Unity3D入门（二）
参考链接：https://github.com/csr632/Priests-and-devils （老师的github仓库）
1、简答并用程序验证
-
游戏对象运动的本质是什么？
游戏对象运动的本质就是使用矩阵变换（平移、旋转、缩放等）来改变游戏对象的空间属性。 -
请用三种方法以上方法，实现物体的抛物线运动。（如，修改Transform属性，使用向量Vector3的方法…）
（1）运用重力来实现物体抛物线运动
效果图：
实现代码：
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class GameObject1 : MonoBehaviour
{
// Start is called before the first frame update
void Start()
{
this.GetComponent().velocity = new Vector3(10, 10, 0);
}
}
(2)Transform.translate函数
public class GameObject2 : MonoBehaviour {
public float vY = 3.0f;
public float aY = 1.0f;
public float vX = 1.0f;
void Start(){
Debug.Log("Start!");
}
void Update(){
Vector3 change = new Vector3(Time.deltaTime * vX, Time.deltaTime * vY, 0);
this.transform.Translate(change);
vY -= aY * Time.deltaTime;
}
}
（3）使用Lerp
public class GameObject3: MonoBehaviour {
public float vY = 3.0f;
public float aY = 1.0f;
public float vX = 1.0f;
void Start(){
Debug.Log("Start!");
}
void Update(){
Vector3 change = new Vector3(Time.deltaTime * vX, Time.deltaTime * vY, 0);
this.transform.postion = Vector3.Lerp(this.transform.position, this.transform.position + move, 1);
vY -= aY * Time.deltaTime;
}
}
- 写一个程序，实现一个完整的太阳系， 其他星球围绕太阳的转速必须不一样，且不在一个法平面上。
首先需要创建太阳系中所有的对象，同时由于题目要求转速不同且不在一个法平面上，所以，这里需要经可能为每个物体创建一个轴，使各物体绕轴旋转。
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Universe : MonoBehaviour
{
GameObject Sun, Moon, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune;
public Vector3 Ax1,
public Vector3 Ax2;
public Vector3 Ax3;
public Vector3 Ax4;
public Vector3 Ax5;
public Vector3 Ax6;
public Vector3 Ax7;
public Vector3 Ax8;
public Vector3 Ax9;
void Start(){
Sun = GameObject.Find("Sun");
Moon = GameObject.Find("Moon");
Mercury = GameObject.Find("Mercury");
Venus = GameObject.Find("Venus");
Earth = GameObject.Find("Earth");
Mars = GameObject.Find("Mars");
Jupiter = GameObject.Find("Jupiter");
Saturn = GameObject.Find("Saturn");
Uranus = GameObject.Find("Uranus");
Neptune = GameObject.Find("Neptune");
}
void Update(){
Sun.Rotate(Vector3.up * 10 * Time.deltaTime);
Moon.RotateAround(Earth.position, Vector3.up, 359 * Time.deltaTime);
Moon.Rotate(Vector3.up * 30 * Time.deltaTime);
Mercury.RotateAround(Sun.position, Ax1, 47 * Time.deltaTime);
Mercury.Rotate(Vector3.up * 50 * Time.deltaTime);
Venus.RotateAround(Sun.position, Ax2, 35 * Time.deltaTime);
Venus.Rotate(Vector3.up * 30 * Time.deltaTime);
Earth.RotateAround(Sun.position, Ax3, 10 * Time.deltaTime);//公转
Earth.Rotate(Vector3.up * 30 * Time.deltaTime);//自转
Mars.RotateAround(Sun.position, Ax4, 24 * Time.deltaTime);
Mars.Rotate(Vector3.up * 30 * Time.deltaTime);
Jupiter.RotateAround(Sun.position, Ax5, 13 * Time.deltaTime);
Jupiter.Rotate(Vector3.up * 30 * Time.deltaTime);
Saturn.RotateAround(Sun.position, Ax6, 9 * Time.deltaTime);
Saturn.Rotate(Vector3.up * 30 * Time.deltaTime);
Uranus.RotateAround(Sun.position, Ax7, 6 * Time.deltaTime);
Uranus.Rotate(Vector3.up * 30 * Time.deltaTime);
Neptune.RotateAround(Sun.position, Ax8, 5 * Time.deltaTime);
Neptune.Rotate(Vector3.up * 30 * Time.deltaTime);
Pluto.RotateAround(Sun.position, Ax9, 3 * Time.deltaTime);
Pluto.Rotate(Vector3.up * 30 * Time.deltaTime);
}
}