How to make it when you jump you can only jump if you are touching something

I have a little random script I am messing with and I can't figure out how to make it ONLY jump when it is TOUCHING something.

Here is my code:
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I also made a fun little Look script if you want to try it

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class LookAim : MonoBehaviour
6. {
7.     // Start is called before the first frame update
8.     void Start()
9.     {
10.        
11.     }
12.     [SerializeField] private Transform ObjectToLookAt;
13.    
14.     // Update is called once per frame
15.     void Update()
16.     {
17.         Vector3 DirectionToFace = ObjectToLookAt.localPosition - transform.localPosition;
18.         transform.rotation = Quaternion.LookRotation(DirectionToFace);
19.         Debug.DrawRay(transform.position, DirectionToFace, Color.red);
20.         Quaternion targetRotation = Quaternion.LookRotation(DirectionToFace);
21.  
22.         transform.rotation = Quaternion.Slerp(transform.rotation, targetRotation, Time.deltaTime);
23.     }
24. }

just place in the object you want to look at and BOOM

 

sorry I forgot the code in the first part

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class FireSpirit : MonoBehaviour
6. {
7.     public int jumpPower = 500;
8.     public int speed = 1000;
9.     [SerializeField] ParticleSystem jumpFX;
10.  
11.     Rigidbody rigidBody;
12.     // Start is called before the first frame update
13.     void Start()
14.     {
15.         rigidBody = GetComponent<Rigidbody>();
16.     }
17.  
18.     // Update is called once per frame
19.     void Update()
20.     {  
21.         Jump();
22.         Move();
23.     }
24.  
25.     private void Move()
26.     {
27.         if (Input.GetKey(KeyCode.W))
28.         {
29.             rigidBody.AddRelativeForce(Vector3.forward * speed * Time.deltaTime);
30.         }
31.         if (Input.GetKey(KeyCode.A))
32.         {
33.             rigidBody.AddRelativeForce(Vector3.left * speed * Time.deltaTime);
34.         }
35.         if (Input.GetKey(KeyCode.S))
36.         {
37.             rigidBody.AddRelativeForce(Vector3.back * speed * Time.deltaTime);
38.         }
39.         if (Input.GetKey(KeyCode.D))
40.         {
41.             rigidBody.AddRelativeForce(Vector3.right * speed * Time.deltaTime);
42.         }
43.     }
44.     private void Jump()
45.     {
46.        
47.         {
48.             if (Input.GetKeyDown(KeyCode.Space))
49.             {
50.                 rigidBody.AddRelativeForce(Vector3.up * jumpPower);
51.             }
52.         }
53.     }
54.  
55. }
56.