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import pygame
import time
import random
# 初始化pygame
pygame.init()
# 颜色定义
white = (255, 255, 255)
black = (0, 0, 0)
red = (213, 50, 80)
green = (0, 255, 0)
blue = (50, 153, 213)
# 游戏窗口设置
dis_width = 800
dis_height = 600
dis = pygame.display.set_mode((dis_width, dis_height))
pygame.display.set_caption('贪吃蛇游戏')
# 游戏时钟
clock = pygame.time.Clock()
# 蛇的大小和速度
snake_block = 20
snake_speed = 15
# 字体设置
font_style = pygame.font.SysFont("simhei", 25)
score_font = pygame.font.SysFont("simhei", 35)
def show_score(score):
value = score_font.render("得分: " + str(score), True, black)
dis.blit(value, [0, 0])
def draw_snake(snake_block, snake_list):
for i, x in enumerate(snake_list):
color = blue if i == len(snake_list)-1 else green
pygame.draw.rect(dis, color, [x[0], x[1], snake_block, snake_block])
def message(msg, color):
mesg = font_style.render(msg, True, color)
dis.blit(mesg, [dis_width / 6, dis_height / 3])
def game_loop():
game_over = False
game_close = False
# 蛇的初始位置
x1 = dis_width / 2
y1 = dis_height / 2
# 蛇的移动方向
x1_change = 0
y1_change = 0
# 蛇的身体
snake_list = []
length_of_snake = 1
# 食物位置
foodx = round(random.randrange(0, dis_width - snake_block) / snake_block) * snake_block
foody = round(random.randrange(0, dis_height - snake_block) / snake_block) * snake_block
while not game_over:
while game_close:
dis.fill(white)
message("游戏结束! 按Q退出或按C重新开始", red)
show_score(length_of_snake - 1)
pygame.display.update()
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_q:
game_over = True
game_close = False
if event.key == pygame.K_c:
game_loop()
for event in pygame.event.get():
if event.type == pygame.QUIT:
game_over = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT and x1_change == 0:
x1_change = -snake_block
y1_change = 0
elif event.key == pygame.K_RIGHT and x1_change == 0:
x1_change = snake_block
y1_change = 0
elif event.key == pygame.K_UP and y1_change == 0:
y1_change = -snake_block
x1_change = 0
elif event.key == pygame.K_DOWN and y1_change == 0:
y1_change = snake_block
x1_change = 0
# 边界检测
if x1 >= dis_width or x1 < 0 or y1 >= dis_height or y1 < 0:
game_close = True
x1 += x1_change
y1 += y1_change
dis.fill(white)
pygame.draw.rect(dis, red, [foodx, foody, snake_block, snake_block])
snake_head = []
snake_head.append(x1)
snake_head.append(y1)
snake_list.append(snake_head)
if len(snake_list) > length_of_snake:
del snake_list[0]
# 碰撞检测
for x in snake_list[:-1]:
if x == snake_head:
game_close = True
draw_snake(snake_block, snake_list)
show_score(length_of_snake - 1)
pygame.display.update()
# 吃到食物
if x1 == foodx and y1 == foody:
foodx = round(random.randrange(0, dis_width - snake_block) / snake_block) * snake_block
foody = round(random.randrange(0, dis_height - snake_block) / snake_block) * snake_block
length_of_snake += 1
clock.tick(snake_speed)
pygame.quit()
quit()
game_loop()
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