git subrepo clone https://github.com/HarbourMasters/soh.git

subrepo:
  subdir:   "soh"
  merged:   "ba904bbd0"
upstream:
  origin:   "https://github.com/HarbourMasters/soh.git"
  branch:   "master"
  commit:   "ba904bbd0"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"

soh/include/z64math.h

@@ -0,0 +1,119 @@
+#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)
+
+#ifdef __cplusplus
+#define Vec2f _Vec2f
+#define Vec3f _Vec3f
+#define Vec3s _Vec3s
+#endif
+
+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 {
+    /* 0x00 */ f32 radius;
+    /* 0x04 */ f32 height;
+    /* 0x08 */ f32 yShift;
+    /* 0x0C */ 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 {
+    /* 0x00 */ f32 r;      // radius
+    /* 0x04 */ s16 pitch;  // polar (zenith) angle
+    /* 0x06 */ s16 yaw;    // azimuthal angle
+} VecSph; // size = 0x08
+
+#define LERP(x, y, scale) (((y) - (x)) * (scale) + (x))
+#define LERP32(x, y, scale) ((s32)(((y) - (x)) * (scale)) + (x))
+#define LERP16(x, y, scale) ((s16)(((y) - (x)) * (scale)) + (x))
+#define F32_LERP(v0,v1,t) ((v0) * (1.0f - (t)) + (v1) * (t))
+#define F32_LERPIMP(v0, v1, t) (v0 + ((v1 - v0) * t))
+#define F32_LERPIMPINV(v0, v1, t) ((v0) + (((v1) - (v0)) / (t)))
+#define BINANG_LERPIMP(v0, v1, t) ((v0) + (s16)(BINANG_SUB((v1), (v0)) * (t)))
+#define BINANG_LERPIMPINV(v0, v1, t) ((v0) + BINANG_SUB((v1), (v0)) / (t))
+
+#define VEC3F_LERPIMPDST(dst, v0, v1, t){ \
+    (dst)->x = (v0)->x + (((v1)->x - (v0)->x) * t); \
+    (dst)->y = (v0)->y + (((v1)->y - (v0)->y) * t); \
+    (dst)->z = (v0)->z + (((v1)->z - (v0)->z) * t); \
+}
+
+#define IS_ZERO(f) (fabsf(f) < 0.008f)
+
+// Trig macros
+#define DEGF_TO_BINANG(degreesf) (s16)(degreesf * 182.04167f + .5f)
+#define RADF_TO_BINANG(radf) (s16)(radf * (32768.0f / M_PI))
+#define RADF_TO_DEGF(radf) (radf * (180.0f / M_PI))
+#define DEGF_TO_RADF(degf) (degf * (M_PI / 180.0f))
+#define BINANG_ROT180(angle) ((s16)(angle - 0x7FFF))
+#define BINANG_SUB(a, b) ((s16)(a - b))
+#define DEG_TO_RAD(degrees) ((degrees) * (M_PI / 180.0f))
+#define BINANG_TO_DEGF(binang) ((f32)binang * (360.0001525f / 65535.0f))
+#define BINANG_TO_RAD(binang) (((f32)binang / 32768.0f) * M_PI)
+
+// Vector macros
+#define SQXZ(vec) ((vec.x) * (vec.x) + (vec.z) * (vec.z))
+#define DOTXZ(vec1, vec2) ((vec1.x) * (vec2.x) + (vec1.z) * (vec2.z))
+#define SQXYZ(vec) ((vec.x) * (vec.x) + (vec.y) * (vec.y) + (vec.z) * (vec.z))
+#define DOTXYZ(vec1, vec2) ((vec1.x) * (vec2.x) + (vec1.y) * (vec2.y) + (vec1.z) * (vec2.z))
+
+#endif