Write the code to have the turtle draw a regular polygon with the specified number of sides and specified side length
computer science
Description
You must use the starter IntelliJ and must make use of EndWorld
(in place of World) and AnimatedTurtle (instead of Turtle).
Starter Project
HelloTurtlesStarter.zip
Download, unzip, and open the starter project in IntelliJ.
Demo
Below is a video showing how the program should work, sans
drawName, as it is trivial and also does not require any user input.
hello-turtles-demo.mp4Play media
comment.
menu, solution, & main
The code for displaying a menu and allowing the user to pick an
option is already written in the menu() method. In the solution() method,
a call to the menu() method has been provided. You must write the code
that gets the appropriate user input based off the selection returned by menu
and then calls the appropriate method (e.g. drawName, drawPolygon, etc.).
User Input
As shown in the demo you are required to read in the parameters
for the different methods by prompting the user graphically. Special
Topic 4.5 of our textbook shows how to use JOptionPane.showInputDialog
to read input from a user and convert it into an integer. You are NOT required
to do input validation (i.e., you are NOT required to ensure that the user
enters only a number). You are strongly encouraged, but
not required, to create a separate method named getInt that takes a prompt and
returns the integer entered by the user and then make calls to that method for
reading the user input.
Drawing Your Name
In the method drawName, make the turtle draw out your first
name. If your first name has more than 5 letters, you may use a nickname
or the first 5 letters of your name.
Drawing A Regular Polygon
Write the code to have the turtle draw a regular polygon with
the specified number of sides and specified side length.
Drawing Multiple Polygons
In the manyPolygons methods, write the code to have
the turtle draws the specified number of regular polygons, each starting at the
same place, however,
after each polygon is drawn the turtle turns 360.0 / numPolys degrees.
Some calls to manyPolygons to try out:
·
manyPolygons(t, 45, 3,
100)
·
manyPolygons(t, 60,
30, 20)
Drawing Radiating Lines
The first image was generated calling the radial method and
specifying 15 line segments and a line length of 100.
