My character only jumps but doesn't move.

Questions & Answers
1

This is my code. It’s my first project on unity and my character won’t move. It did before but now it just won’t

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Player : MonoBehaviour
{
  private bool jumpKeyWasPressed;
  private float horizontalInput;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {

      if (Input.GetKeyDown(KeyCode.Space))
      {
        jumpKeyWasPressed = true;
      }

      horizontalInput = Input.GetAxis("Horizontal");
    }

    private void FixedUpdate() 
    {

      if (jumpKeyWasPressed)
      {
        GetComponent<Rigidbody>().AddForce(Vector3.up * 5, ForceMode.VelocityChange);
        jumpKeyWasPressed = false;
      }
      
      GetComponent<Rigidbody>().velocity = new Vector3(horizontalInput, GetComponent<Rigidbody>().velocity.y, 0);
    }
    
}
2

i never did 2d but on the if statement: if (jumpKeyWasPressed) you need check if its true or false so add a == sighn make sure its 2 cause if its one it probaly wont do anythig. aslo add a true at the end so then its checking if jumpkeywaspressed equals true. aslo i ddont understand the point of the horizontal input thing at the end it just is two getcomponents idk why you would do that since the more times u do that it makes the game more lagy here is my movement :

[SerializeField] Vector3 V3F;
[SerializeField] KeyCode keyPositive;
[SerializeField] KeyCode keyNegative;

 private Rigidbody Rb;

 private void Start()
{
    Rb = GetComponent<Rigidbody>();
}

void FixedUpdate()
{
   if(Input.GetKey(keyPositive))
  Rb.velocity += V3F;
   
   if(Input.GetKey(keyNegative))
   Rb.velocity -= V3F;

  
}