The Penny Pitch Game

Overview: The Penny Pitch program is reminiscent of a carnival game where pennies are tossed onto a board with squares containing prizes. Once a penny lands on a square, the player receives the prize on that square. In this simulation of the game, when the player clicks Toss, the computer randomly chooses one of the 25 squares on the board. The player then receives the points on that square and a 'P' replaces the value on the board to indicate that a penny has landed there. If during a toss, a penny has already landed on a square, then nothing happens and the board remains the same and no points are gained. In the game you are writing, the player will get 20 tosses. After each toss the total points are updated and after the 20th toss, the total points and a "Game Over" message appear in a message box. The goal of our game is just to get as many points as possible. The reset button is only necessary if a person wants to start a new game before a game is finished. The game should be automatically reset after the 20th turn.

Assignment: Write the code for a Penny Pitch applet which will replicate the applet at the right. Here are the steps you will need to follow:

Step 1. Go to email and find my email for the Square.java PennyPitch.java starter file.

Step 2. Save the PennyPitch.java to your applets folder in your Eclipse workspace on your hard drive and the PennyPitch.html file to your Applets folder on the WebServ.

Step 3. Start by writing the code for the model class Square in Square.java. This class only defines the property of a square. The Square class does not define or utilize a two-dimensional array in any way. The two-dimensional array of 25 squares named board has 5 rows and 5 columns and will be declared and instantiated in the view class file PennyPitch.java.  Here is what you need to do in the Square class:

• The Square class will define a Square object that has two instance variables. A String instance variable value and a boolean instance variable chosen.
• We will  not write a default constructor.
• The Square class needs a constructor that receives one parameter to initialize the value instance variable to a parameter and the boolean instance variable chosen will be set to false without using a parameter. This will be the constructor used the most in this program.
• We will also write a second constructor that receives two parameters to initialize the value instance variable and the boolean instance variable chosen to String and boolean parameters.
• So here is a summary of what you need to do in the Square class:
• Declare the two instance variables value and chosen.
• Write the first constructor that initializes value to a String parameter and chosen directly to false.
• Write the second constructor that initializes value and chosen to the parameters passed it.
• Write the getValue() accessor method which returns the value stored in the instance variable value.
• Write the getChosen() accessor method which returns the value stored in the instance variable chosen.  It will hold either true to indicate that a penny has already landed there or false to indicate that one hasn’t landed there.
• Write the setChosen() mutator method that will be used you to change the value of the instance variable chosen. So in our program, when a penny lands on a square, then we will call this method and set chosen to true.
• Write the setValue() method that will be used you to change the value of the instance variable value.
• toString() is provided for you.  It is meant only for troubleshooting and testing.

Step 4. Write the code for the view class in PennyPitch.java. This is the driver and will define the GUI interface for the applet.  In it you will instantiate a two-dimensional array to hold square objects and process input from the user to run the game as specified in the web page description. Don't panic! You won't get this done in a couple of minutes. Take your time and think through the problem. You will write code for the following methods in PennyPitch.java:

• initGame - initializes the game to 0 points and 20 turns and instantiates the two dimensional array of Square objects.
• actionPerformed - processes the button actions according to the description and how the demo applet behaves.
• displayBoard - displays the current status of the board at the beginning of the game and after each turn.

Step 5. Export the two files into a jar file named PennyPitch.jar and place it into your applets folder on the WebServ and then use the accompanying PennyPitch.html file to load your applet on the WebServ.