How to run Worlds

Worlds that can be run are usually indicated by a world image to click on (or touch tap), like these:

Blank Three.js World
745 runs ♦ 2 likes
By Starter user  
Created: 20 Nov 2016
Modified: 25 Mar 2019
A simple starter World. An Array of spheres. Painted with textures. Random motion.
Complete Infinit...
264 runs ♦ 0 likes
By Enhanced  
Created: 9 Aug 2018
Modified: 26 Aug 2018
This program was made by Nathan Bonnard. In this world, you can generate an infinite world ! Bu...
Simple World
1091 runs ♦ 2 likes
By Starter user  
Created: 1 Oct 2016
Modified: 25 Mar 2019
Simple World with a Mind-controlled agent, randomly-moving enemy, paint blocks with texture.

Sometimes the run is done by clicking a run button, like: and:

Try all of the above. They are working links.

A run opens a new tab or window

  • The run takes place on the client side (on your local machine, in the browser) not on the server side.
  • A run opens a new tab or new window.

  • Camera control: Depending on the API, it may be possible for the user to control the camera in the run window. Try mouse drag (or touch drag on a touch screen) to move the camera. Try mouse scroll (or touch pinch on a touch screen) to zoom in and out.

To close the run window

To close the run window:
  • Click on the Close icon:
  • Or click on the normal tab or window close icon.
  • Or use a keyboard shortcut like Ctrl-W.
  • See keyboard shortcuts for closing tabs and windows on different operating systems.

New tabs/windows

In general, the following links open in new tabs/windows:
  • Run
  • Edit
Links on the following pages open in new tabs/windows:
  • Run
  • Edit
  • Starter tutorials

Warning: A run is like a personal website

All users should be advised that a run window is essentially a third party personal website.

  • Login pages are on the server:
    These pages are safe.

  • Run windows are on the server:
    These pages are unknown, like a personal website.

Our philosophy is to allow the upload of almost any JavaScript, subject to some basic checks. We do not want to put limits on the imagination of authors. Authors can write to the run window, redesign it and insert links into it. Essentially, World authors and Mind authors "own" the run window, as if it was their website.

So you should treat each run as if it is a personal website that you have landed on after following a link. Now the Web model is mature and safe, so there is no need to worry. But follow the usual rules:

  • Do not enter any passwords into a run window (even Ancient Brain passwords). Do not type any sensitive data into a run window.
  • Follow any links in it with caution. Watch out for it redirecting to another server.
  • Read any user comments. Check out who wrote it.

Please report misleading or malicious Worlds and Minds to:

Run "logged in"

You login to the 1st server:
Runs take place on the 2nd server:   where there is no login.

However, some runs can have a limited form of "login" where they are associated with your account. In "logged in" runs, the World can use AB functions to save data on the server in your account. This would be some data linked to your use of that World (e.g. your position in a game, or some object you created in the World). The data is saved in files like this in your uploads directory:

The run can later read back from that file. (In fact, any run can read that file. Like all your uploads, it is public.)

Here is an example of a World with "save data" and "restore data" when you run logged in.

Rules for when a run is "logged in"

Run launch Is the run logged in
You are not logged in. No
You are logged in, and run is launched from World page or Mind page or Edit page. Yes
You are logged in, and run is launched from other page. No

Different run URLs

When you run "logged in":
  • The World can save data.
  • The run URL only works for you.
  • Do not share this URL. It will not work for other people. Share the plain run URL instead.
When you run not logged in:
  • The World cannot save data.
  • The plain run URL works for everyone.
  • You can share this URL and it will work.

The background is a program, showing the JavaScript graphics used on this site.

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