# -*- coding:utf-8 -*- # title :ursina天体运行模拟器 # description :ursina天体运行模拟器 # author :Python超人 # date :2023-02-11 # link :https://gitcode.net/pythoncr/ # python_version :3.8 # ============================================================================== # pip install -i http://pypi.douban.com/simple/ --trusted-host=pypi.douban.com ursina from ursina import Ursina, window, Entity, Grid, Mesh, camera, Text, application, color, mouse, Vec2, Vec3, \ load_texture, held_keys from ursina.prefabs.first_person_controller import FirstPersonController from simulators.views.ursina_view import UrsinaView, UrsinaPlayer from simulators.simulator import Simulator from common.system import System import time import datetime from ursina import EditorCamera, PointLight, SpotLight, AmbientLight from scenes.func import ursina_run class WorldGrid(Entity): # Entity # 定义构造方法 def __init__(self): super().__init__() s = 100 grid = Entity(model=Grid(s, s), scale=s * 20, color=color.rgba(255, 255, 255, 20), rotation_x=90, position=(0, -80, 0)) # 坐标轴 # vertsx = ((0, 0, 0), (10, 0, 0)) # Entity(model=Mesh(vertices=vertsx, mode='line', thickness=3), color=color.cyan).set_light_off() # vertsyz = [(0, 0, 0), (0, 10, 0), (0, 0, 0), (0, 0, 10)] # Entity(model=Mesh(vertices=vertsyz, mode='line', thickness=3), color=color.yellow).set_light_off() grid.set_light_off() class UrsinaSimulator(Simulator): def __init__(self, bodies_sys: System): self.app = Ursina() self.ursina_views = [] window.color = color.black super().__init__(bodies_sys, UrsinaView) # ps = ["sun", "mercury", "venus", "earth", "mars", "jupiter", "saturn", "uranus", "neptune"] # cp = [200, 15, 35, 42, 20, 160, 145, 90, 80] # x, y, z = 0, 0, 0 for i, view in enumerate(self.body_views): # pos = tuple(body.position) # ursina_view = UrsinaView(body) view.update() self.ursina_views.append(view) # planets.append(newPlanet) # x += cp[i] * 10 def check_elapsed_time(self): """检查时间间隔是否已过""" now = datetime.datetime.now() elapsed_time = now - self.last_time value = elapsed_time >= self.interval if value: self.last_time = now return value def check_and_evolve(self): if self.check_elapsed_time(): super().evolve(self.evolve_dt) def cosmic_background(self, texture='../textures/cosmic1.jpg'): """ 加入宇宙背景 :param texture: :return: """ # Add skybox from ursina import Sky Sky(texture=texture) # texture = load_texture(texture) # sky_dome = Entity(model='sky_dome', texture=texture, scale=10000, # color=color.white, # position=(0, 0, 0), # rotation=(0, 0, 0)) def run(self, dt, **kwargs): from ursina import EditorCamera, PointLight, SpotLight, AmbientLight, DirectionalLight self.evolve_dt = dt # 设定时间间隔为1秒 self.interval = datetime.timedelta(seconds=0.01) self.last_time = datetime.datetime.now() - datetime.timedelta(seconds=2) if "light" in kwargs: if kwargs["light"]: for v in self.ursina_views: if v.body.is_fixed_star: # v.light = PointLight(parent=v, intensity=10, range=10, color=color.white) # v.light.brightness = 10 lights = [] for i in range(1): # 可以增加多个光源 light = PointLight(parent=v, intensity=10, range=10, color=color.white) light.brightness = 10 lights.append(light) v.lights = lights pass # PointLight(parent=camera, color=color.white, position=(0, 0, 0)) # AmbientLight(color=color.rgba(100, 100, 100, 0.1)) # DirectionalLight # SpotLight if "show_grid" in kwargs: if kwargs["show_grid"]: WorldGrid() if "cosmic_bg" in kwargs: cosmic_bg = kwargs["cosmic_bg"] if cosmic_bg is None: # cosmic_bg = '../textures/cosmic1.png' cosmic_bg = '../textures/cosmic2.jpg' import os if cosmic_bg is not None and os.path.exists(cosmic_bg): self.cosmic_background(cosmic_bg) EditorCamera() pause_handler = Entity(ignore_paused=True) # 按空格键则暂停 def pause_handler_input(key): time_scales = [1, 10, 20, 30] if key == 'space': application.paused = not application.paused # Pause/unpause the game. elif key == 'tab': # application.time_scale 属性控制游戏时间流逝的速度。 # 具体来说，它是一个浮点数，用于调整游戏时间流逝速度的比例，其默认值为 1.0，表示正常速度。 # 当你将它设置为小于 1.0 的值时，游戏时间会变慢，而设置为大于 1.0 的值时，游戏时间则会变快。 for idx, time_scale in enumerate(time_scales): if int(application.time_scale) == time_scale: if idx < len(time_scales) - 1: application.time_scale = time_scales[idx + 1] break else: application.time_scale = 1 print(application.time_scale) pause_handler.input = pause_handler_input # 加载中文字体文件 Text.default_font = 'simsun.ttc' key_info_str = "方位控制[QWEASD + 鼠标] 暂停控制[空格] 摄像机移动速度[Tab]" key_info = Text(text=key_info_str, position=(-0.8, 0.5), origin=(-1, 1), background=True) self.app.run() if __name__ == '__main__': from bodies import Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, Moon from bodies.body import AU from common.consts import SECONDS_PER_WEEK, SECONDS_PER_DAY, SECONDS_PER_HALF_DAY """ 3个太阳、1个地球 """ bodies = [ Sun(name='太阳1', mass=1.5e30, init_position=[849597870.700, 0, 0], init_velocity=[0, 7.0, 0], size_scale=5e1, texture="sun.png"), # 太阳放大 100 倍 Sun(name='太阳2', mass=2e30, init_position=[0, 0, 0], init_velocity=[0, -8.0, 0], size_scale=5e1, texture="sun.png"), # 太阳放大 100 倍 Sun(name='太阳3', mass=2.5e30, init_position=[0, -849597870.700, 0], init_velocity=[18.0, 0, 0], size_scale=5e1, texture="sun.png"), # 太阳放大 100 倍 Earth(name='地球', init_position=[0, -349597870.700, 0], init_velocity=[15.50, 0, 0], size_scale=4e3, texture="earth.png", distance_scale=1), # 地球放大 4000 倍，距离保持不变 ] # bodies = [ # # Sun(name='太阳2', mass=1.5e30, init_position=[0, 0, 0], init_velocity=[0, -8.0, 0], # size_scale=5e1, texture="sun.png"), # 太阳放大 100 倍 # Sun(name='太阳2', mass=1.5e30, init_position=[849597870.700, 0, 0], init_velocity=[0, -8.0, 0], # size_scale=5e1, texture="sun.png"), # 太阳放大 100 倍 # Sun(name='太阳2', mass=1.5e30, init_position=[0, -849597870.700, 0], init_velocity=[0, -8.0, 0], # size_scale=5e1, texture="sun.png"), # 太阳放大 100 倍 # Earth(name='地球', mass=5.97237e24, init_position=[0, -349597870.700, 0], init_velocity=[15.50, 0, 0], # size_scale=4e3, texture="earth.png", distance_scale=1), # 地球放大 4000 倍，距离保持不变 # ] bodies = [ Sun(size_scale=0.8e2), # 太阳放大 80 倍 Mercury(size_scale=4e3, distance_scale=1.3), # 水星放大 4000 倍，距离放大 1.3 倍 Venus(size_scale=4e3, distance_scale=1.3), # 金星放大 4000 倍，距离放大 1.3 倍 Earth(init_position=[1.12 * AU, 0, 0], init_velocity=[0, 29.79, 0], size_scale=4e3, distance_scale=1.3), # 地球放大 4000 倍，距离放大 1.3 倍 Moon(init_position=[363104 + 1.12 * AU, 0, 0], init_velocity=[-9, 29.79 + 1.023, 0], size_scale=4e3, distance_scale=1.3), Mars(size_scale=4e3, distance_scale=1.3), # 火星放大 4000 倍，距离放大 1.3 倍 Jupiter(size_scale=0.68e3, distance_scale=0.65), # 木星放大 680 倍，距离缩小到真实距离的 0.65 Saturn(size_scale=0.68e3, distance_scale=0.52), # 土星放大 680 倍，距离缩小到真实距离的 0.52 Uranus(size_scale=0.8e3, distance_scale=0.36), # 天王星放大 800 倍，距离缩小到真实距离的 0.36 Neptune(size_scale=1e3, distance_scale=0.27), # 海王星放大 1000 倍，距离缩小到真实距离的 0.27 Pluto(size_scale=10e3, distance_scale=0.23), # 冥王星放大 10000 倍，距离缩小到真实距离的 0.23(从太阳系的行星中排除) ] ursina_run(bodies, SECONDS_PER_DAY, position=(AU * 2, AU * 2, AU * 3), show_grid=True)