Actionscript 3 random

This article originated mainly from my personal needs. I often need to generate a random value in AS 3.0, but not always remember exactly how to generate specific random number. So I gathered some useful lines of code that I personaly use. Hope you find them useful :-)

  1. random number between 0 and 1
    var myNum:Number = Math.random();
    trace(myNum);
    // gives something like 0.4654723424464464
  2. random number between 0 and 5
    var myNum:Number = Math.random()*5;
    trace(myNum);
    // gives same long numbers as example abowe but between 0 and 5
  3. If you need an integer from random number.
    var myNum:Number = Math.floor(Math.random()*5);
    trace(myNum);
    // gives you random between 0 and 5 rounding decimal numbers down
    
    var myNum:Number = Math.ceil(Math.random()*5);
    trace(myNum);
    // gives you random between 0 and 5 rounding decimal numbers up
    
    var myNum:Number = Math.round(Math.random()*5);
    trace(myNum);
    // gives you random between 0 and 5 rounding decimal numbers up or down
  4. And if you need to start from number other than 0
    var myNum:Number = Math.ceil(Math.random()*15) + 5;
    trace(myNum);
    // gives you random number between 5 and 20;
  5. If you need to specify minimum and maximum value
    var minLimit:uint = -5;
    var maxLimit:uint = 20;
    var range:uint = maxLimit - minLimit;
    varmy Num:Number = Math.ceil(Math.random()*range) + minLimit;
    trace(myNum);
    //gives you random numbers from -5 to 20