"""
Arcade触发器例子角色自定义属性演示，还展示了any和all函数的用法。
操作方法：用鼠标指针操作小人，去碰撞金币，它们就会亮起来。
然后碰右下角的道具，它会把点亮的金币删除。译：lixingqiu
本程序需要Arcade模块运行，它是制作街机游戏的一个Python库。
any函数：可迭代序列中有一个数据用bool运算的结果为真，即为真。
all函数：可迭代序列中有一个数据用bool运算的结果为假，则为假，全部为真，则为真，要不怎么叫all呢。
>>> help(any)
Help on built-in function any in module builtins: 内置模块中的内置函数
any(iterable, /)
Return True if bool(x) is True for any x in the iterable.可迭代序列中有一个bool运算为真则返回真
If the iterable is empty, return False.如果可迭代序列是空的，返回假
>>> help(all)
Help on built-in function all in module builtins:
all(iterable, /) 可迭代序列中所有bool运算为真才返回真
Return True if bool(x) is True for all values x in the iterable.
If the iterable is empty, return True.如果可迭代序列是空的，返回真
>>>
"""
import arcade
import os
# 常量定义
SPRITE_SCALING_PLAYER = 0.5
SCREEN_WIDTH = 800
SCREEN_HEIGHT = 600
SCREEN_TITLE = "Arcade触发器例子角色自定义属性演示,改编：李兴球"
class MyGame(arcade.Window):
""" Our custom Window Class"""
def __init__(self):
""" Initializer """
# 调用父类的初始化方法新建一个窗口
super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
# 角色列表定义
self.player_list = None
self.coin_list = None
# 玩家角色定义
self.player_sprite = None
# 道具角色定义(触发器)
self.trigger_sprite = None
# 不显示鼠标指针
self.set_mouse_visible(False)
arcade.set_background_color(arcade.color.AMAZON)
def setup(self):
""" 设置游戏，初始化变量"""
# 实例化角色列表
self.player_list = arcade.SpriteList()
self.coin_list = arcade.SpriteList()
# 实例化角色
self.player_sprite = arcade.Sprite("images/character.png", SPRITE_SCALING_PLAYER)
self.player_sprite.center_x = 50 # 角色x坐标
self.player_sprite.center_y = 150 # 角色的y坐标
self.player_list.append(self.player_sprite)
# 实例化一些金币
for x in range(100, 800, 100):
coin = arcade.Sprite("images/coin_01.png", scale=0.3, center_x=x, center_y=400)
coin.intensity = 'dim' # 这是增加的一个属性
coin.alpha = 64 # 透明度
self.coin_list.append(coin)
# 创建一个触发器
self.trigger_sprite = arcade.Sprite("images/bumper.png", scale=0.5, center_x=750, center_y=50)
def on_draw(self):
""" Draw everything """
arcade.start_render()
self.coin_list.draw()
self.trigger_sprite.draw()
self.player_list.draw()
# Put the instructions on the screen.
instructions1 = "去碰金币，点亮它吧."
arcade.draw_text(instructions1, 10, 90, arcade.color.WHITE, 14,font_name='simhei')
instructions2 = "去碰右下角的道具把亮着的金币销毁吧."
arcade.draw_text(instructions2, 10, 70, arcade.color.WHITE, 14,font_name='simhei' )
# Query the property on the coins and show results.
coins_are_bright = [coin.intensity == 'bright' for coin in self.coin_list]
output_any = f"有金币被点亮了吗? : {any(coins_are_bright)}"
arcade.draw_text(output_any, 10, 40, arcade.color.WHITE, 14,font_name='simhei')
output_all = f"所有金币都被点亮了? : {all(coins_are_bright)}"
arcade.draw_text(output_all, 10, 20, arcade.color.WHITE, 14,font_name='simhei')
def on_mouse_motion(self, x, y, dx, dy):
""" 处理鼠标移动 """
# 把玩家的坐标放到鼠标指针的坐标
self.player_sprite.center_x = x
self.player_sprite.center_y = y
def update(self, delta_time):
""" 移动和游戏逻辑 """
# 更新所有的金币
self.coin_list.update()
# 玩家在on_mouse_motion方法中，坐标已经实时更新
# 创建所碰到的金币列表
coins_hit_list = arcade.check_for_collision_with_list(self.player_sprite, self.coin_list)
# 遍历所碰到的金币，把它们点亮
for coin in coins_hit_list:
coin.intensity = 'bright'
coin.alpha = 255
hit_trigger = arcade.check_for_collision(self.player_sprite, self.trigger_sprite)
if hit_trigger:
# 返回亮了的金币列表
intense_sprites = [sprite for sprite in self.coin_list if sprite.intensity == 'bright']
for coin in intense_sprites:
coin.kill()
def main():
""" Main method """
window = MyGame()
window.setup()
arcade.run()
if __name__ == "__main__":
main()
