How do I make the enemy lock onto the player's x-axis coordinates?

Questions & Answers
1

Currently I have the enemy fully locked on the player, but I’m trying to make the enemy character move towards the player’s x-axis coordinates while forever moving down the y-axis.

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

public class Enemy : MonoBehaviour
{

public float moveSpeed;
public Transform target;
void Start()
{
    target = GameObject.FindGameObjectWithTag("Player").GetComponent<Transform>();
}
// Update is called once per frame
void Update()
{
    if(Vector2.Distance(transform.position, target.position) > 0.5)
    {
        transform.position = Vector2.MoveTowards(transform.position, target.position, moveSpeed * Time.deltaTime);
    }
}
void OnTriggerEnter2D(Collider2D other)
{
    if (other.gameObject.CompareTag("Destroy"))
    {
        Destroy(gameObject);
    }
}

}

2

One way is that you could separate the two axis movements and pretend the player is always on the same y-axis, like so:

if (Vector2.Distance(transform.position, target.position) > 0.5f) {

    // Chase on x-axis
    Vector2 xTarget = new Vector2(target.position.x, transform.position.y);
    transform.position = Vector2.MoveTowards(transform.position, xTarget, moveSpeed * Time.deltaTime);

    // Move down on y-axis
    transform.position += Vector3.down * moveSpeed * Time.deltaTime;
}

Although the movement speed would not be normalized (it would move faster diagonally). But that is an easy fix.