To run: python ./chess.py
- Dominic Holmes (hdominic@seas)
The project is a version of chess, implemented on the command line. The game flow is as follows:
- A user invokes the program and types in the name for each player.
- Player 1 is always white, so they go first.
- They choose the piece they'd like to move: ex "A2" moves the leftmost white pawn.
- All possible moves from the selected piece are computed. If no possible moves exist for that piece, repeat step 3. Special movement rules apply when a pawn is moved the first time and for other unique situations. The pieces are computed with a recursive method, following each path outward for each piece until obstacles are encountered. Piece movement behavior is encoded with a "delta" attribute, which allows us to encode piece movement behavior in a space-efficient way.
- The user chooses the space for the move: ex: "A4" moves the pawn up 2 spaces.
- The new board is printed. Win conditions are checked. If no win happens, we continue. If a king is taken, the game ends with the winning player's name being printed.
In order of appearance:
- The Board class contains information about piece position, as well as print statements.
- The RowCol and Move classes are helper classes to clean up movement code.
- The Piece class contains movement generation functions, including a function that generates possible moves based on the piece type and the given "move deltas" that each piece includes.
- The Pawn, Rook, King, etc classes contain delta encodings for each piece; this describes their movement behavior. The Pawn class movement had to be encoded manually, because its behavior is so different and situational.
- The Game class contains functions for actually running the game and interacting with the command line user.
- At the very end of the file,
new_game()is called.