Module mwc
This module implements a multiply-with-carry RNG.
Based on code and algorithm by George Marsaglia: MWC
To use the plugin, add the following in build.settings:
plugins = {
["plugin.mwc"] = { publisherId = "com.xibalbastudios" }
}
Sample code is available here.
Functions
| MakeGenerator ([opts]) | Instantiates a new random generator. |
| MakeGenerator_Lib ([opts]) | Variant of MakeGenerator, where the generators behave like math.random. |
Functions
- MakeGenerator ([opts])
-
Instantiates a new random generator.
Parameters:
- opts
table
Generator options. Fields:
- z Z seed; if absent, uses a default.
- w W Seed; if absent, uses a default.
Returns:
-
function
May be called as
z, w = gen("get_zw"), in which case z and w will be the current Z and W seeds, respectively.Otherwise, called as
result = gen(how). When how is "float", result will be a random number ∈ [0, 1); with anything else, it will instead be a random non-negative 32-bit integer. - opts
table
- MakeGenerator_Lib ([opts])
-
Variant of MakeGenerator, where the generators behave like math.random.
Parameters:
- opts table As per MakeGenerator.
Returns:
-
function
Generator with the semantics of math.random.
This may also be called as
z, w = gen("get_zw"), in which case z and w will be the current Z and W seeds, respectively.