Python超人-宇宙模拟器

sim_scenes/earth/parallel_earths.py

+# -*- coding:utf-8 -*-
+# title           :平行宇宙的地球们
+# description     :平行宇宙的地球们
+# author          :Python超人
+# date            :2023-07-01
+# link            :https://gitcode.net/pythoncr/
+# python_version  :3.8
+# ==============================================================================
+import random
+
+from bodies import Earth, Moon
+from common.consts import SECONDS_PER_DAY, SECONDS_PER_WEEK, SECONDS_PER_MONTH
+from sim_scenes.func import ursina_run, camera_look_at
+from simulators.ursina.entities.sphere_sky import SphereSky
+from simulators.ursina.ursina_config import UrsinaConfig
+from simulators.ursina.ursina_event import UrsinaEvent
+
+
+def sim_show():
+    bodies = []
+    num = 2
+    r = 30000
+    for x in range(-num, num):
+        for y in range(-num, num):
+            for z in range(-num, num):
+                earth = Earth(init_position=[r * x, r * y, r * z],
+                              rotation_speed=0,
+                              rotate_angle=0,
+                              init_velocity=[0, 0, 0], size_scale=1, ignore_mass=True)
+                # earth.rotation_speed /= 50  # 地球的转速降低50倍
+                bodies.append(earth)
+
+    # 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_DAY,
+               position=(0, 0, -r * num * 6), show_grid=False
+               )
+
+
+def ursina_show():
+    from ursina import Ursina, Entity, color, EditorCamera, camera
+    app = Ursina()
+    SphereSky(texture='../../textures/bg_black.png')
+    num = 5
+    num_x = num * 2
+    num_y = num
+    num_z = num * 2
+    r = 10
+
+    def create_sphere(x, y, z):
+        sphere = Entity(model="sphere", texture='../../textures/earth2.jpg',
+                        x=x * r * 2, y=y * r,  z=z * r * 2, scale=3)
+        sphere.name = "%s:%s:%s" % (x, y, z)
+
+        def update():
+            def inner(s, b):
+                if not hasattr(s, "initial_y"):
+                    s.rotation_y -= 1
+                # print(s.name, s.rotation_y)
+
+            return inner(sphere, y)
+
+        sphere.update = update
+
+    for x in range(-num_x, num_x):
+        for y in range(-num_y, num_y):
+            for z in range(-num_z, num_z):
+                create_sphere(x, y, z)
+
+    ed = EditorCamera()
+    camera.fov = 80
+    ed.position = [0, 0, r/2]
+    import sys
+    camera.x_d = 1
+    camera.y_d = 1
+    camera.z_d = 1
+
+    def camera_update():
+        camera.world_rotation_y += 0.05
+        camera.world_rotation_z += 0.01
+        # camera.x += ((random.randint(100, 300) - 100) / 3000) * camera.x_d
+        camera.y += ((random.randint(100, 300) - 100) / 5000) * camera.y_d
+        # camera.z += ((random.randint(100, 300) - 100) / 3000) * camera.z_d
+        range_val = 5
+        # if camera.x > range_val:
+        #     camera.x_d = -1
+        # elif camera.x < -range_val:
+        #     camera.x_d = 1
+        if camera.y > range_val:
+            camera.y_d = -1
+        elif camera.y < -range_val:
+            camera.y_d = 1
+        # if camera.z > range_val:
+        #     camera.z_d = -1
+        # elif camera.z < -range_val:
+        #     camera.z_d = 1
+
+    sys.modules["__main__"].update = camera_update
+    app.run()
+
+
+if __name__ == '__main__':
+    """
+    平行宇宙的地球们
+    """
+    # sim_show()
+    ursina_show()