unity3d中最简单物体的旋转移动

void Awake (){  

}       

//初始化函数，在游戏开始时系统自动调用。一般用来创建变量之类的东西。  

  

void Start(){  

}  

//初始化函数，在所有Awake函数运行完之后（一般是这样，但不一定），在所有Update函数前系统自动条用。一般用来给变量赋值。

我们通常书写的脚本，并不会定义[ExecuteInEditMode]这个Attribute，所以Awake和Start都只有在Runtime中才会执行。

 

using UnityEngine;
using System.Collections;

 

public class square1 : MonoBehaviour {
public float m_speed = 1;
protected Transform m_transform;
//是否被拖拽
private bool onDrag=false;
//旋转速度
public float speed=6f;
//阻尼速度
private float tempSpeed;
//水平
private float axisX;
//竖直
private float axisY;
//鼠标移动的距离
private float cXY;

 

// Use this for initialization
void Start () {
//调用
m_transform = this.transform;

}

// Update is called once per frame
void Update () {

 

float movev = 0;
float moveh = 0;
if (Input.GetKey(KeyCode.UpArrow))
{
movev += m_speed * Time.deltaTime;
}

 

if (Input.GetKey(KeyCode.DownArrow))
{
movev -= m_speed * Time.deltaTime;
}

 

if (Input.GetKey(KeyCode.RightArrow))
{
moveh += m_speed * Time.deltaTime;
}

 

if (Input.GetKey(KeyCode.LeftArrow))
{
moveh -= m_speed * Time.deltaTime;
}

 

gameObject.transform.Rotate(new Vector3(axisX,axisY,0)*Rigid(),Space.World);
if (!Input.GetMouseButton(0))
{
onDrag = false;
}
transform.Translate(Vector3.forward*Time.captureFramerate);
this.m_transform.Translate(new Vector3(moveh, 0, movev));
}

//接受鼠标按下
void OnMouseDown()
{
axisX = 0f;
axisY = 0f;
}

 

//鼠标拖拽时的操作
void OnMouseDrag()
{
onDrag = true;
axisX = -Input.GetAxis("Mouse X");
axisY = Input.GetAxis("Mouse Y");
cXY = Mathf.Sqrt(axisX*axisX+axisY*axisY);
if (cXY==0f)
{
cXY = 1f;
}
}
//计算阻尼
float Rigid()
{
if (onDrag)
{
tempSpeed = speed;
}
else
{
if (tempSpeed>0)
{
tempSpeed -= speed * 2 * Time.deltaTime / cXY;
}
else
{
tempSpeed = 0;
}
}
return tempSpeed;
}
//实现鼠标的拖拽移动
IEnumerator OnMouse()
{
var camear = Camera.mainCamera;
if (camear)
{
Vector3 screenPosition = camear.WorldToScreenPoint(transform.position);
Vector3 mscreenPosition = new Vector3(Input.mousePosition.x,Input.mousePosition.y,screenPosition.z);
Vector3 offset = transform.position - camear.ScreenToWorldPoint(mscreenPosition);
print("drag strating:"+transform.name);

 

while (Input.GetMouseButton(0))
{
mscreenPosition = new Vector3(Input.mousePosition.x,Input.mousePosition.y,screenPosition.z);
transform.position = offset + camear.ScreenToWorldPoint(mscreenPosition);
yield return new WaitForEndOfFrame();
}
print("drag compeleted");
}
}
}