row=0

col=0

def？ __init__(self, row,? col):

self.row=row

self.col=col

def？ Copy (self):

Return? Point(row=self.row，？ col=self.col)

# Initial frame

Import? pygame

Import? at will

# Initialize

pygame.init()

W=800

H=600

ROW=30

COL=40

Size = (width, height)

window = py game . display . set _ mode(size)

py game . display . set _ caption(' snake ')

bg_color=(255，255，255)

snake _ color =(200200200)

head=Point(row=int(ROW/2)，？ col=int(COL/2))

head_color=(0， 128， 128)

Snake = [

Point(row=head.row，？ col=head.col+ 1)，

Point(row=head.row，？ col=head.col+2)，

Point(row=head.row，？ col=head.col+3)

]

# Produce food

def？ gen_food():

What time? 1:

pos=Point(row=random.randint(0，ROW- 1)，？ col=random.randint(0，COL- 1))

#

is_coll=False

# Did you meet a snake?

What if? head.row==pos.row？ And then what? head.col==pos.col:

is_coll=True

# Snake body

For what? Snakes? Are you online? Snake:

What if? snake.row==pos.row？ And then what? snake.col==pos.col:

is_coll=True

break

What if? Isn't it? is_coll:

break

Return? card reader

# Define coordinates

food=gen_food()

food_color=(255，255，0)

Direct =' left'? # Left, right, up, down

#

def？ Rect (point,? Color):

Cell width = width/column

cell_height=H/ROW

Left = point.col * cell width

top=point.row*cell_height

pygame.draw.rect(

Window? Color,

(left,? Top,? Cell _ width,? Cell _ Height)

)

get through

# Game loop

Exit = true

clock=pygame.time.Clock()

What time? Exit:

# Handling events

For what? Events? Are you online? pygame.event.get():

What if? event.type==pygame。 Exit:

Exit = false

Elif? event.type==pygame。 Keys:

What if? event.key==273？ Or? event.key== 1 19:

What if? Direct = =' left'? Or? direct=='right ':

Direct =' Up'

Elif? event.key==274？ Or? event.key== 1 15:

What if? Direct? ==? Left? Or? Direct? ==? "right":

direct='down '

Elif? event.key==276？ Or? event.key==97:

What if? Direct? ==? Get up Or? Direct? ==? Down':

direct='left '

Elif? event.key==275？ Or? event.key== 100:

What if? Direct? ==? Get up Or? Direct? ==? Down':

Direct =' Right'

# Eat it

Eat =(head.row==food.row? And then what? head.col==food.col)

# Reproduce food

What if? Eat:

Food? =? gen_food()

# Dispose of the body

# 1. Insert the original head into the snake's head.

snakes.insert(0，head.copy())

#2. Delete the last snake.

What if? Isn't it? Eat:

snakes.pop()

# Move

What if? direct=='left ':

head.col-= 1

Elif? direct=='right ':

head.col+= 1

Elif? direct=='up ':

head.row-= 1

Elif? direct=='down ':

head.row+= 1

# Detection

Death = false

# 1. Suddenly I can't run.

What if? head.col & lt0? Or? head.row & lt0? Or? head.col & gt=COL？ Or? Head.row & gt= line:

Death = truth

#2. Hit yourself

For what? Snakes? Are you online? Snake:

What if? head.col==snake.col？ And then what? head.row==snake.row:

Death = truth

break

What if? Death:

Print ("dead")

Exit = false

# Render-Draw it

# Background

pygame.draw.rect(window，？ bg_color，？ (0，0，W，H))

# Snakehead

For what? Snakes? Are you online? Snake:

Rect (snake,? Snake _ color)

Rect (head, head _ color)

Rect (food,? Food _ color)

#

pygame.display.flip()

# Set the frame rate (speed)

clock.tick(8)

# Finishing Work This is a simple version of the snake code. Although the structure is simple, it has complete functions and good playability.