Follow Enemy AIHow to make enemies follow a player object in Unity

Author Waldo
Published July 15, 2019

In this video I show you how to create enemy AI that follows your player around the screen.

Video Walkthrough

  • 0:12 - Downloading and importing assets from the asset store
  • 0:30 - Animating and creating our characters
  • 1:10 - Creating a C# script for our Follow Enemy AI script
  • 1:40 - Calculating the direction our player is in real time
  • 2:20 - Adding a RigidBody2D to rotate our enemy to face our player
  • 3:20 - Calculating the rotation in degrees to rotate our enemy
  • 4:20 - Moving our enemy to chase the player object
  • 6:00 - Final Product
  • 6:15 - Tutorial Challenge

Source Code for Enemy.cs

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

public class Enemy : MonoBehaviour{
    public Transform player;
    public float moveSpeed = 5f;
    private Rigidbody2D rb;
    private Vector2 movement;

    // Start is called before the first frame update
    void Start(){
        rb = this.GetComponent<Rigidbody2D>();

    // Update is called once per frame
    void Update(){
        Vector3 direction = player.position - transform.position;
        float angle = Mathf.Atan2(direction.y, direction.x) * Mathf.Rad2Deg;
        rb.rotation = angle;
        movement = direction;
    private void FixedUpdate() {
    void moveCharacter(Vector2 direction){
        rb.MovePosition((Vector2)transform.position + (direction * moveSpeed * Time.deltaTime));

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