前言
家人们！你们身边有没有出现这些现象，或者说你就是这大军中的一员呢？
比如这样：
这样：
好像我们身边的都有这么一群人曾经已经沉浸在这个机（gui）智(chu)游戏当中，说到这，你不会
不知道贪吃蛇大作战吧！就让小编来给你们科（hui）普（gu）一下吧！
《球球版— 贪吃蛇蛇 》
贪吃蛇大作战的玩家需要控制蛇（即自己）在屏幕内吃到小豆子，每吃一个身体都会变长，而蛇头
碰到其他贪吃蛇就会死亡，并变身成为大豆子，吃掉这些大豆子身体的蛇可以迅速变长。当成长到
一定地步，看到的满屏都会是自己的身体，不禁感叹一声：这都是朕辛苦打下的江山啊！尔等臣民
皆须跪伏在朕的脚下！
今天小编会带大家写一款简易款的《球球版— 贪吃蛇蛇》送给大家！希望大家喜欢🎄
环境配置：
Python3、 Pycharm 、Pygame以及部分自带的模块。
第三方库的安装：pip  install pygame
效果展示:
游戏开始：
玩儿了一会儿：
游戏撞墙结束：
代码演示：
1）食物类
即是随机生成的单个球球食物。
class Food(MySprite):
def __init__(self):
MySprite.__init__(self)
image = pygame.Surface((32,32)).convert_alpha()
image.fill((255,255,255,0))
pygame.draw.circle(image, (150,0,0), (16,16), 16, 0)
self.set_image(image)
MySprite.update(self, 0, 30)
self.X = random.randint(0,23) * 32
self.Y = random.randint(0,17) * 32
2）绘制🐍
绘制蛇蛇以及吃到球球相应增加。
class SnakeSegment(MySprite): #画蛇方法，一个个的圆形，draw.circle
def __init__(self,color=(50,50,50)):
MySprite.__init__(self)
image = pygame.Surface((32,32)).convert_alpha()
image.fill((255,255,255,0))
pygame.draw.circle(image, color, (16,16), 16 ,0)
self.set_image(image)
MySprite.update(self, 0, 30)
class Snake():
def __init__(self):
self.velocity = Point(-1,0)
self.old_time = 0
head = SnakeSegment((200,100,0)) #画蛇
head.X = 12*32
head.Y = 9*32
self.segments = list() #放入列表
self.segments.append(head)
self.add_segment() #添加蛇头
self.add_segment()
def update(self,ticks):
if ticks > self.old_time + step_time:
self.old_time = ticks
#移动身体（改变位置）
for n in range(len(self.segments)-1, 0, -1):
self.segments[n].X = self.segments[n-1].X
self.segments[n].Y = self.segments[n-1].Y
#移动蛇头
self.segments[0].X += self.velocity.x * 32
self.segments[0].Y += self.velocity.y * 32
def draw(self,surface):
for segment in self.segments:
surface.blit(segment.image, (segment.X, segment.Y))
def add_segment(self):
last = len(self.segments)-1
segment = SnakeSegment()
start = Point(0,0)
if self.velocity.x < 0:
start.x = 32
elif self.velocity.x > 0:
start.x = -32
if self.velocity.y < 0:
start.y = 32
elif self.velocity.y > 0:
start.y = -32
segment.X = self.segments[last].X + start.x
segment.Y = self.segments[last].Y + start.y
self.segments.append(segment)
def get_current_direction():
global head_x,head_y #蛇头位置设置为全局变量
first_segment_x = snake.segments[1].X//32
first_segment_y = snake.segments[1].Y//32
def get_food_direction(): #吃到食物时，身长增加
global head_x,head_y #蛇头位置设置为全局变量
food = Point(0,0)
for obj in food_group:
food = Point(obj.X//32,obj.Y//32)
3）初始化
def game_init():
global screen, backbuffer, font, timer, snake, food_group #设置全局变量
pygame.init()
screen = pygame.display.set_mode((24*32,18*32)) #分辨率适配
pygame.display.set_caption("球球版—贪吃蛇蛇")
font = pygame.font.Font(None, 30)
timer = pygame.time.Clock()
backbuffer = pygame.Surface((screen.get_rect().width,screen.get_rect().height))
#画蛇
snake = Snake()
image = pygame.Surface((60,60)).convert_alpha()
image.fill((255,255,255,0))
pygame.draw.circle(image, (80,80,220,70), (30,30), 30, 0)
pygame.draw.circle(image, (80,80,250,255), (30,30), 30, 4)
#挑战：添加食物
food_group = pygame.sprite.Group()
food = Food()
food2 = Food()
food3 = Food()
food_group.add(food, food2, food3)
game_init()
game_over = False
last_time = 0
auto_play = False #初始化时关闭自动
step_time = 400
4）主程序
while True:
timer.tick(30)
ticks = pygame.time.get_ticks()
#event section
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
keys = pygame.key.get_pressed()
if keys[K_ESCAPE]:
pygame.quit()
sys.exit()
elif keys[K_UP] or keys[K_w]:
snake.velocity = Point(0,-1)
elif keys[K_DOWN] or keys[K_s]:
snake.velocity = Point(0,1)
elif keys[K_LEFT] or keys[K_a]:
snake.velocity = Point(-1,0)
elif keys[K_RIGHT] or keys[K_d]:
snake.velocity = Point(1,0)
elif keys[K_SPACE]:
step_time -= 10
if game_over and keys[K_RETURN]: #按回车重来
game_over=False
snake = Snake()
image = pygame.Surface((60,60)).convert_alpha()
image.fill((255,255,255,0))
pygame.draw.circle(image, (80,80,220,70), (30,30), 30, 0)
pygame.draw.circle(image, (80,80,250,255), (30,30), 30, 4)
step_time = 400
if not game_over:
snake.update(ticks)
food_group.update(ticks)
hit_list = pygame.sprite.groupcollide(snake.segments, \
food_group, False, True)
if len(hit_list) > 0:
food_group.add(Food())
snake.add_segment()
for n in range(1, len(snake.segments)):
if pygame.sprite.collide_rect(snake.segments[0], snake.segments[n]):
game_over = True
head_x = snake.segments[0].X//32
head_y = snake.segments[0].Y//32
if head_x < 0 or head_x > 24 or head_y < 0 or head_y > 18:
game_over = True
backbuffer.fill((100,100,200))
snake.draw(backbuffer)
food_group.draw(backbuffer)
screen.blit(backbuffer, (0,0))
if not game_over:
print_text(font, 0, 0, "Length " + str(len(snake.segments)))
print_text(font, 0, 20, "Position " + str(snake.segments[0].X//32) + \
"," + str(snake.segments[0].Y//32))
else:
print_text(font, 0, 0, "GAME OVER")
print_text(font, 0, 20, "Please press the 'return' button to continue")
pygame.display.update()
总结
好了，今天的文章就到这里，又是正能量满满的一天！让我们下期再见！
需要源码的小伙伴儿记得滴滴我即可免费的哈！所以文章的都在！
完整的源码：滴滴我即可啦！
Original: https://blog.csdn.net/xy258009/article/details/121675628
Author: 嗨！栗子同学
Title: Pygame小游戏：死磕《球球版—贪吃蛇蛇》，你中招了嘛？
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