2021-02-24 05:23:34 -05:00
|
|
|
|
|
|
|
|
<head>
|
|
|
|
|
<title>
|
|
|
|
|
ARITHMETICS
|
|
|
|
|
</title>
|
|
|
|
|
<style>
|
|
|
|
|
* {
|
|
|
|
|
font-size: 24px;
|
|
|
|
|
}
|
|
|
|
|
body {
|
|
|
|
|
background: black;
|
|
|
|
|
}
|
|
|
|
|
input {
|
|
|
|
|
font-family: monospace;
|
|
|
|
|
background: black;
|
|
|
|
|
color: gray;
|
|
|
|
|
border: 0px;
|
|
|
|
|
}
|
|
|
|
|
*:focus {
|
|
|
|
|
outline: none !important;
|
|
|
|
|
border: 0px;
|
|
|
|
|
}
|
|
|
|
|
</style>
|
|
|
|
|
</head>
|
|
|
|
|
<body>
|
|
|
|
|
<font color="gray">
|
|
|
|
|
<form id="core" name="core" action="arithmetics.html">
|
|
|
|
|
<pre>
|
|
|
|
|
|
|
|
|
|
<font color="yellow">#x#</font>
|
|
|
|
|
+<font color="yellow">#z#</font>
|
|
|
|
|
---------
|
|
|
|
|
|
|
|
|
|
= <input autocomplete="off" autofocus name="i" value="" size="2">
|
|
|
|
|
|
|
|
|
|
Control: <font color="#bbbbbb">#f#</font>
|
|
|
|
|
Score: <font color="green">#s#</font>
|
|
|
|
|
|
|
|
|
|
<input name="tm" value="#NOW#" size="3" type="hidden">
|
|
|
|
|
<input type="submit" size="2" value="o">
|
|
|
|
|
</pre>
|
|
|
|
|
</form>
|
|
|
|
|
<script>
|
|
|
|
|
|
|
|
|
|
// CHANGE THE MAX_NUMBER HERE
|
|
|
|
|
var MAX_NUMBER=10;
|
|
|
|
|
|
|
|
|
|
function lpad(number,sz) {
|
|
|
|
|
if (sz==undefined) {
|
|
|
|
|
sz=4;
|
|
|
|
|
}
|
2022-08-25 16:15:28 -04:00
|
|
|
var maxnum=Math.pow(10,sz)-1;
|
|
|
|
|
var str_shift=Array(sz).join(" ");
|
2021-02-24 05:23:34 -05:00
|
|
|
if (number<=maxnum) { number = (str_shift+number).slice(-sz); }
|
|
|
|
|
///console.log(number+" "+maxnum+" "+sz+"|"+str_shift+"|");
|
|
|
|
|
return number;
|
|
|
|
|
}
|
|
|
|
|
function doc_replace(needle,heystack) {
|
|
|
|
|
if (document.replace) {
|
|
|
|
|
document.replace(needle,heystack);
|
|
|
|
|
} else {
|
|
|
|
|
document.getElementsByTagName("html")[0].innerHTML=document.getElementsByTagName("html")[0].innerHTML.replace(needle,heystack);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
function findGetParameter(paramName) {
|
|
|
|
|
var res = null;
|
2022-08-25 16:15:28 -04:00
|
|
|
var loc=document.location.href;
|
2021-02-24 05:23:34 -05:00
|
|
|
//console.log(loc);
|
2022-08-25 16:15:28 -04:00
|
|
|
var elems=loc.split('?')[1];
|
2021-02-24 05:23:34 -05:00
|
|
|
if (!elems) { return(res); }
|
|
|
|
|
//console.log(elems);
|
2022-08-25 16:15:28 -04:00
|
|
|
var par=elems.split('&');
|
|
|
|
|
for (var i=0;i<par.length;i++) {
|
|
|
|
|
var key=par[i].split('=');
|
2021-02-24 05:23:34 -05:00
|
|
|
if (key[0]==paramName) {
|
|
|
|
|
res=key[1];
|
|
|
|
|
break;
|
|
|
|
|
//console.log("key: "+key[0]+" val: "+key[1]);
|
|
|
|
|
}
|
|
|
|
|
}
|
2022-08-25 16:15:28 -04:00
|
|
|
|
2021-02-24 05:23:34 -05:00
|
|
|
return(res);
|
|
|
|
|
}
|
|
|
|
|
function proc_var(prnname,lodname,savename,saveval) {
|
2022-08-25 16:15:28 -04:00
|
|
|
var x = null;
|
2021-02-24 05:23:34 -05:00
|
|
|
if (lodname!=null) {
|
|
|
|
|
x = localStorage.getItem(lodname);
|
|
|
|
|
//console.log("Loading "+lodname+" val: "+x);
|
|
|
|
|
} else {
|
|
|
|
|
x=saveval;
|
|
|
|
|
}
|
|
|
|
|
if (x==null || !x) { x="@"+prnname+"@"; }
|
|
|
|
|
doc_replace('#'+prnname+'#',lpad(x));
|
|
|
|
|
if (savename!==undefined) {
|
|
|
|
|
localStorage.setItem(prnname,saveval);
|
|
|
|
|
//console.log("Saving "+prnname+" val: "+saveval);
|
|
|
|
|
}
|
|
|
|
|
return(x);
|
|
|
|
|
}
|
|
|
|
|
function get_rand_var(xname) {
|
2022-08-25 16:15:28 -04:00
|
|
|
var x = Math.round(Math.random()*(MAX_NUMBER));
|
2021-02-24 05:23:34 -05:00
|
|
|
localStorage.setItem(xname,x);
|
|
|
|
|
doc_replace('#'+xname+'#',lpad(x));
|
|
|
|
|
return(x);
|
|
|
|
|
}
|
|
|
|
|
function prepare_task() {
|
|
|
|
|
// print and get input begin
|
|
|
|
|
// get previous random number
|
2022-08-25 16:15:28 -04:00
|
|
|
var a=proc_var('a','x');
|
|
|
|
|
var z=proc_var('u','z');
|
2021-02-24 05:23:34 -05:00
|
|
|
// generate random number
|
2022-08-25 16:15:28 -04:00
|
|
|
var x=get_rand_var('x');
|
|
|
|
|
var y=get_rand_var('z');
|
2021-02-24 05:23:34 -05:00
|
|
|
// get previous user input
|
2022-08-25 16:15:28 -04:00
|
|
|
var p=proc_var('p','i');
|
2021-02-24 05:23:34 -05:00
|
|
|
return [a,z];
|
|
|
|
|
}
|
|
|
|
|
function get_user_input() {
|
|
|
|
|
// get user input
|
|
|
|
|
var i = findGetParameter("i");
|
|
|
|
|
proc_var('i',null,'i',i);
|
|
|
|
|
// print and get input end
|
|
|
|
|
return(i);
|
|
|
|
|
}
|
|
|
|
|
function evaluate_result(a,z,i) {
|
|
|
|
|
// feedback loop begin
|
2022-08-25 16:15:28 -04:00
|
|
|
var correctAnswer=0;
|
2021-02-24 05:23:34 -05:00
|
|
|
//console.log("z: " + z + " a: " + a + " i: " + i);
|
|
|
|
|
if (Number(z) + Number(a) == Number(i)) { // user inputs prev number
|
|
|
|
|
doc_replace('#f#',' OK');
|
|
|
|
|
doc_replace('#bbbbbb','#00ee00');
|
|
|
|
|
correctAnswer=1;
|
|
|
|
|
} else {
|
|
|
|
|
doc_replace('#f#','NOK');
|
|
|
|
|
doc_replace('#bbbbbb','#ee0000');
|
|
|
|
|
}
|
|
|
|
|
// feedback loop end
|
|
|
|
|
return(correctAnswer);
|
|
|
|
|
}
|
|
|
|
|
function updateScore(gain) {
|
2022-08-25 16:15:28 -04:00
|
|
|
var keyname="score";
|
|
|
|
|
var score=localStorage.getItem(keyname);
|
2021-02-24 05:23:34 -05:00
|
|
|
if (!score || score==null
|
|
|
|
|
|| typeof(score)=="NaN"
|
|
|
|
|
|| score=="NaN"
|
|
|
|
|
) {
|
|
|
|
|
score=0;
|
|
|
|
|
}
|
|
|
|
|
score=Number(score);
|
|
|
|
|
score+=gain;
|
|
|
|
|
localStorage.setItem(keyname,score.toString());
|
|
|
|
|
return(score);
|
|
|
|
|
}
|
|
|
|
|
function process_result(cor) {
|
2022-08-25 16:15:28 -04:00
|
|
|
var score=updateScore(cor);
|
2021-02-24 05:23:34 -05:00
|
|
|
doc_replace('#s#',lpad(score,6));
|
|
|
|
|
}
|
|
|
|
|
function get_timestamp() {
|
|
|
|
|
var now = new Date();
|
|
|
|
|
var res = now.toISOString().replace(/\D/g, "");;
|
|
|
|
|
return(res);
|
|
|
|
|
}
|
|
|
|
|
function prevent_form_resubmission() {
|
2022-08-25 16:15:28 -04:00
|
|
|
var ts=get_timestamp();
|
2021-02-24 05:23:34 -05:00
|
|
|
document.replace('#NOW#',ts);
|
|
|
|
|
}
|
|
|
|
|
prevent_form_resubmission();
|
2022-08-25 16:15:28 -04:00
|
|
|
var res=prepare_task();
|
|
|
|
|
var inp=get_user_input();
|
|
|
|
|
var cor=evaluate_result(res[0],res[1],inp);
|
2021-02-24 05:23:34 -05:00
|
|
|
process_result(cor);
|
|
|
|
|
</script>
|
|
|
|
|
</font>
|
|
|
|
|
</body>
|
|
|
|
|
</html>
|
