project_game/gamefiles/chaser.py

58 lines
2.0 KiB
Python

from helpers import add, distance, get_occupant
from random import random, choice
class Man_Chaser:
"""Represents a man_chaser, coming after the man. Modelled after the beast in the Beast game"""
character = "H"
color = "yellow"
probability_of_moving = 0.03
probability_of_random_move = 0.2
deadly = True
snack=False
mine = False
chaser = True
def __init__(self, position):
self.position = position
def play_turn(self, game):
if self.should_move():
possible_moves = []
for position in self.get_adjacent_positions():
if game.is_empty(position) and game.on_board(position):
possible_moves.append(position)
if possible_moves:
if self.should_move_randomly():
self.position = choice(possible_moves)
else:
self.position = self.choose_best_move(possible_moves, game)
#chaser catching the man score penalty is covered in man.py unlike the beast game
def get_adjacent_positions(self):
"""Returns a list of all adjacent positions, including diagonals
"""
positions = []
for i in [-1, 0, 1]:
for j in [-1, 0, 1]:
if i or j:
positions.append(add(self.position, (i, j)))
return positions
def should_move(self):
return random() < self.probability_of_moving
def should_move_randomly(self):
return random() < self.probability_of_random_move
def choose_best_move(self, possible_moves, game):
man = game.get_agent_by_name("man")
move_distances = [[distance(man.position, move), move] for move in possible_moves]
shortest_distance, best_move = sorted(move_distances)[0]
return best_move
def die(self, game):
"""Removes the chaser if the man runs into him, man death is described in man.py"""
game.remove_agent(self)