__author__ = 'ChenYan' from tkinter import * import threading import queue import time import random class GUI(Tk): '''class GUI use to create the gui''' def __init__(self, queue): Tk.__init__(self) self.queue = queue self.is_game_over = False self.canvas = Canvas(self, width=495, height=305, bg='#000000') self.canvas.pack() self.snake = self.canvas.create_line((0,0),(0,0), fill='#FFFF00', width=10) self.food = self.canvas.create_rectangle(0,0,0,0, fill='#00FF00', outline='#00FF00') self.point_score = self.canvas.create_text(455, 15, fill='white', text='score:0') self.queue_handler() def restart(self): self.destroy() main() def queue_handler(self): try: while True: task = self.queue.get(block=False) if task.get('game_over'): self.game_over() elif task.get('move'): points = [x for point in task['move'] for x in point] self.canvas.coords(self.snake, *points) elif task.get('food'): self.canvas.coords(self.food, *task['food']) elif task.get('points_score'): self.canvas.itemconfigure(self.point_score, text='score:{}'.format(task['points_score'])) self.queue.task_done() except queue.Empty: if not self.is_game_over: self.canvas.after(100, self.queue_handler) def game_over(self): self.is_game_over = True self.canvas.create_text(220, 150, fill='white',text='Game Over!') quitbtn = Button(self, text='Quit', command=self.destroy) retbtn = Button(self, text='Resume', command=self.restart) self.canvas.create_window(230, 180, anchor=W, window=quitbtn) self.canvas.create_window(200, 180, anchor=E, window=retbtn) class Food(): '''class Food use to make food''' def __init__(self, queue): self.queue = queue self.make_food() def make_food(self): x = random.randrange(5, 480, 10) y = random.randrange(5, 295, 10) self.position = x,y self.exppos = x-5,y-5,x+5,y+5 self.queue.put({'food':self.exppos}) class Snake(threading.Thread): '''class Snake use to create snake and response action''' def __init__(self, gui, queue): threading.Thread.__init__(self) self.gui = gui self.queue = queue self.daemon = True self.points_score = 0 self.snake_points = [(495,55),(485,55),(475,55),(465,55),(455,55)] self.food = Food(queue) self.direction = 'Left' self.start() def run(self): if self.gui.is_game_over: self._delete() while not self.gui.is_game_over: self.queue.put({'move':self.snake_points}) time.sleep(0.2) self.move() def key_pressed(self,e): self.direction = e.keysym def move(self): new_snake_point = self.calculate_new_coordinates() if self.food.position == new_snake_point: add_snake_point = self.calculate_new_coordinates() self.snake_points.append(add_snake_point) self.points_score += 1 self.queue.put({'points_score':self.points_score}) self.food.make_food() else: self.snake_points.pop(0) self.check_game_over(new_snake_point) self.snake_points.append(new_snake_point) def calculate_new_coordinates(self): last_x,last_y = self.snake_points[-1] if self.direction == 'Up': new_snake_point = last_x,last_y-10 elif self.direction == 'Down': new_snake_point = last_x,last_y+10 elif self.direction == 'Left': new_snake_point = last_x-10,last_y elif self.direction == 'Right': new_snake_point = last_x+10,last_y return new_snake_point def check_game_over(self, snake_point): x,y = snake_point[0],snake_point[1] if not -5 < x < 505 or not -5 < y < 315 or snake_point in self.snake_points: self.queue.put({'game_over':True}) def main(): q = queue.Queue() gui = GUI(q) gui.title("我的贪吃蛇") snake = Snake(gui, q) gui.bind('<Key-Left>', snake.key_pressed) gui.bind('<Key-Right>', snake.key_pressed) gui.bind('<Key-Up>', snake.key_pressed) gui.bind('<Key-Down>', snake.key_pressed) gui.mainloop() if __name__ == '__main__': main() 复制代码
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