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