Python版贪吃蛇游戏（开源）

我将整个贪吃蛇游戏的代码分割成了几个部分进行讲解，内容较长，建议细心观看！（注：全程没几个文字，不喜勿喷）

结尾会有完整版源码！

1.导入模块

游戏游戏，肯定得有游戏模块pygame，随后便是random模块了,代码如下：

import pygame
import random

导入好模块后下面就是基础设置了

一、基础设置部分

1.屏幕高度与宽度的设置

这个就不用多说了吧，懂得都懂

SCREEN_HEIGHT = 480
SCREEN_WIDTH = 600

2.小方格的大小与颜色的定义

GRID_SIZE = 20
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
GREEN = (0, 255, 0)

初始化pygame

pyame.init()

创建屏幕

screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption("贪吃蛇游戏")

创建游戏时钟

clock = pygame.time.Clock()

二、贪吃蛇类

1.贪吃蛇主体

class Snake:
    def __init__(self):
        self.positions = [(100, 100)]
        self.direction = (1, 0)

    def move(self):
        cur = self.positions[0]
        x, y = cur
        dx, dy = self.direction
        new = ((x + dx * GRID_SIZE) % SCREEN_WIDTH, (y + dy * GRID_SIZE) % SCREEN_HEIGHT)
        if new in self.positions[1:]:
            return False
        else:
            self.positions.insert(0, new)
            if new[0] == food_pos[0] and new[1] == food_pos[1]:
                return True
            else:
                self.positions.pop()
                return True

    def change_direction(self, direction):
        if (direction[0] * -1, direction[1] * -1)!= self.direction:
            self.direction = direction

2.食物类

class Food:
    def __init__(self):
        self.position = (random.randint(0, SCREEN_WIDTH // GRID_SIZE - 1) * GRID_SIZE,
                         random.randint(0, SCREEN_HEIGHT // GRID_SIZE - 1) * GRID_SIZE)

    def generate_new(self):
        while True:
            new_pos = (random.randint(0, SCREEN_WIDTH // GRID_SIZE - 1) * GRID_SIZE,
                       random.randint(0, SCREEN_HEIGHT // GRID_SIZE - 1) * GRID_SIZE)
            if new_pos not in snake.positions:
                self.position = new_pos
                break

三、游戏主循环

1.主循环部分

def game_loop():
    global snake, food
    snake = Snake()
    food = Food()

    running = True
    while running:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False

            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_UP and snake.direction!= (0, 1):
                    snake.change_direction((0, -1))
                elif event.key == pygame.K_DOWN and snake.direction!= (0, -1):
                    snake.change_direction((0, 1))
                elif event.key == pygame.K_LEFT and snake.direction!= (1, 0):
                    snake.change_direction((-1, 0))
                elif event.key == pygame.K_RIGHT and snake.direction!= (-1, 0):
                    snake.change_direction((1, 0))

        if not snake.move():
            running = False

        if snake.positions[0] == food.position:
            food.generate_new()

        screen.fill(BLACK)

        for pos in snake.positions:
            pygame.draw.rect(screen, GREEN, [pos[0], pos[1], GRID_SIZE, GRID_SIZE])

        pygame.draw.rect(screen, WHITE, [food.position[0], food.position[1], GRID_SIZE, GRID_SIZE])

        pygame.display.flip()

        clock.tick(10)

    pygame.quit()

if __name__ == "__main__":
    game_loop()

四、完整版代码

如下：

import pygame
import random
# 基础设置
# 屏幕高度
SCREEN_HEIGHT = 480
# 屏幕宽度
SCREEN_WIDTH = 600
# 小方格大小
GRID_SIZE = 20
# 颜色定义
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
GREEN = (0, 255, 0)
# 初始化 pygame
pygame.init()
# 创建屏幕
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption("贪吃蛇游戏")
# 游戏时钟
clock = pygame.time.Clock()
# 贪吃蛇类
class Snake:
    def __init__(self):
        self.positions = [(100, 100)]
        self.direction = (1, 0)
    def move(self):
        cur = self.positions[0]
        x, y = cur
        dx, dy = self.direction
        new = ((x + dx * GRID_SIZE) % SCREEN_WIDTH, (y + dy * GRID_SIZE) % SCREEN_HEIGHT)
        if new in self.positions[1:]:
            return False
        else:
            self.positions.insert(0, new)
            if new[0] == food_pos[0] and new[1] == food_pos[1]:
                return True
            else:
                self.positions.pop()
                return True
    def change_direction(self, direction):
        if (direction[0] * -1, direction[1] * -1)!= self.direction:
            self.direction = direction
# 食物类
class Food:
    def __init__(self):
        self.position = (random.randint(0, SCREEN_WIDTH // GRID_SIZE - 1) * GRID_SIZE,
                         random.randint(0, SCREEN_HEIGHT // GRID_SIZE - 1) * GRID_SIZE)
    def generate_new(self):
        while True:
            new_pos = (random.randint(0, SCREEN_WIDTH // GRID_SIZE - 1) * GRID_SIZE,
                       random.randint(0, SCREEN_HEIGHT // GRID_SIZE - 1) * GRID_SIZE)
            if new_pos not in snake.positions:
                self.position = new_pos
                break
# 游戏主循环
def game_loop():
    global snake, food
    snake = Snake()
    food = Food()
    running = True
    while running:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_UP and snake.direction!= (0, 1):
                    snake.change_direction((0, -1))
                elif event.key == pygame.K_DOWN and snake.direction!= (0, -1):
                    snake.change_direction((0, 1))
                elif event.key == pygame.K_LEFT and snake.direction!= (1, 0):
                    snake.change_direction((-1, 0))
                elif event.key == pygame.K_RIGHT and snake.direction!= (-1, 0):
                    snake.change_direction((1, 0))
        if not snake.move():
            running = False
        if snake.positions[0] == food.position:
            food.generate_new()
        screen.fill(BLACK)
        for pos in snake.positions:
            pygame.draw.rect(screen, GREEN, [pos[0], pos[1], GRID_SIZE, GRID_SIZE])
        pygame.draw.rect(screen, WHITE, [food.position[0], food.position[1], GRID_SIZE, GRID_SIZE])
        pygame.display.flip()
        clock.tick(10)
    pygame.quit()
if __name__ == "__main__":
    game_loop()

Python版贪吃蛇就到这里结束了，感谢您的观看，我们下期再见！ 

作者：天宸TianChen