'''
my_snake.py
@author HelloWorld!
@time:2019.10.27'''import random
import pygame
import sys
from pygame.locals import *windows_width=800 #游戏窗口的大小，原点在左上角
windows_height=600cell_size=20  #snake 的大小，需被窗口长宽整除#一些颜色定义
white = (255, 255, 255)
black = (0, 0, 0)
gray = (230, 230, 230)
dark_gray = (40, 40, 40)
DARKGreen = (0, 155, 0)
Green = (0, 255, 0)
Red = (255, 0, 0)
blue = (0, 0, 255)
dark_blue =(0,0, 139)BG_COLOR = (184,224,217)#贪吃蛇的地图尺寸
map_width = int(windows_width / cell_size)
map_height = int(windows_height / cell_size)#蛇的移动速度
snake_speed=5#方向定义
UP = 1
DOWN = 2
LEFT = 3
RIGHT = 4#主函数
def main_game():pygame.init() #初始化gygamescreen=pygame.display.set_mode((windows_width,windows_height))pygame.display.set_caption("贪吃蛇游戏")snake_speed_clock = pygame.time.Clock() # 创建Pygame时钟对象screen.fill(white)while True:run_game(screen,snake_speed_clock) #游戏主体gameover(screen)        #游戏结束def run_game(screen,snake_speed_clock):#初始化蛇的位置，方向，食物的位置start_x=random.randint(3,map_width-8)start_y=random.randint(3,map_width-8)snake_coords=[{'x':start_x,'y':start_y},{'x':start_x-1,'y':start_y},{'x':start_x-2,'y':start_y}]#初始化snake，也可以用列表的的列表direction = RIGHTfood=get_random_location()#循环while True:for event in pygame.event.get(): #键盘事件监听if event.type == pygame.QUIT:pygame.quit()sys.exit()elif event.type == pygame.KEYDOWN: #按键事件if (event.key==K_LEFT or event.key==K_a) and direction!=RIGHT:direction=LEFTelif (event.key==K_RIGHT or event.key==K_d) and direction!=LEFT:direction=RIGHTelif (event.key == K_UP or event.key == K_w) and direction != DOWN:direction = UPelif (event.key == K_DOWN or event.key == K_s) and direction != UP:direction = DOWNelif event.key == K_ESCAPE:pygame.quit()sys.exit()snake_move(direction,snake_coords) #根据方向，移动蛇alive=snake_is_alive(snake_coords)  #判断蛇的死活if not alive:            #如果挂了，则终止循环，跳出run_game函数，执行gameoverbreaksnake_eat_foods(snake_coords,food)  #没挂，则看看迟到食物了吗screen.fill(BG_COLOR)        #游戏背景刷新#下面draw，是把蛇食物等画出来draw_snake(screen, snake_coords)draw_food(screen,food)draw_score(screen, len(snake_coords) - 3)# draw_grid(screen)pygame.display.flip()#控制执行次数snake_speed_clock.tick(snake_speed) # 控制fps#根据移动方向，更新蛇头坐标
def snake_move(directtion,snake_coords):if directtion==UP:newHead={'x':snake_coords[0]['x'],'y':snake_coords[0]['y']-1}elif directtion==DOWN:newHead = {'x': snake_coords[0]['x'], 'y': snake_coords[0]['y'] + 1}elif directtion==LEFT:newHead = {'x': snake_coords[0]['x']-1, 'y': snake_coords[0]['y'] }elif directtion == RIGHT:newHead = {'x': snake_coords[0]['x']+1, 'y': snake_coords[0]['y']}snake_coords.insert(0,newHead)def snake_is_alive(snake_coords): #碰壁或者碰到自身就是死了alive=Trueif snake_coords[0]['x'] == -1 or snake_coords[0]['x'] == map_width or snake_coords[0]['y'] == -1 or snake_coords[0]['y'] == map_height:alive=Falsefor snake_body in snake_coords[1:]:if snake_coords[0]['x']==snake_body['x'] and snake_coords[0]['y']==snake_body['y']:alive=Falsereturn alive#坐标重合，表示吃到食物了，否则就没有，则移动，把
def snake_eat_foods(snake_coords,food):if snake_coords[0]['x']==food['x'] and snake_coords[0]['y']==food['y']:food['x']=random.randint(0, map_width-1)food['y']=random.randint(0, map_height-1)else:del snake_coords[-1]def get_random_location(): #食物的坐标随机生成return {'x':random.randint(0,map_width-1),'y':random.randint(0,map_height-1)}def draw_snake(screen, snake_coords):for coord in snake_coords:x=coord['x']*cell_sizey=coord['y']*cell_sizesegmentRect=pygame.Rect(x,y,cell_size,cell_size)pygame.draw.rect(screen,dark_blue,segmentRect)def draw_food(screen,food):x=food['x']*cell_sizey=food['y']*cell_sizefoodRect=pygame.Rect(x,y,cell_size,cell_size)pygame.draw.rect(screen,Red,foodRect)def draw_grid(screen):for x in range(0,windows_width,cell_size):pygame.draw.line(screen,gray,(x,0),(x,windows_height))for y in range(0,windows_height,cell_size):pygame.draw.line(screen,gray,(0,y),(windows_width,y))
def draw_score(screen, score):font = pygame.font.SysFont(None, 40)score_str = "{:,}".format(score)score_image=font.render('Score: '+score_str,True,Green,gray)score_rect=score_image.get_rect()score_rect.topleft=(windows_width-200,10)screen.blit(score_image, score_rect)def gameover(screen):font=pygame.font.SysFont(None, 40)tips=font.render('Press Q or ESC to quit; Press anykey to continue',True, (65, 105, 225))screen.blit(tips,(80, 300))pygame.display.update()while True:for event in pygame.event.get():if event.type==QUIT:pygame.quit()sys.exit()elif event.type == KEYDOWN:if event.key == K_ESCAPE or event.key == K_q: # 终止程序pygame.quit()sys.exit() # 终止程序else:return # 结束此函数, 重新开始游戏if __name__=='__main__':main_game()

'''
@colorful_snake.py
@author HelloWorld!
@time:2019.10.27
@ class is used to design a snake game
'''
import random
import pygame
from pygame.locals import *
import sys
class Settings():def __init__(self):self.windows_width=800 #游戏窗口的大小，原点在左上角self.windows_height=600self.BG_COLOR = (184,224,217)self.cell_size=20  #snake 的大小，需被窗口长宽整除self.map_width = int(self.windows_width / self.cell_size)self.map_height = int(self.windows_height / self.cell_size)self.Green = (0, 255, 0)self.Red = (255, 0, 0)self.Blue = (0, 0, 255)self.orange=(255,128,0)self.purple=(128, 0, 255)self.black = (0, 0, 0)self.white = (255, 255, 255)self.dark_blue = (0, 0, 139)self.gray = (230, 230, 230)#方向self.UP = 1self.DOWN = 2self.LEFT = 3self.RIGHT = 4
class Snake():def __init__(self,settings):self.cell_size=settings.cell_sizeself.snake_coords=[]self.direction=settings.RIGHTself.snake_speed=5self.initialize_snake(settings)def initialize_snake(self,settings):# [{'x':start_x,'y':start_y},{'x':start_x-1,'y':start_y},{'x':start_x-2,'y':start_y}]#初始化snake，也可以用列表的的列表start_x = random.randint(3, settings.map_width - 8)start_y = random.randint(3, settings.map_width - 8)snake_coords = [{'x': start_x, 'y': start_y,'color':settings.dark_blue}, {'x': start_x - 1, 'y': start_y,'color':settings.dark_blue},{'x': start_x - 2, 'y': start_y,'color':settings.dark_blue}] # 初始化snake，也可以用列表的的列表self.snake_coords=snake_coordsdef snake_move(self,settings):if self.direction == settings.UP:newHead = {'x': self.snake_coords[0]['x'], 'y': self.snake_coords[0]['y'] - 1,'color':settings.dark_blue}elif self.direction == settings.DOWN:newHead = {'x': self.snake_coords[0]['x'], 'y': self.snake_coords[0]['y'] + 1,'color':settings.dark_blue}elif self.direction == settings.LEFT:newHead = {'x': self.snake_coords[0]['x'] - 1, 'y': self.snake_coords[0]['y'],'color':settings.dark_blue}elif self.direction == settings.RIGHT:newHead = {'x': self.snake_coords[0]['x'] + 1, 'y': self.snake_coords[0]['y'],'color':settings.dark_blue}self.snake_coords.insert(0, newHead)def snake_is_alive(self,settings):# 碰壁或者碰到自身就是死了alive = Trueif self.snake_coords[0]['x'] == -1 or self.snake_coords[0]['x'] == settings.map_width or self.snake_coords[0]['y'] == -1 or self.snake_coords[0]['y'] ==settings.map_height:alive = Falsefor snake_body in self.snake_coords[1:]:if self.snake_coords[0]['x'] == snake_body['x'] and self.snake_coords[0]['y'] == snake_body['y']:alive = Falsereturn alive
class Food():def __init__(self,settings):self.cell_size=settings.cell_sizeself.color=self.initialize_food(settings)self.x= random.randint(0, settings.map_width - 1)self.y= random.randint(0, settings.map_height - 1)def initialize_food(self,settings):colors=[settings.Green,settings.Red,settings.Blue,settings.orange,settings.purple,settings.black]color=random.choice(colors)return color
class GameFunction():def __init__(self,screen):self.screen=screendef check_event(self,snake,settings):for event in pygame.event.get(): #键盘事件监听if event.type == pygame.QUIT:pygame.quit()sys.exit()elif event.type == pygame.KEYDOWN: #按键事件if (event.key==K_LEFT or event.key==K_a) and snake.direction!=settings.RIGHT:snake.direction=settings.LEFTelif (event.key==K_RIGHT or event.key==K_d) and snake.direction!=settings.LEFT:snake.direction=settings.RIGHTelif (event.key == K_UP or event.key == K_w) and snake.direction != settings.DOWN:snake.direction = settings.UPelif (event.key == K_DOWN or event.key == K_s) and snake.direction != settings.UP:snake.direction = settings.DOWNelif event.key == K_ESCAPE:pygame.quit()sys.exit()def snake_eat_foods(self,snake,food,settings):if snake.snake_coords[0]['x'] == food.x and snake.snake_coords[0]['y'] == food.y:snake.snake_coords[0]['color'] = food.colorfood.x = random.randint(0, settings.map_width - 1)food.y = random.randint(0, settings.map_height - 1)food.color=food.initialize_food(settings)else:for i in range(len(snake.snake_coords)-1):snake.snake_coords[i]['color']=snake.snake_coords[i+1]['color']del snake.snake_coords[-1]def update(self,snake,food,settings,screen,snake_speed_clock):screen.fill(settings.BG_COLOR) # 游戏背景刷新# 下面draw，是把蛇食物等画出来self.draw_snake(screen, snake)self.draw_food(screen, food)self.draw_score(screen,snake,settings)self.draw_grid(screen,settings)pygame.display.flip()# 控制执行次数snake_speed_clock.tick(snake.snake_speed) # 控制fpsdef draw_snake(self,screen,snake):for coord in snake.snake_coords:x = coord['x'] * snake.cell_sizey = coord['y'] * snake.cell_sizesegmentRect = pygame.Rect(x, y, snake.cell_size, snake.cell_size)pygame.draw.rect(screen, coord['color'], segmentRect)def draw_food(self,screen, food):x = food.x* food.cell_sizey = food.y * food.cell_sizefoodRect = pygame.Rect(x, y, food.cell_size, food.cell_size)pygame.draw.rect(screen, food.color, foodRect)def draw_grid(self,screen,settings):for x in range(0, settings.windows_width, settings.cell_size):pygame.draw.line(screen, settings.gray, (x, 0), (x, settings.windows_height))for y in range(0, settings.windows_height,settings.cell_size):pygame.draw.line(screen, settings.gray, (0, y), (settings.windows_width, y))def draw_score(self,screen, snake,settings):score=len(snake.snake_coords)-3font = pygame.font.SysFont(None, 40)score_str = "{:,}".format(score)score_image = font.render('Score: ' + score_str, True, settings.Green, settings.gray)score_rect = score_image.get_rect()score_rect.topleft = (settings.windows_width - 200, 10)screen.blit(score_image, score_rect)def gameover(self,screen):font = pygame.font.SysFont(None, 40)tips = font.render('Press Q or ESC to quit; Press anykey to continue', True, (65, 105, 225))screen.blit(tips, (80, 300))pygame.display.update()while True:for event in pygame.event.get():if event.type == QUIT:pygame.quit()sys.exit()elif event.type == KEYDOWN:if event.key == K_ESCAPE or event.key == K_q: # 终止程序pygame.quit()sys.exit() # 终止程序else:return # 结束此函数, 重新开始游戏
#主函数
def main_game():pygame.init() #初始化gygamesettings=Settings()screen=pygame.display.set_mode((settings.windows_width,settings.windows_height))pygame.display.set_caption("贪吃蛇游戏")snake_speed_clock = pygame.time.Clock() # 创建Pygame时钟对象screen.fill(settings.white)gf=GameFunction(screen)while True:snake = Snake(settings)food = Food(settings)while True:gf.check_event(snake,settings)snake.snake_move(settings)alive = snake.snake_is_alive(settings) # 判断蛇的死活if not alive: # 如果挂了，则终止循环，跳出run_game函数，执行gameoverbreakgf.snake_eat_foods(snake,food,settings)gf.update(snake,food,settings,screen,snake_speed_clock)gf.gameover(screen)        #游戏结束
if __name__=='__main__':main_game()