Moving the Whole Board

Explore how to implement the move_board function for a 4x4 2048 game in Python. Learn to reuse left move logic with transpose and reverse helpers for all directions. Understand how to keep functions pure, integrate AI support for coding and testing, and wire interactive moves to enable game play.

We'll cover the following...

Step 0: Starter code
Step 1: Move left and transformations
Step 2: Implement transpose() and reverse_rows()
Step 3: Implement move_board() using transformations
Step 4: Unit tests for move_board
Step 5: Wire move_board into main() for interactive moves

By the end of this lesson, you will:

Implement move_board(board, direction) -> (new_board, gained_score, moved_flag).
Reuse compress_row and merge_row to implement a left move.
Use reverse and transpose transformations to reuse left-move logic for right/up/down.
Keep move_board pure (returning a new board instead of mutating the original).
Wire move_board into main() so the user can actually move tiles with w/a/s/d.
Use AI to:
- Help describe the transformation strategy
- Generate helper functions (transpose, reverse_rows)
- Refine their move_board implementation.

Moving the Whole Board

Step 0: Starter code