点击按钮实例化 - 跟随鼠标把物体放到自己想放的位置 - 纳金网

using unityEngine;
using System.Collections;
public class NewBehaviourScript : MonoBehaviour
{
private Vector3 m_MousePosion; //鼠标位置
private RaycastHit m_hit;//射线碰撞点
private Ray m_ray;//射线
public GameObject m_Pref; //预设
private GameObject go;
private bool m_is;
public Camera m_cam;//相机
// Use this for initialization
void Start()
{
if (!m_Pref)
{
Debug.Log("Add Pref");
}
}
// Update is called once per frame
void Update()
{
m_ray = m_cam.ScreenPointToRay(Input.mousePosition);
if (Physics.Raycast(m_ray, out m_hit))//射线检测
{
if (m_hit.collider.name == "Cub1")
{
m_is = false;
go.transform.position = m_hit.transform.position; //物体摆放位置
}
}
}
void OnGUI()
{
if (GUILayout.Button("click"))//点击鼠标实例化预设物体
{
go = (GameObject)Instantiate(m_Pref, m_Pref.transform.position, Quaternion.identity);
m_is = true;
}
if (m_is)
{
getMove();
}
}
void getMove()//同步物体随鼠标鼠标
{
m_MousePosion = Input.mousePosition;
go.transform.position = m_cam.ScreenToWorldPoint(new Vector3(m_MousePosion.x, m_MousePosion.y, 5));
}
}

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