Player controller error

Mentioned code:

Code (CSharp):

1. public class Movement : MonoBehaviour
2. {
3.     private Rigidbody2D rb2d;
4.     private Collider2D col;
5.     public float speed;
6.     public float jump;
7.     public int LayerMask;
8.  
9.     private void Start()
10.     {
11.         rb2d = GetComponent<Rigidbody2D>();
12.     }
13.     void FixedUpdate()
14.     {
15.  
16.         float moveHorizontal = Input.GetAxis("Horizontal");
17.         float moveVertical = Input.GetAxis("Vertical");
18.         Vector2 movement = new Vector2(moveHorizontal, moveVertical);
19.         rb2d.AddForce(movement * speed);
20.         if (col.IsTouchingLayers(LayerMask = Physics2D.AllLayers) && Input.GetKeyDown(KeyCode.Space))
21.         {
22.             rb2d.AddForce(Vector2.up * Time.deltaTime * jump);
23.         }
24.  
25.     }
26.  
27.  
28. }

It's my first player controler so please help

 

Console reports:
NullReferenceException: Object reference not set to an instance of an object
Movement.FixedUpdate () (at Assets/Movement.cs:24)

 

You forgot to assign the collider2d

 

How can I do it?

 

I think what you should first do is get the exact type (which type of Collider2d is it?) Then set the variable type to that.
If it is a box collider, you'd do:

Code (csharp):

1.  public BoxCollider2D col;

Then, just drag the gameobject into that slot in the inspector. Let me know if that works.

 

My script looks like that now

Code (CSharp):

1.  
2. public class Movement : MonoBehaviour
3. {
4.     private Rigidbody2D rb2d;
5.     public BoxCollider2D col;
6.     public float speed;
7.     public float jump;
8.     public int LayerMask;
9.  
10.     private void Start()
11.     {
12.         rb2d = GetComponent<Rigidbody2D>();
13.         col = GetComponent<BoxCollider2D>();
14.     }
15.     void FixedUpdate()
16.     {
17.  
18.         float moveHorizontal = Input.GetAxis("Horizontal");
19.         float moveVertical = Input.GetAxis("Vertical");
20.         Vector2 movement = new Vector2(moveHorizontal, moveVertical);
21.         rb2d.AddForce(movement * speed);
22.         if (col.IsTouchingLayers(LayerMask = Physics2D.AllLayers) && Input.GetKeyDown(KeyCode.Space))
23.         {
24.             rb2d.AddForce(Vector2.up * Time.deltaTime * jump);
25.         }
26.  
27.     }
28.  
29.  
30. }
31.  

There is no error on console but player dosen't move

 

Does "speed" variable have a value > 0?
Is the mass of your object rather large?
Is "Is Kinematic" unchecked (shouldn't be checked) on your rigidbody?
Are any constraints on the rigidbody checked (ex. freeze x / y / z)?
This script of course is on your player (i.e. dragged on the player)?
Friction?

 

Yes, yes and yes. Player starting on the air and gravity should move him but it doesn't work