flying witches overview

Flying Witches Overview

screenshot of the project (inactive buttons)

To use this project, you need the free MicroWorlds Web Player, but you do not need to know anything about MicroWorlds.

You can control the speed and direction of the three witches with the sliders. The "heading?" slider can be set to any number from -180 to 180. What heading makes the witches fly straight up? straight down? to the right? to the left? Can you make them fly in circles?
If you own MicroWorlds and would like the create the project yourself from scratch, here are the procedures:

* * * * * * * * * *
procedures for FLYING WITCHES

Please refer to the screenshot to see the button, slider, and turtles needed.
The "fly" button is set to repeat the procedure "many times."
* * * * * * * * * *
to fly
ask [t2 t3 t4] [seth heading?
ifelse heading? < 0 [setsh "witch2] [setsh "witch1]
fd speed]
end