Restart Course, but keep value of one variable

Jun 26, 2023

Stefan K
By Stefan K

I have a course with a lot of variables in use.
Resetting all used variables manually is error prone, so I am using the "restart course"-trigger that sets back everything.

It is kind of a quiz with a restricted amount of tries.
Therefor, I have a number-variable, with a default-value of 3, and substract 1 from that variable for each try.
When the variable is 0, no more tries are left and the quiz ends.

The problem is: restarting the course also sets back the variable that counts the number of tries.

I do can change the variable after the restart-trigger and set it to a certain number. But as it is already set back to its default value (3), substracting does not work anymore (as it will always end up being 2).

Does anyone know a way to keep the value of my variable, while setting back all other variables? Or some other work-around?

6 Replies
Jürgen Schoenemeyer
10 months ago06/26/23 at 10:30 am (UTC)

you can save/restore variables in the global window object with some lines of javascript

example: var1 is permanent, var 2 not

trigger on button click restart (before execute "restart course")

var value = GetPlayer().GetVar("var1");
window.savedValue = value;

trigger on start timeline ot the first slide

var value = window.savedValue;

if( value !== undefined ){
  GetPlayer().SetVar("var1", value );
  window.savedValue = undefined;
}

result:

https://360.articulate.com/review/content/2c375a55-d99a-4f05-b6e0-8e9eaa9ff2d1/review

 

Jürgen Schoenemeyer
10 months ago06/27/23 at 2:59 pm (UTC)

here is an example where the counter is permanently saved in localStorage

trigger on button click restart

var value = GetPlayer().GetVar("var1");
localStorage.setItem("countTest12345", value);

trigger on start timeline ot the first slide

var value = localStorage.getItem("countTest12345");
if( value !== null ){
  GetPlayer().SetVar("var1", parseInt(value) ); 
}

https://360.articulate.com/review/content/3c4845c0-6b8b-46d8-b25f-a3f581b53752/review

this remains until you delete the Local Storage manually

CAUTION: the solution does not protect against manipulation by the learner - you can simply overwrite the value in the browser

 

Stefan K
10 months ago07/10/23 at 1:04 pm (UTC)

Hi Jürgen,

May I ask you one more thing:

I have got this countdown JS:

var player = GetPlayer();
     var zeit = player.GetVar("zeit");
     

    var downloadTimer = setInterval(function(){
          if(zeit < 2){
            clearInterval(downloadTimer);
          }
          zeit -= 1;
              var player = GetPlayer();
              player.SetVar("zeit", zeit);

    }, 1000);

It works fine, but now I am looking for a way to reset the counter.


As it is now, the counter counts down to 0.
But if the user has successfully completed the task within the given time, I need to reset the counter for the next task.

I tried changing the value of "zeit", as this is the variable that JS loads.
But unfortunately that does not work. I attached a sample file.

Jürgen Schoenemeyer
10 months ago07/10/23 at 3:31 pm (UTC)

here a small patch

function clearTimer(){
  if( window.downloadTimer > 0 ){
    clearInterval( window.downloadTimer );
    window.downloadTimer = -1;
    console.log( "stopped" );
  }
}

clearTimer();

window.downloadTimer = setInterval( function(){
  var zeit = GetPlayer().GetVar("zeit");
  
  console.log( "zeit", zeit );
  
  if(zeit < 2){
    clearTimer();
  }
  if(zeit > 0){
    zeit -= 1;
  }
  GetPlayer().SetVar( "zeit", zeit );

}, 1000);

important: save the timer number in the window object, so other scripts can interrupt the timer

https://360.articulate.com/review/content/c8452454-0f9d-4144-bde2-d681821a76aa/review

hint: use for formating scripts here in the forum the function "Formats > Blocks > Pre" not "Formats > Inline > Code"

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