help me please I'm doing an assignment and I'm having trouble with my code I'm trying to have an instance of weaponStats that I can reference back for stats on weapons and in the gameManager it changes weaponID to the current equipped weapon on the player but when i try to hit an enemy unity says that stats is = to null
On the line "if (stats.weaponID == 1)" I receive a null reference error I've tried a number of different ways to instantiate but still get the null error
yet i don't receive an error in other classes
please see the function below
public void Shoot(bool isTesting = false)
{
Vector2 mousePosition = new Vector2(Camera.main.ScreenToWorldPoint(Input.mousePosition).x, Camera.main.ScreenToWorldPoint(Input.mousePosition).y);
Vector2 firePointPosition = new Vector2(firePoint.position.x, firePoint.position.y);
Vector2 direction = mousePosition - firePointPosition;
if (isTesting)
{
direction = transform.right;
}
RaycastHit2D hit = Physics2D.Raycast(firePointPosition, direction, 100, whatToHit.value);
// kill the enemy nothing else and check what weapon it was
if (hit.collider != null) {
Enemy enemy = hit.collider.GetComponent<Enemy>();
if (enemy != null) {
if (stats == null)
{
stats = WeaponStats.instance;
}
if (stats.weaponID == 1)
{
enemy.Damaged(stats._PistolDamage);
}
else if (stats.weaponID == 2)
{
enemy.Damaged(stats._RifleDamage);
}
else {
Debug.Log("HELP!!");
}
}
}
// spawn effects
if (Time.time >= timeToSpawnEffect) {
Vector3 hitPos;
Vector3 hitNormal;
if (hit.collider == null) {
hitPos = direction * 35;
hitNormal = new Vector3(9999, 9999, 9999);
} else {
hitPos = hit.point;
hitNormal = hit.normal;
}
Effect(hitPos, hitNormal);
timeToSpawnEffect = Time.time + 1 / effectSpawnRate;
}
}
This is a copy of the weaponstats class
using UnityEngine;
using System.Collections;
public class WeaponStats : MonoBehaviour {
public static WeaponStats instance;
public int weaponID = 0;
// dmage based on equiped weapon
public float Damage = 10f;
public float Firerate = 7.5f;
#region Weapons
#region Pistol
public float _PistolDamage = 30f;
public float _PistolFirerate = 0f;
#endregion
#region Rifle
public float _RifleDamage = 10f;
public float _RifleFirerate = 7.5f;
#endregion
#endregion
/// <summary>
/// if weapon stats instance = to null
/// </summary>
void Awake() {
if (instance == null) {
instance = this;
}
}
}
In this script it works perfectly fine
using UnityEngine;
using UnityEngine.UI;
public class WeaponUpgrading : WeaponStats {
// weapons text fields
#region Pistol
[SerializeField]
private Text PistolDamage;
[SerializeField]
private Text PistolFirerate;
#endregion
#region Rifle
[SerializeField]
private Text RifleDamage;
[SerializeField]
private Text RifleFirerate;
#endregion
#region Modifires
[SerializeField]
private float DamageMultiplier = 1.3f;
[SerializeField]
private float FirerateMultiplier = 1.3f;
#endregion
private WeaponStats stats;
void Start() {
stats = WeaponStats.instance;
UpdateValues(0); // update all on load
}
void UpdateValues(int ID) {
switch (ID) {
case 1:
// update pistol
PistolDamage.text = "Damage: " + stats._PistolDamage.ToString();
PistolFirerate.text = "Firerate: " + stats._PistolFirerate.ToString();
break;
case 2:
// update rifle
RifleDamage.text = "Damage: " + stats._RifleDamage.ToString();
RifleFirerate.text = "Firerate: " + stats._RifleFirerate.ToString();
break;
default:
// refresh all on default
PistolDamage.text = "Damage: " + stats._PistolDamage.ToString();
PistolFirerate.text = "Firerate: " + stats._PistolFirerate.ToString();
RifleDamage.text = "Damage: " + stats._RifleDamage.ToString();
RifleFirerate.text = "Firerate: " + stats._RifleFirerate.ToString();
break;
}
}
public void UpgradePistol()
{
//Debug.Log(s)
/*
stats.PistolDamage = (stats.PistolDamage * DamageMultiplier);
stats.PistolFirerate = Mathf.Round(stats.PistolFirerate * FirerateMultiplier);
UpdateValues(1);
*/
stats._PistolDamage = stats._PistolDamage * DamageMultiplier;
PistolDamage.text = "" + stats._PistolDamage;
}
public void UpgradeRifle() {
stats._RifleDamage = stats._RifleDamage * DamageMultiplier;
RifleDamage.text = "" + stats._RifleDamage;
stats._RifleDamage = stats._RifleDamage * DamageMultiplier;
RifleDamage.text = "" + stats._RifleFirerate * FirerateMultiplier;
/*
stats.RifleDamage = (int)(stats.RifleDamage * DamageMultiplier);
stats.RifleFirerate = Mathf.Round(stats.RifleFirerate * FirerateMultiplier);
*/
//UpdateValues(2);
}
}
