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Merge pull request #57 from LeftValues/better-backbutton
better backbutton
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| /* global i18n, loadTranslation, questions, setCookie, getCookie */ | ||
| let maxA, maxB, maxC, maxD, maxE, maxF, maxG // Max possible scores | ||
| maxA = maxB = maxC = maxD = maxE = maxF = maxG = 0 | ||
|
|
||
| const cookie = { | ||
| questionsAnswered: [], | ||
| questionNumber: 0, | ||
| a: 0, | ||
| b: 0, | ||
| c: 0, | ||
| d: 0, | ||
| e: 0, | ||
| f: 0, | ||
| g: 0 | ||
| } | ||
|
|
||
| function saveStats (answer) { | ||
| if (answer !== false) { | ||
| cookie.questionsAnswered.push({ | ||
| questionNumber: cookie.questionNumber, | ||
| answer | ||
| }) | ||
| } | ||
| setCookie('questionsAnswered', JSON.stringify(cookie.questionsAnswered)) | ||
| setCookie('questionNumber', cookie.questionNumber) | ||
| setCookie('a', cookie.a) | ||
| setCookie('b', cookie.b) | ||
| setCookie('c', cookie.c) | ||
| setCookie('d', cookie.d) | ||
| setCookie('e', cookie.e) | ||
| setCookie('f', cookie.f) | ||
| setCookie('g', cookie.g) | ||
| } | ||
|
|
||
| function loadStats () { | ||
| if (getCookie('questionsAnswered')) { | ||
| cookie.questionsAnswered = JSON.parse(getCookie('questionsAnswered')) | ||
| cookie.questionNumber = parseInt(getCookie('questionNumber')) || 0 | ||
| cookie.a = parseInt(getCookie('a')) || 0 | ||
| cookie.b = parseInt(getCookie('b')) || 0 | ||
| cookie.c = parseInt(getCookie('c')) || 0 | ||
| cookie.d = parseInt(getCookie('d')) || 0 | ||
| cookie.e = parseInt(getCookie('e')) || 0 | ||
| cookie.f = parseInt(getCookie('f')) || 0 | ||
| cookie.g = parseInt(getCookie('g')) || 0 | ||
| } | ||
| } | ||
|
|
||
| function resetStats () { | ||
| cookie.questionsAnswered = [] | ||
| cookie.questionNumber = 0 | ||
| cookie.a = 0 | ||
| cookie.b = 0 | ||
| cookie.c = 0 | ||
| cookie.d = 0 | ||
| cookie.e = 0 | ||
| cookie.f = 0 | ||
| cookie.g = 0 | ||
| saveStats(false) | ||
| window.location.reload() | ||
| } | ||
|
|
||
| function getLastAnswer (questionNumber) { | ||
| return cookie.questionsAnswered.find(answer => answer.questionNumber === questionNumber) | ||
| } | ||
|
|
||
| function initQuestion () { | ||
| loadStats() | ||
| console.log(cookie) | ||
| document.getElementById('question-text').innerHTML = i18n.getString(`question_${cookie.questionNumber}`) | ||
| document.getElementById('question-number').innerHTML = i18n.getString('quiz_question_of', { | ||
| count: cookie.questionNumber + 1, | ||
| total: Object.size(questions) | ||
| }) | ||
| if (cookie.questionNumber >= Object.size(questions)) { | ||
| resetStats() | ||
| } | ||
| if (getLastAnswer(cookie.questionNumber - 1) == null) { | ||
| document.getElementById('back_button').style.display = 'none' | ||
| document.getElementById('back_button_off').style.display = 'block' | ||
| } else { | ||
| document.getElementById('back_button').style.display = 'block' | ||
| document.getElementById('back_button_off').style.display = 'none' | ||
| } | ||
| } | ||
|
|
||
| function calculateStat (answer) { | ||
| cookie.a += answer * questions[`question_${cookie.questionNumber}`].a | ||
| cookie.b += answer * questions[`question_${cookie.questionNumber}`].b | ||
| cookie.c += answer * questions[`question_${cookie.questionNumber}`].c | ||
| cookie.d += answer * questions[`question_${cookie.questionNumber}`].d | ||
| cookie.e += answer * questions[`question_${cookie.questionNumber}`].e | ||
| cookie.f += answer * questions[`question_${cookie.questionNumber}`].f | ||
| cookie.g += answer * questions[`question_${cookie.questionNumber}`].g | ||
| } | ||
|
|
||
| function calculateScore (score, max) { | ||
| return (100 * (max + score) / (2 * max)).toFixed(1) | ||
| } | ||
|
|
||
| function nextQuestion (answer) { // eslint-disable-line no-unused-vars | ||
| calculateStat(answer) | ||
| cookie.questionNumber++ | ||
| saveStats(answer) | ||
|
|
||
| if (cookie.questionNumber < Object.size(questions)) { | ||
| initQuestion() | ||
| } else { | ||
| resetStats() | ||
| results() | ||
| } | ||
| } | ||
|
|
||
| function prevQuestion () { // eslint-disable-line no-unused-vars | ||
| const previousAnswer = getLastAnswer(cookie.questionNumber - 1) | ||
| if (previousAnswer === null) { | ||
| return | ||
| } | ||
| cookie.questionsAnswered = cookie.questionsAnswered.filter(answer => { | ||
| if (answer.questionNumber !== cookie.questionNumber) { | ||
| return answer | ||
| } | ||
| }) | ||
| cookie.questionNumber-- | ||
|
|
||
| calculateStat(previousAnswer) | ||
| saveStats(previousAnswer) | ||
| initQuestion() | ||
| } | ||
|
|
||
| function results () { | ||
| window.location.href = 'results.html' + | ||
| `?a=${calculateScore(cookie.a, maxA)}` + | ||
| `&b=${calculateScore(cookie.b, maxB)}` + | ||
| `&c=${calculateScore(cookie.c, maxC)}` + | ||
| `&d=${calculateScore(cookie.d, maxD)}` + | ||
| `&e=${calculateScore(cookie.e, maxE)}` + | ||
| `&f=${calculateScore(cookie.f, maxF)}` + | ||
| `&g=${calculateScore(cookie.g, maxG)}` | ||
| } | ||
| loadTranslation().then(() => { | ||
| initQuestion() | ||
| for (let i = 0; i < Object.size(questions); i++) { | ||
| maxA += Math.abs(questions[`question_${i}`].a) | ||
| maxB += Math.abs(questions[`question_${i}`].b) | ||
| maxC += Math.abs(questions[`question_${i}`].c) | ||
| maxD += Math.abs(questions[`question_${i}`].d) | ||
| maxE += Math.abs(questions[`question_${i}`].e) | ||
| maxF += Math.abs(questions[`question_${i}`].f) | ||
| maxG += Math.abs(questions[`question_${i}`].g) | ||
| } | ||
| }) |