Help with AI c#

Unity Engine
1

Ok so I am fairly new to unity/c# and I was trying to follow a youtube tutorial and I keep getting errors that i have been trying to fix for the past few hours.

using UnityEngine;
using System.Collections;

public class EnemyAI05 : MonoBehaviour {

public float moveForce = 0f;
private Rigidbody rbody;
public Vector3 moveDir;
public LayerMask whatIsWall;
public float maxDistFromWall = 0f;

// Use this for initialization
void Start () {

rbody = GetComponent();
moveDir = ChooseDirection (); <— ERROR HERE
Transform.rotation = Quaternion.LookRotation(moveDir);

}

// Update is called once per frame
void Update () {

Rbody.velocity = moveDir * MoveForce;

if(Physics.Raycast (Transform.position, Transform.forward, maxDistFromWall, whatIsWall))
{

moveDir = chooseDirection();
Transform.rotation = Quaternion.LookRotation(moveDir);
}

Vector3 ChooseDirection() AND another error in the first parentheses.
{

System.Random Ran = new System.Random();
int i = Ran.Next(0, 3);
Vector3 temp = new Vector3 ();

if (i == 0) {

temp = Transform.forward;
}
else if (i == 1)
{

temp = -Transform.forward;

}
else if (i == 2)
{

temp = -Transform.right;

}
else if (i == 3)
{

temp = -Transform.right;
}
return temp

Sorry if there is another way to post my code. it is my first time using the forums

2847547–207968–EnemyAI05.cs (1.07 KB)

2

hello, you didn’t posted the error. So we have no idea what to look for.

I found two missing }

using UnityEngine;
using System.Collections;

public class EnemyAI05 : MonoBehaviour {

    public float moveForce = 0f;
    private Rigidbody rbody;
    public Vector3 moveDir;
    public LayerMask whatIsWall;
    public float maxDistFromWall = 0f;




    // Use this for initialization
    void Start () {
   
        rbody = GetComponent<Rigidbody>();
        moveDir = ChooseDirection ();
        Transform.rotation = Quaternion.LookRotation(moveDir);
    }
   
    // Update is called once per frame
    void Update () {
   
        Rbody.velocity = moveDir * MoveForce;

        if(Physics.Raycast (Transform.position, Transform.forward, maxDistFromWall, whatIsWall))
        {

            moveDir = chooseDirection();
            Transform.rotation = Quaternion.LookRotation(moveDir);
        }
    }  // <=== missing


        Vector3 ChooseDirection()
    {

    System.Random Ran = new System.Random();
    int i = Ran.Next(0, 3);
    Vector3 temp = new Vector3 ();
   
    if (i == 0) {
   
            temp = Transform.forward;
        }
        else if (i == 1)
        {
   
            temp = -Transform.forward;

    }
        else if (i == 2)
        {
           
            temp = -Transform.right;

    }
        else if (i == 3)
        {
           
            temp = -Transform.right;
        }
        return temp
} // <=== missing
3

https://forum.unity3d.com/threads/using-code-tags-properly.143875/

stickies are a wonderful thing… so unloved :frowning:

4

I see more, C# is case sensitive.
Rbody.velocity= moveDir * MoveForce;
rbody and moveForce

Vector3 ChooseDirection()
and moveDir = chooseDirection();

; was missing on the return temp line

temp = -Transform.right; needs to be temp = -transform.right;
Transform is a class, transform is a Vector3

updated code:

using UnityEngine;
using System.Collections;

public class EnemyAI05 : MonoBehaviour {

    public float moveForce = 0f;
    private Rigidbody rbody;
    public Vector3 moveDir;
    public LayerMask whatIsWall;
    public float maxDistFromWall = 0f;




    // Use this for initialization
    void Start () {

        rbody = GetComponent<Rigidbody>();
        moveDir = ChooseDirection ();
        transform.rotation = Quaternion.LookRotation(moveDir);



    }

    // Update is called once per frame
    void Update () {

        rbody.velocity = moveDir * moveForce;

        if(Physics.Raycast (transform.position, transform.forward, maxDistFromWall, whatIsWall))
        {

            moveDir = ChooseDirection();
            transform.rotation = Quaternion.LookRotation(moveDir);
        }
    }


    Vector3 ChooseDirection()
    {

        System.Random Ran = new System.Random();
        int i = Ran.Next(0, 3);
        Vector3 temp = new Vector3 ();

        if (i == 0) {

            temp = transform.forward;
        }
        else if (i == 1)
        {

            temp = -transform.forward;

        }
        else if (i == 2)
        {

            temp = -transform.right;

        }
        else if (i == 3)
        {

            temp = -transform.right;
        }
        return temp;
    }

}
5

Alright this fixed all of the errors thanks. And i will make sure to use stickies from now on.