# -*- coding:utf-8 -*-
# title           :带有云层地球模拟
# description     :带有云层地球模拟
# author          :Python超人
# date            :2023-05-01
# link            :https://gitcode.net/pythoncr/
# python_version  :3.8
# ==============================================================================
from bodies import Earth
from common.consts import SECONDS_PER_HOUR, SECONDS_PER_DAY
from sim_scenes.func import ursina_run, create_sphere_sky
from sim_scenes.universe_sim_scenes import UniverseSimScenes
from simulators.ursina.ursina_event import UrsinaEvent

if __name__ == '__main__':
    """
    带有云层地球模拟
    """
    mars = Earth(texture="transformed/mars.jpg", rotate_angle=0,
                 init_position=[0, 0, 0], init_velocity=[0, 0, 0],
                 size_scale=1).set_ignore_gravity()  # 忽略引力

    # 创建带有云层的地球
    earth = Earth(texture="earth_hd.jpg", rotate_angle=0,
                  init_position=[1.5 * mars.diameter, 0, 0],
                  init_velocity=[0, 0, 0],
                  size_scale=1)

    # 创建云层（texture纹理图使用了透明云层的图片，云层的 size_scale 要稍微比火星大一点）
    mars_clouds = Earth(name="火星云层", rotate_angle=0, texture="transparent_clouds.png",
                        size_scale=1.001, parent=mars)

    # 创建云层（texture纹理图使用了透明云层的图片，云层的 size_scale 要稍微比地球大一点）
    earth_clouds = Earth(name="地球云层", rotate_angle=0, texture="transparent_clouds.png",
                         size_scale=1.001, parent=earth)

    bodies = [mars, earth, earth_clouds, mars_clouds]

    current_angle = 0


    def on_ready():
        global current_angle
        from ursina import camera
        # camera.fov = 30
        # 运行前触发
        # create_sphere_sky(scale=10000).rotation_y = 220
        current_angle = earth.planet.rotation_y


    def on_timer_changed(time_data):
        global current_angle
        if abs(earth.planet.rotation_y - current_angle) > 400:
            exit(0)


    UniverseSimScenes.set_window_size((1920, 1079), False)

    # 订阅事件后，上面的函数功能才会起作用
    # 运行前会触发 on_ready
    UrsinaEvent.on_ready_subscription(on_ready)
    UrsinaEvent.on_timer_changed_subscription(on_timer_changed)

    # 使用 ursina 查看的运行效果
    # 常用快捷键： P：运行和暂停  O：重新开始  I：显示天体轨迹
    # position = 左-右+、上+下-、前+后-
    ursina_run(bodies, SECONDS_PER_HOUR / 2,
               position=(1.5 * earth.radius, 0, -30000),
               show_grid=False,
               cosmic_bg='',
               show_camera_info=False,
               show_control_info=False,
               timer_enabled=True,
               view_closely=0.001)  # 近距离观看 view_closely=True或0.001