# -*- coding:utf-8 -*-
# title           :地球3D效果
# description     :地球3D效果
# 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
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__':
    """
    地球3D效果（透视3D地球）
    """
    # 创建带有云层的地球
    earth = Earth(
        # texture="earth_hd.jpg",
        texture="earth_hd_trans.png",
        rotate_angle=-23.44,
        init_position=[0, 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 要稍微比地球大一点）
    clouds = Earth(name="地球云层", texture="transparent_clouds.png",
                   rotate_angle=-23.44,
                   size_scale=1.001, parent=earth)

    bodies = [earth, clouds]

    # TODO: 开启3D摄像机
    from simulators.ursina.entities.camera3d import Camera3d

    # 3D摄像机初始化(两眼到鼻梁的距离为1000公里效果)
    Camera3d.init(eye_distance=1000)

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

    sky = None


    def on_ready():
        global sky
        sky = create_sphere_sky(texture="bg_pan2.jpg", scale=10000, rotation_x=20, rotation_y=160, rotation_z=20)


    def on_timer_changed(time_data):
        global sky, earth

        # print(earth.planet.rotation_y)

        sky.rotation_z -= 0.04
        print(earth.planet.rotation_y)
        if abs(earth.planet.rotation_y) > 380:
            exit(0)


    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 / 5,
               position=(1.8 * earth.radius, 0, -38000),
               cosmic_bg="",  # 无背景（黑色）
               show_grid=False,  # 不显示网格
               timer_enabled=True,
               show_camera_info=False,  # 不显示摄像机信息
               show_control_info=False,  # 不显示控制提示信息
               view_closely=0.001)  # 近距离观看 view_closely=True或0.001