CST112 Project 3: Chapter 4

Exercise 4-7, p. 58

This exercise from the textbook should be completed with the following modifications:
- Use (or update) the "creature" that you completed for Projects 1 & 2.
- Size of output window should be 400 by 400 pixels.
- Creature should move on a diagonal, down and to the right from the upper-left corner of the output window toward the lower-right corner, by one (1) pixel each time it draws. (Ignore the mouse pointer.)
- When the mouse button is clicked:
  1. Assign random values between zero (0) and 255 for the three colors that control the fill color of the main portion of the "creature"
  2. Assign a random number between 70 and 150 for the width of the "creature"
  3. Subtract ten (10) from the background color of the output window so that it gets a little darker each time the mouse button is clicked
- When any key on the keyboard is pressed:
  1. The creature should change directions; if it is going to the right and down, reverse and start going left and up; if already going left and up, reverse and start going right and down
  2. Display the latest key value in the message window.
- Click Play Project 3 to see these effects.
DOCUMENTATION: Always begin each program with comment lines that give your name and the project identification, then briefly says what your code is supposed to do (if it works!)
```
	// Joe Bloggs, Project #3 (p3.pde):	 
	//	Diagonal move, with color changes.
```
Also, add some text to your sketch, giving your name and providing some sort of title for it. For example:
```
	  text( "Project3:  Diagonal move, with color changes", 40,10);
	  text( "Joe Bloggs", 10,230);
```
The completed project with the "Processing" sketch file (the ".pde" file) should be submitted electronically, by creating a file named "p3.pde" in your folder, and pasting your source code into it.