Advanced Turtle Challenges

Draw a multi-point star - here is an example for 15 sides

for i in range(15):
turtle.right(180-(180/15))
turtle.forward(120)

turtle.exitonclick()

Can you adapt this to work for any number of sides, including odd and even numbers.
This is harder than it looks.

Draw a spiral

Hint: to draw a spiral you should gradually increase the amount that the turtle moves forward each turn.

You can do this by creating a variable

myVariable = 0

Then, every time that the turtle turns, add a fixed amount to the variable

myVariable = myVariable + 1

Draw a multi-coloured spiral

This is a bit harder.

First you need to set up a list of colour values

tcolours = ("red","green","blue","yellow")

tcolours is just a variable, but it's a special type of variable called a 'list'. It's a fixed list with four values:

tcolours[0] is "red"
tcolours[1] is "green"
tcolours[2] is "blue"
tcolours[3] is "yellow"

we can use this variable in our turtle.color() command. We can also use a control variable to change between 0,1,2 and 3 so that we get different colours

colorvalue = 0
for i in range(numberofsides):
colorvalue = colorvalue +1
if colorvalue > 3:
colorvalue = 0
turtle.color(tcolours[colorvalue])

Draw a clock face

For this challenge you'll need to use turtle.penup(), turtle.goto() and turtle.pendown(). You can also use turtle.stamp() to draw the turtle pictures.

The following line will put the turtle in the middle of the screen, without changing the direction that it's pointing:

turtle.goto(0,0)

The rest is up to you :-)

Tell the time - make a working clock

You can get the time from Python.
To do that you'll need to add an additional import command on the very first line of your program

import datetime, turtle

Then ask python to find the current time. I've used a variable called 'currenttime' but you can call it anything

currenttime = datetime.datetime.now()

From this you can find the hours and the minutes

currenttime.hour
currenttime.minute

There's more, you can get seconds, day of the week etc: