一些朋友应该有玩过吃豆人游戏，就是通过移动吃豆人吃豆豆来获得分数，同时要躲避怪物这样的玩法。小编认为是比较有趣的，因此给大家分享使用Python实现简单的吃豆人游戏代码，感兴趣的朋友可以参考学习。

        效果展示：

        程序简介

        1.使用pygame模组
        2.在material目录下有一些素材
        3.吃豆人的游戏主体
        4.吃豆人怪物的AI（未使用深度学习）

        主要代码

        main.py

import pygame, sys
from pygame.locals import *
from unit import user, enemy
import random

#constant initialize
FPS = 60
BLOCK_SIZE = 24
WIDTH = 29
HEIGHT = 15
WINDOW_WIDTH = WIDTH * BLOCK_SIZE
WINDOW_HEIGHT = HEIGHT * BLOCK_SIZE
MAP_NAME = "./material/map.maze"
BGM_NAME = "./material/bgm.ogg"
BLOCK_IMAGE = "./material/block.png"
FOOD_IMAGE = "./material/food.png"
GAMEOVER_IMAGE = "./material/gameover.png"
SERVER_PORT = 30000
ENEMY_COUNT = 4
OX = 1
OY = 1
DELAY = 8

#pygame initialize
pygame.init()
display = pygame.display.set_mode((WINDOW_WIDTH, WINDOW_HEIGHT))
clock = pygame.time.Clock()
block_image = pygame.image.load(BLOCK_IMAGE)
food_image = pygame.image.load(FOOD_IMAGE)
gameover_image = pygame.image.load(GAMEOVER_IMAGE)
bgm = pygame.mixer.music.load(BGM_NAME)
scene = "game"
unit_list = []
game_map = []

#map initialize
def load_map(filename):
	global game_map
	game_map.clear()
	file = open(filename, 'r')
	for line in file.readlines():
		game_map.append(list(line.strip()))
		pass
	pass

#set passport
def through(position):
	x = position[0]
	y = position[1]
	in_range = (x >= 0 and x < WIDTH) and (y >= 0 and y < HEIGHT)
	in_space = (not game_map[y][x] == '1')
	return (in_range and in_space)
	pass

#gameover?
def check_gameover(user_pos, enemy_pos):
	global scene
	gameover = (enemy_pos[0] == user_pos[0] and enemy_pos[1] == user_pos[1])
	if gameover:
		scene = "gameover"
		pass
	return gameover
	pass

#gameover
def gameover():
	pygame.mixer.music.stop()
	keys = pygame.key.get_pressed()
	if keys[K_RETURN]:
		initialize()
		pass
	display.fill((0, 0, 0))
	x = (WINDOW_WIDTH-gameover_image.get_width())/2
	y = (WINDOW_HEIGHT-gameover_image.get_height())/2
	display.blit(gameover_image, (x, y))
	pygame.display.update()
	pass

#unit initialize
def initialize_unit():
	unit_list.clear()
	ox = random.randint(1, WIDTH - 2)
	oy = random.randint(1, HEIGHT - 2)
	while not through((ox, oy)):
		ox = random.randint(1, WIDTH - 2)
		oy = random.randint(1, HEIGHT - 2)
	unit_list.append(user(OX, OY))
	for i in range(0, ENEMY_COUNT):
		enemy_color = i % 4
		ox = random.randint(1, WIDTH - 2)
		oy = random.randint(1, HEIGHT - 2)
		while not through((ox, oy)):
			ox = random.randint(1, WIDTH - 2)
			oy = random.randint(1, HEIGHT - 2)
		unit_list.append(enemy(enemy_color, ox, oy))
		pass
	pass

#initialize
def initialize():
	global scene
	load_map(MAP_NAME)
	initialize_unit()
	scene = "game"
	pygame.mixer.music.play(-1)

#system update
def system_update():
	clock.tick(FPS)
	for event in pygame.event.get():
		if event.type == pygame.QUIT:
			sys.exit()
	pass

#update control
control_clock = [0, DELAY]
def control_update():
	#user control
	if control_clock[0] > control_clock[1]:
		user = unit_list[0]
		keys = pygame.key.get_pressed()
		passport = False
		pos = user.position
		if keys[K_UP]: 
			pos = user.move(through(user.next(0)))
		elif keys[K_RIGHT]: 
			pos = user.move(through(user.next(1)))
		elif keys[K_DOWN]:
			pos = user.move(through(user.next(2)))
		elif keys[K_LEFT]:
			pos = user.move(through(user.next(3)))
			pass
		game_map[pos[1]][pos[0]] = '0'
		#enemy control
		u_pos = unit_list[0].position
		for index in range(1, len(unit_list)):
			enemy = unit_list[index]
			if check_gameover(u_pos, enemy.position): break
			enemy.track(u_pos)
			passport = through(enemy.next())
			enemy.move(passport)
			while not passport:
				enemy.clockwise()
				passport = through(enemy.next())
				enemy.move(passport)
			pass
		control_clock[0] = 0
		pass
	else:
		control_clock[0] += 1
		pass
	pass

#update screen
def screen_update():
	display.fill((0, 0, 0))
	for i in range(0, HEIGHT):
		for j in range(0, WIDTH):
			x = j * BLOCK_SIZE
			y = i * BLOCK_SIZE
			if game_map[i][j] == '1':
				display.blit(block_image, (x, y))
			elif game_map[i][j] == '4':
				display.blit(food_image, (x, y))
				pass
			pass
		pass
	for unit in unit_list:
		unit.update()
		x = unit.position[0] * BLOCK_SIZE
		y = unit.position[1] * BLOCK_SIZE
		display.blit(unit.image, (x, y), unit.image_rect())
	pygame.display.update()
	pass

#first
initialize()

#main loop
while True:
	system_update()
	if scene == "game":
		control_update()
		screen_update()
	else:
		gameover()
		pass
	pass

        unit.py

import pygame
import math
import random

USER_IMAGE = "./material/user.png"
ENEMY_IMAGE = [("./material/enemy%d.png" % i) for i in range(1, 5)]

class unit():
	def __init__(self, filename):
		super(unit, self).__init__()
		self.image = pygame.image.load(filename)
		self.clock = [0, 5]
		self.direction = 0
		self.position = [1, 1, 1, 1]
		self.index = 0
		self.source_rect = 0
		pass

	def update(self):
		self.animation_update()
		pass

	def animation_update(self):
		self.clock[0] += 1
		if self.clock[0] > self.clock[1]:
			if self.index < 4:
				self.index += 4
			else:
				self.index -= 4
			self.source_rect = self.image_rect()
			self.clock[0] = 0
			pass
		pass

	def move(self, passport):
		if passport:
			pos = self.position[:]
			self.position[0] = self.position[2]
			self.position[1] = self.position[3]
		else:
			self.position[2] = self.position[0]
			self.position[3] = self.position[1]
			pos = self.position
			pass
		return pos
		pass

	def next(self):
		self.ahead()
		return (self.position[2], self.position[3])
		pass

	def turn(self, direction):
		self.direction = direction % 4
		self.index = self.direction
		pass

	def ahead(self):
		if self.direction == 0:
			self.position[3] -= 1
		elif self.direction == 1:
			self.position[2] += 1
		elif self.direction == 2:
			self.position[3] += 1
		elif self.direction  == 3:
			self.position[2] -= 1
		pass

	def image_rect(self):
		w = self.image.get_width()
		h = self.image.get_height()
		ox = math.floor(w / 4 * (self.index % 4)) 
		oy = math.floor(h / 2 * math.floor(self.index / 4))
		return pygame.Rect((ox, oy), (24, 24))

class user(unit):
	def __init__(self, x, y):
		super(user, self).__init__(USER_IMAGE)
		self.position = [x, y, x, y]
		pass

	def next(self, direction):
		self.turn(direction)
		self.ahead()
		return (self.position[2], self.position[3])
		pass

class enemy(unit):
	def __init__(self, id, x, y):
		filename = ENEMY_IMAGE[id]
		super(enemy, self).__init__(filename)
		self.position = [x, y, x, y]
		pass

	def track(self, user_pos):
		rand_dir = [1,2,3,4]
		self.turn(random.choice(rand_dir))
		pass

	def clockwise(self):
		self.turn(self.direction + 1)
		pass

class enemy_user(unit):
	def __init__(self, x, y):
		filename = ENEMY_IMAGE[0]
		super(enemy_user, self).__init__(filename)
		self.position = [x, y, x, y]
		pass

	def move(self, x, y):
		self.position[0] = x
		self.position[1] = y
		pass

        总结：

        以上就是python 实现简单的吃豆人游戏的介绍，同样觉得有意思的朋友可以参考上述代码来实现和完善，例如怪物的AI，时间的判定等等。最后，希望大家阅读完这篇文章能有所收获。

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