96 lines
3.2 KiB
C
Executable file
96 lines
3.2 KiB
C
Executable file
/*
|
|
===========================================================================
|
|
Copyright (C) 1999-2005 Id Software, Inc.
|
|
|
|
This file is part of Quake III Arena source code.
|
|
|
|
Quake III Arena source code is free software; you can redistribute it
|
|
and/or modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2 of the License,
|
|
or (at your option) any later version.
|
|
|
|
Quake III Arena source code is distributed in the hope that it will be
|
|
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Foobar; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
===========================================================================
|
|
*/
|
|
#ifndef __MATHLIB__
|
|
#define __MATHLIB__
|
|
|
|
// mathlib.h
|
|
|
|
#include <math.h>
|
|
|
|
#ifdef DOUBLEVEC_T
|
|
typedef double vec_t;
|
|
#else
|
|
typedef float vec_t;
|
|
#endif
|
|
typedef vec_t vec2_t[3];
|
|
typedef vec_t vec3_t[3];
|
|
typedef vec_t vec4_t[4];
|
|
|
|
#define SIDE_FRONT 0
|
|
#define SIDE_ON 2
|
|
#define SIDE_BACK 1
|
|
#define SIDE_CROSS -2
|
|
|
|
#define Q_PI 3.14159265358979323846
|
|
#define DEG2RAD( a ) ( ( (a) * Q_PI ) / 180.0F )
|
|
#define RAD2DEG( a ) ( ( (a) * 180.0f ) / Q_PI )
|
|
|
|
extern vec3_t vec3_origin;
|
|
|
|
#define EQUAL_EPSILON 0.001
|
|
|
|
// plane types are used to speed some tests
|
|
// 0-2 are axial planes
|
|
#define PLANE_X 0
|
|
#define PLANE_Y 1
|
|
#define PLANE_Z 2
|
|
#define PLANE_NON_AXIAL 3
|
|
|
|
qboolean VectorCompare( const vec3_t v1, const vec3_t v2 );
|
|
|
|
#define DotProduct(x,y) (x[0]*y[0]+x[1]*y[1]+x[2]*y[2])
|
|
#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];}
|
|
#define VectorClear(x) {x[0] = x[1] = x[2] = 0;}
|
|
#define VectorNegate(x) {x[0]=-x[0];x[1]=-x[1];x[2]=-x[2];}
|
|
void Vec10Copy( vec_t *in, vec_t *out );
|
|
|
|
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( const vec3_t v );
|
|
|
|
void VectorMA( const vec3_t va, double scale, const vec3_t vb, vec3_t vc );
|
|
|
|
void CrossProduct( const vec3_t v1, const vec3_t v2, vec3_t cross );
|
|
vec_t VectorNormalize( const vec3_t in, vec3_t out );
|
|
vec_t ColorNormalize( const vec3_t in, vec3_t out );
|
|
void VectorInverse (vec3_t v);
|
|
|
|
void ClearBounds (vec3_t mins, vec3_t maxs);
|
|
void AddPointToBounds( const vec3_t v, vec3_t mins, vec3_t maxs );
|
|
|
|
qboolean PlaneFromPoints( vec4_t plane, const vec3_t a, const vec3_t b, const vec3_t c );
|
|
|
|
void NormalToLatLong( const vec3_t normal, byte bytes[2] );
|
|
|
|
int PlaneTypeForNormal (vec3_t normal);
|
|
|
|
void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point,
|
|
float degrees );
|
|
#endif
|