Python超人-宇宙模拟器

objs/rock.py

@@ -45,7 +45,7 @@ class Rock(Obj):
 
 # 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,
+    6: 0.5,
     7: 1e-2
 }
 

sim_scenes/README.md

@@ -24,3 +24,6 @@
 ### 三体的场景模拟
 **sim_scenes/tri_bodies**
 
+### 天文奇观模拟
+**sim_scenes/wonders**
+

sim_scenes/solar_system/earth_moon.py

@@ -10,6 +10,7 @@ from bodies import Sun, Earth, Moon
 from common.consts import SECONDS_PER_HOUR, SECONDS_PER_HALF_DAY, SECONDS_PER_DAY, SECONDS_PER_WEEK, SECONDS_PER_MONTH
 from sim_scenes.func import ursina_run, camera_look_at
 from bodies.body import AU
+from simulators.ursina.entities.entity_utils import create_directional_light
 from simulators.ursina.ursina_event import UrsinaEvent
 
 if __name__ == '__main__':
@@ -28,9 +29,16 @@ if __name__ == '__main__':
 
 
     def on_ready():
+        # 运行前触发
         # 运行开始前，将摄像机指向地球
         earth = bodies[0]
+        moon = bodies[1]
+        # 摄像机看向地球
         camera_look_at(earth)
+        # 创建太阳光
+        shadows_shader = create_directional_light(position=(200, 0, -300), target=earth,shadows=True)
+        earth.planet.shadows = shadows_shader
+        moon.planet.shadows = shadows_shader
 
 
     UrsinaEvent.on_ready_subscription(on_ready)
@@ -38,7 +46,7 @@ if __name__ == '__main__':
     # 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_MONTH,
+    ursina_run(bodies, SECONDS_PER_DAY,
                position=(-300000, 1500000, -1000),
                show_timer=True,
                show_trail=True)

sim_scenes/science/comets_jupiter.py → sim_scenes/wonders/comets_jupiter.py

@@ -57,7 +57,7 @@ if __name__ == '__main__':
     comets = []
     r = jupiter.raduis
 
-    for i in range(30):
+    for i in range(20):
         # 随机生成石头
         comet = create_comet(i, gravity_only_for=jupiter)
         bodies.append(comet)

sim_scenes/solar_system/transit_of_venus_mercury.py → sim_scenes/wonders/transit_of_venus_mercury.py

 # -*- coding:utf-8 -*-
 # title           :水星、金星凌日
-# description     :水星、金星凌日
+# description     :天象奇观：水星、金星凌日
 # author          :Python超人
 # date            :2023-02-11
 # link            :https://gitcode.net/pythoncr/

simulators/ursina/entities/entity_utils.py

@@ -176,6 +176,10 @@ def create_directional_light(position, target=None, shadows=False, light_color=N
     else:
         light_color = color.rgba(light_color[0] / 255, light_color[1] / 255, light_color[2] / 255, 1)
     light = DirectionalLight(position=position, intensity=10, range=10, color=light_color)
+
+    if shadows:
+        light.shadows = lit_with_shadows_shader
+
     if target is not None:
         if hasattr(target, "planet"):
             if hasattr(target.planet, "main_entity"):
@@ -185,6 +189,11 @@ def create_directional_light(position, target=None, shadows=False, light_color=N
         else:
             light.look_at(target)
 
+    if shadows:
+        return lit_with_shadows_shader
+    else:
+        return None
+
 
 def create_trail_line(parent, pos):
     """

simulators/ursina_simulator.py

@@ -101,6 +101,7 @@ class UrsinaSimulator(Simulator):
                 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
+                print(scale, body)
                 explode_ani = Animation(explosion_file,
                                         position=body.planet.position,
                                         scale=scale, fps=6,