[Part 4] Mana is spent even without healing

[Terence]

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Reposting @stephanvieira3665‘s question from YouTube:

Hello, if i only have a little a bit of mana, not enough to heal 1x Health, it still drains all the mana. Have you found any fixes for this? Thanks!

void Heal()
{
    if (Input.GetButton("Healing") && Health < maxHealth && Mana > 0 && Grounded() && !pState.dashing)
    {
        pState.healing = true;          
        anim.SetBool("Healing", true);

        //healing
        healTimer += Time.deltaTime;
        if (healTimer >= timeToHeal)
        {
            Health++;
            healTimer = 0;
        }          
        //drain mana
        Mana -= Time.deltaTime * manaDrainSpeed;
    }
    else
    {
        pState.healing = false;
        anim.SetBool("Healing", false);
        healTimer = 0;
    }
}

[Ser Apustaja]

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To address the issue where the Heal function drains all mana even when there isn’t enough to heal a full health point, you can add a check to ensure that the mana cost for healing does not exceed the available mana. Here’s a modified version of your Heal function:

void Heal()
{
    if (Input.GetButton("Healing") && Health  0 && Grounded() && !pState.dashing)
    {
        pState.healing = true;          
        anim.SetBool("Healing", true);

        // Check if enough mana is available for healing
        float manaCost = Time.deltaTime * manaDrainSpeed;

        if (Mana >= manaCost)
        {
            // healing
            healTimer += Time.deltaTime;
            if (healTimer >= timeToHeal)
            {
                Health++;
                healTimer = 0;
            }          
            // drain mana
            Mana -= manaCost;
        }
        else
        {
            // Not enough mana to heal, stop healing
            pState.healing = false;
            anim.SetBool("Healing", false);
            healTimer = 0;
        }
    }
    else
    {
        pState.healing = false;
        anim.SetBool("Healing", false);
        healTimer = 0;
    }
}

Changes Made:

1. Mana Check: Before draining mana, the code checks if the current mana is greater than or equal to the cost of healing (manaCost).
2. Stop Healing: If there’s not enough mana, the healing state is reset, and the animation is stopped.

This way, the healing will only continue if there is sufficient mana to support it, preventing the drain of all the mana when it’s insufficient.

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