diff --git a/.gitignore b/.gitignore index ba0430d..6955cf9 100644 --- a/.gitignore +++ b/.gitignore @@ -1 +1,3 @@ -__pycache__/ \ No newline at end of file +__pycache__/ +idea.km +idea.png \ No newline at end of file diff --git a/game_functions.py b/game_functions.py index cbe5b88..6ac91f0 100644 --- a/game_functions.py +++ b/game_functions.py @@ -14,10 +14,10 @@ def check_events(settings): sys.exit() # 按1键选择手动模式 elif event.key == pygame.K_1: - settings.game_mode = -1 + settings.game_mode = 1 # 按2键选择自动模式 elif event.key == pygame.K_2: - settings.game_mode = -1 + settings.game_mode = 2 def show_start(settings, screen): @@ -44,7 +44,7 @@ def show_start(settings, screen): def show_end(settings, screen): - """结算界面""" + """失败结算界面""" title_font = pygame.font.Font(settings.font_name, 80) game_image = title_font.render('Game', True, (233, 150, 122)) over_image = title_font.render('Over', True, (233, 150, 122)) @@ -58,3 +58,84 @@ def show_end(settings, screen): pygame.display.flip() pygame.time.wait(1500) settings.game_mode = 0 + +def draw_grid(settings, screen): + #绘制横向线 + for x in range(0, settings.width, settings.cell_size): + pygame.draw.line(screen,(40,40,40),(x,0),(x,settings.height)) + #绘制竖向线 + for y in range(0, settings.height, settings.cell_size): + pygame.draw.line(screen,(40,40,40),(0, y),(settings.width,y)) + +def update_screen(settings, screen): + screen.fill(settings.bg_color) + draw_grid(settings, screen) + +#绘制蛇 +def draw_snake(ai_settings, screen, snake): + #头部用白色 + x = snake.coords[0]['x'] * ai_settings.cell_size + y = snake.coords[0]['y'] * ai_settings.cell_size + snake_head_rect = pygame.Rect(x, y, ai_settings.cell_size, ai_settings.cell_size) + pygame.draw.rect(screen,(255,255,255), snake_head_rect) + #蛇身内部用浅绿，外框用深绿 + for coord in snake.coords[1: -1]: + x = coord['x'] * ai_settings.cell_size + y = coord['y'] * ai_settings.cell_size + snake_part_rect = pygame.Rect(x, y, ai_settings.cell_size, ai_settings.cell_size) + pygame.draw.rect(screen,(0,155,0), snake_part_rect) + snake_part_inner_rect = pygame.Rect(x + 4, y + 4, ai_settings.cell_size - 8, ai_settings.cell_size - 8) + pygame.draw.rect(screen,(0,255,0), snake_part_inner_rect) + #蛇尾用浅绿 + coord = snake.coords[-1] + x = coord['x'] * ai_settings.cell_size + y = coord['y'] * ai_settings.cell_size + snake_tail_rect = pygame.Rect(x, y, ai_settings.cell_size, ai_settings.cell_size) + pygame.draw.rect(screen,(0,255,0), snake_tail_rect) + +#绘制游戏界面 +def update_screen(settings, screen, snake): + screen.fill(settings.bg_color) + draw_grid(settings, screen) + #移动蛇 + del snake.coords[-1]#加蛇头 + snake.update()#去蛇尾 + if not is_game_over(settings, snake): + settings.game_mode = -1 + else: + draw_snake(settings, screen, snake) + pygame.display.flip() + #暂停一下 + settings.my_clock.tick(settings.clock_frq) + +def is_game_over(settings,snake): + #碰到左右墙壁 + if (snake.coords[snake.head_index]['x'] == -1 or snake.coords[snake.head_index]['x'] == settings.cell_w): + return False + #碰到上下墙壁 + if(snake.coords[snake.head_index]['y'] == -1 or snake.coords[snake.head_index]['y'] == settings.cell_h): + return False + #碰到自己 + if(snake.coords[snake.head_index] in snake.coords[1:]): + return False + return True + + +#检测游戏过程中的按键 +def check_play_events(snake): + 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_ESCAPE: + pygame.quit() + sys.exit() + elif event.key == pygame.K_LEFT and not snake.direction == 'right': + snake.direction = 'left' + elif event.key == pygame.K_RIGHT and not snake.direction == 'left': + snake.direction = 'right' + elif event.key == pygame.K_UP and not snake.direction == 'down': + snake.direction = 'up' + elif event.key == pygame.K_DOWN and not snake.direction == 'up': + snake.direction = 'down' \ No newline at end of file diff --git a/idea.km b/idea.km deleted file mode 100644 index 2f30464..0000000 --- a/idea.km +++ /dev/null @@ -1,115 +0,0 @@ -{ - "root": { - "data": { - "id": "d2oi0jx7h6o0", - "created": 1720882729134, - "text": "Astar贪吃蛇" - }, - "children": [ - { - "data": { - "id": "d2oi1r6uoww0", - "created": 1720882823319, - "text": "游戏本体(Pygame)", - "layout_mind_offset": { - "x": -29, - "y": 1 - } - }, - "children": [ - { - "data": { - "id": "d2oi2k2ygw00", - "created": 1720882886210, - "text": "蛇", - "expandState": "expand", - "layout_right_offset": { - "x": 8, - "y": -54 - } - }, - "children": [ - { - "data": { - "id": "d2oi21ezqoo0", - "created": 1720882845579, - "text": "如何表示蛇" - }, - "children": [] - }, - { - "data": { - "id": "d2oi2vcyync0", - "created": 1720882910760, - "text": "蛇如何移动" - }, - "children": [] - }, - { - "data": { - "id": "d2oi30i8aj40", - "created": 1720882921962, - "text": "如何判定游戏结束？" - }, - "children": [] - } - ] - }, - { - "data": { - "id": "d2oi3jwwljc0", - "created": 1720882964209, - "text": "食物" - }, - "children": [ - { - "data": { - "id": "d2oi3vw1ujc0", - "created": 1720882990278, - "text": "如何生成食物" - }, - "children": [] - } - ] - }, - { - "data": { - "id": "d2oi7hsyoao0", - "created": 1720883273073, - "text": "界面" - }, - "children": [] - } - ] - }, - { - "data": { - "id": "d2oijamyvjc0", - "created": 1720884197843, - "text": "游戏玩法" - }, - "children": [ - { - "data": { - "id": "d2oi4mwhxi80", - "created": 1720883049078, - "text": "自动(A*寻路算法）" - }, - "children": [] - }, - { - "data": { - "id": "d2oijfl72io0", - "created": 1720884208620, - "text": "手动" - }, - "children": [] - } - ] - } - ] - }, - "template": "default", - "theme": "snow", - "version": "1.4.43" -} \ No newline at end of file diff --git a/idea.png b/idea.png deleted file mode 100644 index 1c73717..0000000 Binary files a/idea.png and /dev/null differ diff --git a/main.py b/main.py index bff7e7d..4b622f4 100644 --- a/main.py +++ b/main.py @@ -1,21 +1,30 @@ +import pygame from settings import Settings import game_functions as gf -import pygame - +from snake import Snake + settings = Settings() - -screen = pygame.display.set_mode((settings.width, settings.height)) # 设置屏幕 -pygame.display.set_caption('贪吃蛇') # 添加游戏标题 - - +#设置屏幕 +screen = pygame.display.set_mode((settings.width, settings.height)) +#添加游戏标题 +pygame.display.set_caption('贪吃蛇') +#创建蛇 +snake = Snake(settings) + +def run_game1(): + gf.check_play_events(snake) + gf.update_screen(settings, screen, snake) + def run_game(): - while True: - if settings.game_mode == 0: - gf.show_start(settings, screen) - elif settings.game_mode == -1: - gf.show_end(settings, screen) - - + while True: + if settings.game_mode == 0: + gf.show_start(settings,screen) + elif settings.game_mode == -1: + gf.show_end(settings,screen) + snake.reset(settings) + elif settings.game_mode == 1: + run_game1() + if __name__ == "__main__": - pygame.init() - run_game() + pygame.init() + run_game() \ No newline at end of file diff --git a/snake.py b/snake.py new file mode 100644 index 0000000..0e0a2c6 --- /dev/null +++ b/snake.py @@ -0,0 +1,38 @@ +import random + +class Snake(): + def __init__(self,settings): + self.reset(settings) + + #蛇的初始化 + def reset(self,settings): + #蛇头的坐标 + self.start_x = random.randint(5, settings.cell_w - 6) + self.start_y = random.randint(5, settings.cell_h - 6) + self.head_index = 0 + #蛇的初始运动方向 + self.direction = 'right' + #蛇的初始坐标字典，初始蛇为蛇头位置及其左边的两个格子 + self.coords = [{'x' : self.start_x, 'y': self.start_y}, + {'x' : self.start_x - 1, 'y': self.start_y}, + {'x' : self.start_x - 2, 'y': self.start_y}] + #更新蛇，每次蛇移动一步，因此相当于每次移动在蛇的坐标字典中再插入一个新蛇头 + #按常识，每次移动后，不仅仅是蛇头向前移动一个，更重要的是蛇尾也要向前移，但是在该函数中先不处理蛇尾 + #因为如果蛇吃了食物，此时蛇尾其实并没有移动 + def update(self): + newHead = {} + #根据移动方向确定蛇头 + if self.direction == 'up': + newHead = {'x' : self.coords[self.head_index]['x'], + 'y' : self.coords[self.head_index]['y'] - 1} + elif self.direction == 'down': + newHead = {'x' : self.coords[self.head_index]['x'], + 'y' : self.coords[self.head_index]['y'] + 1} + elif self.direction == 'left': + newHead = {'x' : self.coords[self.head_index]['x'] - 1, + 'y' : self.coords[self.head_index]['y']} + elif self.direction == 'right': + newHead = {'x' : self.coords[self.head_index]['x'] + 1, + 'y' : self.coords[self.head_index]['y']} + self.coords.insert(0,newHead) +