Unity 2D角色移动跟物理碰撞

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

public class PlayerControl : MonoBehaviour
{
    public float moveSpeed = 6f;   //移动速度
    private Rigidbody rb;          //2D刚体组件
    public Animator animator;     //动画组件

    void Start()
    {
        rb = GetComponent<Rigidbody>();   //获取刚体组件
    }

    // Update is called once per frame
    void FixedUpdate()
    {
        float horizontalInput = Input.GetAxis("Horizontal");
        float verticalInput = Input.GetAxis("Vertical");

        //没有行走
        if (horizontalInput == 0 && verticalInput == 0)
        {
            animator.SetBool("Run", false);     //站立状态
        }
        else
        {
            animator.SetBool("Run", true);      //奔跑状态
        }

        Vector3 movement = new Vector3(horizontalInput, 0, verticalInput);

        // 使用物理移动
        rb.velocity = movement * moveSpeed;
    }

    /// <summary>
    /// 物理引擎刚体触碰
    /// </summary>
    /// <param name="collision"></param>
    private void OnTriggerEnter(Collider other)
    {
     
    }

}