Home > Article > Backend Development > How to implement 24-point game with Python+Pygame
(1) What is a 24-point game
Board and card puzzle game, the result is required to be equal to twenty-four
(2)Game rules
Pick any 4 numbers (1--10), and use addition, subtraction, multiplication, and division (parentheses can be added) to calculate the number to 24. Each number must be used once and only once. "Counting 24 points" is an intellectual game that exercises thinking. You should also pay attention to the technical issues in calculation. When calculating, it is impossible for us to try different combinations of the four numbers on the card, let alone mess around.
Example: 3, 8, 8, 9
Answer: 3×8÷(9-8)=24
1. Define this part of the game code in lowercase game.py file
''' 定义游戏 ''' import copy import random import pygame ''' Function: 卡片类 Initial Args: --x,y: 左上角坐标 --width: 宽 --height: 高 --text: 文本 --font: [字体路径, 字体大小] --font_colors(list): 字体颜色 --bg_colors(list): 背景色 ''' class Card(pygame.sprite.Sprite): def __init__(self, x, y, width, height, text, font, font_colors, bg_colors, attribute, **kwargs): pygame.sprite.Sprite.__init__(self) self.rect = pygame.Rect(x, y, width, height) self.text = text self.attribute = attribute self.font_info = font self.font = pygame.font.Font(font[0], font[1]) self.font_colors = font_colors self.is_selected = False self.select_order = None self.bg_colors = bg_colors '''画到屏幕上''' def draw(self, screen, mouse_pos): pygame.draw.rect(screen, self.bg_colors[1], self.rect, 0) if self.rect.collidepoint(mouse_pos): pygame.draw.rect(screen, self.bg_colors[0], self.rect, 0) font_color = self.font_colors[self.is_selected] text_render = self.font.render(self.text, True, font_color) font_size = self.font.size(self.text) screen.blit(text_render, (self.rect.x+(self.rect.width-font_size[0])/2, self.rect.y+(self.rect.height-font_size[1])/2)) '''按钮类''' class Button(Card): def __init__(self, x, y, width, height, text, font, font_colors, bg_colors, attribute, **kwargs): Card.__init__(self, x, y, width, height, text, font, font_colors, bg_colors, attribute) '''根据button function执行响应操作''' def do(self, game24_gen, func, sprites_group, objs): if self.attribute == 'NEXT': for obj in objs: obj.font = pygame.font.Font(obj.font_info[0], obj.font_info[1]) obj.text = obj.attribute self.font = pygame.font.Font(self.font_info[0], self.font_info[1]) self.text = self.attribute game24_gen.generate() sprites_group = func(game24_gen.numbers_now) elif self.attribute == 'RESET': for obj in objs: obj.font = pygame.font.Font(obj.font_info[0], obj.font_info[1]) obj.text = obj.attribute game24_gen.numbers_now = game24_gen.numbers_ori game24_gen.answers_idx = 0 sprites_group = func(game24_gen.numbers_now) elif self.attribute == 'ANSWERS': self.font = pygame.font.Font(self.font_info[0], 20) self.text = '[%d/%d]: ' % (game24_gen.answers_idx+1, len(game24_gen.answers)) + game24_gen.answers[game24_gen.answers_idx] game24_gen.answers_idx = (game24_gen.answers_idx+1) % len(game24_gen.answers) else: raise ValueError('Button.attribute unsupport %s, expect %s, %s or %s...' % (self.attribute, 'NEXT', 'RESET', 'ANSWERS')) return sprites_group '''24点游戏生成器''' class game24Generator(): def __init__(self): self.info = 'game24Generator' '''生成器''' def generate(self): self.__reset() while True: self.numbers_ori = [random.randint(1, 10) for i in range(4)] self.numbers_now = copy.deepcopy(self.numbers_ori) self.answers = self.__verify() if self.answers: break '''只剩下一个数字时检查是否为24''' def check(self): if len(self.numbers_now) == 1 and float(self.numbers_now[0]) == self.target: return True return False '''重置''' def __reset(self): self.answers = [] self.numbers_ori = [] self.numbers_now = [] self.target = 24. self.answers_idx = 0 '''验证生成的数字是否有答案''' def __verify(self): answers = [] for item in self.__iter(self.numbers_ori, len(self.numbers_ori)): item_dict = [] list(map(lambda i: item_dict.append({str(i): i}), item)) solution1 = self.__func(self.__func(self.__func(item_dict[0], item_dict[1]), item_dict[2]), item_dict[3]) solution2 = self.__func(self.__func(item_dict[0], item_dict[1]), self.__func(item_dict[2], item_dict[3])) solution = dict() solution.update(solution1) solution.update(solution2) for key, value in solution.items(): if float(value) == self.target: answers.append(key) # 避免有数字重复时表达式重复(T_T懒得优化了) answers = list(set(answers)) return answers '''递归枚举''' def __iter(self, items, n): for idx, item in enumerate(items): if n == 1: yield [item] else: for each in self.__iter(items[:idx]+items[idx+1:], n-1): yield [item] + each '''计算函数''' def __func(self, a, b): res = dict() for key1, value1 in a.items(): for key2, value2 in b.items(): res.update({'('+key1+'+'+key2+')': value1+value2}) res.update({'('+key1+'-'+key2+')': value1-value2}) res.update({'('+key2+'-'+key1+')': value2-value1}) res.update({'('+key1+'×'+key2+')': value1*value2}) value2 > 0 and res.update({'('+key1+'÷'+key2+')': value1/value2}) value1 > 0 and res.update({'('+key2+'÷'+key1+')': value2/value1}) return res
2. Game main function
def main(): # 初始化, 导入必要的游戏素材 pygame.init() pygame.mixer.init() screen = pygame.display.set_mode(SCREENSIZE) pygame.display.set_caption('24点小游戏') win_sound = pygame.mixer.Sound(AUDIOWINPATH) lose_sound = pygame.mixer.Sound(AUDIOLOSEPATH) warn_sound = pygame.mixer.Sound(AUDIOWARNPATH) pygame.mixer.music.load(BGMPATH) pygame.mixer.music.play(-1, 0.0) # 24点游戏生成器 game24_gen = game24Generator() game24_gen.generate() # 精灵组 # --数字 number_sprites_group = getNumberSpritesGroup(game24_gen.numbers_now) # --运算符 operator_sprites_group = getOperatorSpritesGroup(OPREATORS) # --按钮 button_sprites_group = getButtonSpritesGroup(BUTTONS) # 游戏主循环 clock = pygame.time.Clock() selected_numbers = [] selected_operators = [] selected_buttons = [] is_win = False while True: for event in pygame.event.get(): if event.type == pygame.QUIT: pygame.quit() sys.exit(-1) elif event.type == pygame.MOUSEBUTTONUP: mouse_pos = pygame.mouse.get_pos() selected_numbers = checkClicked(number_sprites_group, mouse_pos, 'NUMBER') selected_operators = checkClicked(operator_sprites_group, mouse_pos, 'OPREATOR') selected_buttons = checkClicked(button_sprites_group, mouse_pos, 'BUTTON') screen.fill(AZURE) # 更新数字 if len(selected_numbers) == 2 and len(selected_operators) == 1: noselected_numbers = [] for each in number_sprites_group: if each.is_selected: if each.select_order == '1': selected_number1 = each.attribute elif each.select_order == '2': selected_number2 = each.attribute else: raise ValueError('Unknow select_order %s, expect 1 or 2...' % each.select_order) else: noselected_numbers.append(each.attribute) each.is_selected = False for each in operator_sprites_group: each.is_selected = False result = calculate(selected_number1, selected_number2, *selected_operators) if result is not None: game24_gen.numbers_now = noselected_numbers + [result] is_win = game24_gen.check() if is_win: win_sound.play() if not is_win and len(game24_gen.numbers_now) == 1: lose_sound.play() else: warn_sound.play() selected_numbers = [] selected_operators = [] number_sprites_group = getNumberSpritesGroup(game24_gen.numbers_now) # 精灵都画到screen上 for each in number_sprites_group: each.draw(screen, pygame.mouse.get_pos()) for each in operator_sprites_group: each.draw(screen, pygame.mouse.get_pos()) for each in button_sprites_group: if selected_buttons and selected_buttons[0] in ['RESET', 'NEXT']: is_win = False if selected_buttons and each.attribute == selected_buttons[0]: each.is_selected = False number_sprites_group = each.do(game24_gen, getNumberSpritesGroup, number_sprites_group, button_sprites_group) selected_buttons = [] each.draw(screen, pygame.mouse.get_pos()) # 游戏胜利 if is_win: showInfo('Congratulations', screen) # 游戏失败 if not is_win and len(game24_gen.numbers_now) == 1: showInfo('Game Over', screen) pygame.display.flip() clock.tick(30)
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