love.math.random
Available since LÖVE 0.9.0 |
This function is not supported in earlier versions. |
Generates a pseudo-random number in a platform independent manner. This function is seeded at startup, so you generally don't need to seed it yourself.
Neither this function, RandomGenerator, nor Lua math.random generates truly random number, thus it's unsuitable for cryptographic usage! |
Contents
Function
Get uniformly distributed pseudo-random real number between 0 inclusive to 1 exclusive.
Synopsis
number = love.math.random( )
Arguments
None.
Returns
number number
- The pseudo-random number.
Function
Get a uniformly distributed pseudo-random integer between 1 inclusive to max
inclusive.
Synopsis
number = love.math.random( max )
Arguments
number max
- The maximum possible value it should return.
Returns
number number
- The pseudo-random integer number.
Function
Get uniformly distributed pseudo-random integer between min
inclusive to max
inclusive.
Synopsis
number = love.math.random( min, max )
Arguments
number min
- The minimum possible value it should return.
number max
- The maximum possible value it should return.
Returns
number number
- The pseudo-random integer number.
Examples
Generates a number between 1 and 100 (both inclusive).
function love.load()
randomNumber = love.math.random(1, 100)
end
Generate a random permutation of list:
function shuffle (list)
-- backward iteration from last to second element:
for i = #list, 2, -1 do
-- choose one of elements:
local j = love.math.random(i) -- between 1 to i (both inclusive)
-- replace both elements each other:
list[i], list[j] = list[j], list[i]
end
end
Notes
When using the 2nd and 3rd variant, numbers passed will be rounded, thus, love.math.random(0, 76.767)
may return 77
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