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This article is from Tencent cloud by Python sophomore
As a classic little game, snake came out as early as 1976. I first came into contact with it in my parents’ Nokia mobile phone.
Although the history of the snake is relatively long, but it has a very tenacious vitality, keep enduring, one of the important reasons is that the game manufacturers continue to update and iterate. Now, this game has become very rich in game scenes and rules.
Next, let’s take a look at how to simply implement this small game through python.
- There should be the main interface of the game, snake and food;
- It can control the snake to move and get food;
- After eating the food, the snake increases its length and score, and the food disappears and randomly generates new food;
- The game ends when the snake touches the surrounding boundary or its own body.
- Operating system: Windows
- Python version: 3.6
- Modules involved: sys, random, pyGame
First, install the third-party library pyGame and use pip to install pyGame.
The main interface of the game
SCREEN_X = 500
SCREEN_Y = 500
screen_size = (SCREEN_X, SCREEN_Y)
screen = pygame.display.set_mode(screen_size)
pygame.display.set_ Capture ('snake eating ')
A snake eater
initialization
def __init__(self):
self.dirction = pygame.K_RIGHT
self.body = []
move
def addNode(self):
left, top = (0, 0)
if self.body:
left, top = (self.body[0].left, self.body[0].top)
node = pygame.Rect(left, top, 20, 20)
if self.dirction == pygame.K_LEFT:
node.left -= 20
elif self.dirction == pygame.K_RIGHT:
node.left += 20
elif self.dirction == pygame.K_UP:
node.top -= 20
elif self.dirction == pygame.K_DOWN:
node.top += 20
self.body.insert(0, node)
def delNode(self):
self.body.pop()
Change direction
def changeDirection(self, curkey):
LR = [pygame.K_LEFT, pygame.K_RIGHT]
UD = [pygame.K_UP, pygame.K_DOWN]
if curkey in LR + UD:
if (curkey in LR) and (self.dirction in LR):
return
if (curkey in UD) and (self.dirction in UD):
return
self.dirction = curkey
Death judgment
def isDead(self):
#Hit the wall
if self.body[0].x not in range(SCREEN_X):
return True
if self.body[0].y not in range(SCREEN_Y):
return True
#Hit yourself
if self.body[0] in self.body[1:]:
return True
return False
FoodPut food in
def set(self):
if self.rect.x == -20:
allpos = []
for pos in range(20, SCREEN_X - 20, 20):
allpos.append(pos)
self.rect.left = random.choice(allpos)
self.rect.top = random.choice(allpos)
print(self.rect)
Eat the food
def remove(self):
self.rect.x = -20
≠ text display
Display method
def show_text(screen, pos, text, color, font_bold=False, font_size=30, font_italic=False):
#Set text size
cur_ font = pygame.font.SysFont (song style, font)_ size)
#Bold
cur_font.set_bold(font_bold)
#Italics
cur_font.set_italic(font_italic)
#Set content
text_fmt = cur_font.render(text, 1, color)
#Draw text
screen.blit(text_fmt, pos)
Show score
show_text(screen, (50, 400), 'scores: ' + str(scores), (103, 213, 213))
Display death alert
show_text(screen, (150, 50), 'GAME OVER', (227, 29, 18), False, 50)
show_text(screen, (140, 100), "Press space to try again", (0, 0, 22), False, 30)
Get food
When the greedy snake eats the food and increases the length and score of the snake, the food disappears and is put in again.
if food.rect == snake.body[0]:
scores += 1
food.remove()
snake.addNode()
#Put food in
food.set()
The final effect
Package with pyinstall,