Easy Random Number Function (Min, Max & Round)

This functions makes getting random whole/decimal numbers easy. It also automatically calls Randomize the first time the function is called, so there is no need to put it in the Form_Load Procedure.

VB Code:

' Place this code in a module.
''''''''''''''''''''''''''''''''''
' Date:         7/2/2005         '
' Last Update:  7/29/2005        '
' Author:       Jeremy Blanchard '
''''''''''''''''''''''''''''''''''
Option Explicit
 
Public Function Rand(Max As Double, _
            Optional Min As Double = 0, _
            Optional NumDigitsAfterDecimal As Integer = 0) As Double
  ' Returns a pseudo-random number  between 'Min' and 'Max'.
  '   Calls Randomize the first time the function is called.
  
    Static sbRandomized As Boolean
    Dim r As Double
  
    If Not sbRandomized Then
        Randomize
        sbRandomized = True
    End If
  
    If NumDigitsAfterDecimal <= 0 Then
        Rand = Int(Rnd * (Max - Min + 1)) + Min
    Else
        ' Less accurate number distrubtion because of decimals.
        Rand = Round((Rnd * (Max - Min)) + Min, NumDigitsAfterDecimal)
    End If
End Function

VB Code:

' Example uses
  ...
  r = Rand(255)
  g = Rand(255)
  b = Rand(255)
  Form1.BackColor = RGB(r, g, b)   ' Random background color
  ...
  iMyNum = Rand(10, -10, 3)  ' Rounded to 3 decimal places

NOTE: Update on 7/29/05 switched max to the first parameter and Min to the second (and made it default optional).

Let me know if you like this module or used it in a cool way.

A random timer:

VB Code:

'''''''''''''''''''Random Timer'''''''''''''''''''''''''''''''''''''''
'Credits: EyeRmonkey for the random module
'Created By: AliasXNeo
'Public use
 
Option Explicit
 
Private Sub Command1_Click()
If Command1.Caption = "Stop Timer" Then 'Checking if it's running already
'If it is, disable it
Timer1.Enabled = False
Timer2.Enabled = False
Command1.Caption = "Start Timer"
 
Else 'If it isn't:
 
Command1.Caption = "Stop Timer" 'Make sure they can stop it
'Randomize the time between
Label2.Caption = rand(1, 10)
Label4.Caption = rand(1, 10)
'Set the timer interval random from the two random results, and times by 1000 for seconds
Timer1.Interval = rand(Label2.Caption, Label4.Caption) * 1000
'Set the countdown timer, and format it
Label6.Caption = Timer1.Interval / 1000
'Enabled everything
Timer1.Enabled = True
 
End If
End Sub
 
Private Sub Timer1_Timer()
'Randomize to get the between
Label2.Caption = rand(1, 10)
Label4.Caption = rand(1, 10)
'Randomize our two results, and times by 1000 for seconds
Timer1.Interval = rand(Label2.Caption, Label4.Caption) * 1000
Label6.Caption = Timer1.Interval / 1000
End Sub

It's good for the kind of stuff I program :)

what are you trying to do?
make a form backcolor to changed every time it opend?



.

Yeah, I'm lost on that one. I can't believe I ever posted this. But while I'm here I will post an updated version that allows decimals.

wow !! your code is way way to long

VB Code:

Private Sub Command1_Click()
Randomize
 r = Int(255 * Rnd + 0)
  g = Int(255 * Rnd + 0)
  b = Int(255 * Rnd + 0)
  Form1.BackColor = RGB(r, g, b)
 
End Sub
 
Private Sub Form_Load()
Randomize
 r = Int(255 * Rnd + 0)
  g = Int(255 * Rnd + 0)
  b = Int(255 * Rnd + 0)
  Form1.BackColor = RGB(r, g, b)
 
End Sub

I think you are missing the point. It is suppose to be all purpose. As in I can put that module into anything and use it to get any kind of random number. If all I wanted to do was get 3 random numbers then that would be fine.

Also, you don't need + 0 after everything.

Quote:

---

Originally Posted by eyeRmonkey

I think you are missing the point. It is suppose to be all purpose. As in I can put that module into anything and use it to get any kind of random number. If all I wanted to do was get 3 random numbers then that would be fine.

Also, you don't need + 0 after everything.

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yes you do need 0 after every single rendom generated number

My code was simply just making a completely random timer. I was frankly bored and was just thinking of something to make with it, and I came up with that. Make it yourself, as you can see it gets two random numbers, then get another random number betweeen those two random numbers giving a very smooth random. For the stuff I do, it's very handy.

Quote:

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Originally Posted by wiz126

yes you do need 0 after every single rendom generated number

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If you actually think about it, it's completely pointless ;)

well the way he did it you must have the 0 or it will b wrong