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oot/include/z64math.h
krimtonz f11a74d41d
Math3D and olib updates (#315)
* wip

* Olib updates

* wip

* wip

* rename most Math3D functions, few matches, documentation

* wip

* document most of math3d

* pr updates

* pr updates

* add missing comment block finalizer
2020-08-17 15:42:08 -04:00

89 lines
1.6 KiB
C

#ifndef _Z64MATH_H_
#define _Z64MATH_H_
#include <ultra64.h>
#define VEC_SET(V,X,Y,Z) V.x=X;V.y=Y;V.z=Z
typedef struct {
f32 x, y;
} Vec2f; // size = 0x08
typedef struct {
f32 x, y, z;
} Vec3f; // size = 0x0C
typedef struct {
u16 x, y, z;
} Vec3us; // size = 0x06
typedef struct {
s16 x, y, z;
} Vec3s; // size = 0x06
typedef struct {
s32 x, y, z;
} Vec3i; // size = 0x0C
typedef struct {
Vec3s center;
s16 radius;
} Sphere16; // size = 0x08
typedef struct {
Vec3f center;
f32 radius;
} Spheref; // size = 0x10
typedef struct {
Vec3f normal;
f32 originDist;
} Plane; // size = 0x10
typedef struct {
Vec3f vtx[3];
Plane plane;
} TriNorm; // size = 0x34
typedef struct {
/* 0x0000 */ s16 radius;
/* 0x0002 */ s16 height;
/* 0x0004 */ s16 yShift;
/* 0x0006 */ Vec3s pos;
} Cylinder16; // size = 0x0C
typedef struct {
f32 radius;
f32 height;
f32 yShift;
Vec3f pos;
} Cylinderf; // size = 0x18
typedef struct {
/* 0x0000 */ Vec3f point;
/* 0x000C */ Vec3f dir;
} InfiniteLine; // size = 0x18
typedef struct {
/* 0x0000 */ Vec3f a;
/* 0x000C */ Vec3f b;
} Linef; // size = 0x18
// Defines a point in the spherical coordinate system
typedef struct {
f32 r; // radius
s16 pitch; // polar (zenith) angle
s16 yaw; // azimuthal angle
} VecSph; // size = 0x08
#define IS_ZERO(f) (fabsf(f) < 0.008f)
/**
* Trig macros
*/
#define DEGF_TO_BINANG(degreesf) ((s16)(degreesf * (65535.0f / 360.0f) + 0.5f))
#define RADF_TO_DEGF(radf) (radf * (180.0f / M_PI))
#define DEGF_TO_RADF(degf) (degf * (M_PI / 180.0f))
#endif