python贪食蛇源码

[python]代码库

import pygame
import sys
import random
import time

# 颜色
redColor = pygame.Color(255, 0, 0)  # gameover
whiteColor = pygame.Color(255, 255, 255)  # background
blackColor = pygame.Color(0, 0, 0)  # score


# Gameover函数
def gameover(play_surface, score):
    gameoverFont = pygame.font.SysFont('arial', 54)
    gameoverSurf = gameoverFont.render('Game Over!', True, redColor)
    gameoverRect = gameoverSurf.get_rect()
    gameoverRect.midtop = (320, 10)
    play_surface.blit(gameoverSurf, gameoverRect)
    showScore(play_surface, score)
    pygame.display.flip()
    time.sleep(4)
    pygame.quit()  # 退出pygame
    sys.exit()  # 退出系统


# 得分函数
def showScore(play_surface, score):
    scoreFont = pygame.font.SysFont('arial', 34)
    scoreSurf = scoreFont.render('score : %s' % str(score), True, blackColor)
    scoreRect = scoreSurf.get_rect()
    scoreRect.midtop = (80, 10)
    play_surface.blit(scoreSurf, scoreRect)


# 主函数
def main():
    # 初始化pygame
    pygame.init()
    fps_clock = pygame.time.Clock()

    # 设置窗口大小
    play_surface = pygame.display.set_mode((640, 480))

    pygame.display.set_caption('贪吃蛇')

    # 初始化变量
    snake_position = [100, 100]
    snake_body = [[100, 100], [80, 100], [60, 100]]

    target_position = [300, 300]
    target_flag = 1
    score = 0

    # 确定方向
    direction = 'right'

    change_direction = direction

    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                sys.exit()
            elif event.type == pygame.KEYDOWN:
                if event.key == pygame.K_RIGHT:
                    change_direction = 'right'
                if event.key == pygame.K_LEFT:
                    change_direction = 'left'
                if event.key == pygame.K_UP:
                    change_direction = 'up'
                if event.key == pygame.K_DOWN:
                    change_direction = 'down'

        # 判断是否输入的方向与当前方向冲突
        if change_direction == 'right' and not direction == 'left':
            direction = change_direction
        if change_direction == 'left' and not direction == 'right':
            direction = change_direction
        if change_direction == 'up' and not direction == 'down':
            direction = change_direction
        if change_direction == 'down' and not direction == 'up':
            direction = change_direction

        if direction == 'right':
            snake_position[0] += 20
        if direction == 'left':
            snake_position[0] -= 20
        if direction == 'up':
            snake_position[1] -= 20
        if direction == 'down':
            snake_position[1] += 20

        # 增加蛇的长度
        snake_body.insert(0, list(snake_position))

        # 判断是否吃掉目标
        if snake_position[0] == target_position[0] and snake_position[1] == target_position[1]:
            target_flag = 0
            score += 1
        else:
            snake_body.pop()

        # 重新绘制目标
        if target_flag == 0:
            x = random.randrange(1, 32)
            y = random.randrange(1, 24)
            target_position = [int(x * 20), int(y * 20)]
            target_flag = 1

        # 绘制pygame窗口
        play_surface.fill(whiteColor)
        for position in snake_body:
            pygame.draw.rect(play_surface, blackColor, pygame.Rect(position[0], position[1], 20, 20))
            pygame.draw.rect(play_surface, redColor, pygame.Rect(target_position[0], target_position[1], 20, 20))

        # 判断是否死亡
        if snake_position[0] > 620 or snake_position[0] < 0:
            gameover(play_surface, score)
        if snake_position[1] > 460 or snake_position[1] < 0:
            gameover(play_surface, score)
        for snake_parts in snake_body[1:]:
            if snake_position[0] == snake_parts[0] and snake_position[1] == snake_parts[1]:
                gameover(play_surface, score)

        showScore(play_surface, score)
        pygame.display.flip()
        fps_clock.tick(5)


if __name__ == "__main__":
    main()

[代码运行效果截图]