using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Move : MonoBehaviour
{


    Vector3 targetPos;
    float moveSpeed = 2;
    Vector3 velotity = Vector3.zero;
    float smoothTime = .3f;

    Rigidbody rigidbody;
    void Start()
    {
        // targetPos = transform.position;
        targetPos = new Vector3(10, 10, 10);
        rigidbody = gameObject.GetComponent<Rigidbody>();
    }
    void Update()
    {
        /// ****************!Tranform !***start**********/
        ///* !1.transform.Translate  物体朝某个方向移动
        // transform.Translate(Vector3.right * moveSpeed * Time.deltaTime);
        /// 键盘控制物体上下左右移动
        /* float h = Input.GetAxis("Horizontal");
         float v = Input.GetAxis("Vertical");
         transform.Translate(new Vector3(h, 0, v) * moveSpeed * Time.deltaTime);*/

        ///* !2.Vector3.MoveTowards  物体朝着某个点移动
        // transform.position = Vector3.MoveTowards(transform.position, targetPos, moveSpeed * Time.deltaTime);
        /// 物体移动到鼠标点击位置
        /* if (Input.GetMouseButtonUp(0))
         {
         //鼠标位置转换为世界坐标
             Vector3 selfPos = Camera.main.WorldToScreenPoint(transform.position);
             Vector3 mousePos = new Vector3(Input.mousePosition.x, Input.mousePosition.y, selfPos.z);
             targetPos = Camera.main.ScreenToWorldPoint(mousePos);
         }
         transform.position = Vector3.MoveTowards(transform.position, targetPos, moveSpeed * Time.deltaTime);*/

        ///* !3.Vector3.SmoothDamp 通常用于平滑跟随相机
        // transform.position = Vector3.SmoothDamp(transform.position, targetPos+相机初始位置, ref velotity, smoothTime);

        ///* !4.直接赋值跟随时间逐渐移动
        //transform.position += Vector3.right * moveSpeed * Time.deltaTime;
        /// ****************!Tranform !***end**********/



    }
    private void FixedUpdate()
    {
        /// ****************!Rigidbody !***start**********/
        ///物体添加 Rigidbody组件 避免受重力影响 属性Use Gravity取消勾选

        ///* !1.rigidbody.MovePosition  朝某方向移动
        // rigidbody.MovePosition(targetPos * moveSpeed * Time.fixedDeltaTime);

        /// 键盘控制物体上下左右移动
        float h = Input.GetAxis("Horizontal");
        float v = Input.GetAxis("Vertical");
        //rigidbody.MovePosition(transform.position + new Vector3(h, 0, v) * moveSpeed * Time.fixedDeltaTime);

        ///* !2.rigidbody.velocity 
        //rigidbody.velocity = moveSpeed * new Vector3(h, 0, v);

        ///* !3.rigidbody.AddForce 
        // 朝某方向发力
        //rigidbody.AddForce(transform.right, ForceMode.Impulse);
        //朝某方向匀速移动
        // rigidbody.AddForce(Vector3.right * moveSpeed);

        /// ****************!Rigidbody !***end**********/
    }

}