1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef MATH_CONSTANTS_H
#define MATH_CONSTANTS_H
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
namespace math {
static constexpr float PI = 3.14159265358979323846f;
static constexpr float INVPI = 0.3183098861837907f; // sic ( 1.0f / PI is not a constexpr)
static constexpr float INVPI2 = 0.15915494309189535f; // sic ( 1.0f / (PI * 2) is not a constexpr)
static constexpr float TWOPI = PI * 2.0f;
static constexpr float SQRPI = 9.869604401089358f; // sic ( PI * PI is not a constexpr)
static constexpr float PIU4 = 1.2732395447351628f; // sic ( 4.0f / PI is not a constexpr)
static constexpr float PISUN4 = -0.4052847345693511f; // sic (-4.0f / (PI * PI) is not a constexpr)
static constexpr float HALFPI = PI * 0.5f;
static constexpr float QUARTERPI = PI * 0.25f;
static constexpr float NEGHALFPI = -HALFPI;
static constexpr float SQRT2 = 1.41421356237f;
static constexpr float RAD_TO_DEG = 57.29577951308232f; // sic (360 / (2*PI) is not a constexpr)
static constexpr float DEG_TO_RAD = 0.017453292519943295f; // sic ((2*PI) / 360 is not a constexpr)
};
#endif
|
