Review: Turtle Drawing #

Welcome to CS10! We hope you’re excited for what we have planned this year! 😄

Let’s review by taking it back to CS9 Turtle drawings!

[0] Set up #

🌐 Github Repo: github.com/Making-with-Code/lab_turtle_review

💻 cd into the lab

cd lab_turtle_review_yourgithubusername

👾 💬 Windows Users

We suggest not copying the path command, and instead using cd and ls to ensure you are in the correct making_with_code folder.

💻 Install Tkinter We’ll need this for our drawings.

brew install python-tk

💻 Enter the Poetry Shell. Remember, we run this command at the start of each lab, but only when we are inside a lab folder.

poetry shell

👾 💬 Exiting the poetry shell

When you want to exit the shell, you can type exit or ^D

[1] Create a Turtle Drawing #

💻 Using the starter code in turtle_drawing.py create a drawing that includes at least 3 of CS concepts below:

Variables
Loops
Conditionals
Lists
Dictionaries
Functions with parameters

A Few Helpful Functions #

Function	Input	Example Use	Explanation
forward	amount	`forward(100)`	Moves the turtle forward by the specified amount
backward	amount	`backward(100)`	Moves the turtle backward by the specified amount
right	angle in degrees	`right(45)`	Turns the turtle clockwise by the specified angle
left	angle in degress	`left(45)`	Turns the turtle counter clockwise by the specified angle
color	colorname	`color('red')`	Sets the color for drawing. Use “red”, “black”, etc. Here’s a list of all the colors.
speed	number from 0-10	`speed(0)`	Determines the speed at which the turtle moves around the window. 1 for slowest, 3 for normal speed, 10 for fast, 0 for fastest.
pendown	None	`pendown()`	Puts down the turtle/pen so that it draws when it moves
penup	None	`penup()`	Picks up the turtle/pen so that it doesn’t draw when it moves
pensize	width	`pensize(4)`	Sets the width of the pen for drawing
setheading	angle	`setheading(90)`	Sets the pen to the 0th degree
circle	size	`circle(10)`	Sets the radius of the circle
goto	x, y	`goto(90,0)`	Moves turtle to a given coordinate
begin_fill	None	`begin_fill()`	Marks the start of the color fill
end_fill	None	`end_fill()`	Marks the end of the color fill
fillcolor	colorname	`fillcolor('purple')`	Sets the color of the fill

[2] Deliverables #

⚡✨

🤔 Remember, at the end of each class we push to Github

💻 Push your work to Github:

git status

git add -A

git status

git commit -m “describe your drawing and your process here”

be sure to customize this message, do not copy and paste this line

git push