AI WORLD RPG Game Unity

using UnityEngine;
using System.Collections;

public class PlayerController : MonoBehaviour
{
public float moveSpeed = 5f;
public Rigidbody2D rb;
public Animator animator;
private Vector2 movement;

void Update()
{
    // Get movement input
    movement.x = Input.GetAxisRaw("Horizontal");
    movement.y = Input.GetAxisRaw("Vertical");

    // Set animation parameters
    animator.SetFloat("Horizontal", movement.x);
    animator.SetFloat("Vertical", movement.y);
    animator.SetFloat("Speed", movement.sqrMagnitude);
}

void FixedUpdate()
{
    // Move player
    rb.MovePosition(rb.position + movement * moveSpeed * Time.fixedDeltaTime);
}

}

public class EnemyAI : MonoBehaviour
{
public Transform target;
public float speed = 3f;
public float attackRange = 1.5f;
public int enemyHealth = 100;

void Update()
{
    if (Vector2.Distance(transform.position, target.position) > attackRange)
    {
        transform.position = Vector2.MoveTowards(transform.position, target.position, speed * Time.deltaTime);
    }
}

public void TakeDamage(int damage)
{
    enemyHealth -= damage;
    if (enemyHealth <= 0)
    {
        Destroy(gameObject);
    }
}

}

public class CombatSystem : MonoBehaviour
{
public int playerDamage = 25;
public Transform attackPoint;
public float attackRange = 1f;
public LayerMask enemyLayers;

void Update()
{
    if (Input.GetKeyDown(KeyCode.Space))
    {
        Attack();
    }
}

void Attack()
{
    Collider2D[] hitEnemies = Physics2D.OverlapCircleAll(attackPoint.position, attackRange, enemyLayers);
    foreach (Collider2D enemy in hitEnemies)
    {
        enemy.GetComponent<EnemyAI>().TakeDamage(playerDamage);
    }
}

}

public class HealthSystem : MonoBehaviour
{
public int maxHealth = 100;
private int currentHealth;

void Start()
{
    currentHealth = maxHealth;
}

public void TakeDamage(int damage)
{
    currentHealth -= damage;
    if (currentHealth <= 0)
    {
        Debug.Log("Player Died!");
    }
}

}