From d28fe8b20cb5d913f0315d4f18b9179f896adeb0 Mon Sep 17 00:00:00 2001
From: march3 <gang.wei@qq.com>
Date: Sat, 9 Dec 2023 20:55:23 +0800
Subject: [PATCH] =?UTF-8?q?Python=E8=B6=85=E4=BA=BA-=E5=AE=87=E5=AE=99?=
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---
 sim_scenes/featured/eight_stars_alignment.py | 53 ++++++++++++++++----
 1 file changed, 44 insertions(+), 9 deletions(-)

diff --git a/sim_scenes/featured/eight_stars_alignment.py b/sim_scenes/featured/eight_stars_alignment.py
index d61565d..d8e52bb 100644
--- a/sim_scenes/featured/eight_stars_alignment.py
+++ b/sim_scenes/featured/eight_stars_alignment.py
@@ -13,7 +13,7 @@ from bodies import Sun, Mercury, Venus, Earth, Mars, Asteroids, Jupiter, Saturn,
 from common.celestial_data_service import get_body_posvel, recalc_moon_position, calc_solar_acceleration, \
     set_solar_system_celestial_position, set_earth_rotation
 from common.consts import SECONDS_PER_WEEK, SECONDS_PER_DAY, SECONDS_PER_HOUR, AU
-from sim_scenes.func import ursina_run
+from sim_scenes.func import ursina_run, create_sphere_sky, two_bodies_colliding
 from sim_scenes.universe_sim_scenes import UniverseSimScenes
 from simulators.ursina.entities.body_timer import TimeData
 from simulators.ursina.ui.control_ui import ControlUI
@@ -33,6 +33,7 @@ class SolarSystemRealitySim(UniverseSimScenes):
         self.show_earth_clouds = False
         self.debug_mode = False
         self.recalc_moon_pos = True
+        self.target_index = 0
 
     def create_bodies(self):
         """
@@ -75,13 +76,19 @@ class SolarSystemRealitySim(UniverseSimScenes):
         # 所有天体
         self.bodies = [self.sun] + self.planets + [self.moon]
 
-        self.camera_target = self.create_camera_target(init_position=[0, 0, -AU], size_scale=1e4)
+        self.ship = self.create_camera_target(init_position=[0, AU / 10, AU], size_scale=1e4)
 
         if self.show_earth_clouds:
             self.bodies += [self.earth_clouds]
 
         if self.show_asteroids:
-            self.bodies += [self.asteroids, self.camera_target]
+            self.bodies += [self.asteroids]
+
+        self.bodies += [self.ship]
+
+        self.targets = [self.earth, self.venus, self.mercury,
+                        self.saturn, self.mars, self.jupiter,
+                        self.uranus, self.neptune, self.sun]
 
     def init_earth(self):
         """
@@ -129,10 +136,9 @@ class SolarSystemRealitySim(UniverseSimScenes):
         @return:
         """
         # 运行前触发
+        self.set_window_size((1919, 1080), False)
 
-        if self.sky_texture is not None:
-            from simulators.ursina.entities.sphere_sky import SphereSky
-            SphereSky(texture=self.sky_texture).scale = 80000
+        self.sky = create_sphere_sky(scale=80000)
 
         camera.clip_plane_near = 0.1
         camera.clip_plane_far = 100000
@@ -144,16 +150,45 @@ class SolarSystemRealitySim(UniverseSimScenes):
         # 需要按照时间和日期来控制地球的自转，所以删除控制地球自转的属性
         delattr(self.earth.planet, "rotation_speed")
         delattr(self.earth.planet, "rotspeed")
-
+        self.ship.planet.update = lambda: None
         # 设置后，可以调整鼠标键盘的控制速度
         application.time_scale = 1
 
+        self.ship.planet.position = self.earth.planet.position
+
+    def ship_go_target(self):
+        from ursina import distance
+
+        if self.target_index > len(self.targets) - 1:
+            exit(0)
+
+
+        target = self.targets[self.target_index]
+        planet = target.planet.main_entity
+
+        d = distance(planet, self.ship.planet)
+        # r = d * 10
+        # if r<100:
+        #     r = 100
+        r = 500
+        self.ship.planet.look_at(planet)
+        self.ship.planet.position += self.ship.planet.forward * r
+
+        # d = distance(planet, self.ship.planet)
+        # if d / UrsinaConfig.SCALE_FACTOR < 900000:
+        if two_bodies_colliding(target, self.ship):
+            if not hasattr(planet, "arrived"):
+                self.target_index += 1
+                planet.arrived = True
+
     def on_timer_changed(self, time_data: TimeData):
         """
         事件绑定后，时时刻刻都会触发
         @param time_data:
         @return:
         """
+        self.ship_go_target()
+
         dt = time_data.get_datetime(str(self.start_time))
         # 设置天体的位置（包含速度和加速度的信息）
         self.set_bodies_position(time_data)
@@ -236,8 +271,8 @@ if __name__ == '__main__':
     sim = SolarSystemRealitySim()
     sim.run(
         # debug_mode=True,  # 是否调试模式
-        # dt=SECONDS_PER_DAY ,  # 1秒=1天
-        dt=SECONDS_PER_HOUR,  # 1秒=1小时
+        dt=SECONDS_PER_DAY ,  # 1秒=1天
+        # dt=SECONDS_PER_HOUR,  # 1秒=1小时
         # dt=SECONDS_PER_HOUR,  # 1秒=1小时
         start_time='2149-12-10 12:00:00',  # 九(八)星连珠的时间 # https://baijiahao.baidu.com/s?id=1654160345900112362
         # show_asteroids=True,  # 是否显示小行星带（图片模拟）
-- 
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