python大鱼吃小鱼程序代码

python大鱼吃小鱼程序代码大鱼吃小鱼是一种经典的游戏，玩家需要控制一条大鱼吃掉尽可能多的小鱼，但要注意避免被更大的鱼吃掉。下面是一个使用Python语言实现的大鱼吃小鱼的简单程序代码。以下是参考内容：

```python

importpygame

importrandom

#初始化游戏

pygame.init()

#定义颜色

WHITE=(255,255,255)

BLACK=(0,0,0)

#设置窗口大小和标题

window_width=800

window_height=600

window=pygame.display.set_mode((window_width,window_height))

pygame.display.set_caption("大鱼吃小鱼")

#加载图像

player_image=pygame.image.load("player.png")

fish_image=pygame.image.load("fish.png")

shark_image=pygame.image.load("shark.png")

#设置图像大小

player_width=50

player_height=50

player_image=pygame.transform.scale(player_image,(player_width,player_height))

fish_width=30

fish_height=30

fish_image=pygame.transform.scale(fish_image,(fish_width,fish_height))

shark_width=80

shark_height=80

shark_image=pygame.transform.scale(shark_image,(shark_width,shark_height))

#设置角色初始位置

player_x=window_width//2

player_y=window_height//2

#设置角色移动速度

player_speed=5

#定义角色类

classPlayer:

def__init__(self,x,y):

self.x=x

self.y=y

defmove(self,dx,dy):

self.x+=dx

self.y+=dy

defdraw(self):

window.blit(player_image,(self.x,self.y))

#定义小鱼类

classFish:

def__init__(self):

self.x=random.randint(0,window_width-fish_width)

self.y=random.randint(0,window_height-fish_height)

defdraw(self):

window.blit(fish_image,(self.x,self.y))

#定义大鱼类

classShark:

def__init__(self):

self.x=random.randint(0,window_width-shark_width)

self.y=random.randint(0,window_height-shark_height)

defdraw(self):

window.blit(shark_image,(self.x,self.y))

#实例化角色、小鱼和大鱼对象

player=Player(player_x,player_y)

fish_list=[]

shark_list=[]

for_inrange(10):

fish=Fish()

fish_list.append(fish)

for_inrange(3):

shark=Shark()

shark_list.append(shark)

#游戏循环

running=True

whilerunning:

#设置背景颜色

window.fill(WHITE)

#事件处理

foreventinpygame.event.get():

ifevent.type==pygame.QUIT:

running=False

#检测按键

keys=pygame.key.get_pressed()

ifkeys[pygame.K_LEFT]andplayer.x>0:

player.move(-player_speed,0)

ifkeys[pygame.K_RIGHT]andplayer.x<window_width-player_width:

player.move(player_speed,0)

ifkeys[pygame.K_UP]andplayer.y>0:

player.move(0,-player_speed)

ifkeys[pygame.K_DOWN]andplayer.y<window_height-player_height:

player.move(0,player_speed)

#绘制角色、小鱼和大鱼

player.draw()

forfishinfish_list:

fish.draw()

forsharkinshark_list:

shark.draw()

#碰撞检测

forfishinfish_list:

ifplayer.x<fish.x+fish_widthandplayer.x+player_width>fish.xandplayer.y<fish.y+fish_heightandplayer.y+player_height>fish.y:

fish_list.remove(fish)

player_speed+=0.5

forsharkinshark_list:

ifplayer.x<shark.x+shark_widthandplayer.x+player_width>shark.xandplayer.y<shark.y+shark_heightandplayer.y+player_height>shark.y:

running=False

#刷新屏幕

pygame.display.update()

#退出游戏

pygame.quit()

```

以上是一个使用Python及Pygame库实现的大鱼