Homework Assignment 7

A Simple Game of Catch

CS 2530
Intermediate Computing

Due: Friday, October 26, at 5:00 PM

Introduction

Now that that we have seen the Ball World and the Cannon Game, and even extended the Ball World, let's write our own little world. It will be a small step toward implementing classic video games like Pong. As primitive as Pong was, it was hugely popular!

Given the similarity of the new game world to the Cannon Game, you might want to use the Cannon Game as an inspiration or even a template for your solution.

Tasks

Create a simple game called Catch.

The window for a game of Catch looks something like this:

The game consists of a number of components:

• The black dot at the left is the pitcher. It launches ("throws") balls from a fixed location.


• The small rectangle at the right is the catcher. When a ball strikes the catcher, the player has caught it.


• The slider at the left controls the velocity of the ball. The higher the bubble is on the slider, the faster the ball. The lower the bubble, the slower the ball.


• The slider on the right controls the position of the catcher. The location of the catcher should roughly match the location of the bubble.


• The button at the bottom throws a ball.


• The message at the top tells the player how many balls have been thrown and caught.

The ball should bounce off the top and the bottom of the window, but not the wall behind the catcher. If it bounces past the catcher, it is out of play. (So, you should use a BoundedBall, or a variation of it.)

Be sure that your submission has at least ...

• ... a class named CatchFrame that models the above window and lets the user play the game.


• a class named Catch that contains nothing but a main() method, which creates an instance of CatchFrame and makes it visible.


• ... a file named readme.txt that documents briefly the major decisions you made while designing and implementing the game.

Feel free to add your own style to the game -- as long as your solution follows the guidelines above. Have as much fun as you are willing and able!

Deliverables

By the due date and time, submit a zipped file containing:

• readme.txt
• Catch.java
• CathFrame.java
• any other files you create or use

For your hardcopy, submit only your readme.txt file.

Be sure that your submission follows all homework submission requirements.