made a video for the demonstration
when i first enter the game, i CAN move left or right in the air, but after i hit the ground, once im in the air, x movement is no longer a possibility. I didnt show me going left, but i cant go left in the air either.
line 74 is where the problem should lie. the Debug.Log on line 73 does go off when I press Space, so thats not a problem.
i need help 
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;
using UnityEngine.SceneManagement;
public class Player : MonoBehaviour
{
//Setting up engines, animation, speed, and whatnot
private Rigidbody2D rb;
private Animator anim;
private Collider2D coll;
//FSM
private enum State {idle, running, jumping, falling, hurt}
private State state = State.running;
//Inspector Variables
[SerializeField] private float speed = 500f;
[SerializeField] private float jumpForce = 80f;
[SerializeField] private int crystals = 0;
[SerializeField] private TextMeshProUGUI crystalText;
[SerializeField] private LayerMask ground;
[SerializeField] private float hurtForce = 1000f;
[SerializeField] private AudioSource crystal;
[SerializeField] private AudioSource footstep;
[SerializeField] private int health;
[SerializeField] private Text healthAmount;
private Vector2 velocity;
private void Start()
//Engines used
{
rb = GetComponent<Rigidbody2D>();
anim = GetComponent<Animator>();
coll = GetComponent<Collider2D>();
healthAmount.text = health.ToString();
}
private void Update()
//If hurt
{
if(state != State.hurt)
{
Movement();
}
AnimationState();
anim.SetInteger("state", (int)state);
}
//Movement
private void Movement()
{
float hDirection = Input.GetAxis("Horizontal");
//Left
if (hDirection < 0)
{
rb.AddForce(new Vector2(-speed, 0), ForceMode2D.Impulse);
gameObject.GetComponent<SpriteRenderer>().flipX = true;
}
//Right
else if (hDirection > 0)
{
rb.AddForce(new Vector2(speed, 0), ForceMode2D.Impulse);
gameObject.GetComponent<SpriteRenderer>().flipX = false;
}
//Jumping
if (Input.GetButtonDown("Jump") && coll.IsTouchingLayers(ground))
{
Debug.Log("yo mama");
rb.AddForce(new Vector2(speed, jumpForce), ForceMode2D.Impulse);
state = State.jumping;
}
}
//Entities
private void OnTriggerEnter2D(Collider2D collision)
{
//Collect crystals
if (collision.tag == "collectable")
{
crystal.Play();
Destroy(collision.gameObject);
crystals +=1 ;
crystalText.text = crystals.ToString();
}
if(collision.tag == "powerup")
{
Destroy(collision.gameObject);
jumpForce = 100f;
GetComponent<SpriteRenderer>().color = Color.yellow;
StartCoroutine(ResetPower());
}
}
private void OnCollisionEnter2D(Collision2D other)
{
//Stomping on Enemies
if (other.gameObject.tag == "Enemy")
{
Enemy enemy = other.gameObject.GetComponent<Enemy>();
if (state == State.falling)
{
enemy.JumpedOn();
rb.AddForce(new Vector2(speed, jumpForce), ForceMode2D.Impulse);
}
else
{
state = State.hurt;
HandleHealth();
if (other.gameObject.transform.position.x > transform.position.x)
{
rb.velocity = new Vector2(-hurtForce, rb.velocity.y);
}
else
{
rb.velocity = new Vector2(hurtForce, rb.velocity.y);
}
}
}
}
private void HandleHealth()
{
health -= 1;
healthAmount.text = health.ToString();
if (health <= 0)
{
SceneManager.LoadScene(SceneManager.GetActiveScene().name);
}
}
//Animation
private void AnimationState()
{
//Jumping
if(state == State.jumping)
{
if(rb.velocity.y< .1f)
{
state = State.falling;
}
}
//Falling
else if(state == State.falling)
{
if(coll.IsTouchingLayers(ground))
{
state = State.idle;
}
}
//If below speed when hurt, Idle
else if (state == State.hurt)
{
if(Mathf.Abs(rb.velocity.x) < .1f)
{
state = State.idle;
}
}
//If above speed, Run.
else if(Mathf.Abs(rb.velocity.x)>1f)
{
rb.AddForce(new Vector2(rb.velocity.x,0));
state = State.running;
}
//Nothing else executes, Idle
else
{
state = State.idle;
}
}
private void Footstep()
{
footstep.Play();
}
private IEnumerator ResetPower()
{
yield return new WaitForSeconds(5);
jumpForce = 80f;
GetComponent<SpriteRenderer>().color = Color.white;
}
}