Question updated, 1/17/12 11:30 am EST.

What i am trying to do is to make the pet's hunger(or food) decrease every 12 hours

so the user/player can feed it every now and then.

any help would be much appreciated.

var monsterCurrentHunger: int = 100;
var monsterMaxHunger: int = 100;
var hungerTimerStarted: boolean = false;
var monsterAlive: boolean = true;
var saveTime: System.DateTime;
var passedTime: System.TimeSpan;
var hungryTime: System.TimeSpan; // need to make this into a constant of 12 hours

function Update () {

    // recording the timer or start point
    if (hungerTimerStarted == false){
    saveTime = System.DateTime.Now;
    hungerTimerStarted = true;
    }

    // once timer started 
    if (hungerTimerStarted == true){
    passedTime = System.DateTime.Now - saveTime;  



       // every 12 hours hunger lose 10 point.



    /*error: This code here is what i want to do and don't know how to do it.

1, how to create a constant timespan of 12 hours? (the hungryTime var on top)

2, how to do the 3 line below:

*/ //error msg end

      if (passedTime => hungryTime) {

      monsterCurrentHunger -= (10 * (passedTime/hungryTime));

          hungerTimerStarted = false;

      }

    }

}