diff options
| author | Peter Ward <pwar3236@usyd.edu.au> | 2010-01-05 06:56:13 +1100 | 
|---|---|---|
| committer | Peter Ward <pwar3236@usyd.edu.au> | 2010-01-05 06:56:13 +1100 | 
| commit | f788bdcf63d14dd97f0802391b0676ca84c900ce (patch) | |
| tree | 9d98fbf8ef0ab30ee573fadf9eeff4cf723feb25 /oldbots/peter_smart.py | |
| parent | 62527ef65ec78124f97426ba1e7f44fafe1be134 (diff) | |
Renamed old bots to process bots.
Diffstat (limited to 'oldbots/peter_smart.py')
| -rwxr-xr-x | oldbots/peter_smart.py | 131 | 
1 files changed, 0 insertions, 131 deletions
| diff --git a/oldbots/peter_smart.py b/oldbots/peter_smart.py deleted file mode 100755 index b099cdd..0000000 --- a/oldbots/peter_smart.py +++ /dev/null @@ -1,131 +0,0 @@ -#!/usr/bin/env python -"""New and improved bot, OPTIMISED!!""" - -import random -import sys - -DEBUG = False - -# Show tracebacks, then pause for debugging. -if DEBUG: -    sys_excepthook = sys.excepthook -    def excepthook(*args, **kwargs): -        sys_excepthook(*args, **kwargs) -        import time -        time.sleep(10) -    sys.excepthook = excepthook - -EMPTY_TILE = '.' -APPLE_TILE = '*' - -WIDTH, HEIGHT, SNAKE_BODY = raw_input().split() -WIDTH = int(WIDTH) -HEIGHT = int(HEIGHT) - -SNAKE_BODY = SNAKE_BODY.lower() -SNAKE_HEAD = SNAKE_BODY.upper() - -HEADX = None -HEADY = None - -SNAKE_LENGTH = 0 - -def get_cell(board, x, y): -    if x < 0 or x >= WIDTH or y < 0 or y >= HEIGHT: -        raise KeyError, 'out of range.' -    return board[y][x] - -BOARD = [] -for y in xrange(HEIGHT): -    row = raw_input() -    for x, char in enumerate(row): -        if char == SNAKE_HEAD: -            HEADX = x -            HEADY = y -        elif char == SNAKE_BODY: -            SNAKE_LENGTH += 1 -    BOARD.append(row) - -MOVES = ( -    (-1, 0, 'l'), -    (1, 0, 'r'), -    (0, -1, 'u'), -    (0, 1, 'd') -) - -def get_score(x, y, n, done=None): -    if done is None: -        done = set() - -    done.add((x, y)) - -    score = 0 -    explore = False - -    # See if the cell exists. -    try: -        square = get_cell(BOARD, x, y) -    except KeyError: -        return 0 - -    # Give some extra points for getting an apple. -    if square == APPLE_TILE: -        explore = True -        score += 50 - -    # Yay - it's empty! -    elif square == EMPTY_TILE: -        explore = True -        score += 10 - -    elif square.islower(): -        score -= 1 - -    if explore and n > 0: -        # Explore n-1 cells further. -        for dx, dy, move in MOVES: -            nx = x + dx -            ny = y + dy - -            if (nx, ny) in done: -                continue - -            subscore = get_score(nx, ny, n - 1, done) -            score += subscore / 10 - -    return score * n - -max_score = None -max_moves = [] - -for dx, dy, move in MOVES: -    score = 0 - -    x = HEADX + dx -    y = HEADY + dy - -    n = (SNAKE_LENGTH + 4) / 2 -    score = get_score(x, y, n) - -#    print 'Score for', move, '=', score - -    # Suicide protection squad! -    try: -        square = get_cell(BOARD, x, y) -    except KeyError: -        continue -    else: -        if square not in (APPLE_TILE, EMPTY_TILE): -            continue - -    if score == max_score: -        max_moves.append(move) -    elif max_score is None or score > max_score: -        max_score = score -        max_moves = [move] - -if max_moves: -    print random.choice(max_moves) -else: -    raise Exception, "No suitable moves found!" - | 
