kindred/create
1
1
Fork 0
Code Issues 53 Pull Requests Actions Packages Projects 9 Releases 2 Wiki Activity

Base: Make degrees and radians convertions safer and faster

Browse Source
This commit is contained in:
Benjamin Nauck
2025-04-08 23:12:12 +02:00
parent 16a7bf420c
commit 1370c2101f
1 changed files with 26 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
src/Base/Tools.h
View File

@@ -129,18 +129,38 @@ constexpr std::enable_if_t<std::is_arithmetic_v<T> && std::is_signed_v<T>, T> sg
return T(oneIfPositive - oneIfNegative); // 0/1 - 0/1 = -1/0/1
}
/// Convert degrees to radians, allow deduction for floating point types
template<std::floating_point T>
constexpr T toRadians(T degrees)
{
constexpr auto degToRad = std::numbers::pi_v<T> / T(180);
return degrees * degToRad;
}
template<class T>
inline T toRadians(T d)
/// Convert degrees to radians, allow **explicit-only** for any arithmetic type
template<typename T>
requires(std::is_arithmetic_v<T> && !std::floating_point<T>)
constexpr T toRadians(std::type_identity_t<T> degrees)
{
return static_cast<T>((d * std::numbers::pi) / 180.0);
using ResultT = std::conditional_t<std::is_integral_v<T>, double, T>;
return static_cast<T>(toRadians<ResultT>(static_cast<ResultT>(degrees)));
}
template<class T>
inline T toDegrees(T r)
/// Convert radians to degrees, allow deduction for floating point types
template<std::floating_point T>
constexpr T toDegrees(T radians)
{
return static_cast<T>((r / std::numbers::pi) * 180.0);
constexpr auto radToDeg = T(180) / std::numbers::pi_v<T>;
return radians * radToDeg;
}
/// Convert radians to degrees, allow **explicit-only** for any arithmetic type
template<typename T>
requires(std::is_arithmetic_v<T> && !std::floating_point<T>)
constexpr T toDegrees(std::type_identity_t<T> radians)
{
using ResultT = std::conditional_t<std::is_integral_v<T>, double, T>;
return static_cast<T>(toDegrees<ResultT>(static_cast<ResultT>(radians)));
}
inline float fromPercent(const long value)