Question by xDark420 · Jul 29, 2021 at 07:21 PM · ui unity 2d rigidbody2d ammo

[HELP] 2D Ammo UI error wont count down shooting count and wont pick up and change ammo count

NullReferenceException: Object reference not set to an instance of an object PlayerController.UpdateAmmoUI () (at Assets/Scripts/PlayerController.cs:132) PlayerController.Update () (at Assets/Scripts/PlayerController.cs:97) error in Unity console.

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

public class PlayerController : MonoBehaviour { public static PlayerController instance;

 public Rigidbody2D theRB;

 public float moveSpeed = 5f;

 private Vector2 moveInput;
 private Vector2 mouseInput;

 public float mouseSensitivity = 1f;

 public Camera viewCam;

 public GameObject bulletInpact;
 public int currentAmmo;

 public Animator gunAnim;

 public int currentHeath;
 public int maxHealth = 100;
 public GameObject deadScreen;
 private bool hasDied;

 public Text healthText, ammoText;

 private void Awake()
 {
     instance = this;
 }


 // Start is called before the first frame update
 void Start()
 {
     currentHeath = maxHealth;
     healthText.text = currentHeath.ToString() + "%";

     ammoText.text = currentAmmo.ToString();
 }

 // Update is called once per frame
 void Update()
 {
     if (!hasDied)
     {
     }

     //player movement
     moveInput = new Vector2(Input.GetAxis("Horizontal"), Input.GetAxis("Vertical"));

     Vector3 moveHorizontal = transform.up * -moveInput.x;

     Vector3 moveVertical = transform.right * moveInput.y;

     theRB.velocity = (moveHorizontal + moveVertical) * moveSpeed;

     //player view contol
     mouseInput = new Vector2(Input.GetAxisRaw("Mouse X"), Input.GetAxisRaw("Mouse Y")) * mouseSensitivity;

     transform.rotation = Quaternion.Euler(transform.rotation.eulerAngles.x, transform.rotation.eulerAngles.y, transform.rotation.eulerAngles.z - mouseInput.x);

     viewCam.transform.localRotation = Quaternion.Euler(viewCam.transform.localRotation.eulerAngles + new Vector3(0f, mouseInput.y, 0f));

     //Shooting

     if (Input.GetMouseButtonDown(0))
     {
         if (currentAmmo > 0)
         {

             Ray ray = viewCam.ViewportPointToRay(new Vector3(.5f, .5f, 0f));
             RaycastHit hit;
             if (Physics.Raycast(ray, out hit))
             {
                 //Debug.Log("I'm looking at " + hit.transform.name);
                 Instantiate(bulletInpact, hit.point, transform.rotation);

                 if (hit.transform.tag == "Enemy")
                 {
                     hit.transform.parent.GetComponent<EnemyController>().TakeDamage();
                 }

             }
             else
             {
                 Debug.Log("I'm looking at nothing!");
             }
             currentAmmo--;
             gunAnim.SetTrigger("Shoot");
             UpdateAmmoUI();
         }

     }
 }



 public void TakeDamage(int damageAmount)
 {
     currentHeath -= damageAmount;

     if(currentHeath <= 0)
     {
         deadScreen.SetActive(true);
         hasDied = true;
         currentHeath = 0;
     }

     healthText.text = currentHeath.ToString() + "%";
 }

 public void AddHealth(int healAmount)
 {
     currentHeath += healAmount;
     if(currentHeath > maxHealth)
     {
         currentHeath = maxHealth;

         healthText.text = currentHeath.ToString() + "%";
     }
 }

 public void UpdateAmmoUI()
 {
     ammoText.text = currentAmmo.ToString();
 }

}

Add comment