How can I make this only act once?

Questions & Answers
1

I made a script that gets when a certain variable = true, it subtracts 300 from another variable. The only problem is that it keeps subtracting and never stops. How can I make it only subtract once when it finds that it equals false? Thanks.

var LimbBroke : boolean = false;
var BodyArmature : GameObject;
var BodyMesh : GameObject;
var Blood : GameObject;
var SystemHealth : GameObject;

function Start ()
{
    Blood.particleEmitter.enabled = false;
}

function Update ()
{
    if(BodyArmature.GetComponent(LimbHealth).Health == 0)
    {
        LimbBroke = true;
        BodyMesh.renderer.enabled = false;
        Blood.particleEmitter.enabled = true;
        SystemHealth.GetComponent(MainPlayerHealth).MaxHealth -= 300;
    }
    
    if(BodyArmature.GetComponent(LimbHealth).Health == 100)
    {
        LimbBroke = false;
        BodyMesh.renderer.enabled = true; 
    }
}
2

replace

if(BodyArmature.GetComponent(LimbHealth).Health == 0)

with

if(BodyArmature.GetComponent(LimbHealth).Health == 0 && !LimbBroke)

or declare other variable and set it to another value on first executing, and don’t execute again if variable in new state

3

Change your if statement on the first one to this: it should work.

if(BodyArmature.GetComponent(LimbHealth).Health == 0 && LimbBroke == false)

4

Do you really have to check the health every frame?

Why not have an applyDmg(float dmgValue) function.

Like this

var LimbBroke : boolean = false;
var BodyArmature : GameObject;
var BodyMesh : GameObject;
var Blood : GameObject;
var SystemHealth : GameObject;

function Start ()
{
    LimbBroke = false;
    BodyMesh.renderer.enabled = true; 
    Blood.particleEmitter.enabled = false;
}

function Update ()
{
}

public function applyDmg(healValue : float)
{
var health : float = BodyArmature.GetComponent(LimbHealth).Health;
if(health > 0.0f)
{
    health -= dmgValue;
    if(health <= 0.0f)
    {
        LimbBroke = true;
        BodyMesh.renderer.enabled = false;
        Blood.particleEmitter.enabled = true;
        SystemHealth.GetComponent(MainPlayerHealth).MaxHealth -= 300;
        BodyArmature.GetComponent(LimbHealth).Health = 0.0f;
    }
    else
    {
        BodyArmature.GetComponent(LimbHealth).Health = health;
    }
}

}

function applyHealing(healValue : float)
{
var health : float= BodyArmature.GetComponent(LimbHealth).Health;
if(health < 100.0f)
{
    health += healValue;
    if(LimbBroke == true && health >= 100.0f)
    {
        LimbBroke = false;
        BodyMesh.renderer.enabled = true;
        BodyArmature.GetComponent(LimbHealth).Health = 100.0f;
    }
    else
    {
        BodyArmature.GetComponent(LimbHealth).Health = health;
    }
}