Computer Science 15-111 (Sections A & B), Spring 2007

Homework #5

Due: Wed 14-Feb-2007 at 8:00pm (online submission).

Place this program in hw5.zip. Remember to just submit your .java files, and not your .class files, random .jpg files, or miscellaneous Eclipse or other IDE-related files.

Tetris
Write the game of Tetris, as described in class this week. This is left quite open-ended, so you can make broad decisions about the visual design of the game and the structure of your code. This is also a Pair Programming Lite assignment (see syllabus for details).

To receive a C, your program must:

1. Display a board.

2. Drop random pieces, including all the standard pieces of a standard Tetris game.

3. Pause and unpause the game in response to the ‘p’ key being pressed.

4. Move the falling pieces left and right in response to left and right arrow key presses.

5. Stack the pieces at the appropriate time (when they would otherwise collide with another piece or fall off the board)

To receive a B, your program must do all that, and:

6. Rotate pieces 90° counterclockwise in response to up-arrow key presses (and do this rotation properly, including not rotating if it would result in the piece rotating offscreen or colliding with another piece)

7. Remove rows as they are filled up anywhere on the board

8. Keep score, including receiving more points when multiple rows are removed at once than if the same number of rows were removed one-at-a-time.

9. End the game when a newly-falling piece immediately collides with a piece on the board.

10. Have well-designed, well-commented code.

To receive an A, your program must do all that, and:

11. Have a really nice, understandable, helpful, visually-pleasing GUI

12. Have at least two additional clever, well-designed, and well-documented features. (The documentation is critical – it must be obvious from a comment at the head of your file what these two features are and how they are implemented.)

To receive BONUS: You may add additional features for up to 10 points of bonus. For example, a piece editor allowing new pieces to be designed would be a fine feature!