3d射线
if (Input.GetMouseButton(0))
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);//从摄像机发出到点击坐标的射线
RaycastHit hitInfo;
if (Physics.Raycast(ray, out hitInfo))
{
Debug.DrawLine(ray.origin, hitInfo.point);//划出射线，只有在scene视图中才能看到
GameObject gameObj = hitInfo.collider.gameObject;
Debug.Log("click object name is " + gameObj.name);
}
}
2d射线
RaycastHit2D hit = Physics2D.Raycast(Camera.main.ScreenToWorldPoint(Input.mousePosition),Vector2.zero);
if(hit.collider != null)
{
Debug.Log("Target Position: " + hit.collider.gameObject.name);
}
