unity_摄像机跟随
//挂载到摄像机上，当然可以不只是摄像机跟随
public class CameraFollow : MonoBehaviour
{
public Transform target; //目标物体
public Vector3 offset; //偏移
public float rotateSpeed=10f; //摄像机与target之间角度转换快慢
public float moveSpeed= 10f; //摄像机与target之间距离转换快慢
//通过使摄像机始终面向target
public void LookAtTarget()
{
Vector3 vRot = target.position - this.transform.position;
Quaternion qRot = Quaternion.LookRotation(vRot , Vector3.up);
transform.rotation = Quaternion.Lerp(transform.rotation, qRot , rotateSpeed* Time.deltaTime);
}
//通过插值运算使摄像机朝target运动并保持距离
public void MoveToTarget()
{
Vector3 pos = target.position + target.forward * offset.z + target.right * offset.x + target.up * offset.y;
transform.position = Vector3.Lerp(transform.position, pos, moveSpeed* Time.deltaTime);
}
//固定帧率刷新
public void FixedUpdate()
{
LookAtTarget();
MoveToTarget();
}
}