Ancient Brain
Code. Play. Teach. Learn. Research. Demo.

How to run Worlds

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

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

Try all of the above. They are working links.

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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.

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To close the run window

To close the run window:

• Click on the Close icon: Close
• 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.

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New tabs/windows

The following links open in new tabs/windows:

• Run
• Edit

Links on the following pages open in new tabs/windows:

• Run
• Edit

This is to protect the editor contents from being reset, and protect the canvas contents from being reset.

Worlds with the Web page API are an exception. Links open in the same window.

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Two servers

• Login pages are on the "main" server: ancientbrain.com

• Run windows are on the "run" server: run.ancientbrain.com

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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 on ancientbrain.com are safe.

• Run windows on run.ancientbrain.com are user-generated and 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.
• Check out who wrote it. See what else they wrote.

Please report misleading or malicious Worlds and Minds to: