Multiple instances of an object referencing a variable in a script but having different values?

Questions & Answers
1

I’m trying to create a two-player tank battling game and have come a bit stuck. For each tank I want to track the number of bullets left to prevent them from firing too many. Each instance of the tank is referring to a single script called TankShooting, inside of which is a variable called bulletCount that I use to track the number of bullets remaining.
My question is this: Is there a way for me to assign this variable a different value for each of the Tank instances in the scene?
For example, I’ll start by giving tanks Tank1 and Tank2 three bullets each. If Tank1 fires a bullet, I want to decrease its value of bulletCount by 1 , while keeping the value of bulletCount for Tank2 the same (i.e. 3).
Thank you so much if anyone is able to help me out with this. I really appreciate it!

Here’s a copy of my TankShooting script:

using UnityEngine;  
using UnityEngine.UI;

public class TankShooting : MonoBehaviour
{
    public int m_PlayerNumber = 1; // Used to identify which player called the script
    public Rigidbody m_Shell; // The prefab of the shell
    public Transform m_FireTransform;
    public float m_LaunchForce = 30f;
    
    private string m_FireButton;        
    private bool m_Fired;
	public int m_BulletCount = 3;

    private void OnEnable()
    {
		
    }

    private void Start()
    {
		Debug.Log ("Bullet count at start = " + m_BulletCount);
        m_FireButton = "Fire" + m_PlayerNumber;
    }

    private void Update()
	{
		if (Input.GetButtonDown (m_FireButton)) {
			Fire ();
		}
	}


	private void Fire()
	{
		if (m_BulletCount > 0) {
			// Instantiate a shell and launch it.
			Rigidbody shellInstance = Instantiate (m_Shell, m_FireTransform.position, m_FireTransform.rotation) as Rigidbody;

			// Set the shells velocity to the value of m_LaunchForce in the direction the tank is facing
			shellInstance.velocity = m_LaunchForce * m_FireTransform.forward;
		} else {
			Debug.Log ("Not enough bullets left to fire!");
		}
    }

	public int getBulletCount() // Returns the current value of m_BulletCount as an integer
	{
		return m_BulletCount;
	}

	public void setBulletCount(int value) // Sets m_BulletCount to a specific value
	{
		m_BulletCount = value;
	}

	public void incrementBulletCount(int value) // Increment m_BulletCount by the increment specified
	{
		Debug.Log (m_BulletCount);
		m_BulletCount = m_BulletCount + value;
	}
}
2

Hi, I think Hellium to reason shows us your script to better understand. As he told you he sufi the script in each tank.

private GameObject bullet;
    private GameObject gunModel;

	public float NumBullet = 1; // One shot for each bullet in the variable MaxBullet
	public float bulletMax = 5;
	public bool NoBullet = true;

    void Update()
    {

		if (bulletMax < 0) {

			NoBullet = false;

		}
        if (Input.GetMouseButtonDown(0))
        {
			if (NoBullet) {
				GameObject bullet = Instantiate (bullet);
				bullet.GetComponent<Rigidbody> ().AddForce (gunModel.transform.forward * 700);
				bulletMax -= NumBullet  ;
			}

        }
    }

For example this script can just serve the two tanks, if not what you want to do, send us more information to soon