How do I make a Com Player?

Unity Engine
1

So I’m expanding on the survival shooter tutorial by making it so when I hit a key, the player switches to an AI player. I basically know what the player should do. When they’re at a distance from an enemy, they shoot the enemy. When they’re too close to the enemy, they back away and keep shooting. When a power up spawns, the player moves towards it. I have the script for player movement and player shooting, but sorry, I’m just not sure how to type a player AI script. I just don’t know how to translate this plan into code. If someone could steer me the right way, I’d very much appreciate it.

Here’s my player movement script

public class PlayerMovement : MonoBehaviour
{
    public float speed = 6f;

    Vector3 movement;
    Animator anim;
    Rigidbody playerRigidbody;
    int floorMask;
    float camRayLength = 100f;

    void Awake()
    {
        floorMask = LayerMask.GetMask("Floor");
        anim = GetComponent<Animator>();
        playerRigidbody = GetComponent<Rigidbody>();
    }

    void FixedUpdate()
    {
        float h = Input.GetAxisRaw("Horizontal");
        float v = Input.GetAxisRaw("Vertical");

        Move(h, v);
        Turning();
        Animating(h, v);
    }

    void Move(float h, float v)
    {
        movement.Set(h, 0, v);
        movement = movement.normalized * speed * Time.deltaTime;
        playerRigidbody.MovePosition(transform.position + movement);
    }

    void Turning()
    {
        Ray CamRay = Camera.main.ScreenPointToRay(Input.mousePosition);
        RaycastHit floorHit;
        if(Physics.Raycast(CamRay, out floorHit,camRayLength, floorMask))
        {
            Vector3 playerToMouse = floorHit.point - transform.position;
            playerToMouse.y = 0f;

            Quaternion newRotation = Quaternion.LookRotation(playerToMouse);
            playerRigidbody.MoveRotation(newRotation);
        }
    }

    void Animating(float h, float v)
    {
        bool walking = h != 0f || v != 0f;
        anim.SetBool("IsWalking", walking);
    }
}

and here’s my player shooting script

public class PlayerShooting : MonoBehaviour
{
    public int damagePerShot = 20;
    public static float timeBetweenBullets = 0.15f;
    public float range = 100f;


    float timer;
    Ray shootRay = new Ray();
    RaycastHit shootHit;
    int shootableMask;
    ParticleSystem gunParticles;
    LineRenderer gunLine;
    AudioSource gunAudio;
    Light gunLight;
    float effectsDisplayTime = 0.2f;


    void Awake ()
    {
        shootableMask = LayerMask.GetMask ("Shootable");
        gunParticles = GetComponent<ParticleSystem> ();
        gunLine = GetComponent <LineRenderer> ();
        gunAudio = GetComponent<AudioSource> ();
        gunLight = GetComponent<Light> ();
    }


    void Update ()
    {
        timer += Time.deltaTime;

        if(Input.GetButton ("Fire1") && timer >= timeBetweenBullets && Time.timeScale != 0)
        {
            Shoot ();
        }

        if(timer >= timeBetweenBullets * effectsDisplayTime)
        {
            DisableEffects ();
        }
    }


    public void DisableEffects ()
    {
        gunLine.enabled = false;
        gunLight.enabled = false;
    }


    void Shoot ()
    {
        timer = 0f;

        gunAudio.Play ();

        gunLight.enabled = true;

        gunParticles.Stop ();
        gunParticles.Play ();

        gunLine.enabled = true;
        gunLine.SetPosition (0, transform.position);

        shootRay.origin = transform.position;
        shootRay.direction = transform.forward;

        if(Physics.Raycast (shootRay, out shootHit, range, shootableMask))
        {
            EnemyHealth enemyHealth = shootHit.collider.GetComponent <EnemyHealth> ();
            if(enemyHealth != null)
            {
                enemyHealth.TakeDamage (damagePerShot, shootHit.point);
            }
            gunLine.SetPosition (1, shootHit.point);
        }
        else
        {
            gunLine.SetPosition (1, shootRay.origin + shootRay.direction * range);
        }
    }
}
2

Watch this training session on pluggable AI. It’s going to cover basically everything you want to do.