python的街机模块实现的多关卡金币收集小游戏

"""
多关卡金币收集小游戏,这个是用Arcade街机游戏模块制作的一个多关卡金币收集游戏。
安装街机模块请用:pip install arcade
"""

import random
import arcade
import os

SPRITE_SCALING = 0.5

SCREEN_WIDTH = 800
SCREEN_HEIGHT = 600
SCREEN_TITLE = "python的街机模块实现的多关卡金币收集小游戏"


class FallingCoin(arcade.Sprite):
    """ Simple sprite that falls down """

    def update(self):
        """ Move the coin """

        # y坐标减小
        self.center_y -= 2
        # 如果到了最底下那么移到最上面
        if self.top < 0:
            self.bottom = SCREEN_HEIGHT


class RisingCoin(arcade.Sprite):
    """ Simple sprite that falls up """

    def update(self):
        """ Move the coin """

        # y坐标增加
        self.center_y += 2

        # 如果到了最上面那么移到最底下
        if self.bottom > SCREEN_HEIGHT:
            self.top = 0


class MyGame(arcade.Window):
    """
    Main application class.
    """

    def __init__(self, width, height, title):
        """ Initialize """

        # 调用父类初始化方法
        super().__init__(width, height, title)

        # 设置工作目录
        file_path = os.path.dirname(os.path.abspath(__file__))
        os.chdir(file_path)

        # 列表定义
        self.player_list = None
        self.coin_list = None

        # 玩家信息相关变量定义
        self.player_sprite = None
        self.score = 0

        self.level = 1 # 第一关

        # 隐藏鼠标指针
        self.set_mouse_visible(False)

        # 设置背景颜色
        arcade.set_background_color(arcade.color.AMAZON)

    def level_1(self):
        for i in range(20):

            # 创建静止的金币
            coin = arcade.Sprite("images/coin_01.png", SPRITE_SCALING / 3)

            # 随机放置位置
            coin.center_x = random.randrange(SCREEN_WIDTH)
            coin.center_y = random.randrange(SCREEN_HEIGHT)

            # 增加到金币列表
            self.coin_list.append(coin)

    def level_2(self):
        for i in range(30):

            #  创建下落的金币
            coin = FallingCoin("images/gold_1.png", SPRITE_SCALING / 2)

            # 随机放置位置
            coin.center_x = random.randrange(SCREEN_WIDTH)
            coin.center_y = random.randrange(SCREEN_HEIGHT, SCREEN_HEIGHT * 2)

            # 增加到金币列表
            self.coin_list.append(coin)

    def level_3(self):
        for i in range(30):

            #  创建上升的金币
            coin = RisingCoin("images/gold_1.png", SPRITE_SCALING / 2)

            # 随机放置位置
            coin.center_x = random.randrange(SCREEN_WIDTH)
            coin.center_y = random.randrange(-SCREEN_HEIGHT, 0)

            # 增加到金币列表
            self.coin_list.append(coin)

    def setup(self):
        """ Set up the game and initialize the variables. """

        self.score = 0
        self.level = 1

        # 角色列表实例化
        self.player_list = arcade.SpriteList()
        self.coin_list = arcade.SpriteList()

        # 设置玩家
        self.player_sprite = arcade.Sprite("images/character.png",
                                           SPRITE_SCALING)
        self.player_sprite.center_x = 50
        self.player_sprite.center_y = 50
        self.player_list.append(self.player_sprite)

        self.level_1()

    def on_draw(self):
        """
        渲染屏幕
        """

        # 此命令要在所有重画命令之前
        arcade.start_render()

        # 画所有角色
        self.player_sprite.draw()
        self.coin_list.draw()

        # 放显示得分的文本和关卡号
        output = f"Score: {self.score}"
        arcade.draw_text(output, 10, 20, arcade.color.WHITE, 15)

        output = f"Level: {self.level}"
        arcade.draw_text(output, 10, 35, arcade.color.WHITE, 15)

    def on_mouse_motion(self, x, y, dx, dy):
        """
        鼠标移动事件
        """
        self.player_sprite.center_x = x
        self.player_sprite.center_y = y

    def update(self, delta_time):
        """ 移动和游戏逻辑"""
        
        self.coin_list.update()

        # 创建玩家和所有金币的碰撞列表
        hit_list = arcade.check_for_collision_with_list(self.player_sprite, self.coin_list)

        # 碰到的金币被删除并且加分.
        for coin in hit_list:
            coin.kill()
            self.score += 1

        # 金币收集完了则下一关
        if len(self.coin_list) == 0 and self.level == 1:
            self.level += 1
            self.level_2()
        # See if we should go to level 3
        elif len(self.coin_list) == 0 and self.level == 2:
            self.level += 1
            self.level_3()


def main():
    """ Main method """
    window = MyGame(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
    window.setup()
    arcade.run()


if __name__ == "__main__":
    main()