How do I make enemy switch the other way when bouncing off collider?

Unity Engine
1

I am trying to make a top down game where the enemy continuously moves up and down. This is my code so far.

using UnityEngine;
using System.Collections;

public class EnemyRandomMovement : MonoBehaviour {

// Use this for initialization
void Start () {
}

// Update is called once per frame
void Update () {
transform.position = new Vector3 (transform.position.x, transform.position.y - 0.1f, 0f);
}
}

I’m actually unsure what to do now. (I’m a beginner)
I just need the enemy to bounce off the background box collider and switch directions.

2

Please use the “Insert code” option when you post code on the forums. Or use code tags. There is a pinned thread on this, for more details :slight_smile:

As for your situation, I’m pretty sure that you could put a kinematic rigidbody on your enemy (or the backgroundbox) along with a trigger collider and use the OnTriggerEnter callback to switch the enemy’s direction.

This is a tutorial on colliders as triggers: 3D Physics - Unity Learn