演示图动图
如果没有pygame包需要单独下载;
代码语言：javascript复制pip install pygame键盘上下左右是操作键；
死后按space重新
控制速度可以更改;
代码语言：javascript复制clock.tick(10) # 数字越大速度越快源代码送上！
代码语言：javascript复制import pygameimport sysimport random
# 全局定义SCREEN_X = 600SCREEN_Y = 600
# 蛇类# 点以25为单位class Snake(object): # 初始化各种需要的属性 [开始时默认向右/身体块x5] def __init__(self): self.dirction = pygame.K_RIGHT self.body = [] for x in range(5): self.addnode() # 无论何时 都在前端增加蛇块 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,25,25) if self.dirction == pygame.K_LEFT: node.left -= 25 elif self.dirction == pygame.K_RIGHT: node.left = 25 elif self.dirction == pygame.K_UP: node.top -= 25 elif self.dirction == pygame.K_DOWN: node.top = 25 self.body.insert(0,node) # 删除最后一个块 def delnode(self): self.body.pop() # 死亡判断 def isdead(self): # 撞墙 if self.body[0].x not in range(SCREEN_X): return True if self.body[0].y not in range(SCREEN_Y): return True # 撞自己 if self.body[0] in self.body[1:]: return True return False # 移动！ def move(self): self.addnode() self.delnode() # 改变方向 但是左右、上下不能被逆向改变 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 # 食物类# 方法：放置/移除# 点以25为单位class Food: def __init__(self): self.rect = pygame.Rect(-25,0,25,25) def remove(self): self.rect.x=-25 def set(self): if self.rect.x == -25: allpos = [] # 不靠墙太近 25 ~ SCREEN_X-25 之间 for pos in range(25,SCREEN_X-25,25): allpos.append(pos) self.rect.left = random.choice(allpos) self.rect.top = random.choice(allpos) print(self.rect)
def show_text(screen, pos, text, color, font_bold = False, font_size = 60, font_italic = False): #获取系统字体，并设置文字大小 cur_font = pygame.font.SysFont("宋体", font_size) #设置是否加粗属性 cur_font.set_bold(font_bold) #设置是否斜体属性 cur_font.set_italic(font_italic) #设置文字内容 text_fmt = cur_font.render(text, 1, color) #绘制文字 screen.blit(text_fmt, pos)
def main(): pygame.init() screen_size = (SCREEN_X,SCREEN_Y) screen = pygame.display.set_mode(screen_size) pygame.display.set_caption('Snake') clock = pygame.time.Clock() scores = 0 isdead = False # 蛇/食物 snake = Snake() food = Food() while True: for event in pygame.event.get(): if event.type == pygame.QUIT: sys.exit() if event.type == pygame.KEYDOWN: snake.changedirection(event.key) # 死后按space重新 if event.key == pygame.K_SPACE and isdead: return main() screen.fill((255,255,255)) # 画蛇身 / 每一步 1分 if not isdead: scores =1 snake.move() for rect in snake.body: pygame.draw.rect(screen,(20,220,39),rect,0) # 显示死亡文字 isdead = snake.isdead() if isdead: show_text(screen,(100,200),'YOU DEAD!',(227,29,18),False,100) show_text(screen,(150,260),'press space to try again...',(0,0,22),False,30) # 食物处理 / 吃到 50分 # 当食物rect与蛇头重合,吃掉 -> Snake增加一个Node if food.rect == snake.body[0]: scores =50 food.remove() snake.addnode() # 食物投递 food.set() pygame.draw.rect(screen,(136,0,21),food.rect,0) # 显示分数文字 show_text(screen,(50,500),'Scores: ' str(scores),(223,223,223)) pygame.display.update() clock.tick(10) if __name__ == '__main__': main()
