Unity 2D A* Pathfinding Move X axis ONLY

Question

I am new to A* Pathfinding i want to get the enemy ai to move only in x axis. How can i do that? this is what i got right now:

using UnityEngine;
using System.Collections;
using Pathfinding;

public class SimpleZombieAI : MonoBehaviour {

    public Vector2 targetPosition;

    public void Start (){
        Seeker seeker = GetComponent<Seeker> ();

        seeker.StartPath (transform.position, targetPosition, OnPathComplete);

    }

    public void OnPathComplete (Path p) {

        Debug.Log ("Yay, we got a path back. Did it have an error? "+p.error);

    }
}

but it goes in x and y and i want to make it go ONLY x. I hope someone can help me because i dont know where to post about this question.

Answer 1

I'm assuming your Seeker.StartPath function takes Vector parameters, so just passing the x values won't work. While I don't think you would really need to use pathfinding for a one-dimensional path, if that's what you want to use, here's a way that you might be able to achieve that.

public void Start (){
    Seeker seeker = GetComponent<Seeker> ();

    float myY = transform.position.y;
    seeker.StartPath (transform.position, new Vector2(targetPosition.x,myY), OnPathComplete);

}

This will have your enemies move along their constant y-value line, while chasing from their own x-coordinate to the player's x-coordinate.