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标题:
鼠标拖动物体移动(纯代码+注释)
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作者:
烟雨
时间:
2015-9-27 01:34
标题:
鼠标拖动物体移动(纯代码+注释)
鼠标拖动物体移动(纯代码+注释)
// Use this for initialization
bool isOk = false;
void Start () {
this.GetComponent<MeshRenderer>().material.color = Color.red;
}
// Update is called once per frame
void Update()
{
//判断是否按下左键
if (Input.GetMouseButtonDown(0))
{
//发射线
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(ray, out hit))
{
//我要移动的物体名字叫Sphere
if (hit.transform.name == "Sphere")
{
isOk = true;
}
}
}
//抬起左键 isok为假
if(Input.GetMouseButtonUp(0)){
isOk = false;
}
//isok为真,移动物体
if (isOk)
{
//获取需要移动物体的屏幕坐标
Vector3 targer = Camera.main.WorldToScreenPoint(this.transform.position);
//获取鼠标的屏幕坐标,,将物体的屏幕坐标的z轴赋给鼠标坐标
Vector3 mouse = Input.mousePosition;
mouse.z = targer.z;
//将鼠标的屏幕坐标转变成世界坐标
Vector3 mouseScreenPos = Camera.main.ScreenToWorldPoint(mouse);
//移动的物体的位置就等于转换成世界坐标的鼠标位置
this.transform.position = mouseScreenPos;
}
}
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