Hillary's Skeet Shoot

With a crack, Monica Lewinsky's new makeover is splattered to kingdom come - after a second Bill's smug mug follows. Kenneth Starr better watch out, I think he's next.

GOAL OF THE GAME: Shoot as many of the pictures as you can by clicking your mouse on them. They should burst into flames when hit. Your score is recorded in the upper left corner.

Although this game is humorous in nature, it is used to demonstrate some of the concepts learned in 6.837, Computer Graphics. The primary objective was to create a Sprite class which could be drawn onto a Playfield.  The Sprite class was then extended by an AnimatedSprite class, which incorporated movement. We were required to implement transparent pixels and clipping, which are both demonstrated by the flying skeets. We also check whether a given coordinate contains a non-transparent sprite pixel when calculating whether a click of the mouse hits a skeet.

I had hoped to add alpha channels, which would have let us do awesome transparency effects, but I ran out of time.  I might extend this project further independent of the class.

I originally separated the Java files into two distinct packages, one containing the core Sprite classes and another containing the Hillary skeet-shooting game which used the core classes, but unfortunately browsers such as Netscape and Internet Explorer have serious problems when displaying applets in packages. No packages were used for this version of the code:

HillaryApplet.java

The main applet for our game.

Playfield.java

This class is a background on which Sprites and AnimatedSprites can draw themselves.

AnimatedSprite.java

This is the animated version of a Sprite, which contains tracks (sequences) of states to be cycled through. The track and state number on a given track can be changed via public methods. This is primarily how the applet affected output to the screen.

AnimState.java

Class which contains information relavent to a single animation state on a track. The most important part of this is probably what Image to display.

AnimTrack.java

A sequence of AnimStates in a specified order.

Sprite.java

A Raster class that can be drawn on a Playfield.

Raster.java

A class which contains an array of pixel values.  These can then be converted into an Image and outputted to the screen.  All of the graphical objects above inherit from this.

Timed.java

A simple interface which says an object can be timed by a Timer.

Timer.java

A thread which periodically awakens and calls the tick method in an object that implements Timed. The sleep interval is variable.