Difference between revisions of "random"

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* Be careful using random numbers in multiplayer, each client will come up with a different result. See multiplayer tutorials for more general information about locality.  
 
* Be careful using random numbers in multiplayer, each client will come up with a different result. See multiplayer tutorials for more general information about locality.  
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* The number returned is unlikely to be a whole number.<br>To return a whole number use either '''[[ceil]]''' or '''[[floor]]''' together with '''random'''.<br>
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* The number returned is unlikely to be a whole number.<br>To return a whole number use either '''[[round]]''', '''[[ceil]]''' or '''[[floor]]''' together with '''random''':<br>
 +
x=round(random 5) will return 0,1,2,3,4 or 5.
 
  x=floor(random 5) will return 0,1,2,3 or 4.
 
  x=floor(random 5) will return 0,1,2,3 or 4.
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  x=ceil(random 5) will return 0, 1,2,3,4 or 5. (0 is unlikely, but possible, as ceil 0 is 0)
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  x=ceil(random 5) will return 0, 1,2,3,4 or 5. (0 is very unlikely, but possible, as ceil 0 is 0)
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* You can also use '''[[round]]''' with '''random''' to create whole numbers, if you don't want to exclude the high or low numbers, as will happen with [[ceil]] and [[floor]].
 
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Revision as of 16:41, 20 February 2009

Introduced with Operation Flashpoint version 1.001.00
Hover & click on the images for descriptions

Description

Description:
Random real value from 0 (inclusive) to x (not inclusive).

Syntax

Syntax:
Number = random x
Parameters:
x: Number
Return Value:
Number

Examples

Example 1:
_rNumber = random 1

Additional Information

See also:
Math Commands

Notes

i
Only post proven facts here. Report bugs on the Feedback Tracker and discuss on the Arma Discord or on the Forums.

+ Add Note (Help)

Notes

  • Be careful using random numbers in multiplayer, each client will come up with a different result. See multiplayer tutorials for more general information about locality.
  • The number returned is unlikely to be a whole number.
    To return a whole number use either round, ceil or floor together with random:
x=round(random 5) will return 0,1,2,3,4 or 5. x=floor(random 5) will return 0,1,2,3 or 4. x=ceil(random 5) will return 0, 1,2,3,4 or 5. (0 is very unlikely, but possible, as ceil 0 is 0)

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