Unity3d学习笔记(2)--一个太阳系的实现

来源：互联网发布：如何查询淘宝商品类目编辑：程序博客网时间：2024/05/21 10:05

这是实现一个简单的太阳系，包括太阳和八大行星和月亮。

这个程序采用MVC结构

总共有6个cs文件：

SSDirector.cs:控制场景的切换，指明哪个是当前场景

FristController.cs：控制第一个场景的资源加载和配置

roundsun.cs：挂载在太阳上的组件，使其它行星绕太阳转，月亮绕地球转和各天体的自转

UserGUI.cs

IUserAction.cs

ISceneController.cs

因为时间问题，上面有些文件的功能还没有实现，但因为要满足MVC结构的问题，便于以后的扩展和修改，就把它们

加进了项目中。

FristController.cs

这个文件主要是用来加载太阳系和以及为roundsun组件传递参数。

public void LoadResources() {        GameObject solar_system = Instantiate<GameObject>(                            Resources.Load<GameObject>("prefabs/sun_shadow"),                            Vector3.zero, Quaternion.identity);        GameObject sun = Instantiate<GameObject>(                            Resources.Load<GameObject>("prefabs/sun"),                            Vector3.zero, Quaternion.identity);        solar_system.name = "sun_shadow";        sun.name = "sun";        GameObject[] body = new GameObject[body_num];        for (int i = 0; i < body_num; i++)        {            body[i] = GameObject.Find(body_name[i]);        }        Debug.Log("load solar_system ...\n");        roundsun com_sun = solar_system.GetComponent("roundsun") as roundsun;        com_sun.sun_shadow = body[0].transform;        com_sun.mercury = body[1].transform;        com_sun.venus = body[2].transform;        com_sun.earth_shadow = body[3].transform;        com_sun.moon = body[4].transform;        com_sun.mars = body[5].transform;        com_sun.jupiter = body[6].transform;        com_sun.saturn = body[7].transform;        com_sun.uranus = body[8].transform;        com_sun.neptune = body[9].transform;        com_sun.sun = body[10].transform;        com_sun.earth = body[11].transform;}

roundsun.cs

设置各天体的初始位置：

void Start () {        sun.position = Vector3.zero;        sun_shadow.position = sun.position;        mercury.position = new Vector3(0.7f, 0, 0);        venus.position = new Vector3(1.2f, 0, 0);        earth.position = new Vector3(2.2f, 0, 0);        earth_shadow.position = earth.position;        moon.position = new Vector3(2.7f, 0, 0);        mars.position = new Vector3(3.3f, 0, 0);        jupiter.position = new Vector3(4.5f, 0, 0);        saturn.position = new Vector3(6.0f, 0, 0);        uranus.position = new Vector3(7.0f, 0, 0);        neptune.position = new Vector3(8.0f, 0, 0);            }

设置各天体的公转和自转：

void Update () {        mercury.RotateAround(sun_shadow.position, new Vector3(1, 7f, 0), 240 * Time.deltaTime);        venus.RotateAround(sun_shadow.position, new Vector3(1, 12f, 0), 70 * Time.deltaTime);        earth.RotateAround(sun_shadow.position, Vector3.up, 60* Time.deltaTime);        earth_shadow.position = earth.position;        mars.RotateAround(sun_shadow.position, new Vector3(1, 16f,0), 30 * Time.deltaTime);        jupiter.RotateAround(sun_shadow.position, new Vector3(1, 18f, 0), 20 * Time.deltaTime);        saturn.RotateAround(sun_shadow.position, new Vector3(1, 15f, 0), 15 * Time.deltaTime);        uranus.RotateAround(sun_shadow.position, new Vector3(1, 20f, 0), 10 * Time.deltaTime);        neptune.RotateAround(sun_shadow.position, new Vector3(1, 17f, 0), 5 * Time.deltaTime);        moon.transform.RotateAround(earth_shadow.position, Vector3.up, 359 * Time.deltaTime);        sun.Rotate(Vector3.up * 10 * Time.deltaTime);        mercury.Rotate(Vector3.up * 10 * Time.deltaTime);        venus.Rotate(Vector3.down * 5 * Time.deltaTime);        earth.Rotate(Vector3.up * 30 * Time.deltaTime);        mars.Rotate(Vector3.up * 30 * Time.deltaTime);        jupiter.Rotate(Vector3.up * 65 * Time.deltaTime);        saturn.Rotate(Vector3.up * 67 * Time.deltaTime);        uranus.Rotate(Vector3.up * 50 * Time.deltaTime);        neptune.Rotate(Vector3.up * 45 * Time.deltaTime);        moon.Rotate(Vector3.up * 15 * Time.deltaTime);}

写博客时发现天体的自转是不是应该挂在各天体上比较符合

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