X-Git-Url: http://git.shiar.nl/sheet.git/blobdiff_plain/139cfe4ebde273208f91d401a2938330faf41c06..a8e02f8948b961a27b47965e0eab1fcc1c207915:/word/quiz.js

diff --git a/word/quiz.js b/word/quiz.js
index b98842f..146aff7 100644
--- a/word/quiz.js
+++ b/word/quiz.js
@@ -1,32 +1,30 @@
-class Quiz {
-	next() {
-		let word = this.words.shift();
-		let form = put(this.form,
-			'+img[src=$]+ul', `/data/word/en/${word[0]}.jpg`,
-		);
+Array.prototype.shuffle = function () {
+	for (let i = this.length - 1; i > 0; i--) {
+		const j = Math.floor(Math.random() * (i + 1)); // random index 0..i
+		[this[i], this[j]] = [this[j], this[i]]; // swap elements
+	}
+	return this;
+};
 
-		let answers = [word[2], this.words[1][2], this.words[2][2], this.words[3][2]]
-			.sort(() => {return .5 - Math.random()}) // shuffle
-		answers.forEach(suggest => {
-			let label = suggest.replace(/\/.*/, '');
-			let option = put(form, 'li', label, {onclick: () => {
-				if (suggest != word[2]) {
-					// incorrect
-					put(option, '.wrong');
-					return;
-				}
-				put(option, '.good');
-				window.setTimeout(() => this.next(), 500);
-			}});
-		});
+class WordQuiz {
+	dataselect(json) {
+		// find viable rows from json data
+		let rows = Object.values(json);
+		if (this.preset.level !== undefined) {
+			rows = rows.filter(row => row[1] <= this.preset.level);
+		}
+		return rows.shuffle();
 	}
 
-	constructor(dataurl) {
+	load(dataurl) {
+		this.preset = {};
 		fetch(dataurl).then(res => res.json()).then(json => {
-			this.form = document.getElementById('quiz');
-			this.words = Object.values(json)
-				.sort(() => {return .5 - Math.random()}) // shuffle
-			this.next();
+			this.words = this.dataselect(json)
+			this.setup();
 		});
 	}
-};
+
+	constructor(dataurl) {
+		this.load(dataurl);
+	}
+}