Drag the background!

Step 10. The map() Function

Click the World to run it. You will see that background color changes as you move the mouse left-right. This uses the handy P5 function map() which maps a number from one range to another.

World

Tutorial 2.4
The map() Function
The background is a program, showing the JavaScript graphics used on this site.
The globes light up when you log in.
 
Font:

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