Meet Logonator

Logonator is a rogue, time-travelling android that is changing events in human history. Use code to stop him!

In computing lessons to come, we will work through the first five levels in The Time Crimes of Logonator in Purple Mash. You can go at your own pace and see how far you get. You will need to write programs in Logo.

What is Logo?

Logo is a programming language for creating digital art. You write code that controls the movement of a drawing pointer on the screen. Think of it like the tip of a pen.

The pen pointer follows these rules:

1. It can only go forwards or backwards. You have to tell it how far.
2. It can turn to point a different way. You have to tell what angle to turn.

You move the pointer with the commands fd (forward), bk (back). You turn it with the commands rt (right turn) and lt (left turn).

Logo has commands that let you do more:

1. You can repeat a list of commands. You have to say how many times.
2. You can change the pen colour. You have to give a colour name or code.
3. You can change the pen size. You have to say how many pixels.
4. You can put up the pen so that the pointer moves without drawing.
5. You can put the back back down.

Over To You

Try the first lesson in Time Crimes (or the next one if you’ve already saved some progress). If you zoom ahead and complete these quickly, just carry on. Logonator must be defeated!