Python超人-宇宙模拟器

objs/__init__.py

@@ -3,5 +3,6 @@ from objs.diamond import Diamond
 from objs.football import Football
 from objs.satellite import Satellite, Satellite2
 from objs.space_ship import SpaceShip
+from objs.star_wars_speeder import StarWarsSpeeder
 from objs.rock_snow import RockSnow
 from objs.rock import Rock, create_rock

objs/football.py

@@ -45,3 +45,4 @@ class Football(Obj):
 if __name__ == '__main__':
     football = Football()
     print(football)
+    football.show_demo()

objs/obj.py

@@ -477,6 +477,21 @@ class Obj(metaclass=ABCMeta):
 
         return body_data
 
+    def show_demo(self, size_scale=10000):
+        from sim_scenes.func import ursina_run
+        from sim_scenes.func import camera_look_at
+        from simulators.ursina.ursina_event import UrsinaEvent
+
+        self.size_scale = size_scale
+        self.init_position = np.array([0, -3000000, 9000000])
+        def on_ready():
+            camera_look_at(self)
+
+        # 运行前会触发 on_ready
+        UrsinaEvent.on_ready_subscription(on_ready)
+
+        ursina_run(bodies=[self], position=(0, 0, 0))
+
 
 if __name__ == '__main__':
     # build_bodies_from_json('../data/sun.json')

objs/space_ship.py

@@ -46,3 +46,4 @@ class SpaceShip(Obj):
 if __name__ == '__main__':
     spaceship = SpaceShip()
     print(spaceship)
+    spaceship.show_demo(size_scale=1000000)

objs/star_wars_speeder.py

+# -*- coding:utf-8 -*-
+# title           :太空飞船
+# description     :太空飞船
+# author          :Python超人
+# date            :2023-02-11
+# link            :https://gitcode.net/pythoncr/
+# python_version  :3.8
+# ==============================================================================
+from objs.obj import Obj
+
+
+class StarWarsSpeeder(Obj):
+    """
+    太空战机
+    来源：https://www.3dcool.net/model/12/65699.html
+    """
+
+    def __init__(self, name="太空战机", mass=5.97237e24,
+                 init_position=[0, 0, 0],
+                 init_velocity=[0, 0, 0],
+                 texture="star_wars_speeder.jpg", size_scale=1.0, distance_scale=1.0,
+                 ignore_mass=False, density=1e3, color=(7, 0, 162),
+                 trail_color=None, show_name=False,
+                 model="star_wars_speeder.obj", rotation=(0, 0, 0),
+                 parent=None, gravity_only_for=[]):
+        params = {
+            "name": name,
+            "mass": mass,
+            "init_position": init_position,
+            "init_velocity": init_velocity,
+            "density": density,
+            "color": color,
+            "texture": texture,
+            "size_scale": size_scale,
+            "distance_scale": distance_scale,
+            "ignore_mass": ignore_mass,
+            "trail_color": trail_color,
+            "show_name": show_name,
+            "parent": parent,
+            "rotation": rotation,
+            "gravity_only_for": gravity_only_for,
+            "model": model
+        }
+        super().__init__(**params)
+
+
+if __name__ == '__main__':
+    star_wars_speeder = StarWarsSpeeder(size_scale=10000)
+    print(star_wars_speeder)
+    star_wars_speeder.show_demo()
+