Shield System (Need Help)

Questions & Answers
1

I’m trying to make a shield system. I have two values (100, 100) and a damage value (109). Since this is a shield system, i need to subtract 109 by 100 (9) and somehow display the shield hp, and subtract the remaining damage value to health, so it would look like (109 - 100 = 9, (0 Shield HP) 100 - 9 = 91 (91 HP)) I’ve tried doing this, but it doesn’t work.

curShield -= damage;
        damage -= curShield;
        if (curShield - damage <= 0)
        {
            curShield = 0;
        }
        else
        {
            Mathf.Abs(curShield);
        }
        if (damage > 0 && curShield <= 0)
        {
            damage -= curHealth;
            curHealth -= damage;
            Mathf.Abs(curHealth);
        }
2

@memeinaction
Here is a simple example of shield system. Hopefully you can expand from this:

public float maxHealth = 100;
public float maxShieldDurability = 100;

float health;
float shieldDurability;

private void Start()
{
    health = maxHealth;
    shieldDurability = maxShieldDurability;

    TakeDamage(109);
    Debug.Log("health: " + health.ToString() + " shield: " + shieldDurability.ToString());
}

public void TakeDamage(float damage)
{
    if (!Shielded())
    {
        if (damage <= health)
        {
            health -= damage;
        }

        else
        {
            health = 0;
        }
    }

    else
    {
        if (damage <= shieldDurability)
        {
            shieldDurability -= damage;
        }

        else
        {
            damage = damage - shieldDurability;
            shieldDurability = 0;
            health -= damage;
        }
    }
}

bool Shielded()
{
    if (shieldDurability > 0)
    {
        return true;
    }
    else
    {
        return false;
    }
}
3

@kitten, since it doesnt allow me to comment on your profile, for whatever reason, I works but when i try adding damage to 101, it goes negative, and doesnt subtract from health. I dont know what im missing.

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

public class HealthSystem : MonoBehaviour {

    public float maxHealth = 100;
    public float maxShieldDurability = 100;

    float health;
    float shieldDurability;

    private void Start()
    {
        health = maxHealth;
        shieldDurability = maxShieldDurability;

        TakeDamage(109);
        Debug.Log("health: " + health.ToString() + " shield: " + shieldDurability.ToString());
    }

    public void TakeDamage(float damage)
    {
        if (!Shielded())
        {
            health -= damage;
        }
        else
        {
            shieldDurability -= damage;
        }
    }

    bool Shielded()
    {
        if (shieldDurability > 0)
        {
            return true;
        }
        else
        {
            return false;
        }
    }

    IEnumerator DetectLowHealth()
    {
        yield return new WaitForSeconds(0.5f);
        yield return new WaitForSeconds(0.5f);
        StartCoroutine(DetectLowHealth());
    }
}