Python超人-宇宙模拟器

common/system.py

@@ -226,7 +226,7 @@ class System(object):
                     if body1.mass / body2.mass < 1e10:  # 10亿倍的差距
                         self.fast_calc_list[body1].append(body2)
                     else:
-                        # print(f"{body2.name}相对{body1.name}质量太小，加速度可以忽略不计！")
+                        print(f"{body2.name}相对{body1.name}质量太小，加速度可以忽略不计！")
                         continue
 
                 r = body2.position - body1.position

images/planets/licence.txt

+CC0 1.0 Universal (CC0 1.0) 
+Public Domain Dedication
+
+http://creativecommons.org/publicdomain/zero/1.0/
+
+--------------------------------------------------------------
+Moreau Guillaume
\ No newline at end of file

objs/README.md

+### 数字 0-9 上标小数字特殊符号
+```python
+    # ⁰ ¹ ² ³ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹
+```
+# 模型下载
+https://opengameart.org

objs/obj.py

@@ -316,9 +316,9 @@ class Obj(metaclass=ABCMeta):
         return self.__density
 
     def __repr__(self):
-        return '<%s(%s):%s(%s)> m=%.3e(kg), d=%.3e(kg/m³), p=[%.3e,%.3e,%.3e](km), v=%s(km/s)' % \
+        return '<%s(%s):%s(%s)> m=%.3e(kg), d=%.3e(kg/m³), p=[%.3e,%.3e,%.3e](km), v=%s(km/s), s=%.3e' % \
                (self.name, self.__class__.__name__, os.path.basename(self.model), os.path.basename(self.texture), self.mass, self.density,
-                self.position[0], self.position[1], self.position[2], self.velocity)
+                self.position[0], self.position[1], self.position[2], self.velocity, self.size_scale)
 
     def ignore_gravity_with(self, body):
         """

objs/rock.py

@@ -43,15 +43,28 @@ class Rock(Obj):
         super().__init__(**params)
 
 
-def create_rock(no: str = None, **kwargs):
+# 对岩石进行缩放，保证 create_rock 保证创建的岩石大小差异不会过大
+ROCK_SIZE_SCALE_FACTOR = {
+    6: 1e-2,
+    7: 1e-2
+}
+
+
+def create_rock(no: int = None, **kwargs):
     if no is not None:
         kwargs["model"] = f"rock{no}.obj"
         kwargs["texture"] = f"rock{no}.png"
+    if "size_scale" in kwargs:
+        kwargs["size_scale"] = kwargs["size_scale"] * ROCK_SIZE_SCALE_FACTOR.get(no, 1.0)
+    else:
+        kwargs["size_scale"] = ROCK_SIZE_SCALE_FACTOR.get(no, 1.0)
+
     rock = Rock(**kwargs)
+    # print(rock)
     return rock
 
 
 if __name__ == '__main__':
     for i in range(10):
-        rock = create_rock(no=i % 7 + 1, name=f'岩石{i + 1}')
+        rock = create_rock(no=i % 8 + 1, name=f'岩石{i + 1}')
         print(rock)

sim_scenes/science/jupiter_rocks.py

 # -*- coding:utf-8 -*-
-# title           :岩石坠落木星
-# description     :岩石坠落木星
+# title           :彗木相撞模拟
+# description     :天象奇观：彗木相撞模拟
 # author          :Python超人
 # date            :2023-04-09
 # link            :https://gitcode.net/pythoncr/
@@ -11,18 +11,16 @@ from objs import RockSnow, Rock, create_rock
 from common.consts import SECONDS_PER_HOUR, SECONDS_PER_HALF_DAY, SECONDS_PER_DAY
 from sim_scenes.func import ursina_run, camera_look_at, two_bodies_colliding
 from simulators.ursina.entities.body_timer import TimeData
-from simulators.ursina.ursina_config import UrsinaConfig
 from simulators.ursina.ursina_event import UrsinaEvent
 
 if __name__ == '__main__':
     """
-    岩石坠落木星
+    彗木相撞模拟
     """
     import random
 
     # 木星在中心位置
     jupiter = Jupiter(init_position=[0, 0, 0], init_velocity=[0, 0, 0],
-                      # rotation_speed=0,
                       size_scale=1, texture="jupiter_hd.jpg")
 
     bodies = [jupiter]
@@ -33,14 +31,15 @@ if __name__ == '__main__':
         # 随机生成岩石位置和初始速度信息
         pos = [-r * random.randint(120, 200) / 100,
                -r * random.randint(120, 200) / 1000,
-               -r * random.randint(150, 350) / 100]
+               -r * random.randint(100, 300) / 100]
         # 随机速度
         vel = [0, -random.randint(90, 200) / 30, 0]
-        size_scale = random.randint(400, 600)
-        rock = create_rock(no=i % 7 + 1, name=f'岩石{i + 1}', mass=4.4e10, size_scale=size_scale, color=(255, 200, 0),
-                           init_position=pos,
+        size_scale = random.randint(600, 1200)
+        rock = create_rock(no=i % 8 + 1, name=f'岩石{i + 1}', mass=4.4e10,
+                           size_scale=size_scale, color=(255, 200, 0),
+                           init_position=pos, init_velocity=vel,
                            gravity_only_for=[jupiter],
-                           init_velocity=vel)
+                           )
         # 岩石随机旋转量
         rock.rotation = [0, 0, 0]
         rock.rotation[random.randint(0, 2)] = random.randint(90, 200) / 100

simulators/ursina_simulator.py

@@ -97,12 +97,14 @@ class UrsinaSimulator(Simulator):
                 body.planet.enabled = False
                 explosion_file = find_file("images/explosion")
                 explosion_file = os.path.join(explosion_file, "explosion")
-                # volume = body.planet.model.volume
-                volume = pow(body.planet.model.get_bounds().volume, 1 / 3) / 2000
+                # 获取体积数据（开三次方）
+                volume_scale = pow(body.planet.model.get_bounds().volume, 1 / 3)
+                # 根据体积、大小缩放判断爆炸的量
+                scale = 3 * volume_scale * body.size_scale * UrsinaConfig.SCALE_FACTOR
                 explode_ani = Animation(explosion_file,
-                          position=body.planet.position,
-                          scale=volume * 2, fps=6,
-                          loop=False, autoplay=True)
+                                        position=body.planet.position,
+                                        scale=scale, fps=6,
+                                        loop=False, autoplay=True)
 
                 if target is not None:
                     if hasattr(target, "planet"):