Commit graph

28 commits

Author SHA1 Message Date
Robert Müller 859727c1d3 Fix inaccurate envelope point value rounding
Round to nearest integer instead of truncating in `f2fx` to ensure correct round-trip with `fx2f`.

Add test to ensure correct round-trip with maximum `0.0005f` absolute error.
2023-11-10 19:11:10 +01:00
Robert Müller 4ae0928b47 Support bezier envelope curves in maps and editor
Port map and editor support for `CURVETYPE_BEZIER` from upstream, i.e. support bezier curves with configurable in- and out-tangents for every envelope point.

The in- and out-tangents are represented by triangles and can be dragged in the envelope editor like the envelope points.

Support reading and writing the bezier information as a separate UUID-based map item. If the bezier information is not found, bezier will default to linear behavior. Old clients will still be able to read the new maps and ignore the unknown map item. The unknown curvetype will also be handled as linear by old clients.

Allow reading upstream maps that use `CMapItemEnvelope` version 3. On upstream, a different struct is used to store all envelope points including bezier information, which broke compatibility to old clients.

Fix holding Ctrl for slow envelope point editing not working for vertical movement.

Highlight the currently selected element (envelope point or bezier tangent marker) which is being used with the value/time edit boxes.

Hide the value/time edit boxes when no element is selected.
2023-07-16 12:46:34 +02:00
Robert Müller a9ef757475 Add random_float functions with min and max arguments
Add `random_float(float min, float max)` to generate a random `float` between `min` and `max`.

Add `random_float(float max)` to generate a random `float` between `0.0f` and `max`.
2023-03-18 12:09:37 +01:00
Robert Müller ea6e267d98 Add random_angle function
To generate a random angle in the range `[0.0f;2.0f * pi[`. This ensures that the random angle cannot be `2.0f * pi`, which would be identical to the angle `0.0f` and therefore cause the random angle to be less uniformly selected.

Note that this first casts `RAND_MAX` to a `float` and then uses `std::nextafter` to get the next larger `float`. Using `RAND_MAX + 1` would cause an integer overflow on systems where `RAND_MAX == INT_MAX` (e.g. Ubuntu and macOS).
2023-03-18 12:07:52 +01:00
Robert Müller db4ec4a12d Replace usages of C math functions
Replacing the C standard headers with the C++ standard headers causes various `error: call to 'floor' promotes float to double [performance-type-promotion-in-math-fn,-warnings-as-errors]`, which are fixed by using the C++ std math functions or our own math functions instead of the C math functions.

- Use `absolute` instead of `abs` and `fabs`.
- Use `std::floor` instead of `floor` and `floorf`.
- Use `std::ceil` instead of `ceil`, `ceilf` and `round_ceil`.
- Use `std::round` instead of `round` and `roundf`.
- Use `std::sin` instead of `sin` and `sinf`.
- Use `std::asin` instead of `asin` and `asinf`.
- Use `std::cos` instead of `cos` and `cosf`.
- Use `std::acos` instead of `acos` and `acosf`.
- Use `std::tan` instead of `tan` and `tanf`.
- Use `std::atan` instead of `atan` and `atanf`.
- Use `std::pow` instead of `pow` and `powf`.
- Use `std::log` instead of `log` and `logf`.
- Use `std::log2` instead of `log2` and `log2f`.
- Use `std::log10` instead of `log10` and `log10f`.
- Use `std::pow` instead of `pow` and `powf`.
- Use `std::sqrt` instead of `sqrt` and `sqrtf`.
- Use `std::fmod` instead of `fmod` and `fmodf`.
- Use `direction(Angle)` instead of `vec2(std::cos(Angle), std::sin(Angle))`.
- Use `length(vec2(x, y))` instead of `std::sqrt(x * x + y * y)`.
- Remove unused `NormalizeAngular` and `AngularDistance` functions.
2023-03-01 19:26:53 +01:00
Robert Müller a76fb9b99a Replace all usages of C standard headers with C++ headers 2023-03-01 19:26:51 +01:00
heinrich5991 eb2823231f Work around Windows's definition of min/max
This allows us to use `std::min`/`std::max`.
2022-05-31 17:26:35 +02:00
Dennis Felsing 6a7c7ff4cc Use std::gcd 2022-04-28 17:01:53 +02:00
Dennis Felsing 67286a4971 Remove unused sign() (C++11 has signbit) 2022-04-28 17:01:51 +02:00
Dennis Felsing af0fcf8773 Use std::clamp
Not sure if we want to, there are some easy functions like this we could
take from stdlib now
2022-04-28 17:01:30 +02:00
Robert Müller c14889e18a Code format: use multiple lines for function 2022-04-10 15:41:22 +02:00
Robert Müller 05bc25610b Fix undefined behavior in fixed point number conversion 2022-04-10 15:38:45 +02:00
Alexander Akulich ed8955e60f math: Rename frandom() to random_float() to match with random_int()
(cherry picked from commit 5e4c7b66c5)
2021-08-03 14:29:52 +02:00
def 3be8a592e5 Run clang-format
Purely automatic change. In case of conflict with this change, apply the
other change and rerun the formatting to restore it:

$ python scripts/fix_style.py
2020-09-26 21:50:15 +02:00
Learath bbdcb7035d Style 2020-09-22 15:47:21 +03:00
Learath 586043fc64 Use fixed point conversion consistently 2020-09-22 15:29:16 +03:00
yeojingkang de6ea67663 Update math.h 2020-08-20 05:02:33 +08:00
yeojingkang 6e9c370eca Added constexpr to math functions 2020-08-20 04:47:09 +08:00
Learath 37d9e4fa26 Add a saner way to select angles. Close #1916 2019-09-20 23:57:35 +03:00
Learath 93d14a1eca Inconvenience for windows 2019-04-26 22:36:49 +03:00
Learath 5e5def314f Add tests 2019-04-24 23:53:38 +03:00
Learath cc36af73be Cleanup colors 2019-04-24 23:53:26 +03:00
trml 0b3f3b03b5 Rewrite of prediction code, with additional prediction 2019-04-21 16:12:20 +02:00
def 15ecbb71d1 fixed compiling using visual studio 2013 by renaming the round function 2014-04-22 23:46:55 +02:00
oy 7df537fd68 fixed last commit 2011-06-02 17:38:36 +02:00
Choupom 101d9de3c3 added aspect ratio in display modes list in settings 2011-06-02 17:36:17 +02:00
Sworddragon fc9211c777 Updated copyrights 2010-11-20 21:26:06 +01:00
Magnus Auvinen 72c06a2589 copied refactor to trunk 2010-05-29 07:25:38 +00:00
Renamed from src/base/math.hpp (Browse further)