random: Difference between revisions
Jump to navigation
Jump to search
Lou Montana (talk | contribs) m (Text replacement - "<dl class="command_description"> <dd class="notedate">" to "<dl class="command_description"> <dt></dt> <dd class="notedate">") |
Lou Montana (talk | contribs) m (Text replacement - " <!-- (DIS)?CONTINUE Notes -->" to "") |
||
| Line 62: | Line 62: | ||
{{GameCategory|tkoh|Scripting Commands}} | {{GameCategory|tkoh|Scripting Commands}} | ||
<dl class="command_description"> | <dl class="command_description"> | ||
<dt></dt> | <dt></dt> | ||
| Line 146: | Line 145: | ||
</dd> | </dd> | ||
</dl> | </dl> | ||
Revision as of 00:52, 6 April 2021
Description
- Description:
- Description needed
- Groups:
- Math
Syntax 1
- Syntax:
- Syntax needed
- Parameters:
- x: Number
- Return Value:
- Return value needed
Syntax 2
- Syntax:
- random [min, mid, max] Template:Since
- Parameters:
- [min, mid, max]: Array
- min: Number
- mid: Number
- max: Number
- Return Value:
- Number
Syntax 3
- Syntax:
- seed random x Template:Since
- Parameters:
- seed: Number
- x: Number
- Return Value:
- Number - value from 0 to x
Syntax 4
- Syntax:
- seed random [x, y] Template:Since
- Parameters:
- seed: Number
- [x, y]: Array position on the Perlin noise texture
- x: Number
- y: Number
- Return Value:
- Number - value from 0 to 1
Examples
- Example 1:
_rNumber = random 1;- Example 2:
_rNumber = random -10;- Example 3:
- Generate a random position inside a circle (see also Example Code: Random Area Distribution)
_center getPos [_radius * sqrt random 1, random 360]; - Example 4:
- To select random value from an array:
_array = ["apples", "pears", "bananas", "M16"]; _random = _array select floor random count _array; // Template:Since _random = selectRandom _array;
Additional Information
- See also:
- selectRandomselectRandomWeighted
Notes
-
Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note
- Posted on July 12, 2015 - 20:32 (UTC)
- Hcpookie
-
Random selections including negative numbers can be obtained via:
_Xrnd = round(random 200) -100;This will yield numbers between -100 and 100.- 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.
x = round(random 5) will return 0,1,2,3,4 or 5. (non-uniform distribution, 0 and 5 are half as likely to be selected than any of the other numbers) x = floor(random 5) will return 0,1,2,3 or 4. (uniform distribution, all numbers have the same probability of being selected) x = ceil(random 5) will return 0,1,2,3,4 or 5. (0 is very unlikely, but possible, as ceil 0 is 0) - Posted on July 22, 2018 - 12:58 (UTC+2)
- Lou Montana
-
Repartition comparison Formula 0 1 2 3 4 5 6 7 8 9 floor random 10; 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% floor random [0, 5, 10] 0% 2% 7% 17% 25% 25% 17% 7% 2% 0% floor random [0, 10, 0] 0% 0% 1% 2% 5% 9% 14% 19% 24% 26% floor random [0, 10, 5] 0% 0% 0% 1% 2% 5% 9% 16% 28% 38%