73960e585b
Merge pull request #27193 from toasteater/fix/pcg-randf
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Improved uniformity of RandomPCG::randf.
2019-06-12 15:21:58 +02:00
134be5c728
Merge pull request #27043 from Chaosus/randfn
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Added gaussian distribution function to RNG
2019-04-07 08:32:04 +03:00
6280be46a6
Properly setup seed in RNG
2019-03-27 19:37:25 +03:00
5f1b9a2313
Improved uniformity of RandomPCG::randf.
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When generating single precision floats, Godot casts a uint32_t to float,
causing uniformity loss.
This new randf, inspired by T. R. Campbell's random_real, samples the output
of rand as the fraction part of an infinite binary number, with some tricks
to reduce ops and branching. This method provides "good enough" uniformity at
decent speed, for floats greater than 2^-64. Smaller numbers are floored to 0.
2019-03-19 18:14:58 +08:00
5f137925dc
Added normally distributed generation function to RNG
2019-03-17 08:09:46 +03:00
bce56cf337
Fix -Wc++11-extensions warning after #26737
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Fixes #26769 .
2019-03-07 22:48:00 +01:00
4eccb58bc5
Fixed get_seed() not returning the correct seed.
2019-03-07 02:45:18 -06:00
f946b28f75
Fix random generation, to not retrieve 0 after seed()
2019-02-10 14:16:02 +03:00
a0581cca1f
Revert "Revert "Update random_pcg.h""
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This reverts commit 6f704c338a
2019-01-23 10:36:36 +01:00
6f704c338a
Revert "Update random_pcg.h"
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This reverts commit 64e584a97e
2019-01-23 10:30:18 +01:00
35466475fe
Fix HTML5 build warning
2019-01-20 00:12:50 +01:00
64e584a97e
Update random_pcg.h
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little fix to function types
2019-01-07 23:13:16 +01:00
b16c309f82
Update copyright statements to 2019
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Happy new year to the wonderful Godot community!
2019-01-01 12:58:10 +01:00
f8151a9e50
Implement random number generator
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Co-authored-by: Zirak <zirakertan@gmail.com>
2018-11-13 10:50:07 +03:00
Rémi Verschelde
Yuri Roubinsky
toasteater
MidZik
Leon Krause
Calamander