('#jawaban').blur(function(){
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$(this).focus();
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});
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/**
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* Cek yang diketik oleh user
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*/
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$("#jawaban").on('keyup', function(e) {
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var string_val = $(this).val();
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/**
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* Menyembunyikan tanda cek jawaban jika jawaban dihapus
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*/
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if(string_val.length<1) {
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$('#sign img').hide();
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}
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/**
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* Memastikan jawaban tidak melebihi maksimal digit
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*/
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if(string_val.length>max_digit) {
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$('#jawaban').val(string_val.substring(0,max_digit));
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}
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/**
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* User menekan tombol enter
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*/
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if (e.keyCode === 13) {
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jawab = parseInt(string_val);
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/**
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* Jawaban benar
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*/
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if(kunci==jawab) {
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$('#cross-sign').hide();
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$('#check-sign').show();
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$('#footer').append('<img src="img/check.png">');
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strike++;
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setTimeout(function() {
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/**
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* Naik level
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*/
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if(strike>=rules[level-1].strike) {
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level++;
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strikeZero();
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}
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kunci = initialize();
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}, (delay * 1000));
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/**
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* Jawaban salah
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*/
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} else {
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$('#cross-sign').show();
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strikeZero();
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}
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};
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/**
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* Ulang dari awal
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*/
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$(document).on('click', '#restart', function(){
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location.reload();
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});
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});
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});
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/**
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* Fungsi inisialisasi program
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* @returns {Number} kunci jawaban
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*/
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function initialize() {
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/**
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* Membuat soal
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*/
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var bil01 = randomInt(rules[level-1].min, rules[level-1].max),
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bil02 = randomInt(rules[level-1].min, rules[level-1].max),
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bil03; // kunci jawaban
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/**
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* Soal penjumlahan
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*/
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if(rules[level-1].type) {
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$('#soal').text(bil01 + ' + ' + bil02 + ' = ');
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bil03 = bil01 + bil02;
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/**
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* Soal pengurangan
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*/
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} else {
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if(bil01<bil02) {
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var tmp=bil01;bil01=bil02;bil02=tmp;
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}
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$('#soal').text(bil01 + ' - ' + bil02 + ' = ');
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bil03 = bil01 - bil02;
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}
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/**
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* Set tampilan awal
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*/
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$('#sign img').hide();
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$('#level').text('Level ' + level);
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$('#jawaban').focus().val('');
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return bil03;
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}
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/**
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* Fungsi mereset strike, sekaligus pengecekan level maksimal
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* @returns {void}
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*/
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function strikeZero() {
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/**
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* Level maksimal
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*/
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if(level>rules.length) {
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$('body').css('background-color', '#000');
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$('#container').html('<img id="fireworks" src="img/fireworks.gif">');
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$('#footer').html('<button id="restart">RESTART</button>');
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level = 1;
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/**
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* Reset strike
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*/
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} else {
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$('#footer').html('<div id="level">Level ' + level + '</div>');
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strike = 0;
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}
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}
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/**
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* Fungsi membuat angka acak
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* @param {Number} min nilai minimum
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* @param {Number} max nilai maksimum
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* @returns {Number} nilai acak
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*/
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function randomInt(min, max) {
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return Math.floor(Math.random() * (max - min + 1) + min);
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}
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