AI Scripting

Questions & Answers
1

Hi I got this script for AI. I wanted it to be able to follow and shoot at the controller, and turn into a rag-doll after 4-5 shots at it. But something is wrong
Here is the script

class EnemyAI : MonoBehaviour {

public GameObject Player;

private float ViewRange = 40;
private float RayRange = 20;
private int vel = 8;

public RaycastHit LastPos;
public Vector3 RayDirection = Vector3.zero;

public GameObject target;

public Rigidbody Bullet;
public Transform Muzzle;

public void Update()
{
    RayDirection = Player.transform.position - transform.position;

    if (Vector3.Angle(RayDirection, transform.forward) < ViewRange)
    {
        if (Physics.Raycast(transform.position, RayDirection, out LastPos, RayRange))
        {
            if (LastPos.collider.tag == "Player")
            {
                Attack();
            }
        }
    }
}

public void Attack()
{
    transform.LookAt(LastPos.transform.position);
    if (RayDirection.magnitude > 10)
    {
        transform.position = Vector3.MoveTowards(transform.position, LastPos.transform.position, Time.deltaTime * vel);
    }

    else
    {
            Rigidbody b = GameObject.Instantiate(Bullet, Muzzle.position, Muzzle.rotation) as Rigidbody;
            b.AddForce(2000 * b.transform.forward);
    }
}

private void OnCollisionEnter(Collision Hit)
{
    if (Hit.gameObject.tag == "Player")
    {
        PlayerHealth ph = (PlayerHealth)target.GetComponent("PlayerHealth");
        ph.AdjustCurrentHealth(-10);
    }
}
}

I have changed the class to the name of the script, but I can’t find the problem.
Thanks

2

You don’t use the Unity libraries assembly so it doesn’t know the unity-unique variables. Just add

using UnityEngine;
using System.Collections;

to the top of all your C# (you don’t need it in JavaScript) scripts and you should be set.

– David