Commit graph

26 commits

Author SHA1 Message Date
Yuri Rubinsky
d11bb866ff Fix randfn to prevent generating of nan values 2023-03-03 16:43:48 +03:00
Rémi Verschelde
d95794ec8a
One Copyright Update to rule them all
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00
Rémi Verschelde
c273ddc3ee Style: Partially apply clang-tidy's cppcoreguidelines-pro-type-member-init
Didn't commit all the changes where it wants to initialize a struct
with `{}`. Should be reviewed in a separate PR.

Option `IgnoreArrays` enabled for now to be conservative, can be
disabled to see if it proposes more useful changes.

Also fixed manually a handful of other missing initializations / moved
some from constructors.
2022-05-02 16:28:25 +02:00
lawnjelly
1485924a2b Float literals - fix main primitives to use real_t casting
Uses (real_t) casting to ensure appropriate calculations are done in 32 bit where real_t is compiled as 32 bit.
2022-02-24 08:15:10 +00:00
Rémi Verschelde
fe52458154
Update copyright statements to 2022
Happy new year to the wonderful Godot community!
2022-01-03 21:27:34 +01:00
Rémi Verschelde
b5334d14f7
Update copyright statements to 2021
Happy new year to the wonderful Godot community!

2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.

We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)

Here's to a great year 2021 for all Godot users 🎆
2021-01-01 20:19:21 +01:00
Andrii Doroshenko (Xrayez)
b5107715f1 Add ability to restore RandomNumberGenerator state
- added `state` as a property to restore internal state of RNG;
- `get_seed()` returns last seed used to initialize the state rather than the current state.

Co-authored-by: MidZik <matt.idzik1@gmail.com>
2020-12-07 13:50:46 +02:00
Yuri Roubinsky
38fb26794b Exposed randi_range to global funcs + renamed rand_range to randf_range 2020-11-06 17:06:26 +03:00
Yuri Roubinsky
31faa1f226 Fix biased output of randi_range 2020-10-29 15:41:00 +03:00
Rémi Verschelde
5f4d64f4f3
Linux/BSD: Fix support for NetBSD
Add __NetBSD__ to `platform_config.h` so that it can find `alloca`
and use the proper `pthread_setname_np` format.

Rename RANDOM_MAX to avoid conflict with NetBSD stdlib.

Fixes .
2020-09-18 10:27:55 +02:00
Rémi Verschelde
1c2f2a805d typedefs: Cleanup unused macros and unnecessary checks
We now require a compiler with C++17 support, so we don't need to
check for features added to GCC 5 or Clang 3.2.

Clang builtin availability checks were unused anyway as Clang defines
`__GNUC__` as it's also a GNU C implementation.

Fixes .
2020-03-11 21:44:56 +01:00
Rémi Verschelde
a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00
Rémi Verschelde
73960e585b
Merge pull request from toasteater/fix/pcg-randf
Improved uniformity of RandomPCG::randf.
2019-06-12 15:21:58 +02:00
Yuri Roubinsky
134be5c728
Merge pull request from Chaosus/randfn
Added gaussian distribution function to RNG
2019-04-07 08:32:04 +03:00
Chaosus
6280be46a6 Properly setup seed in RNG 2019-03-27 19:37:25 +03:00
toasteater
5f1b9a2313 Improved uniformity of RandomPCG::randf.
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
Chaosus
5f137925dc Added normally distributed generation function to RNG 2019-03-17 08:09:46 +03:00
Rémi Verschelde
bce56cf337 Fix -Wc++11-extensions warning after
Fixes .
2019-03-07 22:48:00 +01:00
MidZik
4eccb58bc5 Fixed get_seed() not returning the correct seed. 2019-03-07 02:45:18 -06:00
Chaosus
f946b28f75 Fix random generation, to not retrieve 0 after seed() 2019-02-10 14:16:02 +03:00
Rémi Verschelde
a0581cca1f Revert "Revert "Update random_pcg.h""
This reverts commit 6f704c338a.

Sorry about this, this was a test and not meant to be pushed to master. :/
2019-01-23 10:36:36 +01:00
Rémi Verschelde
6f704c338a Revert "Update random_pcg.h"
This reverts commit 64e584a97e.
2019-01-23 10:30:18 +01:00
Leon Krause
35466475fe Fix HTML5 build warning 2019-01-20 00:12:50 +01:00
Calamander
64e584a97e
Update random_pcg.h
little fix to function types
2019-01-07 23:13:16 +01:00
Rémi Verschelde
b16c309f82 Update copyright statements to 2019
Happy new year to the wonderful Godot community!
2019-01-01 12:58:10 +01:00
Chaosus
f8151a9e50 Implement random number generator
Co-authored-by: Zirak <zirakertan@gmail.com>
2018-11-13 10:50:07 +03:00