Operation Manual

A beginner’s guide to Scratch

Notes:Notes:

Going round in circles

Now you have ﬁlled the background, let’s add a circle to the surface.

>>> surface.ll(deepblue)

>>> position = (250,250)

>>> radius = 50

>>> linewidth = 2

>>> pygame.draw.circle(surface, mintcream, position, radius,

linewidth)

Update again to see the circle added.

>>> pygame.display.update()

Try changing some of the numbers for drawing the circle and see what happens.

Remember to update after each circle you add to the surface.

Notes:

Tip...

Sometimes, we

have more code

to write than ﬁts

on one line. When

you see a line of

code such as the

last one here, that

goes onto a new

line without a

prompt or indent,

that is really just

one line of code.

Don’t press

Return to start a

new line, just let

it word wrap and

Python will work

it out for you.