"""
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()
