Okay, I'll do my best! Here's a class for a Jump action in a character using ray tracing:
```cs
using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class Jump: MonoBehaviour
{
    public float jumpHeight = 5f;
    public float groundDistance = 0.1f; // how far the ray will check for the ground
    public LayerMask groundLayer; // which layers are the ground. Set this in unity

    private Rigidbody2D rb;

    void Start() // init
    {
        rb = GetComponent<Rigidbody2D>();
    }

    void Update()
    {
        if (IsGrounded() && Input.GetKeyDown(KeyCode.Space)) // if character is on the ground and jumps
        {
            rb.velocity = new Vector2(rb.velocity.x, jumpHeight); // make them jump!
        }
    }

    bool IsGrounded()
    {
        RaycastHit2D raycastHit = Physics2D.Raycast(transform.position, Vector2.down, groundDistance, groundLayer); // create raycast pointing to the ground
        return raycastHit.collider != null; // if the ray hit ground, user is on ground
    }
}
```
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