代码收藏家技术教程 2024-10-02

Python贪吃蛇游戏实现详解（附完整代码及教程）

import tkinter as tk
import random

class SnakeGame(tk.Tk):
    def __init__(self):
        super().__init__()
        self.title("贪吃蛇游戏")
        self.geometry("400x400")
        self.snake_positions = [(100, 100), (90, 100), (80, 100)]
        self.food_position = self.set_new_food_position()
        self.direction = 'Right'
        self.score = 0
        self.speed = 100
        self.canvas = tk.Canvas(self, bg='black', height=400, width=400)
        self.canvas.pack()
        self.bind('<Key>', self.on_key_press)
        self.game_loop()

    def game_loop(self):
        if self.check_collision():
            self.game_over()
            return
        self.move_snake()
        if self.snake_positions[0] == self.food_position:
            self.score += 1
            self.speed -= 5
            self.snake_positions.append(self.snake_positions[-1])
            self.food_position = self.set_new_food_position()
        self.canvas.delete('all')
        self.draw_elements()
        self.after(self.speed, self.game_loop)

    def move_snake(self):
        head_x, head_y = self.snake_positions[0]
        if self.direction == 'Up':
            new_head = (head_x, head_y - 10)
        elif self.direction == 'Down':
            new_head = (head_x, head_y + 10)
        elif self.direction == 'Left':
            new_head = (head_x - 10, head_y)
        else:  # Right
            new_head = (head_x + 10, head_y)
        self.snake_positions.insert(0, new_head)
        self.snake_positions.pop()

    def draw_elements(self):
        for pos in self.snake_positions:
            self.canvas.create_rectangle(pos[0], pos[1], pos[0]+10, pos[1]+10, fill='green')
        self.canvas.create_oval(self.food_position[0]-10, self.food_position[1]-10,
                                self.food_position[0]+10, self.food_position[1]+10, fill='red')
        self.canvas.create_text(200, 20, text=f"Score: {self.score}", fill='white')


    def set_new_food_position(self):
        while True:
            x = random.randint(0, 39) * 10
            y = random.randint(0, 39) * 10
            if (x, y) not in self.snake_positions:
                return x, y

    def on_key_press(self, e):
        if e.keysym == 'Up' and self.direction != 'Down':
            self.direction = 'Up'
        elif e.keysym == 'Down' and self.direction != 'Up':
            self.direction = 'Down'
        elif e.keysym == 'Left' and self.direction != 'Right':
            self.direction = 'Left'
        elif e.keysym == 'Right' and self.direction != 'Left':
            self.direction = 'Right'

    def check_collision(self):
        head_x, head_y = self.snake_positions[0]
        return (head_x, head_y) in self.snake_positions[1:] or \
               head_x < 0 or head_x >= 400 or head_y < 0 or head_y >= 400

    def game_over(self):
        self.canvas.create_text(200, 200, text="Game Over!", fill='white', font=('Arial', 20))
        self.unbind('<Key>')
        self.after(2000, self.destroy)

if __name__ == "__main__":
    game = SnakeGame()
    game.mainloop()

注意：用户可通过上下左右箭头操控贪吃蛇的移动方向

效果如下：