Conceptualization of historical geography and its research objectives

好的，下面是使用arcade库实现双人贪吃蛇的代码：

import arcade
import random


# 定义贪吃蛇
class Snake:
    def __init__(self, x, y):
        self.x = x
        self.y = y
        self.w = 20  # 定义蛇头的大小
        self.speed = 20  # 定义每次移动的距离
        self.dir_x = self.speed
        self.dir_y = 0
        self.body = [[x, y], [x-self.w, y], [x-self.w*2, y]]  # 初始化蛇身列表
        self.color = arcade.color.YELLOW_ORANGE  # 定义颜色

    # 更新蛇的位置和方向
    def update(self):
        self.x += self.dir_x
        self.y += self.dir_y
        self.body.insert(0, [self.x, self.y])
        self.body.pop()

    # 绘制蛇
    def draw(self):
        arcade.draw_rectangle_filled(self.x, self.y, self.w, self.w, self.color)
        for i in range(1, len(self.body)):
            arcade.draw_rectangle_filled(self.body[i][0], self.body[i][1], self.w, self.w, arcade.color.YELLOW_ORANGE)


# 定义食物
class Food:
    def __init__(self):
        self.x = random.randint(1, 39) * 20  # 随机生成食物的位置
        self.y = random.randint(1, 39) * 20
        self.w = 20  # 食物的大小
        self.color = arcade.color.RED  # 颜色

    # 重新生成食物
    def respawn(self):
        self.x = random.randint(1, 39) * 20
        self.y = random.randint(1, 39) * 20

    # 绘制食物
    def draw(self):
        arcade.draw_rectangle_filled(self.x, self.y, self.w, self.w, self.color)


class SnakeGame(arcade.Window):
    def __init__(self):
        super().__init__(800, 800, "双人贪吃蛇")
        arcade.set_background_color(arcade.color.BLACK)
        self.snake1 = Snake(200, 200)  # 初始化两只蛇
        self.snake2 = Snake(600, 600)
        self.food = Food()  # 初始化食物

    # 检查蛇是否碰到边缘或者碰到对手
    def check_collisions(self):
        if self.snake1.x < 0 or self.snake1.x > 780 or self.snake1.y < 0 or self.snake1.y > 780:
            arcade.close_window()
            print("Snake 2 Wins!")
        if self.snake2.x < 0 or self.snake2.x > 780 or self.snake2.y < 0 or self.snake2.y > 780:
            arcade.close_window()
            print("Snake 1 Wins!")
        for i in range(1, len(self.snake1.body)):
            if self.snake1.x == self.snake1.body[i][0] and self.snake1.y == self.snake1.body[i][1]:
                arcade.close_window()
                print("Snake 2 Wins!")
        for i in range(1, len(self.snake2.body)):
            if self.snake2.x == self.snake2.body[i][0] and self.snake2.y == self.snake2.body[i][1]:
                arcade.close_window()
                print("Snake 1 Wins!")
        if self.snake1.x == self.snake2.x and self.snake1.y == self.snake2.y:
            arcade.close_window()
            print("Draw!")

    # 蛇吃到食物
    def check_eat(self):
        if self.snake1.x == self.food.x and self.snake1.y == self.food.y:
            self.food.respawn()
            self.snake1.body.append([self.snake1.x, self.snake1.y])
        if self.snake2.x == self.food.x and self.snake2.y == self.food.y:
            self.food.respawn()
            self.snake2.body.append([self.snake2.x, self.snake2.y])

    # 检查键盘输入
    def on_key_press(self, key, modifiers):
        if key == arcade.key.LEFT and self.snake1.dir_x != self.snake1.speed:
            self.snake1.dir_x = -self.snake1.speed
            self.snake1.dir_y = 0
        elif key == arcade.key.RIGHT and self.snake1.dir_x != -self.snake1.speed:
            self.snake1.dir_x = self.snake1.speed
            self.snake1.dir_y = 0
        elif key == arcade.key.UP and self.snake1.dir_y != -self.snake1.speed:
            self.snake1.dir_x = 0
            self.snake1.dir_y = self.snake1.speed
        elif key == arcade.key.DOWN and self.snake1.dir_y != self.snake1.speed:
            self.snake1.dir_x = 0
            self.snake1.dir_y = -self.snake1.speed
        elif key == arcade.key.A and self.snake2.dir_x != self.snake2.speed:
            self.snake2.dir_x = -self.snake2.speed
            self.snake2.dir_y = 0
        elif key == arcade.key.D and self.snake2.dir_x != -self.snake2.speed:
            self.snake2.dir_x = self.snake2.speed
            self.snake2.dir_y = 0
        elif key == arcade.key.W and self.snake2.dir_y != -self.snake2.speed:
            self.snake2.dir_x = 0
            self.snake2.dir_y = self.snake2.speed
        elif key == arcade.key.S and self.snake2.dir_y != self.snake2.speed:
            self.snake2.dir_x = 0
            self.snake2.dir_y = -self.snake2.speed

    # 每帧更新
    def on_draw(self):
        arcade.start_render()
        self.snake1.draw()
        self.snake2.draw()
        self.food.draw()

    # 更新位置
    def update(self, delta_time):
        self.snake1.update()
        self.snake2.update()
        self.check_collisions()
        self.check_eat()


if __name__ == '__main__':
    game = SnakeGame()
    arcade.run()

希望对你有所帮助!