mirror of
https://github.com/unknownworlds/NS.git
synced 2024-12-13 14:11:44 +00:00
7b18f64309
git-svn-id: https://unknownworlds.svn.cloudforge.com/ns1@16 67975925-1194-0748-b3d5-c16f83f1a3a1
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/***
|
|
*
|
|
* Copyright (c) 1998, Valve LLC. All rights reserved.
|
|
*
|
|
* This product contains software technology licensed from Id
|
|
* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
****/
|
|
|
|
#ifndef __MATHLIB__
|
|
#define __MATHLIB__
|
|
|
|
// mathlib.h
|
|
|
|
#include <math.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifdef DOUBLEVEC_T
|
|
typedef double vec_t;
|
|
#else
|
|
typedef float vec_t;
|
|
#endif
|
|
typedef vec_t vec3_t[3]; // x,y,z
|
|
typedef vec_t vec4_t[4]; // x,y,z,w
|
|
|
|
#define SIDE_FRONT 0
|
|
#define SIDE_ON 2
|
|
#define SIDE_BACK 1
|
|
#define SIDE_CROSS -2
|
|
|
|
#define Q_PI 3.14159265358979323846
|
|
|
|
extern vec3_t vec3_origin;
|
|
|
|
// Use this definition globally
|
|
#define ON_EPSILON 0.01
|
|
#define EQUAL_EPSILON 0.001
|
|
|
|
int VectorCompare (vec3_t v1, vec3_t v2);
|
|
|
|
#define DotProduct(x,y) ((x)[0]*(y)[0]+(x)[1]*(y)[1]+(x)[2]*(y)[2])
|
|
#define VectorFill(a,b) { (a)[0]=(b); (a)[1]=(b); (a)[2]=(b);}
|
|
#define VectorAvg(a) ( ( (a)[0] + (a)[1] + (a)[2] ) / 3 )
|
|
#define VectorSubtract(a,b,c) {(c)[0]=(a)[0]-(b)[0];(c)[1]=(a)[1]-(b)[1];(c)[2]=(a)[2]-(b)[2];}
|
|
#define VectorAdd(a,b,c) {(c)[0]=(a)[0]+(b)[0];(c)[1]=(a)[1]+(b)[1];(c)[2]=(a)[2]+(b)[2];}
|
|
#define VectorCopy(a,b) {(b)[0]=(a)[0];(b)[1]=(a)[1];(b)[2]=(a)[2];}
|
|
#define VectorScale(a,b,c) {(c)[0]=(b)*(a)[0];(c)[1]=(b)*(a)[1];(c)[2]=(b)*(a)[2];}
|
|
|
|
vec_t Q_rint (vec_t in);
|
|
vec_t _DotProduct (vec3_t v1, vec3_t v2);
|
|
void _VectorSubtract (vec3_t va, vec3_t vb, vec3_t out);
|
|
void _VectorAdd (vec3_t va, vec3_t vb, vec3_t out);
|
|
void _VectorCopy (vec3_t in, vec3_t out);
|
|
void _VectorScale (vec3_t v, vec_t scale, vec3_t out);
|
|
|
|
double VectorLength(vec3_t v);
|
|
|
|
void VectorMA (vec3_t va, double scale, vec3_t vb, vec3_t vc);
|
|
|
|
void CrossProduct (vec3_t v1, vec3_t v2, vec3_t cross);
|
|
vec_t VectorNormalize (vec3_t v);
|
|
void VectorInverse (vec3_t v);
|
|
|
|
void ClearBounds (vec3_t mins, vec3_t maxs);
|
|
void AddPointToBounds (vec3_t v, vec3_t mins, vec3_t maxs);
|
|
|
|
void AngleMatrix (const vec3_t angles, float matrix[3][4] );
|
|
void AngleIMatrix (const vec3_t angles, float matrix[3][4] );
|
|
void R_ConcatTransforms (const float in1[3][4], const float in2[3][4], float out[3][4]);
|
|
|
|
void VectorIRotate (const vec3_t in1, const float in2[3][4], vec3_t out);
|
|
void VectorRotate (const vec3_t in1, const float in2[3][4], vec3_t out);
|
|
|
|
void VectorTransform (const vec3_t in1, const float in2[3][4], vec3_t out);
|
|
|
|
void AngleQuaternion( const vec3_t angles, vec4_t quaternion );
|
|
void QuaternionMatrix( const vec4_t quaternion, float (*matrix)[4] );
|
|
void QuaternionSlerp( const vec4_t p, vec4_t q, float t, vec4_t qt );
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|