DamageNumber.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class DamageNumber : MonoBehaviour
{

    public float damageSpeed;
    public string damagePoints;

    public Text damageText;
    public TMP_Text damageTextPro;

    public Vector2 direction = new Vector2(1, 0);
    public float timeToChangeDirection = 1;
    public float timeToChangeDirectionCounter = 1;

    // Update is called once per frame
    void Update()
    {
        timeToChangeDirectionCounter -= Time.deltaTime;
        if (timeToChangeDirectionCounter < timeToChangeDirection / 2)
        {
            direction *= -1;
            timeToChangeDirectionCounter += timeToChangeDirection;
        }

        if (damageText != null)
        {
            damageText.text = damagePoints;
        }
        if(damageTextPro != null)
        {
            damageTextPro.text = "" + damagePoints;
        }

        //this.transform.position = new Vector3(this.transform.position.x, this.transform.position.y + damageSpeed * Time.deltaTime,
        //                                       this.transform.position.z);
        this.transform.position = new Vector3(
           this.transform.position.x + direction.x * damageSpeed * Time.deltaTime,
           this.transform.position.y + damageSpeed * Time.deltaTime,
           this.transform.position.z
       );
        this.transform.localScale = this.transform.localScale * (1 - Time.deltaTime / 1.75f);
     
        
    }
}