Health bar goes negative

Questions & Answers
1

Does anyone know how to make the health bar stop at zero? Sometimes the player dies but most of the time when the player is holding a weapon the health bar goes negative.
My code:
public int healths = 10;
// Start is called before the first frame update
void Start()
{

}

// Update is called once per frame
void Update()
{
    if(healths == 0)
    {
        SceneManager.LoadScene("lose");
        Cursor.visible = false;
        Cursor.lockState = CursorLockMode.None;
    }
}

private void OnCollisionEnter(Collision collision)
{
    if(collision.gameObject.tag == "Enemy")
    {
        healths = healths - 1;
    }

    if(collision.gameObject.tag == "Lava")
    {
        healths = healths - 1;
    }
}

}

The health bar code:
Text E;
public GameObject Player;
// Start is called before the first frame update
void Start()
{
E = GetComponent();
}

// Update is called once per frame
void Update()
{
    E.text = "Health: " + Player.GetComponent<E>().healths;

}

}

3

The best thing that you can do is to use Math.Clamp. Math.Clamp will take a value, a minimum value and a maximum value and it will return the value clamped between the given minimum and maximum and thus you can make sure that your value never goes below 0 and never exceeds maximum health. Code:

healths = Mathf.Clamp(healths - 1, 0, 10); //change 10 to whatever maximum health is
2

You should guard against negative values for health on all places where you take a hit. Maybe the player collides with multiple enemies, or both lava and enemy the same frame…

if(healths>0) healths -= 1;