Unity 他のスクリプトの変数にアクセスすると例外エラーが出る原因が知りたい。

提示コードの//////コメント内部の一行ですが以下のエラーが出ます。なぜ参照出来ないのでしょうか？

例外 [ NullReferenceException: Object reference not set to an instance of an object ]

cs
1using System.Collections;
2using System.Collections.Generic;
3using UnityEngine;
4
5public class Player : MonoBehaviour
6{
7    //方向
8    public Vector3 vec;
9   
10
11    // Start is called before the first frame update
12    void Start()
13    {
14        vec = new Vector3(0, 0, 0);
15    }
16
17    // Update is called once per frame
18    void Update()
19    {
20        Debug.Log(vec);
21    }
22
23}
24

cs
1using System.Collections;
2using System.Collections.Generic;
3using UnityEngine;
4
5public class Control : MonoBehaviour
6{
7    //public GameObject obj;
8    private RaycastHit hit;
9
10
11    private Player player;
12
13
14    // Start is called before the first frame update
15    void Start()
16    {
17        player = GetComponent<Player>();
18        
19    }
20
21
22
23
24    // Update is called once per frame
25    void Update()
26    {
27        RaycastHit hit;
28        int distance = 1000;
29        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
30        Debug.DrawLine(ray.origin, ray.direction * 1000, Color.red);
31
32
33        if (Input.GetMouseButtonDown(0))
34        {
35            if (Physics.Raycast(ray, out hit, distance))
36            {
37///////////////////////////////////////////////////////////////////////////////////////
38                player.vec = hit.point;
39///////////////////////////////////////////////////////////////////////////////////////
40            }
41        }
42
43    }
44
45    //オブジェクトを配置する
46    void PutObject()
47    {
48        RaycastHit hit;
49        int distance = 1000;
50        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
51        Debug.DrawLine(ray.origin, ray.direction * 1000, Color.red);
52
53
54        if (Input.GetMouseButtonDown(0))
55        {
56            if (Physics.Raycast(ray, out hit, distance))
57            {
58                Debug.Log(hit.point);
59
60                //Instantiate(obj, hit.point + new Vector3(0, obj.transform.localScale.y / 2, 0), obj.transform.rotation);
61            }
62        }
63
64    }
65
66
67}
68