47 lines
1.0 KiB
C++
47 lines
1.0 KiB
C++
#pragma once
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#include "std.hpp"
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#include <cmath>
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#ifndef M_PI
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#define M_E 2.7182818284590452354
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#define M_LOG2E 1.4426950408889634074
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#define M_LOG10E 0.43429448190325182765
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#define M_LN2 0.69314718055994530942
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#define M_LN10 2.30258509299404568402
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#define M_PI 3.14159265358979323846
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#define M_PI_2 1.57079632679489661923
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#define M_PI_4 0.78539816339744830962
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#define M_1_PI 0.31830988618379067154
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#define M_2_PI 0.63661977236758134308
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#define M_2_SQRTPI 1.12837916709551257390
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#define M_SQRT2 1.41421356237309504880
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#define M_SQRT1_2 0.70710678118654752440
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#endif
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struct Vec2 {
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f32 x = 0, y = 0;
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};
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struct Vec3 {
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f32 x = 0, y = 0, z = 0;
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};
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struct Vec4 {
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f32 x = 0, y = 0, z = 0, w = 0;
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};
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/// radians
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typedef f32 angle_t;
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static inline angle_t normalizeAngle(angle_t a){
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return std::fmodf(a + M_PI, 2*M_PI) - M_PI;
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}
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static inline f32 angleToDegree(angle_t a){
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return (a / M_PI) * 180;
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}
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static inline angle_t degreeToRadian(f32 d){
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return (d / 180) * M_PI;
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} |